Senior Backend Java Developer

Quick Facts

Onsite 5 days/week in Plano, TX. Contract duration: 1 year.

Description

Seeking an experienced Senior Backend Java Developer to design, develop, and maintain robust, scalable back-end solutions using Java and related technologies. The role focuses on production-grade RESTful services and APIs, strong security, database integration, performance/scalability, testing, and production support. You will collaborate with cross-functional teams to deliver high-quality software that meets business needs.

Responsibilities

• Design, develop, and maintain secure, production-grade RESTful web services and APIs using Java and the Spring Framework.
• Use Spring modules including Spring Core, Spring MVC, Spring Security, Spring Data, Spring JDBC, and Spring Batch.
• Implement database integration using MyBatis, JDBC, Hibernate/JPA, and Oracle SQL.
• Add caching mechanisms to improve performance and scalability.
• Handle JSON/XML serialization and deserialization (e.g., Jackson).
• Create and maintain API documentation using SpringFox and Swagger/OpenAPI.
• Implement real-time communication via WebSocket and related integrations.
• Apply CDN integration and caching strategies for content delivery optimization.
• Deploy, configure, monitor, and troubleshoot on Apache Tomcat and Oracle WebLogic.
• Implement security using OAuth 2.0, JWT, SSO, and SSL/TLS.
• Develop unit and integration tests; participate in code reviews.
• Work with Maven, Git/GitHub, Jenkins, and CI/CD pipelines.
• Integrate AI/LLM-assisted techniques to improve engineering workflows and operational efficiency.
• Support production activities including performance tuning, debugging, and root-cause analysis.
• Stay current with technology trends and mentor team members.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field
• 5+ years of Java back-end development experience
• Proficiency in Java and Spring Framework (Spring, Spring Boot, Spring Batch)
• Strong object-oriented programming skills plus data structures and algorithms
• Experience with Oracle SQL and database design
• Experience building RESTful web services and APIs
• Experience with Maven
• Knowledge of version control systems, particularly Git
• Strong understanding of application servers (Tomcat and WebLogic)
• Experience with Jenkins or other CI tools
• Familiarity with automated testing frameworks such as JUnit
• Understanding of authentication/authorization mechanisms, including OAuth
• Knowledge of SOAP web services and related technologies
• Strong problem-solving and attention to detail
• Excellent communication and collaboration skills
• Ability to work in a fast-paced Agile environment
• Self-motivated, eager to learn, and able to take on new challenges while contributing to team goals

Preferred Qualifications

• Experience with other databases such as MySQL, PostgreSQL, or MongoDB
• Familiarity with CI/CD pipelines
• Understanding of software development best practices and design patterns
• Experience with Python