Open to opportunities

Nimesh Singh

@nimeshsingh

I build reliable Java microservices and distributed fintech systems that improve throughput and customer-facing payment flows.

India

Message

What I'm looking for

I'm looking to build and scale reliable backend and distributed systems, with ownership of production services, performance, reliability, and customer-facing financial workflows.

At Zeta, I build card-issuance and payout services, migrate Spring Boot microservices from JDK 8 to JDK 21, and own incident investigations for critical distributed systems. I redesigned Temporal task-queue segregation to triple throughput from approximately 100 TPS to 300 TPS while eliminating noisy-neighbor failures.

I've also built Power BI visuals at MAQ Software and a MERN-based student feedback portal with automated reporting that reduced manual analysis time by approximately 80%. I enjoy solving systems problems across Java, Spring Boot, Kubernetes, Temporal, databases, and event-driven architectures.

Experience

Work history, roles, and key accomplishments

Current

Software Development Engineer – Backend

Current

Zeta (Directi)

Nov 2024 - Present (1 year 10 months)

Led migration of legacy Order Management System and Spring Boot microservices from JDK 8 to JDK 21, resolving dependency conflicts. Engineered secure REST APIs for card issuance and payout workflows, and resolved cross-tenant workflow contention in Temporal, tripling throughput.