Open to opportunities

koushik User

@koushikuser1

Message

I build high-throughput web and mobile platforms with real-time collaboration, billing automation, and secure RBAC.

India

Message

What I'm looking for

I'm looking to own end-to-end web or mobile features, from API design through CI/CD release, on cross-functional teams building scalable real-time products.

I've built billing, payment, and security systems at Ocean Friends, including a configurable schema billing engine that reduced manual invoice turnaround by 40% and a custom RBAC framework for granular authorization. I also overhauled web and mobile billing architecture to reduce transaction failures and optimize load latency.

Previously, I developed MERN accounting workflows for Adobe through TEKsystems, integrating data across five product lines and automating high-volume reporting. My work spans React, Node.js, TypeScript, Golang, WebSockets, WebRTC, React Native, AWS, and real-time commerce and onboarding products.

Experience

Work history, roles, and key accomplishments

Senior Full-Stack Developer

Ocean Friends

Mar 2025 - Jul 2026 (1 year 4 months)

Architected a configurable schema billing engine, reducing manual turnaround time by 40%. Overhauled billing and payment architecture, and designed a custom RBAC security framework.

React TypeScript RBAC WebSockets WebRTC Billing Systems