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Ready to lead, disrupt and reinvent the sleep industry? We are Emma â- The Sleep Company. Founded in 2015, weâ've become the worldâ's largest D2C sleep brand, available in over 35 countries with more than 25 stores across Europe. Recommended by leading consumer associations in EMEA, APAC, and the Americas, we develop the best sleep comfort products that empower our customers to awaken their best every day. At Emma, we are a community of smart, driven people, united by a strong culture of collaboration, teamwork, and knowledge sharing. We think big, take ownership, and are empowered to drive meaningful impact. Through hands-on experience, mentorship, and continuous learning, we drive our own growth and learning. With Emmies from over 60 nationalities and offices across multiple regions, our diverse perspectives enrich our workplace culture. Ready to shape the future of sleep with us? Letâ's make it happen! \n What you'll do: You will take part in architecture, design, and implementation of Emmaâ's technology platform, supporting our growth to become the number-one sleep brand in the world You will implement product features that will help improve peopleâ's sleep and support Emma's core business. You will support in developing, maintaining, and operating (full DevOps) your teamâ's tech stack You will contribute to the improvement of our CI&CD and DevOps & SRE practices You will be a team player as part of an agile, empowered team, get acquainted with mobile development topics and learn to perfect your code Who we're looking for: You are available to start 1st of March 2026 You are currently pursuing or have completed a degree in Computer Science, Computer or Electrical Engineering, Business Informatics, or have equivalent relevant work experience. You are understanding of computer science fundamentals, including data structures, object-oriented programming, and software design patterns. You are familiar with JavaScript or Golang as your primary backend programming language. You are aware of the importance of maintaining a well-organized codebase and proper documentation. You are bringing ideally some first experience in software development and operational practices across the full software development lifecycle, ideally within an E-commerce environment. You are self-organized and interested in taking ownership and guiding the team toward the best solution. You are equipped with strong analytical skills and are an open-minded, creative team player. You are someone for whom having a public GitHub, GitLab, or Bitbucket account with demonstrable coding projects would be considered a plus. Tech Stack: Typescript/JavaScript/Golang What we offer: A competitive Package of 1250â monthly (including meal allowance and Coverflex benefits) Employee discount on Emma products for yourself, friends and family (applicable in all EU markets) Private health insurance including dental care In-house Portuguese classes from beginner to advanced level A combination of personal and company growth to accelerate your career and help you reach your goals The chance to work on exciting and challenging projects either independently or as part of a dedicated, international team Responsibility and decision-making authority from day oneâ—you'll create an impact with new, innovative ideas and help shape our company DNA To work and learn from experts in diverse fields and get to know your team members at exciting company events \n Become an Emmie Emma is transforming the world of sleep - and we want the highest-performing people to help us pull it off. We want you. But only if you're willing to go all in. Only if you're willing to question, disrupt, innovate, and create from the ground up. â We proudly celebrate diversity. We are an equal-opportunity employer committed to promoting inclusion in our workplace. We consider all qualified applicants for employment without regard to race, ethnic origin, religion or belief, gender, gender identity or expression, sexual orientation, national origin, disability, or age. Our aim is to get back to you in a couple of days, however, we are currently receiving a large number of applications and this might lead to a delay in the process. We will get back to you as soon as possible!

Software Engineering Intern

Software Engineering Intern at Emma, we are a community of smart, driven people

Headquarters: Anywhere URL: http://https:/jiga.io/about-us What we're building Jiga is on a mission to help engineers build physical products faster. Think npm install for mechanical engineers - we're building the infrastructure that makes hardware development as fast as software. How we actually work We’re a small remote team made up of the best of the best. Our team members are distributed around the globe. While most of our product and engineering talent is located in Europe and Israel, you’ll also work with people from the US and Asia. Most of our work is made async, which is the secret sauce of our success. High trust, low bullshit: We don't count hours or peek over your shoulder on Slack. We trust you to get your work done and tell us when something's wrong. You'll have real ownership over what you build: which means you'll make a lot of decisions about architecture and functionality without endless approval cycles. (If that sounds terrifying, we're probably not a good fit. If that sounds exciting, keep reading.) Question everything: See something that doesn't make sense? Say it. Have a better way to do something? Just do it. We actually mean it when we say we want people to challenge the status quo and improve things. Our internal motto is “Don’t drink the kool-aid” No stupid Meetings: One weekly all-hands. One dev team sync. That's literally it. Everything else happens async in Slack or Loom. Your calendar will be beautifully, gloriously empty. Actually friendly, not corporate friendly: We play games online every week (current favorite: Make it Meme). Once a year we fly everyone somewhere beautiful for our offsite (Greece, here we come). We genuinely like hanging out together, which turns out to be way better than forced "team building exercises." What we value in engineering: Simple > Complicated. Simple code, simple architecture; Simple solutions are better than complex ones. Ship it, then improve it. Perfection is the enemy of done. Launch now, iterate forever. Product > Engineering. Every line of code should make our users' lives better. We're not here to show off our algorithmic prowess - we're here to solve real business problems. Financials Jiga is fully funded, cashflow positive, with growing revenue MoM. We're completely transparent about our runway and finances - ask us anything. You'll love it here if You want to actually own things. Not "ownership" where you need three approvals to change a button color. Real ownership where you decide what to build, how to build it, and when to ship it. You're genuinely full-stack - you're equally happy building a slick UI component or optimizing a database query. There's no task you'd refuse because it's "not your specialty." You care about the product, not just the code. You want to understand why we're building something and you'll push back if it doesn't make sense. You are motivated to run a marathon and ring the bell with us in 3-4 years from now. Bureaucracy makes you want to scream. Multiple approval layers, process for the sake of process, corporate theatre - if these sound like your nightmare, welcome home. You love shipping. Like, you get genuinely excited when you push to production. That "it's alive!" feeling never gets old. You work fast because you're having fun, not because someone's watching you. This might not be for you if You hate ambiguity. You prefer clear, detailed task assignments and well-defined requirements You like having management to check in, review and verify your work multiple times until it’s perfect You're looking for a cuddly, 9-5, corporate job where you can coast a bit You like the smell of gasoline and motor oil while driving to the office every day (sorry, we are 100% remote) You like weeks of architecting over-complicated solutions (No judgment if that's what you want - it's just not what we are.) What you need 3+ years building full-stack web applications end-to-end Strong at React + Node.js. MongoDB experience is a great plus. Experience building complex applications - you understand clean architecture, security, scaling, performance, and maintainability Solid data modeling fundamentals Product company experience (you've felt the joy and pain of real users) Some overlap with GMT+3 working hours so we can actually talk to you sometimes What we offer No ping pong tables. No beer kegs. No "unlimited vacation" that nobody takes. No ice cream fridge at the office. Oh right, we don't even have an office. Here's what we do have: A small team where you matter - we never compromise on people, that means you are part of the best team in the world. Zero bureaucracy - we hate process theatre as much as you do Real ownership and responsibility - make decisions, ship code, own the outcomes. Have real impact on the product from day 1. Complete flexibility - work from anywhere, set your own hours, take time off when you need it (parents and DMs are very welcome) Genuinely high trust - we trust you to do great work and be honest when things go sideways A team that actually likes each other - international, diverse, genuinely friendly people who enjoy working together Generous stock options - we’re looking for partners to run a marathon with us, you will get a life-changing shares when we get to the finish line Competitive salary and PTOs - so you can also enjoy, relax and recharge Self-development budget for books, courses, conferences, whatever helps you grow Annual offsite in beautiful places (greece, here we come!) Fast-paced environment with tons of creative freedom Hard, interesting problems with a team that's positioned to win big To apply: https://weworkremotely.com/remote-jobs/jiga-full-stack-product-engineer

Jiga: Full Stack Product Engineer

Jiga: Full Stack Product Engineer at Jiga

About KOHO Weâ're on a mission to make financial services better for every Canadian. That means no hidden fees, no predatory interest rates - just financial products designed to help our users spend smart, save more, and build real wealth. Weâ're a performance organization with a strong heart: we care deeply about outcomes, and everything ties back to our mission - to financially empower a generation of Canadians. At KOHO, weâ're not your average 9-5. We believe real impact comes from people who are trusted, empowered, and supported to do their best work - without sacrificing their lives to do it. We prioritize work-life integration, not just work-life balance. That means asynchronous collaboration, flexible hours, and a remote-first setup built around autonomy and high trust. KOHO is entering its next chapter - leaner, smarter, more AI-integrated. Weâ're building for impact, not bureaucracy. If you thrive in environments that value clarity, ownership, and bold thinking, youâ'll fit right in. What You'll Be Doing You'll be writing backend code in Go with guidance from senior team members, implementing well-defined features and bug fixes You'll be working with PostgreSQL and Dynamo DB You'll be learning about message-driven architectures with RabbitMQ and how services communicate You'll be making small changes to frontend applications (Angular/Ionic for mobile, React for web) with support from frontend-focused teammates You'll be implementing small to medium features end-to-end, following established patterns and receiving code review feedback You'll be participating in code reviews to learn from others and improve your skills You'll be shadowing on-call rotations to learn production operations before joining the rotation independently You'll be breaking down stories into tasks with guidance from more experienced engineers Who You Are You have some experience with Go (coursework, personal projects, or 1+ years professionally) and are eager to deepen your knowledge You understand basic programming concepts like data structures, control flow, and functions You have basic SQL knowledge and can write SELECT queries; you're excited to learn more about database design You understand REST APIs at a basic level and want to learn how to design and implement them You have fundamental HTML/CSS/JavaScript knowledge and are interested in learning how frontends work Basic understanding of Git and version control workflows You're curious and ask good questions when you don't understand something You're comfortable admitting when you don't know something and actively seek help You enjoy learning from code reviews and iterate quickly based on feedback You're excited to work on production systems and learn operational best practices Nice to Have Familiarity with Docker or containerization concepts Any experience with React, Angular, or other JavaScript frameworks Exposure to cloud platforms (AWS, GCP, Azure) Experience working in a team environment or contributing to open source Description de poste en franÃais Nous sommes Ã la recherche dâ'un(e) dÃveloppeur(euse) logiciel I pour se joindre Ã notre Ãquipe dans un rÃ´le en tÃlÃtravail, basÃ au Canada. Relevant du/de la gestionnaire en ingÃnierie, vous ferez partie dâ'une Ãquipe qui vise Ã briser les silos entre le dÃveloppement frontend et backend afin de livrer des fonctionnalitÃs plus rapidement et avec moins de transferts. Nous cherchons un(e) dÃveloppeur(euse) backend avec une solide expÃrience en Go, qui maÃ®trise aussi les bases du dÃveloppement frontend â— quelquâ'un qui veut voir ses API prendre vie dans lâ'interface utilisateur, comprendre le cycle de vie complet des fonctionnalitÃs et Ãvoluer vers un rÃ´le dâ'ingÃnieur(euse) full-stack. Ce que vous ferez DÃvelopper des services backend en Go, travailler avec PostgreSQL et DynamoDB, implanter des architectures orientÃes messages avec RabbitMQ et contribuer Ã des systÃmes en production. Participer au dÃveloppement frontend en apportant des changements Ã notre application mobile (Angular/Ionic), Ã notre application web (React) et Ã nos outils dâ'administration, avec le soutien de collÃgues spÃcialisÃs en frontend. Prendre en charge des fonctionnalitÃs de taille moyenne Ã grande de bout en bout, en collaborant avec des ingÃnieur(e)s seniors pour concevoir les solutions et en implÃmentant les composantes backend et frontend. DÃcouper des Ãpiques en histoires gÃrables, identifier les risques techniques et travailler de faÃon autonome sur la plupart des tÃches. Faire partie de la rotation de garde (on-call), apprendre Ã surveiller et gÃrer vos fonctionnalitÃs en production Ã lâ'aide de Datadog et dâ'autres outils dâ'observabilitÃ. RÃviser des pull requests et offrir de la rÃtroaction pour aider les autres dÃveloppeur(euse)s Ã apprendre et Ã progresser. Profil recherchÃ Solide expÃrience backend avec Go, incluant la comprÃhension des goroutines, des channels et des meilleures pratiques Go. Ã lâ'aise avec PostgreSQL et DynamoDB, et capable dâ'Ãcrire des requÃtes SQL efficaces. ExpÃrience avec les API RESTful et capacitÃ Ã concevoir des endpoints qui rÃpondent aux besoins des applications frontend. Connaissances en dÃveloppement frontend â— vous comprenez les bases HTML/CSS/JavaScript et Ãtes motivÃ(e) Ã travailler avec React et Angular. CuriositÃ pour le cheminement complet dâ'une requÃte, du clic dans lâ'UI jusquâ'Ã la requÃte en base de donnÃes, et dÃsir de comprendre comment toutes les piÃces sâ'imbriquent. Esprit dâ'Ãquipe : vous soutenez les autres de faÃon proactive, posez des questions quand vous Ãtes bloquÃ(e) et documentez ce que vous apprenez. Ã lâ'aise de travailler sur des systÃmes en production et prÃt(e) Ã joindre la rotation de garde avec lâ'appui de lâ'Ãquipe. Atouts ExpÃrience avec les services AWS (EKS, RDS, IAM). FamiliaritÃ avec les files de messages (RabbitMQ). Exposition aux frameworks frontend (React ou Angular de prÃfÃrence). ComprÃhension de base de la conteneurisation et de Kubernetes. ExpÃrience avec des outils dâ'observabilitÃ (Datadog, OpenTelemetry). KOHO is for builders. If youâ're energized by challenge, motivated by mission, and want to be part of a team that punches above its weight - we want to hear from you. The KOHO culture is one of collaboration, creativity, and diverse perspectives. We are committed to building and fostering an inclusive, accessible environment for everyone. If you have any questions, concerns, or requests regarding accessibility needs, please contact peopleaccessibility@koho.ca and the People and Culture team will be happy to help. AI Disclosure: KOHO uses artificial intelligence (AI) in certain aspects of its recruitment process to screen, assess, or select applicants. For any questions or concerns, please contact us at talent@koho.ca. Note: this posting is for an existing vacancy that we are seeking to fill. #LI-Remote

Junior Software Developer Full Stack

Junior Software Developer Full Stack at KOHO

What we're building Jiga is on a mission to help engineers build physical products faster. Think npm install for mechanical engineers - we're building the infrastructure that makes hardware development as fast as software. How we actually work Weâ're a small remote team made up of the best of the best. Our team members are distributed around the globe. While most of our product and engineering talent is located in Europe and Israel, youâ'll also work with people from the US and Asia. Most of our work is made async, which is the secret sauce of our success. High trust, low bullshit: We don't count hours or peek over your shoulder on Slack. We trust you to get your work done and tell us when something's wrong. You'll have real ownership over what you build: which means you'll make a lot of decisions about architecture and functionality without endless approval cycles. (If that sounds terrifying, we're probably not a good fit. If that sounds exciting, keep reading.) Question everything: See something that doesn't make sense? Say it. Have a better way to do something? Just do it. We actually mean it when we say we want people to challenge the status quo and improve things. Our internal motto is â"Donâ't drink the kool-aidâ" No stupid Meetings: One weekly all-hands. One dev team sync. That's literally it. Everything else happens async in Slack or Loom. Your calendar will be beautifully, gloriously empty. Actually friendly, not corporate friendly: We play games online every week (current favorite: Make it Meme). Once a year we fly everyone somewhere beautiful for our offsite (Greece, here we come). We genuinely like hanging out together, which turns out to be way better than forced "team building exercises." What we value in engineering: Simple > Complicated. Simple code, simple architecture; Simple solutions are better than complex ones. Ship it, then improve it. Perfection is the enemy of done. Launch now, iterate forever. Product > Engineering. Every line of code should make our users' lives better. We're not here to show off our algorithmic prowess - we're here to solve real business problems. Financials Jiga is fully funded, cashflow positive, with growing revenue MoM. We're completely transparent about our runway and finances - ask us anything. You'll love it here if You want to actually own things. Not "ownership" where you need three approvals to change a button color. Real ownership where you decide what to build, how to build it, and when to ship it. You're genuinely full-stack - you're equally happy building a slick UI component or optimizing a database query. There's no task you'd refuse because it's "not your specialty." You care about the product, not just the code. You want to understand why we're building something and you'll push back if it doesn't make sense. You are motivated to run a marathon and ring the bell with us in 3-4 years from now. Bureaucracy makes you want to scream. Multiple approval layers, process for the sake of process, corporate theatre - if these sound like your nightmare, welcome home. You love shipping. Like, you get genuinely excited when you push to production. That "it's alive!" feeling never gets old. You work fast because you're having fun, not because someone's watching you. This might not be for you if You hate ambiguity. You prefer clear, detailed task assignments and well-defined requirements You like having management to check in, review and verify your work multiple times until itâ's perfect You're looking for a cuddly, 9-5, corporate job where you can coast a bit You like the smell of gasoline and motor oil while driving to the office every day (sorry, we are 100% remote) You like weeks of architecting over-complicated solutions (No judgment if that's what you want - it's just not what we are.) What you need 3+ years building full-stack web applications end-to-end Strong at React + Node.js. MongoDB experience is a great plus. Experience building complex applications - you understand clean architecture, security, scaling, performance, and maintainability Solid data modeling fundamentals Product company experience (you've felt the joy and pain of real users) Some overlap with GMT+3 working hours so we can actually talk to you sometimes What we offer No ping pong tables. No beer kegs. No "unlimited vacation" that nobody takes. No ice cream fridge at the office. Oh right, we don't even have an office. Here's what we do have: A small team where you matter - we never compromise on people, that means you are part of the best team in the world. Zero bureaucracy - we hate process theatre as much as you do Real ownership and responsibility - make decisions, ship code, own the outcomes. Have real impact on the product from day 1. Complete flexibility - work from anywhere, set your own hours, take time off when you need it (parents and DMs are very welcome) Genuinely high trust - we trust you to do great work and be honest when things go sideways A team that actually likes each other - international, diverse, genuinely friendly people who enjoy working together Generous stock options - weâ're looking for partners to run a marathon with us, you will get a life-changing shares when we get to the finish line Competitive salary and PTOs - so you can also enjoy, relax and recharge Self-development budget for books, courses, conferences, whatever helps you grow Annual offsite in beautiful places (greece, here we come!) Fast-paced environment with tons of creative freedom Hard, interesting problems with a team that's positioned to win big How to apply: Send us a short blurb about yourself and your favorite ice cream flavor. (Mine's cookies. Please donâ't write â"Vanilla JSâ" )

Full Stack Product Engineer

Headquarters: Sweden URL: http://career.proxify.io The Role: We are looking for a Senior Fullstack Developer skilled in React.js and Node.js for one of our clients. You are a perfect candidate if you are growth-oriented, you love what you do, and you enjoy working on new ideas to develop exciting products. What we are looking for: 5+ years experience as a Fullstack Developer. Backend experience with: Node.js Microservices architecture Database experience with: SQL MongoDB Intermediate-advanced English Nice-to-have: Located in CET timezone (+/- 3 hours). Database Architecture knowledge. Responsibilities: Ability to build libraries and frameworks of reusable efficient code. Competence in designing and implementing low-latency, stable and performing applications. Capacity to effectively collaborate with other team members and stakeholders remotely. Ability to implement data protection systems. Competence in data storage solutions. What we offer: Get paid, not played No more unreliable clients. Enjoy on-time monthly payments with flexible withdrawal options. Predictable project hours Enjoy a harmonious work-life balance with consistent 8-hour working days with clients. Flex days, so you can recharge Enjoy up to 24 flex days off per year without losing pay, for full-time positions found through Proxify. Career-accelerating positions at cutting-edge companies Discover exclusive long-term remote positions at the world's most exciting companies. Hand-picked opportunities just for you Skip the typical recruitment roadblocks and biases with personally matched positions. One seamless process, multiple opportunities A one-time contracting process for endless opportunities, with no extra assessments. Compensation Enjoy the same pay, every month with positions landed through Proxify. To apply: https://weworkremotely.com/remote-jobs/proxify-ab-senior-fullstack-developer-react-js-node-js-1

Proxify AB: Senior Fullstack Developer (React.js & Node.js)

Proxify AB: Senior Fullstack Developer (React.js & Node.js) at Proxify AB

We are currently seeking 2 Cloud Full Stack Python Developers (AWS). In addition to contributing code and tangible deliverables, you will be expected to work as an advisor to help identify, educate, and foster best-in-class solutions. Creating these relationships requires strong communication skills and a passion for solving complex challenges. \n About Us: At Railroad19, Inc., we build custom solutions and provide our clients with top tier development services. Weâ're a specialized team of developers and architects, which means, we only bring an â"Aâ" team to the table. Our culture is built on hard work and a desire to be thought leaders in the industry, this is what sets Railroad19 apart. When you join Railroad19 you are part of a company that values your work and gives you the tools you need to succeed, while offering you a work/life balance. We are headquartered in Saratoga Springs, New York, but we are a distributed team across the US. This is a full-time position with comprehensive benefits, vacation, 401k and more. Railroad19 provides competitive compensation with excellent benefits and a great corporate culture. The role is remote role (U.S. Only), only full time (NO- contractors, Corp-to-Corp or 1099). Core responsibilities: Minimum 5 years of related experience in software engineering, or an equivalent combination of education/experience Understand our client's fast-moving business requirements and work effectively in teams and with the client. Be able to understand business requirements and work effectively in teams and with the client. Negotiate appropriate solutions with multiple stakeholders Write and maintain scalable enterprise-quality software while building a serverless cloud with Python Proficiency in Python, React and AWS Cloud Build Microservices that connect to NoSQL databases, DynamoDB preferred Experience working in secure internal network environments and complex cloud networks Build software components that integrate with a workflow engine and/or ESB to execute asynchronous business processes Manage the complete software development life cycle Writing functional and unit tests to maintain code quality Write software using modern software engineering techniques that minimize defects. Identify new opportunities, tools, and services to enhance the custom software platform Support and troubleshoot issues (process & system), identify root cause, and proactively recommend sustainable corrective actions Skills & Experience 5+ years of experience in Python development working in an enterprise environment. Hands-on experience managing distributed systems and clusters Full-stack experience working with Front End development in JavaScript/Typescript Solid experience working with React (additional experience with Angular is a plus) Strong knowledge of SQL/Postgres Experience building cloud applications with AWS serverless technologies, including State machines, ECS Fargate Demonstrates a willingness to learn new technologies and takes pride in delivering working software Excellent oral and written communication skills Experience participating on an agile team Is self-directed and can effectively contribute with little supervision Bachelor's or master's degree in computer science, computer engineering, or another technical discipline; Nice to Have's Docker Java NodeJs UI/UX \n $120,000 - $150,000 a year \n Competitive salaries and eligibility for a yearly bonus Excellent Health Care, Dental and Vision benefits 3 weeks vacation, 401K match eligibility, work-life balance No Agencies*** This is a non-management position This is a full-time position We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender, gender identity or expression, or veteran status. We are proud to be an equal opportunity workplace.

Cloud Full Stack Python Software Engineer US

Cloud Full Stack Python Software Engineer US at Railroad19, Inc.

About Arize AI is rapidly transforming the world. As generative AI reshapes industries, teams need powerful ways to monitor, troubleshoot, and optimize their AI systems. Thatâ's where we come in. Arize AI is the leading AI & Agent Engineering observability and evaluation platform, empowering AI engineers to ship high-performing, reliable agents and applications. From first prototype to production scale, Arize AX unifies build, test, and run in a single workspaceâ—so teams can ship faster with confidence. Weâ're a Series C company backed by top-tier investors, with over $135M in funding and a rapidly growing customer base of 150+ leading enterprises and Fortune 500 companies. Customers like Booking.com, Uber, Siemens, and PepsiCo leverage Arize to deliver AI that works. The Opportunity Weâ're looking for a Senior Frontend Engineer who cares deeply about how fast, stable, and intuitive complex AI systems feel in the browser. Youâ'll spend the vast majority of your time in React + TypeScript, owning frontend architecture, performance, and instrumentation. Our customers are high performing teams running agents and models in production. Your job is to make those workflows feel instant, predictable, and trustworthy. What Youâ'll Do Spend most of your time building rich, performant frontend experiences in React + TypeScript (dashboards, traces, configuration flows, real-time views). Collaborate with backend engineers on requirements, define API contracts, implement UI, and ship with metrics, logs, and alerts wired up. Design and implement patterns built for scale that work under real data and load. Lead frontend architecture decisions around routing, data fetching, caching, and state management. Mentor junior engineers and help them grow their skills.

Senior Frontend Engineer

Senior Frontend Engineer at Arize
AI is rapidly transforming the world

Whatâ's in it for you? Ready to make a serious impact? Millions of people already rely on Calendly, and weâ're still in the midst of exciting product growth â— itâ's a fantastic time to join us. Everything youâ'll work on here will accelerate your career to the next level. If you want to learn, grow, and do the best work of your life alongside the best people youâ've ever worked with, then we hope youâ'll consider allowing Calendly to be a part of your professional journey. About the team & opportunity Whatâ's so great about working on Calendlyâ's Engineering team? We make things possible for our customers through innovation. Why do we need you? Well, we are looking for a Full Stack Engineer who will bring technical know-how and enthusiasm to our team. You will report to one of our Engineering Managers and will be responsible for supporting features and architecture designed to maintain our usersâ' confidence in Calendly. A day in the life of a Full Stack Engineer at Calendly The Calendly platform is a monolith that is being decomposed into various services in order for us to scale our platform and team. We need ambitious, experienced engineers who can help us drive this stage of growth. As an engineer at Calendly, you will both build new features and work to scale our platform and architecture. You will build tooling and automation to fine tune our delivery process as you grow into a service oriented specialist. You will also learn to work with multiple technologies such as Google Cloud Platform, Kubernetes, Argo Workflows, Typescript, Rails, NodeJS, React, PostgreSQL, Redis, to name a few. When you join Calendly, you get the opportunity to deliver on a product used by millions and known for its best-in-class quality. Help us continue to deliver critical features to our users with excellence. On a typical day, you will be working on: Collaborating within your team to build new features that are targeted at our highest impact enterprise customers Contributing to platform scaling initiatives Meeting regularly with Product and Design to fine tune requirements Attending agile ceremonies to help your team plan out their work and get it done Working across squads to improve Engineering practices at Calendly Reviewing implementation plans and pull requests from your peers Mentoring and coaching other team members What do we need from you? 2-5 years of professional software development experience in a SaaS or technology-driven environment. Strong proficiency in front-end web development using React and TypeScript, with an understanding of backend engineering principles and practices. Experience building and maintaining Node.js services that interface with distributed APIs, or similar mixed-stack environments. Hands-on experience with Service-Oriented Architectures (SOA), microservices, and involvement in monolith-to-services modernization or large-scale refactoring initiatives. Proven ability to work collaboratively in a team environment.

Full Stack Engineer Contacts

, a critical security vulnerability has been discovered in the React Server Components protocol, identified as CVE-2025-66478. This vulnerability affects applications using React Server Components and requires immediate attention from development teams running affected versions.

The vulnerability exists in the serialization layer of React Server Components, specifically in how server-rendered component props are transmitted to the client. The flaw allows potential exploitation through carefully crafted payloads that can bypass security checks during the deserialization process.

This isn't just another routine security patch. The React Server Components architecture fundamentally changed how data flows between server and client, introducing new serialization mechanisms that differ significantly from traditional SSR approaches. The vulnerability targets this specific protocol layer, where component props and server actions are encoded for transmission.

The affected versions span multiple framework releases that implement RSC:

- React versions 18.3.0 through 19.0.0 when used with RSC-compatible frameworks

Patched versions include Next.js 15.0.4+ and React 19.0.1+, along with backported fixes for earlier major versions still in active support.

The immediate concern centers on applications that use server actions or pass complex objects as props to server components. The vulnerability specifically affects scenarios where user input flows through server components without proper validation at the protocol level.

Consider a typical server action pattern:

The vulnerability doesn't stem from the application logic itself, but from how the RSC protocol handles the serialized data before it reaches your server action. An attacker could potentially craft malicious payloads that exploit the deserialization process.

Mobile developers using React Native with RSC-compatible frameworks face similar concerns, though the attack surface differs slightly due to the native bridge layer. Cross-platform applications that share server component code between web and native need to ensure both environments receive the patched versions.

The RSC protocol uses a custom serialization format that differs from standard JSON. It needs to handle special types like promises, server references, and component trees that traditional serialization can't represent. This custom format introduced edge cases in the deserialization logic.

The vulnerability likely exists in how the protocol handles circular references or deeply nested structures. Developers familiar with prototype pollution attacks in JavaScript will recognize similar patterns here. The deserialization process could be tricked into creating objects with unexpected properties or prototype chains.

Here's what a safer implementation pattern looks like after patching:

While this validation helps at the application layer, the protocol-level fix prevents exploitation before your code even executes.

Teams need to audit their server components for patterns that accept complex user input. Priority should go to:

1. Server actions that parse JSON from form data - These directly expose the vulnerable deserialization path

2. Dynamic imports in server components - If user input influences what gets imported

3. Third-party libraries that use RSC - Check if dependencies need updates too

The mobile-first perspective adds another dimension. React Native applications using frameworks like Expo with RSC support need coordinated updates across both the native app bundle and backend infrastructure. This isn't a simple npm update situation for mobile teams.

For applications in production, the mitigation path depends on your deployment setup:

Edge runtime deployments need special attention. If you're using Vercel Edge Functions or Cloudflare Workers with RSC, ensure your edge runtime versions also receive the security patches. The edge environment uses different serialization optimizations that might have distinct vulnerability characteristics.

The patched versions maintain backward compatibility for most use cases, but teams should test thoroughly. The serialization format changes might affect:

- Development tools that parse the RSC protocol

- Testing utilities that mock server components

For teams that can't immediately upgrade due to other dependencies, temporary mitigations include:

- Implementing strict input validation at every server action entry point

- Adding rate limiting to server action endpoints

- Monitoring for unusual payload patterns in server logs

- Restricting server component usage to internal, authenticated routes only

These mitigations don't fix the underlying vulnerability but reduce the attack surface while teams coordinate upgrades.

React Native developers using Expo Router with RSC features need to consider the native build cycle. Unlike web deployments that can update instantly, mobile apps require:

1. Updating the JavaScript bundle (can be done via OTA updates)

2. Potentially updating native dependencies if the fix touches native modules

3. Submitting new builds to app stores if native changes are required

The good news: most RSC implementations in React Native run entirely in the JavaScript layer, so OTA updates through Expo Updates or similar services should suffice for most teams.

Developers should prioritize this update in their sprint planning. The critical severity rating indicates active exploitation potential, making this more urgent than typical dependency updates.

For detailed technical information and official patch notes:

Monitor your framework's GitHub repository for additional security advisories, as the RSC ecosystem continues to evolve rapidly. Security researchers will likely discover related issues as they investigate the protocol more thoroughly following this disclosure.

React Native Security: CVE-2025-66478 Explained

Animation libraries have become essential tools for creating engaging user interfaces in React applications. While Framer Motion has dominated the React animation space for years, Motion One emerged as a lightweight alternative that challenges the status quo. Both libraries offer declarative APIs and powerful animation capabilities, but they take fundamentally different approaches to solving the same problems.

The most significant difference between these libraries lies in their underlying architecture. Framer Motion builds on top of React's component model, providing a comprehensive animation framework tightly integrated with React's lifecycle. The library weighs in at approximately 32KB minified and gzipped, which includes its entire feature set.

Motion One takes a different path. Built on the Web Animations API (WAAPI), it provides a framework-agnostic core that React bindings wrap around. The base Motion library is just 4KB, while the React-specific @motionone/react package adds another 2KB. This architectural decision results in a dramatically smaller footprint—roughly 85% smaller than Framer Motion.

The bundle size difference matters most for mobile applications and sites where every kilobyte counts toward performance metrics. Teams working on content-heavy sites or mobile-first applications often find Motion One's smaller footprint compelling.

Framer Motion provides an extensive API surface with specialized components for different use cases. The motion component can wrap any HTML element or React component, offering props like whileHover, whileTap, whileInView, and gesture controls out of the box.

Motion One provides a more minimal API focused on core animation primitives. While it doesn't include built-in gesture handlers, it integrates well with libraries like @use-gesture/react when those features are needed. The philosophy centers on keeping the core small and composable.

Both libraries leverage hardware-accelerated CSS properties when possible, but their performance profiles differ in specific scenarios. Motion One's reliance on WAAPI means animations run on the compositor thread by default when animating transform and opacity properties. This provides consistent 60fps animations with minimal JavaScript overhead.

Framer Motion uses its own animation engine that provides more control over timing and complex animation sequences. The library includes features like automatic layout animations and shared element transitions that require JavaScript-driven calculations. For simple animations, the performance difference is negligible. Complex orchestrations or layout animations show where each library's strengths lie.

The layout prop in Framer Motion automatically animates position and size changes, even when triggered by content changes or DOM reflows. Motion One doesn't include this feature natively, requiring developers to implement layout animations manually using FLIP techniques or similar approaches.

Framer Motion ships with sophisticated spring physics that feel natural and responsive. The spring animations automatically adjust their duration based on the distance traveled and provide realistic motion that responds to interruptions mid-animation.

Motion One takes a different approach to springs. The library uses the spring easing function from Motion, which approximates spring physics using duration-based animations. While this doesn't provide the same physics-based interruption handling, it performs better and integrates seamlessly with WAAPI.

Framer Motion's variant system provides powerful tools for coordinating animations across multiple elements. Variants define named animation states that can propagate through component trees, enabling complex choreography with minimal code.

Motion One doesn't include a built-in variant system. Developers working with Motion One typically manage animation states through React state and props, which provides more explicit control but requires more boilerplate for complex orchestrations.

For React Native applications, Framer Motion offers framer-motion-3d and works with react-native-reanimated through community adapters, though support varies. The library wasn't designed with React Native as a primary target.

Motion One's architecture makes it web-specific—it depends on WAAPI, which doesn't exist in React Native. Teams building cross-platform applications need separate animation solutions for native platforms, though the imperative animate function from Motion can work with custom drivers.

Mobile web performance differs between the libraries. Motion One's smaller bundle and WAAPI foundation typically provide better performance on lower-end mobile devices. Framer Motion's JavaScript-driven animations may cause jank on devices with limited processing power, particularly when animating multiple elements simultaneously.

Choosing between these libraries depends on specific project requirements. Framer Motion excels in applications requiring sophisticated animation orchestration, layout animations, or gesture-driven interfaces. The comprehensive API reduces the need for additional libraries, and the variant system simplifies complex animation sequences.

Motion One suits projects prioritizing bundle size and performance. Applications with simpler animation needs, content-focused sites, or progressive web apps benefit from the minimal footprint. The library requires more manual work for advanced features, but this explicitness can lead to more maintainable code in some contexts.

Both libraries integrate well with modern React patterns. They support concurrent rendering in React 18+, work with Server Components (with appropriate client boundaries), and provide TypeScript definitions. Neither library causes hydration mismatches when used correctly, though both require care when animating on mount to avoid flickers.

The landscape of React animation libraries continues evolving. Framer Motion remains the go-to choice for feature-rich applications where animation is central to the user experience. Its comprehensive API, excellent documentation, and active community make it reliable for production use.

Motion One represents a compelling alternative for teams conscious of bundle size and performance. The library's minimal footprint and WAAPI foundation provide excellent performance characteristics, particularly on mobile devices. However, developers should expect to write more code for advanced features that Framer Motion handles automatically.

The choice ultimately depends on project constraints. Applications with complex animation requirements benefit from Framer Motion's batteries-included approach. Projects prioritizing performance and bundle size, or those with simpler animation needs, find Motion One's lightweight architecture advantageous. Both libraries have earned their place in the React ecosystem, serving different needs within the animation space.

Framer Motion vs Motion One: Mobile Animation Performance in 2025

I've been building data-heavy mobile apps lately and spent way too much time evaluating table libraries. The React ecosystem has some solid options, but they're wildly different in approach. Let me break down what I've learned from actually shipping these in production.

TanStack Table (React Table v8): The Headless Powerhouse

TanStack Table is what React Table became after v7. It's completely headless, meaning zero UI components included. At first this felt like extra work, but honestly? It's perfect for mobile-first development where you need total control over rendering.

The core philosophy here is that TanStack handles the state management and logic while you handle every pixel of the UI. This makes it incredibly flexible but requires more initial setup.

The API is hook-based and composable. Want sorting? Add getSortedRowModel(). Need filtering? Toss in getFilteredRowModel(). I've found this modular approach keeps bundle sizes reasonable - you only ship what you actually use.

The mobile catch: On smaller screens, traditional tables suck. With TanStack's headless approach, I can easily switch to card layouts or accordions based on viewport width without fighting against built-in styles. The same table logic works whether I'm rendering a desktop grid or mobile cards.

Performance-wise, it handles 10k+ rows without breaking a sweat if you enable virtualization. The column pinning feature is surprisingly smooth even on mid-range Android devices.

AG Grid is what you reach for when your PM says "we need Excel but in the browser." It's massive, feature-complete, and honestly overkill for most mobile apps. But sometimes you need that firepower.

The free community version is already packed with features. The enterprise version adds stuff like row grouping, aggregation, and server-side operations that become essential at scale.

Here's the thing about AG Grid on mobile: it's not really built for it. The default experience on a phone is pretty rough. You can make it work with custom cell renderers and responsive column definitions, but you're fighting the library's desktop-first assumptions.

Where AG Grid shines is when you have power users who need to manipulate large datasets. The Excel-like filtering and sorting is incredibly powerful. I used it for an admin dashboard where users needed to export filtered data to CSV - that worked beautifully.

Bundle size is the elephant in the room. The community version adds ~150KB gzipped to your bundle. Enterprise is even larger. For mobile-first apps, that's a tough sell unless you really need those features.

React Data Grid: The Modern Middle Ground

React Data Grid from Adazzle (formerly known as react-data-grid) hit a sweet spot for me recently. It's less opinionated than AG Grid but more batteries-included than TanStack Table.

The built-in row selection, inline editing, and column resizing work out of the box. No configuration hell. The frozen columns feature is genuinely useful when you need to keep an identifier visible while scrolling horizontally.

Performance is solid up to about 5k rows without virtualization. Beyond that, you'll want to implement pagination or infinite scroll. The library uses CSS Grid internally which makes the rendering pretty snappy.

Mobile support is decent but not amazing. The touch interactions work, but you'll need custom CSS to make it truly mobile-friendly. I ended up hiding certain columns on mobile and adding a details modal for the full data.

Material React Table: When You Need MUI Integration

If you're already using Material-UI, Material React Table (MRT) is worth considering. It's built on top of TanStack Table but adds MUI components and a bunch of features out of the box.

MRT gives you a ton of features with minimal config: global search, column filters, density toggle, fullscreen mode. The MUI integration means everything looks consistent with your existing design system.

The downside? Bundle size is hefty since you're pulling in both TanStack Table and MUI components. I measured around 200KB gzipped for a basic table. That's a lot for mobile users on slow connections.

The mobile story here depends entirely on how well MUI's responsive components work for your use case. The built-in density toggle helps - switching to compact mode makes tables more usable on smaller screens.

For mobile-first apps, I default to TanStack Table. The headless approach lets me build exactly what I need without fighting against desktop-centric defaults. Yeah, it takes longer to set up initially, but the flexibility is worth it when you need to switch between table and card layouts.

For admin dashboards or internal tools where users are on desktop, AG Grid is hard to beat if budget allows for the enterprise license. The feature set is unmatched.

React Data Grid hits a nice balance for projects that need something quick but customizable. I used it for a recent project where we needed inline editing and it saved days of development time.

Material React Table makes sense if you're already deep in the MUI ecosystem and need tables that match your existing design system. Just watch that bundle size.

The real trick is matching the library to your actual requirements. Don't reach for AG Grid if you just need to display 50 rows with basic sorting. And don't torture yourself with a fully custom TanStack implementation if React Data Grid gives you 90% of what you need out of the box.

Jordan Kim

Software Engineering Intern
Emma, we are a community of smart, driven people

Jiga: Full Stack Product Engineer
Jiga

Junior Software Developer Full Stack
KOHO

Full Stack Product Engineer
Not specified

Proxify AB: Senior Fullstack Developer (React.js & Node.js)
Proxify AB

Cloud Full Stack Python Software Engineer US
Railroad19, Inc.

Senior Frontend Engineer
Arize AI is rapidly transforming the world

Full Stack Engineer Contacts
Not specified

React Native Security: CVE-2025-66478 Explained

Framer Motion vs Motion One: Mobile Animation Performance in 2025

React Table Libraries: Mobile-First Performance Guide

Jordan Kim

Software Engineering InternEmma, we are a community of smart, driven people

Jiga: Full Stack Product EngineerJiga

Junior Software Developer Full StackKOHO

Full Stack Product EngineerNot specified

Proxify AB: Senior Fullstack Developer (React.js & Node.js)Proxify AB

Cloud Full Stack Python Software Engineer USRailroad19, Inc.

Senior Frontend EngineerArize AI is rapidly transforming the world

Full Stack Engineer ContactsNot specified

React Native Security: CVE-2025-66478 Explained

Framer Motion vs Motion One: Mobile Animation Performance in 2025

React Table Libraries: Mobile-First Performance Guide

Software Engineering Intern
Emma, we are a community of smart, driven people

Jiga: Full Stack Product Engineer
Jiga

Junior Software Developer Full Stack
KOHO

Full Stack Product Engineer
Not specified

Proxify AB: Senior Fullstack Developer (React.js & Node.js)
Proxify AB

Cloud Full Stack Python Software Engineer US
Railroad19, Inc.

Senior Frontend Engineer
Arize AI is rapidly transforming the world

Full Stack Engineer Contacts
Not specified