Mid-Level Frontend Engineer (React.js) - 4 Months - Remote - Octopus by RTG

About the Role We are looking for a Mid-Level Frontend Engineer with strong experience in building scalable, customer-facing web applications using React.js and Next.js . The ideal candidate has experience working on production applications, collaborating with cross-functional teams, and writing clean, maintainable, and performant code. Responsibilities Develop and maintain modern web applications using React.js and Next.js. Build responsive, reusable, and accessible UI components. Collaborate with designers, backend engineers, and product teams to deliver new features. Optimize application performance, Core Web Vitals, and user experience. Integrate REST APIs and GraphQL services. Implement state management solutions such as Redux Toolkit or TanStack Query. Participate in code reviews and maintain high code quality. Troubleshoot production issues and monitor application performance. Contribute to frontend architecture and reusable component libraries. Follow Agile development practices and participate in sprint planning. 3–5 years of frontend development experience. Strong experience with React.js . Good experience with Next.js . Strong knowledge of JavaScript (ES6+) and TypeScript. Solid understanding of HTML5, CSS3, and responsive design. Experience with Tailwind CSS or Bootstrap. Experience consuming REST APIs and/or GraphQL. Familiarity with state management using Redux Toolkit, Redux, or TanStack Query. Experience using Git. Understanding of frontend architecture and reusable component design. Good problem-solving and debugging skills. Very Good English communication skills. Tech Stack React.js Next.js JavaScript (ES6+) TypeScript HTML5 CSS3 Tailwind CSS Redux Toolkit TanStack Query REST APIs GraphQL Git Jest React Testing Library Docker AWS (nice to have) Sentry CI/CD