Senior Java Developer with Spring Boot & AWS Expertise

Sai Kumar G Java Developer

Columbus, OH – USA

I +1-940-***-**** • # ************.**********@*****.*** Professional Summary

Java Developer with 5+ years of experience building full-stack applications across SDLC in large corporate environments. Strong in Java, Spring Boot, AWS, and React to design, develop, test, and support reliable systems in production. Experienced with CI/CD, resiliency, and security practices to improve operational stability and release quality. Comfortable debugging complex issues, optimizing performance, and collaborating in Agile teams to deliver business outcomes. Skills

Programming Languages: Java, SQL, TypeScript, JavaScript, Python, HTML/CSS Frameworks & APIs: Spring Boot, Spring MVC, RESTful APIs, Microservices, React, Angular, Node.js Cloud & DevOps: AWS (EC2, S3, Lambda), CI/CD, Jenkins, Docker, Kubernetes, Git, SonarQube Databases: PostgreSQL, Oracle, Relational Schema Design, Indexing, Query Optimization Engineering Practices: SDLC, Agile, Unit/Integration Testing, Debugging, Application Resiliency, Security Professional Experience

UnitedHealthCare Columbus, OH

Software Engineer Jul 2023 – Present

Build Java and Spring Boot microservices delivering secure workflows, integrations, and reliable business capabilities.

Develop React UI features with reusable components, responsive layouts, and consistent patterns for user experiences.

Design RESTful APIs with validation, versioning, and clear contracts to support cross-team integrations at scale.

Implement AWS deployments using EC2, S3, and Lambda patterns, improving scalability and operational stability.

Strengthen resiliency with timeouts, retries, circuit breakers, and graceful degradation for critical services.

Improve performance via SQL query tuning, indexing strategies, caching, and profiling for latency reductions.

Write unit and integration tests, increasing coverage and supporting TDD-style development for safer releases.

Automate builds and deployments with Git and CI/CD pipelines, enforcing quality gates and security scans.

Troubleshoot production incidents end-to-end, performing RCA and delivering durable fixes with documentation. Capital One

Software Engineer Jul 2019 – Jul 2022

Developed Java applications in a large corporate environment, following SDLC and Agile delivery practices.

Built Spring Boot services and REST APIs integrating databases and downstream systems for enterprise workflows.

Implemented React and Angular UI modules with state management, performance optimizations, and accessibility patterns.

Deployed services on AWS using infrastructure patterns, monitoring, and operational controls for stability.

Debugged complex issues across services, logs, and data, resolving defects and preventing regressions.

Created SQL queries and reporting views, optimizing queries and ensuring data accuracy for business consumers.

Applied CI/CD practices with automated testing, code quality tools, and controlled release strategies.

Implemented security best practices for authentication, authorization, and safe data handling in applications.

Supported operational stability with runbooks, alerting, and on-call collaboration to restore service quickly. Project

Built a Java Spring Boot and React application with AWS deployments, CI/CD pipelines, and automated tests.

Implemented resiliency patterns, monitoring, and security controls to improve stability and reduce incident noise.

Designed SQL-backed APIs with optimized queries and caching to meet performance and scalability requirements. Education

M.S., Data Science — University of North Texas (2022–2024)

Contact this candidate