Senior Java Backend Engineer | Hybrid (Austin, TX)

RE/SPEC Inc.; Austin (TX); Hybrid; USD 83,000 - 165,000; Part time

Job summary

RE/SPEC Inc. seeks a Senior Java Developer (Contractor) to design and build secure, scalable enterprise Java solutions. The role focuses on RESTful services secured with OAuth 2.0/JWT, microservices, and robust data access patterns within Oracle databases.

Collaboration with engineering, product, and business teams will define data requirements for seamless integrations. You will work in a hybrid model based in Austin, TX, contributing to critical health and human services integrations and

Qualifications

• 8+ years of hands-on Java development experience.
• Experience with Spring ecosystem.
• Design RESTful APIs secured with OAuth 2.0 and JWT.
• Experience with microservices architecture and XML/JSON parsing.
• Experience with Oracle databases, SQL optimization, and ORM tools (Hibernate, JPA).
• Design scalable, secure interface architectures for internal/external integrations.
• Collaborative with cross-functional teams to define data requirements.

Responsibilities

• Design and develop enterprise Java solutions and end-to-end interface architectures that are secure, scalable, and easy to maintain.
• Build and consume RESTful APIs secured with OAuth 2.0 and JWT.
• Develop microservices, parse XML/JSON, and optimize SQL and data access in Oracle.
• Work closely with engineering, product management, and business analysis teams to define data requirements and support full integration.
• Apply sound application design practices to keep systems fast and maintainable.

Skills

Java

Spring Framework

REST APIs

OAuth 2.0

JWT

Microservices

XML/JSON parsing

SQL optimization

ORM Hibernate/JPA

Tools

Maven

Gradle

Git

Job description

RE/SPEC Inc. seeks a Senior Java Developer (Contractor) to design and build secure, scalable enterprise Java solutions. The role focuses on RESTful services secured with OAuth 2.0/JWT, microservices, and robust data access patterns within Oracle databases.

Collaboration with engineering, product, and business teams will define data requirements for seamless integrations. You will work in a hybrid model based in Austin, TX, contributing to critical health and human services integrations and