Full Stack Developer - React.js/Node.js

About Role : The platform supports institutional research workflows for internal teams and clients on web and mobile. It is built with Next.js, React, React Native and TypeScript, backed by RESTAPIs on ASP.NET Core and PostgreSQL, and deployed on AWS. Responsibilities : - Build and maintain responsive web pages and components using React, Next.js and Tailwind CSS. - Work on internal admin / CMS screens for content and workflow management. - Learn React Native and contribute to the mobile app for iOS and Android under senior guidance. - Integrate frontend screens with RESTAPIs, including JWT-based authentication and error handling. - Write and debug SQL queries on PostgreSQL; pick up the C# / ASP.NET Core backend over time. - Debug issues using browser devtools, network logs and server logs, and escalate with a clear root-cause summary. - Use AI coding tools (Claude Code, Codex, Cursor or similar) daily to read code, build features and write tests, and review every AI-generated change. - Simplify and clean up existing code where it helps maintainability. - Take part in code reviews, sprint planning and documentation. Required qualifications : - Hands-on experience with JavaScript, HTML5, CSS3 and React.js, shown through internships, live projects or a portfolio. - Working knowledge of Next.js, Tailwind CSS and responsive, cross-browser design. - Understanding of RESTAPIs and JWT authentication; experience with Node.js / Express or any backend framework. - Basic SQL and relational database knowledge, preferably PostgreSQL. - Practical use of AI coding tools such as Claude Code, Codex, Cursor or ChatGPT, with the judgement to verify their output. - Comfort with Git / GitHub, Chrome DevTools, Postman and the command line. - Strong fundamentals in data structures, algorithms, OOP and DBMS. - Ability to learn new stacks quickly and work in an existing codebase. - Clear communication and willingness to ask questions and take feedback. Preferred qualifications : - Exposure to TypeScript. - Any experience with React Native, Expo or mobile app development. - Familiarity with C#, .NET or another statically typed backend language. - Experience deploying apps on Vercel, Netlify, Cloudflare or AWS; basic CI/CD knowledge. - Familiarity with MCP, agentic workflows, or building custom AI agents and skills. - Interest in financial services, capital markets or data-heavy applications.