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Nayan kunwar

@nayankunwar

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Backend engineer at Nexzem Technologies who built Stripe Connect integrations and event-driven backend services.

India

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At Nexzem Technologies, I developed backend services with Node.js, TypeScript, PostgreSQL, and Prisma, and implemented event-driven workflows using Apache Kafka and background workers. I also developed Stripe Connect integrations for onboarding, transfers, payouts, and webhooks.

On Shortly, I built a URL shortener and analytics platform with a click analytics pipeline, RabbitMQ workers, and real-time updates. I’m actively exploring and building Agentic AI systems using LangChain and LangGraph, with a focus on tool calling and workflow orchestration.

Experience

Work history, roles, and key accomplishments

Backend Developer

Nexzem Technologies

Dec 2025 - Jun 2026 (6 months)

Developed scalable backend services using Node.js, TypeScript, PostgreSQL, and Prisma. Implemented event-driven workflows with Apache Kafka and background workers, and built Redis caching and BullMQ-based job processing.

NodeJS TypeScript PostgreSQL Prisma Kafka Redis BullMQ Stripe Connect Webhooks API Design Database Schema Design Query Optimization

Technology Executive - Backend Developer

Pearl Organisation

Jul 2024 - Aug 2025 (1 year 1 month)

Built REST APIs using Node.js, Express.js, MongoDB, and PostgreSQL. Integrated AI-powered services with OpenAI and Google Gemini for summarization and content generation, and improved performance through indexing and caching.

NodeJS ExpressJS MongoDB PostgreSQL OpenAI Gemini Razorpay Cloudinary Nodemailer Indexing Caching Query Optimization

Backend Developer Intern

CodeJi Info Tech PVT LTD

Jun 2023 - Nov 2023 (5 months)

Developed a real-time chat application using Socket.io, Node.js, and MongoDB. Implemented JWT-based authentication and built APIs and middleware for messaging and user management.

Socket.IO NodeJS MongoDB JWT REST APIs Middleware