Gajendra Singh

I’m a Fullstack Engineer with 6+ years designing, developing, and deploying scalable web, mobile, and cloud-based applications. I build end-to-end solutions with React.js, Next.js, Node.js, NestJS, JavaScript (ES6+), TypeScript, and Python, with a strong focus on performance, scalability, and security.

I’ve developed responsive, high-performance user experiences and enterprise content management systems using Sitecore and Contentful. In production, I leverage AWS for cloud-native and serverless architectures with EC2, S3, Lambda, CloudFront, IAM, SQS, and SNS—so apps stay reliable, secure, and fast.

On the backend, I engineer RESTful APIs, microservices, and database-optimized services with Express.js, NestJS, MongoDB, PostgreSQL, and SQL. I also integrate Generative AI and agentic capabilities into real workflows using OpenAI GPT, Google Gemini, LangChain, LangGraph, and CrewAI—delivering features like chatbots, RAG, semantic search, summarization, and intelligent automation.

Across roles and projects, I ship production-ready products by combining clean engineering with strong delivery practices: Git, Docker, CI/CD, Agile/Scrum, peer reviews, Jest, and Cypress. I enjoy collaborating across Product, UI/UX, QA, and DevOps to turn complex requirements into secure, maintainable software.