Technical Specialist-App Development

Area(s) of responsibility

We are looking for a highly skilled Senior Full-Stack Developer with exceptional expertise in React and modern frontend technologies, paired with solid backend experience in Java Spring Boot. The ideal candidate is passionate about building high-performance, scalable web applications and delivering seamless user experiences.

Key Responsibilities

• Design, develop, and maintain complex, responsive UI components using React.js, Redux, and modern JavaScript (ES6+)
• Lead frontend architecture decisions including state management, component design patterns, and performance optimization
• Integrate frontend applications with RESTful and GraphQL APIs built on Java Spring Boot
• Develop and maintain Java Spring Boot microservices and backend APIs
• Collaborate with UX/UI designers to translate wireframes and prototypes into pixel-perfect, accessible interfaces
• Conduct code reviews and mentor junior developers on frontend best practices
• Write unit and integration tests using Jest, React Testing Library, and JUnit
• Optimize application performance, load times, and cross-browser compatibility
• Participate in Agile ceremonies (sprint planning, standups, retrospectives)

Required Skills & Experience

Frontend

• 5+ years of hands-on experience with React.js (hooks, context API, functional components)
• Expert-level proficiency in JavaScript / TypeScript
• Strong knowledge of Redux / Redux Toolkit or equivalent state management (Zustand, Recoil)
• Deep understanding of HTML5, CSS3, SASS/SCSS, and responsive design principles
• Experience with REST API and GraphQL integration from the frontend
• Proficiency with frontend build tools: Webpack, Vite, Babel
• Familiarity with React Router, lazy loading, and code splitting
• Strong understanding of browser performance optimization and Core Web Vitals
• Experience with testing frameworks: Jest, React Testing Library, Cypress

Backend

• Solid experience with Java (8+) and Spring Boot framework
• Knowledge of Spring Security, Spring Data JPA, Hibernate
• Experience building and consuming RESTful APIs
• Familiarity with SQL databases (PostgreSQL, MySQL, MS SQL Server)
• Understanding of microservices architecture and API design patterns

Skills with M/O flag are part of Specialization