Open to opportunities

Disha Sune

@dishasune

Message

Backend engineer building high-throughput payment microservices with Spring Boot, Kafka, and AWS.

India

Message

What I'm looking for

I’m looking to build scalable backend and microservices for high-volume systems, improving throughput and reliability. I want ownership of secure APIs, event-driven pipelines, cloud-native deployments, and CI/CD that enables frequent zero-risk releases.

I’m a Java Backend Engineer with 3.9+ years at Fiserv, building microservices-based financial payment systems that process millions of transactions daily for 600+ enterprise clients. I focus on performance, reliability, and scalable architecture—delivering a 25% throughput boost and a 40% reduction in DB latency.

Across my work, I design event-driven Kafka pipelines, implement secure authentication (OAuth2 + JWT) with PCI-DSS compliance, and containerize services with Docker and Kubernetes to maintain 99.9% uptime SLAs. I also lead risk-conscious migrations—driving a zero-downtime monolith-to-microservices transition—and keep quality high with JUnit + Mockito (85% coverage) and CI/CD automation.

Experience

Work history, roles, and key accomplishments

Current

Java Backend Engineer

Current

Fiserv

Jul 2022 - Present (3 years 11 months)

Architected 12+ Spring Boot microservices for high-volume payment processing, improving throughput by 25% using event-driven Kafka pipelines. Reduced DB latency by 40% with SQL optimization and Redis caching, and led a zero-downtime Play Framework monolith migration to microservices while maintaining 99.9% uptime.