Job Title: Java Full Stack Developer (Core Java, Sybase, ReactJS)

Location: Irvine, CA

Experience Required: 8–10 Years

Employment Type: {Contract]

Job Summary

We are looking for an experienced Java Full Stack Developer with strong expertise in Core Java and Sybase Database. The ideal candidate should have deep hands-on experience in building high-performance backend systems using server-side Java (non-J2EE) and working with microservices architecture. Frontend experience in ReactJS is a plus but not mandatory.

Key Responsibilities

• Design, develop, and maintain end-to-end applications using Core Java and Spring Boot
• Build and consume Microservices for scalable distributed systems
• Develop server-side Java applications running directly on JVM (command-line / Unix-based environments)
• Work extensively with Sybase database for:
• Data modeling
• Query optimization
• Backend integration
• Write efficient and optimized SQL queries and stored procedures
• Perform unit testing, debugging, and performance tuning
• Develop and maintain Unix Shell scripts for automation tasks
• Collaborate with Business Analysts (BA) and QA teams to:
• Analyze requirements
• Design technical solutions
• Ensure code quality, maintainability, and adherence to best practices

Required Skills

Must-Have Skills:

• Strong expertise in Core Java (mandatory)
• Hands-on experience with Sybase Database (mandatory)
• Experience in Microservices architecture
• Strong knowledge of Unix/Linux environments & Shell scripting
• Solid understanding of multithreading, collections, and JVM internals
• Experience with SQL query optimization and performance tuning

Good to Have:

• Experience with Spring Boot
• Basic to intermediate knowledge of ReactJS
• Exposure to REST APIs (secondary preference)
• Familiarity with DevOps tools (optional)