Ujjawal Kumar

I'm a Software Engineer with 2+ years of experience building scalable backend systems and shipping production-ready products using Node.js, TypeScript, PostgreSQL, Redis, and modern cloud technologies.

I've worked in startup environments where I took ownership of backend development, built systems from the ground up, and collaborated closely with product requirements to turn ideas into working features. Previously, I was the sole backend engineer for a product serving 1,000+ users, where I built APIs, real-time chat infrastructure, AI-powered workflows, and asynchronous job-processing pipelines using BullMQ, Redis, and WebSockets.

Currently, I'm working at Creatiosoft on backend development for a real-time poker gaming platform. My experience also includes building AI-powered video generation products, payment and credit systems, background workers, caching layers, and performance-optimized APIs.

I enjoy working in fast-moving teams where engineers have ownership, move beyond just writing code, and contribute to product decisions. I'm particularly interested in remote opportunities with early-stage startups and product-focused teams where I can help build reliable systems, ship features quickly, and make a meaningful technical impact.

Core stack: Node.js, TypeScript, Nest.js, Express.js, PostgreSQL, Redis, BullMQ, Socket.IO, WebSockets, REST APIs, AI API integrations, AWS, and distributed systems.