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Ajay Kumar
Mid-Level Java Full-Stack Developer specializing in Financial Services and Healthcare IT
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About
Full-stack engineer with experience at Vanguard, PNC, and Humana building customer-facing investment/banking flows and internal ops tools using Angular/React/TypeScript with Spring Boot microservices. Strong in shipping time-sensitive changes safely via automated testing/CI (JUnit/Mockito, Jenkins, SonarQube) and in operating event-driven microservices with Kafka (idempotency, retries, correlation IDs). Improved internal tool adoption by responding to ops/support feedback with query optimization and clearer search results.
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Key Strengths
- End-to-end ownership of customer-facing web flows (UI + APIs)
- Rapid iteration via small, incremental releases and quick sprints
- Quality-focused delivery with automated testing and CI gates (JUnit/Mockito, Jenkins, SonarQube)
- Full-stack troubleshooting and validation (API-first testing in Postman, then UI integration)
- Microservices design for scalability (API gateway, OAuth2, independent deployability)
- Event-driven systems experience at scale (Kafka) with idempotency, retries, and correlation IDs
- User-driven internal tool improvements (performance tuning, better filters/UX clarity) leading to daily adoption
- Pragmatic prioritization under competing demands (production issues first, still shipping feature scope)
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