Full Stack Java Engineer with 5+ Years Experience

Pushpaka M

Full Stack Java Developer

*+ years experience React Spring Boot AWS Microservices

Work Authorization: Green card holder

Open to relocation anywhere in the U.S.

Wylie, TX • ***********@*****.*** • LinkedIn: linkedin.com/in/pushpaka-m-603780109

PROFESSIONAL SUMMARY

5+ years of experience designing and delivering enterprise-grade full-stack applications in financial and retail domains.

Expert in Java, Spring Boot, and Microservices architecture for building scalable, resilient backend systems.

Proven ability to improve system performance, achieving up to 40% database optimization and sub-second API responses.

Strong experience developing secure REST APIs with OAuth2, JWT, RBAC, and compliance-ready logging.

Delivered AI-assisted features such as anomaly detection, fraud insights, and intelligent chatbots using Python and cloud AI services.

Hands-on with AWS cloud deployments, achieving 99.95% uptime and reducing infrastructure costs by 40%.

Frontend expertise in React.js with performance optimization, accessibility (WCAG), and reusable component design.

Advocate for clean architecture, CI/CD automation, and Agile collaboration across cross-functional teams.

TECHNICAL SKILLS

Languages: Java, Python, JavaScript, TypeScript

Frontend: React.js, Angular, Vue.js, HTML5, CSS3, Bootstrap, SASS

Backend: Spring Boot, Node.js, Express.js, Django, REST APIs, Microservices

Databases: PostgreSQL, MySQL, MongoDB, Redis, DynamoDB

Cloud & DevOps: AWS (EC2, S3, RDS, Lambda, IAM, CloudWatch), Azure, GCP, Docker,

Kubernetes, Jenkins, Terraform

Testing: JUnit, Mockito, Selenium, Cypress, Jest

Security: OAuth2, JWT, RBAC, API Gateway, Secure Logging

integrations

Tools: Git, Jira, Confluence, Postman, VS Code

Methodologies: Agile/Scrum, CI/CD, System Design, Observability

PROFESSIONAL EXPERIENCE

Fannie Mae — Full Stack Java Developer

Plano, TX Feb 2024 – Present

Developed high-volume financial applications using Spring Boot and React.js, improving transaction processing speed by 20%.

Reduced React page load times by 30% through lazy loading, memoization, and efficient state management.

Implemented OAuth2 and JWT-based security, ensuring compliance with financial regulations.

Integrated anomaly detection models to flag credit risk patterns, improving decision accuracy by 15%.

Built GenAI-powered chatbots to automate customer support workflows and internal queries.

Optimized Hibernate queries and indexing, improving database performance by 40%.

Maintained 99.95% uptime by deploying applications on AWS EC2, RDS, and S3 with monitoring via CloudWatch.

Automated CI/CD pipelines using Jenkins, reducing release cycles from 5 days to 2 days.

Enforced Git workflows and code reviews, reducing merge conflicts by 90%.

Environment: Java, Spring Boot, React.js, AWS, PostgreSQL, OAuth2, Jenkins, Docker

American Express — Full Stack Java Developer

Phoenix, AZ Jan 2023 – Jan 2024

Delivered full-stack financial platforms supporting millions of daily transactions.

Improved frontend performance by 50% using code splitting, caching, and virtual DOM optimizations.

Built predictive fraud detection features using Python and SageMaker-based model workflows.

Reduced API response times from 2.4s to <1s via performance tuning and caching strategies.

Led AWS cloud migration, achieving 40% infrastructure cost savings.

Implemented microservices architecture, improving team delivery speed by 35%.

Automated Selenium test suites, reducing manual QA effort by 60%.

Environment: Java, Spring Boot, React.js, AWS, PostgreSQL, SageMaker, Jenkins

Securian Financial — Java Developer

St. Paul, MN Jan 2022 – Jan 2023

Built secure backend systems with Spring Boot and Hibernate for financial services.

Assisted in deploying ML models for portfolio forecasting and analytics.

Migrated monolithic systems to microservices, improving scalability and deployment speed.

Improved database performance by 20% via SQL tuning and indexing.

Environment: Java, Spring Boot, React.js, Python, PostgreSQL, Microservices

7-Eleven — Java Developer

Irving, TX Mar 2021 – Nov 2021

Developed backend modules for retail systems using Spring Boot and MySQL.

Supported inventory trend analysis using basic predictive models.

Built REST APIs and improved logging and exception handling.

Environment: Java, Spring Boot, MySQL, REST APIs

EDUCATION:

Bachelor of Science in Computer Science

Midwestern State University — Wichita Falls, TX

CERTIFICATION:

AWS Certified Developer – Associate

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