Looking for a job

Shyam Sundar

@shyamsundar3

Message

I build high-throughput Java payment services processing over one million daily transactions.

Norway

Message

What I'm looking for

I'm looking to contribute to product growth in an international, cross-functional team, building scalable and reliable Java/Spring Boot services in fintech or enterprise environments.

I've built high-throughput financial payment processing services at Mastercard/Nets, handling over 1 million daily transactions using Java, Spring Boot, Hibernate, REST APIs, AWS, and ActiveMQ. I reduced production incidents by 20%+ through Resilience4J, Hystrix, proactive fault-tolerant design, and end-to-end performance monitoring with Dynatrace.

Previously, I developed microservices and documented OpenAPI contracts for Verizon's Trademore application, and contributed to enterprise forecasting software at Sysbiz Technologies. I bring 12+ years of backend development experience, a strong TDD and CI/CD culture, and practical experience delivering reliable services in Agile teams.

Experience

Work history, roles, and key accomplishments

Senior Backend Engineer

Mastercard/Nets (L&T Infotech)

Nov 2018 - Sep 2025 (6 years 10 months)

Designed and developed high-throughput backend services for financial payment processing pipelines handling over 1 million transactions daily, built on Java 11/17, Spring Boot, Hibernate, and RESTful APIs. Reduced production incidents by 20%+ through implementation of resilience patterns and proactive fault-tolerant service design.

Java Spring Boot Hibernate REST APIs AWS ActiveMQ Microservice Architecture Hystrix Flyway Docker Dynatrace Maven Jenkins Git Cucumber Scrum Kanban

Senior Software Engineer

Newt global Pvt Ltd

Feb 2017 - Nov 2018 (1 year 9 months)

Developed and maintained application named Trademore built using Spring boot, Spring and hibernate.
Provided technical expertise to influence decisions on application design and system architecture.
Gained experience working in Microservice architecture application.

Software Engineer

Sysbiz Technologies

Jul 2013 - Jan 2017 (3 years 6 months)

Gained experience in Spring, hibernate and Vaadin
Involved in design and business logic implementation of Forecasting module.
Worked on resolving complex design, application development and bugfixes.