Full Stack Java Developer with 5+ Years Experience

Venkata Sai Jaswanth Kumar Vellanki

972-***-**** ****************@*****.*** linkedin

Professional Summary

Full Stack Java Developer with 5+ years of experience building scalable, secure, and high-performance enterprise applications using Java, Spring Boot, React, and Angular. Strong expertise across the full software development lifecycle (SDLC), including frontend development, backend services, API design, microservices architecture, and cloud-native deployments. Proven ability to optimize application performance, implement CI/CD automation, and deliver reliable solutions in Agile environments.

Technical Skills

Languages: Java, JavaScript (ES6+), TypeScript, Python, SQL Backend: Spring Boot, Spring MVC, Hibernate/JPA, REST, GraphQL Frontend: React.js, Angular, Redux, NgRx, HTML5, CSS3 Databases: MySQL, PostgreSQL, MongoDB, Cassandra, Oracle Cloud & Devops: AWS (EC2, S3, RDS, Lambda), Azure, GCP, Docker, Kubernetes, Jenkins, GitLab CI DevOps & CI/CD: Docker, Kubernetes, Jenkins, GitLab CI/CD, Ansible Testing: JUnit, Mockito, Selenium, Cypress, Postman Security:OAuth2, JWT, Spring Security

Tools: Git, Maven, Gradle, JIRA, SonarQube, IntelliJ IDEA, Eclipse, VS Code Core CS:Data Structures & Algorithms, OOP, Design Patterns, Multithreading, Distributed Systems Professional Experience

Full Stack Java Developer—U.S. Bank

June 2024 – Present

• Developed and maintained full-stack enterprise applications using Java, Spring Boot, React, and Angular across the full SDLC.

• Built responsive single-page applications (SPAs) using React.js and Angular, ensuring cross-browser compatibility and improved user experience.

• Designed and implemented RESTful and GraphQL APIs to support frontend functionality and third-party integrations.

• Implemented microservices architecture using Spring Boot, Docker, and Kubernetes to improve modularity and deployment efficiency.

• Used GitHub Copilot to accelerate feature development, reduce boilerplate code, and improve developer productivity across backend and frontend modules.

• Secured backend services using OAuth2 and JWT, enforcing role-based access control and API security standards.

• Optimized database schemas and queries across MySQL and PostgreSQL, improving backend performance and response times.

• Built and maintained CI/CD pipelines using Jenkins and GitLab, enabling faster and more reliable deployments.

• Improved system reliability by implementing robust error handling, logging, and monitoring, reducing production issues.

full stack java Developer—Pfizer

November 2020 – December 2022

• Developed full-stack features using Java (Spring Boot), React.js, and Angular for enterprise healthcare applications.

• Built and consumed RESTful APIs, integrating external and internal services.

• Applied object-oriented design principles and design patterns to create maintainable and scalable Java code.

• Implemented Spring Security, OAuth2, and JWT to secure backend services.

• Achieved 90%+ test coverage through unit and integration testing using JUnit, Mockito, Selenium, and Cypress.

• Collaborated with UI/UX, QA, and DevOps teams in Agile/Scrum environments to deliver features on schedule.

• Supported CI/CD pipelines and automated builds using Jenkins and Git-based workflows. Software Developer—USAA

January 2019 – November 2020

• Developed scalable backend services using Java, Spring Boot, and microservices architecture.

• Built reusable REST and SOAP services supporting core business functionality.

• Developed responsive frontend components using React.js and Angular, integrated with backend APIs.

• Optimized SQL queries and stored procedures in MySQL and PostgreSQL to improve application performance.

• Implemented multithreading and concurrency techniques for high-traffic production modules.

• Contributed to automated build and deployment pipelines using Maven, Gradle, and Jenkins. Education

Master of Science in Computer and Information Science Texas A&M University – Commerce,TX

Certifications

AWS Certified Solutions Architect – Associate (2024) AWS Certified Cloud Practitioner (2024)

Oracle Cloud Infrastructure Foundations (2024)

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