Open to opportunities

Lalit kumar

@lalitkumar5

Message

Full-stack engineer building scalable backend systems and AI-powered features with Node.js, TypeScript, and React.

India

Message

What I'm looking for

I’m looking to build AI-native travel experiences with independent ownership—shipping backend-first features, integrating LLM-based capabilities, and owning design-to-deployment with solid monitoring in production.

I’ve built 50+ production applications end-to-end, from architecture to deployment, using Node.js, Express.js, and TypeScript—designing REST APIs, tuning MongoDB/MySQL/PostgreSQL, and implementing JWT authentication and async/event-driven processing.

On the product side, I’ve integrated LLM APIs (OpenAI, Anthropic) into React + Node.js apps for NLP and automated content generation, shipped features with Docker and CI/CD, and delivered async high-throughput pipelines and real-time notification services.

Experience

Work history, roles, and key accomplishments

Current

Web & Software Developer (Freelance)

Current

Self-Employed

Jan 2021 - Present (5 years 6 months)

Designed and built scalable backend services and REST APIs using Node.js, Express.js, and TypeScript for 50+ client projects across travel, e-commerce, and SaaS domains. Developed AI-powered features integrating LLM APIs into React and Node.js applications.

Node.Js Development TypeScript REST APIs MongoDB MySQL PostgreSQL Docker CI CD OpenAI React

Web Developer Intern

Systemic Altruism

Jan 2024 - Dec 2024 (11 months)

Built full-stack features using MERN/MEVN stack, engineering RESTful APIs, responsive UI, and database integration supporting 10,000+ requests. Partnered with cross-functional teams across 10 Agile sprints to deploy production-ready web solutions.

MERN REST APIs MongoDB React Vue.Js Agile Performance Optimization