u
uttamsingh108

Uttam Kumar

@uttamsingh108

Senior Node JS and NestJS Backend Engineer with 8 Years Experience

India
Hindi, Inglese
Alcune informazioni sono riportate in lingua inglese.
Chi sono
Senior Backend Engineer with 8 years building Node.js/NestJS APIs and event-driven microservices for fintech, logistics, IoT and SaaS platforms serving 10,000+ users. I build REST/GraphQL APIs, design RabbitMQ/Kafka pipelines, integrate Stripe/Razorpay (idempotent, webhook-reconciled, zero duplicate charges), harden auth with JWT/OAuth2, and set up CI/CD, Docker/Kubernetes deployments. Track record: cut API latency 25-40% across four systems, raised auth throughput 5x. I work in remote, cross-timezone teams using Claude Code/Cursor to move fast without cutting review quality.... Continua a leggere

Competenze

u
uttamsingh108
Uttam Kumar
offline • 

Consulta i miei servizi

API e integrazioni
I will backend expert node js nest js typescript javascript mongodb mysql
A partire da50 USD / progettoMaggiori dettagli
Applicazioni web full stack
I will be your node js developer for web application development
A partire da20 USD / progettoMaggiori dettagli

Portfolio

Esperienza lavorativa

NeoSOFT

Senior Backend Engineer

NeoSOFT • Freelance

Jun 2025 - Jul 2026 • 1 yr 1 mo

Architected and shipped a schema-metadata microservice (NestJS, gRPC, MongoDB) unifying schema management across 5 downstream teams, cutting new-integration time from ~180 days to 45 days. Embedded Claude Code and Cursor into the team's workflow, reducing average PR turnaround by 50% across a 20-person distributed team. Led cross-timezone design reviews, catching 20+ architectural issues before implementation.

Self-Employed

Freelance Backend Developer

Self-Employed • Lavoratore autonomo

Dec 2024 - May 2025 • 5 mos

Independently sourced and delivered a Node.js/NestJS backend project with zero missed deadlines. Shipped a REST API integration for an industrial IoT door-monitoring platform (Botevo) in a fixed 3-week window, including hardware-event ingestion and status reporting.

Afternic

Senior Backend Engineer

Afternic • Full time

Sep 2024 - Jan 2025 • 4 mos

Hardened a shipment-processing platform handling roughly 200 daily orders by implementing JWT/OAuth2 auth, per-endpoint rate limiting, and gateway request validation. Closed several identified access-control gaps ahead of a compliance review.