Open to opportunities

Himanshu Kumar

@himanshukumar13

Message

I build low-latency backend systems, real-time products, and AI retrieval applications.

India

Message

What I'm looking for

I'm looking to build scalable, data-intensive backend and AI products where I can own systems end-to-end, solve real-time reliability challenges, and work closely with users to turn operational problems into production-ready features.

I build and own backend systems for real-time products, including a Cricket DRS platform at Elclassico Sportstech used during live Legends League Cricket matches. I rebuilt the system within a month while keeping the original operational, reducing average API latency from roughly three seconds to under 20ms.

I've built observability and deployment foundations with Grafana, Prometheus, Loki, Tempo, Docker, AWS, and GitHub Actions. I also provide real-time on-call support during live matches, resolve infrastructure bottlenecks before production impact, and handled a payment-gateway carding incident directly with the provider.

At EasyInsights, I improved application performance with RabbitMQ and Celery, built workspace permissions and an internal admin application that reduced support ticket time by about 70%, and strengthened reliability through testing, monitoring, and troubleshooting.

I also build end-to-end products and AI applications, from the Vrin B2B food supply-chain platform to AskPy, a code-first Python Q&A system using hybrid retrieval, reranking, fine-tuned models, evaluation gates, caching, and distributed tracing.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer

Current

Elclassico Sportstech Pvt Ltd.

Oct 2025 - Present (10 months)

Built and owned end-to-end backend for a real-time Cricket DRS system used during live professional matches, reducing API latency from ~3 seconds to under 20ms. Self-hosted observability stack and provided on-call support during live matches.

Python SSE Flask PostgreSQL AWS S3 Lambda Redis GitHub Actions Grafana Prometheus Loki Tempo Docker

Full Stack Engineer

EasyInsights Pvt Ltd.

Sep 2022 - Sep 2025 (3 years)

Boosted application performance by offloading event tasks using RabbitMQ and Celery. Implemented team ownership and permissions, built an internal admin app cutting support ticket time by ~70%, and wrote tests for reliability.

Python fastAPI Django PostgreSQL Redis Celery RabbitMQ Bitbucket Pipelines

Frontend Developer Intern

EasyInsights Pvt Ltd.

Jun 2022 - Aug 2022 (2 months)

Partnered with the lead designer to take a wireframe from conception to implementation. Worked closely with senior developers to troubleshoot and fix issues.