Happiest Minds Technologies
Website:
happiestminds.com
Job details:
Full Stack Developer (.NET + React + Claude)
Summary
Hands-on Full Stack Developer with experience in modernizing enterprise applications using .NET and React technologies, supported by Agentic AI-assisted development tools such as Copilot, Claude Code etc. Strong expertise in building scalable backend APIs, responsive React applications, and contributing to modernization initiatives for legacy monolithic systems.
Required Skills
- 5?9 years of experience in full stack application development using .NET and React
- Strong proficiency in C#, ASP.NET Core, Web APIs, Entity Framework, SQL Server, React.js, TypeScript, and JavaScript (ES6+)
- Experience with React ecosystem including Hooks, Context API, Redux/Zustand, React Router, and reusable component development
- Good understanding of frontend-backend integration and API consumption patterns
- Experience working on modernization of legacy enterprise applications
- Knowledge of microservices and API-driven architecture principles
- Experience building responsive UI applications using React and UI frameworks such as Material UI, Tailwind, or Bootstrap
- Exposure to frontend migration projects from legacy UI frameworks to React is a plus
- Experience using AI-assisted development tools such as GitHub Copilot, Claude Code, Cursor, or similar platforms
- Familiarity with Git, CI/CD pipelines, Agile/Scrum methodologies, and DevOps practices
- Understanding of authentication and security concepts such as JWT and OAuth
- Exposure to Azure/AWS cloud environments and Docker is an added advantage
Key Responsibilities
- Develop and maintain scalable backend services using ASP.NET Core and Web APIs
- Build modern, responsive, and reusable frontend applications using React and TypeScript
- Participate in modernization of legacy monolithic applications into API-first and microservices-based architecture
- Collaborate with architects and technical leads on migration from .NET Framework to .NET Core and React modernization
- Use Agentic AI tools to improve productivity in coding, refactoring, testing, and code analysis
- Design and integrate RESTful APIs with frontend applications
- Write clean, maintainable, and testable code following engineering best practices
- Participate in code reviews, debugging, performance optimization, and troubleshooting activities
- Contribute to CI/CD implementation, automated testing, and deployment processes
- Work closely with cross-functional teams including QA, DevOps, Product, and UX/UI teams in Agile delivery environments
- Net Core
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