Open to opportunities

Tanuj Sharma

@tanujsharma3

Message

I build high-throughput distributed backend systems for financial products at scale.

India

Message

What I'm looking for

I'm looking to build fault-tolerant, high-throughput distributed systems, particularly transactional backend platforms where I can own architecture, reliability, scalability, and system design.

At Vegapay, I architected an event-driven microservices platform from 0-to-1 for high-concurrency transaction processing, limits, and settlement. It scaled to 1M+ active users with 99.99% availability, 1000+ TPS peak throughput, and sub-150ms P99 latency.

I design resilient financial systems using Java Spring Boot, Kafka, PostgreSQL, AWS, Redis Redlock, idempotent consumers, dead-letter queues, and circuit breakers. I also write system design RFCs and API contracts to support strict latency and reliability targets.

Previously at BharatPe, I improved high-scale card products by optimizing database access paths and decoupling checkout flows with Kafka, reducing checkout failures by 45%.

At Grab, I built a concurrent Golang database diagnostic service that detected network partitions, failovers, and pool exhaustion across MySQL, PostgreSQL, and MSSQL, cutting developer MTTR by 80%.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Vegapay

Mar 2023 - Present (3 years 5 months)

Architected an event-driven microservices platform from 0-to-1 using Java Spring Boot, Kafka, and PostgreSQL on AWS, handling high-concurrency transaction processing, limits, and settlement. Scaled distributed infrastructure to 1M+ active users, maintaining 99.99% availability and benchmarking peak throughput of 1000+ TPS with sub-150ms P99 latency.