Senior Java Backend Developer (Spring Boot & Microservices)

Quick Facts

• Role: Senior Java Backend Developer (Spring Boot & Microservices)

• Contract: January 1, 2027 – August 31, 2027

• Max hours: 1,280

• Work arrangement: Hybrid (3 days remote / 2 days onsite—Thursday & Friday)

• Location: Austin, TX (local candidates within 50 miles required)

Description

Senior Java Backend Developers will design, build, and maintain secure, scalable Java backend applications for enterprise health and human services systems. The work includes RESTful web services and microservices, high-volume data-processing pipelines, and secure API integration using OAuth 2.0 and JWT. Responsibilities also cover XML/JSON processing and integration with Oracle using Hibernate/JPA.

Responsibilities

• Design, develop, and maintain secure, scalable backend applications using Java

• Build and maintain enterprise RESTful APIs and web services

• Develop high-volume data-processing pipelines using the Spring ecosystem

• Design and implement system integration interfaces for internal and external applications

• Develop and consume OAuth 2.0/JWT-secured REST APIs

• Work with microservices architecture and process XML and JSON data

• Integrate with Oracle databases using Hibernate and JPA

• Optimize SQL queries, API performance, and data-processing workflows

• Create comprehensive unit and integration test cases

• Collaborate with business analysts, system analysts, DBAs, and frontend teams

Requirements

• 8+ years Java enterprise application development

• 8+ years Java-based enterprise solutions and application architecture

• 8+ years hands-on experience with the Spring ecosystem

• 8+ years experience developing and consuming RESTful APIs

• Strong knowledge of OAuth 2.0 and JWT authentication

• 8+ years experience with microservices architecture

• Strong experience parsing XML and JSON data

• 8+ years experience with Oracle, SQL optimization, Hibernate, and JPA

• Experience designing secure, scalable, and maintainable integration architectures

• Excellent collaboration and communication skills

• Local to Austin, TX within 50 miles

• Onsite mandatory every Thursday and Friday

• Provide current location and redacted government-issued ID/driver’s license

Benefits

• Competitive contracting opportunity (3 positions)

• Hybrid schedule with mandatory onsite presence on Thursdays and Fridays

• Work on enterprise-grade backend and integration systems