Bhargav Kumar Kommu

About Bhargav Kumar Kommu

I build production systems that don’t break under load or audits. Across finance (Citi)…

Experience

1. Full Stack Developer

   Citi

   Dec 2024 — Present · Jersey City, NJ, US

   Developed and deployed secure microservices using Java (8/11/17), Spring Boot, Spring Cloud, Hibernate, and Node.js, enabling compliant, high-volume banking transactions.Delivered event-driven messaging pipelines using Kafka Streams, Kafka Connect, JMS, RabbitMQ, and SQS/SNS, processing millions of daily payment events with 99.9% reliability.Designed and implemented RESTful and GraphQL APIs with OAuth2, JWT, TLS, RBAC, and SAML, ensuring regulatory-grade authentication and authorization.Deployed microservices on AWS (EKS, Lambda, CloudWatch, IAM) and Azure (AKS, App Services), ensuring 99.95% uptime for critical financial systems.Automated CI/CD pipelines with Jenkins, GitHub Actions, and Azure DevOps, accelerating release cycles by ~20% and improving deployment stability.Optimized data access across Oracle and PostgreSQL (primary stores); used MongoDB for document-centric features, Redis for caching, and Elasticsearch for search/analytics.Built responsive UIs with React.js, Angular, Redux Toolkit, TypeScript, and Bootstrap, enhancing trader dashboards and improving customer experience.Applied TDD/BDD practices with JUnit, Mockito, Selenium, Cucumber, REST Assured, and SonarQube, raising coverage above 85% and lowering production defects.Integrated monitoring and observability with Prometheus, Grafana, ELK, Sleuth, Zipkin, and Splunk, improving system reliability and enabling faster incident response.Engineered multithreaded services and batch jobs using Java Streams and Concurrency APIs, achieving near-linear scalability for high-volume workloads.Applied design patterns (MVC, DAO, Service Layer, Singleton, Adapter) to deliver modular, maintainable applications with reduced long-term overhead.Played a key role as senior developer during development of next-generation microservices used across global banking platforms.