Senior React.js Developer | Remote Frontend Engineering Expert

We're seeking an experienced Senior React.js Developer to join our innovative team in building next-generation web applications. In this role, you'll leverage your advanced JavaScript expertise to develop sophisticated frontend solutions while collaborating with cross-functional teams in an agile environment. Your strong foundation in React, Redux, and modern CSS will enable you to create responsive, high-performance user interfaces for our cutting-edge products. As we continue to scale our operations, your technical leadership and frontend architecture skills will be instrumental in shaping our product's future. Key Responsibilities - Architect and develop robust frontend applications using React.js and modern JavaScript (ES6+). - Implement state management solutions utilizing Redux, Context API, and custom hooks. - Create responsive layouts using advanced CSS techniques — including Flexbox and CSS Grid. - Optimize application performance through efficient rendering and state management. - Configure and maintain build tools including Webpack and Babel for optimal deployment. - Participate actively in code reviews, providing constructive feedback to team members. - Collaborate in product and service architecture design decisions. - Work within an agile methodology, contributing to sprint planning and retrospectives. - Troubleshoot and debug complex frontend issues using modern profiling tools. - Design and implement reusable component libraries to ensure consistency across applications. - Mentor junior developers through pair programming and knowledge-sharing sessions. - Stay current with frontend development trends and propose adoption of beneficial new technologies. - Collaborate with UX/UI designers to implement pixel-perfect interfaces while maintaining code quality. Required Skills - 3-4+ years of professional JavaScript development experience with demonstrable expertise in ES6+ features — arrow functions, destructuring, promises, and async/await. - Strong understanding of JavaScript fundamentals including closures, execution context, prototypal inheritance, and 'this' binding. - Minimum 2 years of hands-on experience with React.js ecosystem... including Redux architecture patterns, hooks implementation, context API usage, custom middleware development, and Higher-Order Components design. - 4+ years of experience with CSS and modern layout techniques (Flexbox, CSS Grid) with the ability to create complex responsive layouts without frameworks. - Proficiency with styled-components or similar CSS-in-JS libraries, with a focus on creating maintainable styling systems. - Experience with Git version control and collaborative development workflows — feature branching, pull requests, and conflict resolution. - Demonstrable experience with debugging and performance profiling tools for JavaScript applications (Chrome DevTools and React Profiler). - Ability to write and optimize Webpack and Babel configurations from scratch to accommodate project-specific requirements. - Basic Docker knowledge including understanding of images, containers, volumes, networking, and common container operations. Nice to Have - Knowledge of Node.js for full-stack development capabilities. - Experience with TypeScript in production environments. - Familiarity with testing frameworks like Jest, React Testing Library, or Cypress. - Experience with GraphQL or REST API design and implementation. - Understanding of CI/CD pipelines and automated deployment processes. - Previous remote work experience and strong self-management skills. - Experience with microservices architecture. - Contributions to open-source projects or personal projects that showcase your skills. What We Offer Join our dynamic team and enjoy the flexibility of remote work with the option to occasionally visit our Moscow office. You'll have the opportunity to work on challenging projects, collaborate with talented professionals, and continuously expand your technical expertise in a supportive environment. We value innovation, quality code, and the continuous professional growth of our team members. We provide competitive compensation packages, flexible working hours to accommodate your optimal productivity times, and regular virtual team-building activities to foster strong connections — despite the remote nature of our work. Our flat organizational structure ensures your ideas are heard and valued, while our commitment to using cutting-edge technologies means you'll always be working with modern tools and frameworks. Professional development is encouraged through conference attendance, online course subscriptions, and dedicated learning time.