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I am a Senior Java Full Stack Developer with 10+ years of experience leading enterprise application modernization using Java, Spring Boot, and scalable microservices across regulated industries. I architect high-performance backends with Spring, Hibernate/JPA, and Oracle integrations, and design event-driven systems using Kafka for reliable asynchronous processing. I deliver full-stack solutions, integrating Java Spring Boot backends with Angular front-ends, secure APIs with OAuth2 and Spring Security, and robust CI/CD pipelines using Jenkins, Docker, and Kubernetes. I collaborate closely with product and QA teams in Agile/Scrum environments to modernize legacy systems and improve reliability, scalability, and security across cloud deployments.…I am a Senior Java Full Stack Developer with 10+ years of experience leading enterprise application modernization using Java, Spring Boot, and scalable microservices across regulated industries. I architect high-performance backends with Spring, Hibernate/JPA, and Oracle integrations, and design event-driven systems using Kafka for reliable asynchronous processing. I deliver full-stack solutions, integrating Java Spring Boot backends with Angular front-ends, secure APIs with OAuth2 and Spring Security, and robust CI/CD pipelines using Jenkins, Docker, and Kubernetes. I collaborate closely with product and QA teams in Agile/Scrum environments to modernize legacy systems and improve reliability, scalability, and security across cloud deployments.

NAVEEN KUMAR

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I am a Senior Java Full Stack Developer with 10+ years of experience leading enterprise application modernization using Java, Spring Boot, and scalable microservices across regulated industries. I architect high-performance backends with Spring, Hibernate/JPA, and Oracle integrations, and design event-driven systems using Kafka for reliable asynchronous processing. I deliver full-stack solutions, integrating Java Spring Boot backends with Angular front-ends, secure APIs with OAuth2 and Spring Security, and robust CI/CD pipelines using Jenkins, Docker, and Kubernetes. I collaborate closely with product and QA teams in Agile/Scrum environments to modernize legacy systems and improve reliability, scalability, and security across cloud deployments.…I am a Senior Java Full Stack Developer with 10+ years of experience leading enterprise application modernization using Java, Spring Boot, and scalable microservices across regulated industries. I architect high-performance backends with Spring, Hibernate/JPA, and Oracle integrations, and design event-driven systems using Kafka for reliable asynchronous processing. I deliver full-stack solutions, integrating Java Spring Boot backends with Angular front-ends, secure APIs with OAuth2 and Spring Security, and robust CI/CD pipelines using Jenkins, Docker, and Kubernetes. I collaborate closely with product and QA teams in Agile/Scrum environments to modernize legacy systems and improve reliability, scalability, and security across cloud deployments.

Available to hire

I am a Senior Java Full Stack Developer with 10+ years of experience leading enterprise application modernization using Java, Spring Boot, and scalable microservices across regulated industries. I architect high-performance backends with Spring, Hibernate/JPA, and Oracle integrations, and design event-driven systems using Kafka for reliable asynchronous processing.

I deliver full-stack solutions, integrating Java Spring Boot backends with Angular front-ends, secure APIs with OAuth2 and Spring Security, and robust CI/CD pipelines using Jenkins, Docker, and Kubernetes. I collaborate closely with product and QA teams in Agile/Scrum environments to modernize legacy systems and improve reliability, scalability, and security across cloud deployments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Sr. Java Full Stack Developer at Optum Health

October 1, 2023 - Present

Led development of scalable backend services using Java 21, Spring Boot, and Hibernate/JPA; Architected event-driven microservices with Kafka; Designed Redis-based distributed caching to reduce latency; Developed and documented secure RESTful APIs using Spring Boot and OpenAPI; Governed full SDLC within Agile; Built accessible Angular front-ends; Optimized concurrency and memory usage for scalable enterprise services; Containerized with Docker and orchestrated with Kubernetes; Implemented security with Spring Security and OAuth2; Crafted efficient data access with Oracle and JPA; Established Jenkins-based CI/CD pipelines; Troubleshot production issues across Kafka, Redis, and services; Scaled deployments on AWS; Mentored team members and conducted code reviews; Refactored legacy modules into modular microservices for faster deployments.

Java Developer at T-Mobile

August 1, 2021 - September 1, 2023

Developed backend services using Java 17, Spring Boot, and Hibernate/JPA; Built RESTful APIs enabling seamless integration with Angular front-ends; Implemented Kafka for asynchronous processing across distributed telecom platforms; Added Redis caching to improve API response times; Designed and optimized Oracle schemas; Participated in OpenAPI documentation and API governance; Collaborated in Agile/Scrum with QA and analysts; Refactored legacy services into modular Spring Boot components; Supported containerization with Docker and Kubernetes; Implemented Spring Security and OAuth2-based access control; Contributed to CI/CD pipelines with Jenkins; Ensured cloud deployments on AWS with scalable, reliable releases.

Java Developer at Deutsche Bank

November 1, 2019 - July 1, 2021

Developed backend services for financial risk and trading platforms using Java 11 and Spring Boot; Exposed secure RESTful APIs for internal trading systems; Used Hibernate/JPA for complex data models and enhanced persistence performance; Implemented real-time Kafka streams for trade processing; Integrated Redis caching for reference data to speed up API responses; Optimized Oracle queries and indexing for large-scale reporting datasets; Collaborated with frontend teams to integrate Angular components; Documented APIs with OpenAPI/Swagger; Participated in Agile ceremonies; Conducted CI/CD with Jenkins and containerized apps with Docker/Kubernetes; Leveraged AWS for scalable deployments.

Java Developer at Best Buy

November 1, 2019 - July 1, 2021

Developed backend services using Java 11 and Spring Boot to support high-traffic retail order and catalog systems; Exposed RESTful APIs for integration with Angular front-ends; Used Kafka for real-time event streaming and processing; Implemented Redis caching to reduce database calls during peak sale events; Optimized Oracle data models and SQL queries for inventory and ordering modules; Documented APIs with OpenAPI; Collaborated in Agile/Scrum and performed code reviews; Implemented Docker/Kubernetes-based deployments and CI/CD with Jenkins; Ensured secure access with Spring Security and OAuth2; Participated in performance tuning and production issue resolution.

Java Developer at Analog Devices

June 1, 2017 - October 1, 2019

Developed scalable backend services using Java 8/11 and Spring Boot; Designed and consumed RESTful APIs; Implemented Kafka-based event streaming for real-time data processing; Integrated Redis caching for frequently accessed data; Optimized Oracle schemas and queries; Built responsive Angular front-ends with TypeScript; Documented APIs via OpenAPI; Performed code reviews and collaborated in Agile environments; Conducted performance tuning and troubleshooting of distributed systems; Assisted in production deployments using Docker/Kubernetes and CI/CD pipelines; Worked with Jira and Maven in a cloud-focused setup.

Java Developer at Analog Devices

February 1, 2014 - May 1, 2017

Contributed to enterprise-grade analytics and manufacturing tooling using Java/Java EE and Spring MVC; Delivered RESTful and SOAP integrations; Managed PostgreSQL schemas, triggers, and stored procedures for production reporting; Implemented RBAC with Spring Security to protect sensitive engineering data; Automated reporting with SSRS and Jasper; Built reusable utilities and framework components to standardize workflows; Delivered JSP/JSTL-based front-ends and ensured accessibility; Participated in Agile/Scrum processes, conducted load testing with JMeter, and supported production deployments with Maven, Jenkins, and Docker.