Senior React Developer

Altoros, an established provider of software development services, is looking for a Senior React Developer. Requirements: 5+ years of professional experience in front-end development Profound knowledge of JavaScript (ES6+) Strong experience with React.js Familiarity with other UI frameworks (Vue.js, Angular etc. — optional)and React-based frameworks such as Next.js (big plus) Experience with state management tools (Redux, Zustand, Recoil, etc.) Experience with modern build tools (Webpack, Vite) Solid understanding of HTML5, CSS3, W3C standards Experience with CSS-in-JS libraries and/or preprocessors (SASS, LESS, Styled Components) Experience designing scalable front-end application architectures Proficiency in using AI tools to enhance development workflow and reduce manual effort Experience writing unit and end-to-end tests Understanding of common design patterns and component-based architecture Excellent communication skills and ability to work in customer-facing environments English: B2+ / Upper-Intermediate+, comfortable with technical discussions and client interviews A big plus: experience in cross-platform mobile development (e.g., React Native) Responsibilities: Develop new user-facing features using React.js Build reusable components and front-end libraries for future use Write and maintain unit tests (Jest / Testing Library or similar) Leverage AI-powered tools (e.g., GitHub Copilot, ChatGPT) to boost productivity and automate repetitive development tasks such as test writing, code refactoring, or documentation Collaborate closely with UX/UI team to deliver the best possible customer experience, balancing business goals and technical constraints Produce internal documentation to support maintainability and onboarding Participate in sales/estimation process as a technical specialist Attend meetings with potential and current customers, as needed Join Altoros Team! Requirements About the company