Sameer Kumar
Senior Backend Engineer
Experienced in distributed systems, reliability engineering, cloud migrations, observability, and building backend infrastructure that scales. I build systems that survive production and tools that help engineers when things go wrong.
Key Achievements
Scaled enterprise systems 6×
Designed and executed infrastructure migrations that grew throughput 6× while maintaining SLA guarantees — from monolith to microservices at production scale.
Improved availability 99.9% → 99.99%
Led reliability engineering initiatives that moved platform availability from three-nines to four-nines, reducing annual downtime from 8.7h to under 53 minutes.
Led cloud migrations
End-to-end ownership of on-prem to cloud migrations for critical backend services — zero-downtime strategy, traffic cutover, and observability setup.
Built critical backend systems
Designed and shipped high-traffic APIs, event-driven pipelines, and data-intensive services handling millions of events per day across distributed teams.
Skills & Technologies
About this project
Incident Copilot was built to demonstrate senior-level full-stack engineering maturity with a focus on real SRE problems. The stack — Next.js 15 App Router, TypeScript strict mode, Tailwind CSS, Zod, and a cleanly abstracted mock AI service — is designed to be replaced with a real OpenAI backend with minimal changes.
The mock service returns pattern-matched responses for Kafka, database, memory leak, and payment failure scenarios — all realistic enough to show what the product does, without needing live API keys.