> Markdown version of [/jobs/ext/3998140-full-stack-developer-java](https://www.wearedevelopers.com/jobs/ext/3998140-full-stack-developer-java). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full-stack Developer Java - **Company:** Tata Consultancy Services Limited - **Location:** Sunnyvale, CA, United States - **Salary:** $90,000.0 - $121,000.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), Spring Security, Application Performance Management, User Authentication, Automation of Tests, Cloud Computing, Databases, Continuous Integration, Persistent Data Structure, Data Structures, Relational Databases, Software Debugging, Distributed Systems, Gradle, Hibernate (Java), Java Persistence API, Junit, PostgreSQL, Apache Maven, Microsoft SQL Server, MySQL, Performance Tuning, Regression Testing, Mockito, Memory Leaks, Systems Integration, Multithreading, Freeform SQL, Load Balancing, Spring-boot, Caching, Backend, Git, Api Design, Restful APIs, Software Version Control, Microservices - **Published:** October 28, 2026 - **Apply:** https://jobs.localjobnetwork.com/apply/add/88724835/1 ## About the Role Java; Spring Boot; Spring Security; and Spring Data JPA.; JUnit; RESTful APIs; SQL Server, * System Design: Proven experience with distributed systems design, load balancing, caching strategies, and system scalability. * Data Structures & Algorithms: Strong foundational knowledge of data structures (trees, graphs, hash maps) and algorithms to write highly efficient code. * Core Java: Deep knowledge of Java 17 or higher, multithreading, and the Collections framework. * Spring Ecosystem: Hands-on experience with Spring Boot, Spring Security, and Spring Data JPA. * Databases: Strong proficiency in relational databases (PostgreSQL, MySQL) and ORM tools (Hibernate). * API Design: Proven experience designing clean RESTful web services and integrating with third-party systems. * Build & Test Tools: Daily experience using Maven or Gradle, alongside testing tools like JUnit and Mockito. * Version Control: Mastery of Git for branching, merging, and pull requests. ## Description * System Design: Architect and scale distributed backend systems that handle high traffic, concurrency, and data throughput. * API Development: Design, develop, and maintain high-throughput, secure RESTful APIs and microservices. * Database Management: Optimize database schemas, write complex SQL queries, and manage data persistence using ORM frameworks. * Security & Auth: Implement and maintain robust security protocols for authentication and authorization. * Testing Automation: Write comprehensive unit, integration, and regression test suites to ensure high code quality. * CI/CD & Cloud: Package applications into containers and assist in deploying services to cloud infrastructure. * Performance Tuning: Troubleshoot, debug, and optimize application performance, memory leaks, and query bottlenecks.