11/04/2026 updated
100 % available
Remote Full-Stack Engineer | React, Next.js, Node.js, Java | Freelance & Contract
Bengaluru, India
Worldwide
Bachelor of Engineering, Computer ScienceNode.jsNext.jsReact.jsCloud TechnologiesBackendFull Stack DevelopmentGraphQLReact NativeFront End Software DevelopmentNestJS
Frontend Development
Expertise in React, Next.js, TypeScript, JavaScript, React Native, HTML5, CSS3, Tailwind CSS, Redux, SSR/CSR and Accessibility for building responsive web and mobile applications.
Backend & Data Engineering
Proficiency in Node.js, NestJS, Express.js, Java, Spring Boot, REST APIs, GraphQL, PostgreSQL, Redis, MongoDB, Prisma and Hibernate for building scalable server-side solutions.
AI & Cloud Technologies
Hands-on experience with LangChain, LangGraph, FastMCP, MCP, A2A, RAG, pgvector, Vertex AI, AWS, GCP, Docker, Vercel and GitHub Actions for AI-powered and cloud-deployed products.
Testing & Quality Assurance
Knowledge of Jest, React Testing Library, Playwright and CI/CD pipelines to ensure high-quality, maintainable software delivery.
Authentication & Security
Experience implementing OAuth 2.0, OpenID Connect, JWT, API key and mTLS authentication flows in full-stack applications.
Agile & DevOps Practices
Familiarity with Agile methodologies, Git version control, Splunk, Grafana and CI/CD release delivery for efficient team collaboration and deployment.
CMS & Content Tools
Experience with Sanity CMS and GROQ for building full-stack content tools and Node.js BFF endpoints supporting content-led changes.
Agentic & RAG Platforms
Architecture and delivery of agentic testing intelligence frameworks using LangChain, LangGraph, FastMCP, A2A, PostgreSQL and pgvector for large-scale test reasoning and feature discovery.
Expertise in React, Next.js, TypeScript, JavaScript, React Native, HTML5, CSS3, Tailwind CSS, Redux, SSR/CSR and Accessibility for building responsive web and mobile applications.
Backend & Data Engineering
Proficiency in Node.js, NestJS, Express.js, Java, Spring Boot, REST APIs, GraphQL, PostgreSQL, Redis, MongoDB, Prisma and Hibernate for building scalable server-side solutions.
AI & Cloud Technologies
Hands-on experience with LangChain, LangGraph, FastMCP, MCP, A2A, RAG, pgvector, Vertex AI, AWS, GCP, Docker, Vercel and GitHub Actions for AI-powered and cloud-deployed products.
Testing & Quality Assurance
Knowledge of Jest, React Testing Library, Playwright and CI/CD pipelines to ensure high-quality, maintainable software delivery.
Authentication & Security
Experience implementing OAuth 2.0, OpenID Connect, JWT, API key and mTLS authentication flows in full-stack applications.
Agile & DevOps Practices
Familiarity with Agile methodologies, Git version control, Splunk, Grafana and CI/CD release delivery for efficient team collaboration and deployment.
CMS & Content Tools
Experience with Sanity CMS and GROQ for building full-stack content tools and Node.js BFF endpoints supporting content-led changes.
Agentic & RAG Platforms
Architecture and delivery of agentic testing intelligence frameworks using LangChain, LangGraph, FastMCP, A2A, PostgreSQL and pgvector for large-scale test reasoning and feature discovery.
Experience
Professional experience5 - 10 years
Freelancer since2024
Languages
EnglishNative speaker
Project history
Developing data-intensive interactive internal tools for data loading, validation and syndication workflows using React, Next.js, JavaScript, HTML/CSS and Java-backed services.
Agentic Testing Intelligence Framework: Architected a LangChain, LangGraph, FastMCP, MCP, A2A, PostgreSQL and pgvector platform for test reasoning, onboarding and feature discovery; scoped for 3,000+ test suites/flows and 10,000+ test cases, reducing regression-workflow intervention by 80%. Kaniskart E-Commerce & CMS: Built a Next.js App Router storefront and CMS with TypeScript, Tailwind CSS, payments, RBAC and OTP/email flows; implemented Java/Spring Boot, PostgreSQL and Redis services with AWS infrastructure, then evolved the backend using NestJS, Express.js and Prisma. Auth Academy: Developed interactive OAuth 2.0, JWT, API key and mTLS learning simulations with TanStack Start, React, Drizzle ORM, PostgreSQL and Firebase, including real-time sandboxes and progress tracking.
Built a full-stack testing intelligence platform with Next.js, Node.js, TypeScript, Python, LangChain and LangGraph; developed approval workflows adopted by 20+ developers and 5 product managers. Built RAG-based onboarding and feature-discovery workflows that reduced engineering ramp-up by approximately two person-days, and delivered a geographic data-driven Store Locator feature.