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Naveen shaju

@naveenshaju

Senior Java Developer at IBS Software who re-architected a legacy payment platform into a Spring Boot and PostgreSQL system.

India

Message

At IBS Software, I led the re-architecture of a legacy Microsoft Navision payment platform into a cloud-native Spring Boot and PostgreSQL stack. I developed payment microservices and a GraphQL API that served as the primary system of record.

I built automated data migration services that achieved 98% parity across 1,000+ clients, and integrated 8+ microservices for end-to-end payment workflows. I also managed PostgreSQL schema design and Flyway versioning to support zero-downtime migrations.

Previously, at Allianz Technology, I led a migration from legacy Spring frameworks to Spring Boot and built service modules with Spring Security. Across my roles, I’ve worked on microservices, production support, performance tuning, and enterprise applications.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Developer

Current

IBS Software

Jan 2024 - Present (2 years 10 months)

Led the re-architecture of a legacy Microsoft Navision payment platform into a cloud-native Spring Boot/PostgreSQL stack. Developed core payment microservices and managed PostgreSQL schema design with Flyway.

Spring Boot PostgreSQL GraphQL Microservices Flyway Docker Kubernetes Kafka Event Driven Architecture Redis Java

Senior Software Developer

Allianz Technology

Mar 2023 - Nov 2024 (1 year 8 months)

Engineered insurance domain applications by leading migration from legacy Spring frameworks to modern Spring Boot. Built core service modules with Spring Security and optimized SQL query performance.

Spring Boot Spring Security SQL Performance Optimization Splunk Java Microservices

Software Engineer

Guidehouse

Sep 2021 - Mar 2023 (1 year 6 months)

Designed and delivered 5+ independently deployable microservices, improving system modularity and release flexibility. Translated complex client requirements into technical specifications and led feature rollouts.

Microservices Java Spring Boot Confluence Agile REST

Senior Process Associate

Tata Consultancy Services

Dec 2018 - Aug 2021 (2 years 8 months)

Contributed to system design reviews and developed Java modules based on functional specifications for enterprise clients. Provided production support and conducted root-cause analysis on critical bugs.

Java System Design Root Cause Analysis Documentation Cross functional Coordination