Senior Java Backend Developer

Neos is Seeking a Sr. Java Backend Developer for a long-term contract role with our client in Austin, TX., Plans, develops, tests, and documents computer programs, applying knowledge of programming techniques and computer systems. Evaluates user request for new or modified program, such as for financial or human resource management systems, clinical research trial results, statistical study of traffic patterns, or analyzing and developing specifications for bridge design, to determine feasibility, cost and time required, compatibility with current system, and computer capabilities. Consults with user to identify current operating procedures and clarify program objectives. Formulates plan outlining steps required to develop program, using methodologies such as structured analysis and design or object-oriented development., Design and build secure, scalable backend interfaces and integration points. Develop, document, and maintain enterprise-grade RESTful web services. Build and optimize high-volume data-processing pipelines with the Spring framework. Map data structures to support seamless exchange across applications and third-party systems. Write comprehensive unit and integration tests and resolve data-processing bottlenecks and API latency issues. Collaborate with systems analysts, business analysts, database administrators, and frontend teams to define interface requirements and schemas. Perform other duties as assigned.

8 years - Required - Designing and developing solutions in Java using core enterprise concepts.

8 years - Required - Designing scalable, secure, and maintainable end-to-end interface architectures for internal and external system integrations.

8 years - Required - Hands-on expertise across the Spring ecosystem.

8 years - Required - Developing and consuming RESTful APIs secured with standard protocols, including OAuth 2.0 and JWT.

8 years - Required - Working with microservices architectures and parsing XML and JSON data.

8 years - Required - Working with relational databases such as Oracle, optimizing SQL, and using ORM tools such as Hibernate and JPA.

8 years - Required - Collaborating across engineering, product management, and business analysis teams to define data requirements and support seamless end-to-end integration.

8 years - Required - Implementing application design best practices to improve performance, scalability, and maintainability.

Preferred Skills/Experience

3 years - Preferred - Using build tools such as Maven or Gradle and version control systems such as Git.

3 years - Preferred - Applying Agile development methodologies.