Senior React.js Frontend Engineer

About Proxify
At Proxify, a Swedish tech company, we connect talented tech professionals with long-term remote opportunities at top companies across the USA, Sweden, Germany, the Netherlands, and beyond.
Since 2018, we’ve helped 5,000+ developers land remote roles with 1,200+ companies worldwide.
Role overview
We are looking for Senior Software Engineers with strong React experience to join our fast-growing Network. You will play a key role in building modern web applications, collaborating with cross-functional teams, and helping shape the future of user experiences across various platforms.
Important: You must be based in any country in EMEA to be considered for this position.
Key responsibilities
Build and develop modern, high-performance web applications using React and the latest frontend technologies.
Create fast, responsive, and user-friendly interfaces that work seamlessly across all devices.
Design reusable components and help shape the frontend architecture.
Write clean, maintainable, and well-tested code following best practices.
Identify and fix bugs while continuously improving the user experience.
Work closely with designers, product managers, and backend developers to bring ideas to life.
Must-have
5+ years of demonstrable, production-level experience architecting and developing applications with React.js and its surrounding ecosystem of libraries and tools
Deep knowledge of JavaScript (ES6+), HTML5, CSS3, and modern CSS-in-JS or preprocessor solutions
Experience with state management libraries (e.g., Redux, Zustand, Recoil) and understanding of their trade-offs
Familiarity with modern build tools like Webpack, Vite, or equivalent
Strong understanding of RESTful APIs, asynchronous operations, and frontend-backend integration
Experience with unit and integration testing (e.g., Jest, React Testing Library)
Good English communication skills and the ability to work in an agile environment
Nice-to-have
Experience with backend technologies, databases, cloud services, and any tech stack beyond JavaScript
Familiarity with server-side rendering frameworks like Next.js or similar
Hands-on experience with TypeScript and building modular, reusable components using design systems, component libraries, and scalable UI patterns
Understanding of CI/CD pipelines and deployment workflows
🌍 Why Join Proxify?
100% remote opportunities.
Work with top international companies.
Long-term engagements.
Flexible part-time or full-time setup.
Apply once → access multiple opportunities.
Skip traditional recruitment barriers through personalized matching.
Work from anywhere and access a truly global network.
👉 Interested? Apply and join our global network of technology professionals.

Work arrangement
Yes