Integration Developer (Java, J2EE & API's) | Short Term Contract

Integration Developer (Java, J2EE & API's) Snr Level

Sydney CBD | Hybrid

Short Term Contract - likelihood of extension

Build the Integrations That Power Enterprise Applications Do you enjoy solving complex integration challenges and building scalable, high-performing solutions?

We're looking for an experienced Integration Developer to join a collaborative technology team delivering enterprise integration solutions across a large and evolving environment. You'll play a key role in designing, developing and supporting API and integration services that enable critical business applications to communicate seamlessly.

If you're passionate about Java development, modern integration patterns and API design, we'd love to hear from you.

What You'll Be Doing You'll contribute to the design, development and support of enterprise integration solutions by:

• Designing, developing and maintaining integration services using Java and J2EE technologies
• Building, exposing and supporting RESTful APIs and web services
• Developing scalable, secure and high-performing integration solutions across multiple enterprise applications
• Working closely with solution architects, business analysts and development teams to deliver end-to-end integration outcomes
• Integrating cloud and on-premise applications using modern integration frameworks and middleware
• Writing clean, reusable and well-documented code following engineering best practices
• Troubleshooting production issues and optimising integration performance
• Participating in code reviews, testing and continuous improvement initiatives
• Supporting CI/CD practices and contributing to DevOps-driven delivery.

What You'll Bring We're looking for someone with strong technical capability who enjoys delivering reliable integration solutions within complex enterprise environments.

Essential Skills ✔ Strong commercial experience developing applications using Java and J2EE

✔ Experience designing and developing REST APIs and web services

✔ Strong understanding of enterprise integration patterns and API-led architecture

✔ Experience working with JSON, XML, SOAP and REST technologies

✔ Strong SQL and relational database experience

✔ Experience integrating multiple enterprise applications and systems

✔ Knowledge of secure API development including authentication and authorisation mechanisms

✔ Excellent problem-solving and communication skills

Highly Regarded

• Experience with API Management platforms (Apigee, MuleSoft, Kong or similar)
• Experience with messaging technologies such as Kafka, JMS or RabbitMQ
• Exposure to cloud platforms including AWS, Azure or GCP
• CI/CD experience using Jenkins, GitHub Actions, Azure DevOps or similar
• Experience working within Agile delivery teams
• Exposure to Docker, Kubernetes or container-based deployments

Why Apply?

• Work on enterprise-scale integration projects that support critical business platforms
• Build modern API and integration solutions using industry-leading technologies
• Collaborate with experienced architects, engineers and delivery teams
• Hybrid working environment with long-term project stability
• Opportunity to broaden your technical expertise across cloud, integration and modern software engineering

If you're an experienced Integration Developer who enjoys designing scalable APIs, solving integration challenges and delivering high-quality enterprise solutions, we'd love to hear from you.