Open to opportunities

Koustav Chakraborty

@koustavchakraborty

I’m a Senior Java backend engineer delivering scalable microservices, Kafka-driven event systems, and financial-grade APIs.

India

Message

What I'm looking for

I'm seeking senior backend roles where I can architect scalable, event-driven systems, lead technical delivery, mentor engineers, and improve performance at enterprise or financial-services companies with strong CI/CD and engineering practices.

I’m a Senior Java backend engineer with almost seven years building high-performance enterprise systems for financial services and global payroll products.

I specialize in Spring Boot microservices and event-driven architectures using Kafka, and I optimize databases with Redis and SQL/NoSQL for low-latency operations. I’ve driven API performance improvements of 45% and lowered database load by 60% across production systems.

I lead technical delivery, mentor engineers, and champion clean code, CI/CD, and Agile practices to deliver secure, compliant, and scalable backend platforms.

Experience

Work history, roles, and key accomplishments

Current

Senior Consultant

Current

PwC India

Aug 2021 - Present (4 years 10 months)

Led backend development for enterprise platforms using Java, Spring Boot and microservices; designed event-driven architecture with Kafka that reduced API response times by 45% and integrated Redis caching to lower database load by 60%.

Java Spring Boot Microservices Apache Kafka Redis SQL MongoDB RBAC CI CD

Member Technical

ADP

Aug 2018 - Aug 2021 (3 years)

Developed secure payroll and retirement backend modules used in 120+ countries, built a REST-based Checklist Management System that reduced manual errors by 60% and refactored services to improve throughput by 75%.

Java Spring MVC Oracle MySQL MongoDB Jenkins Agile