Job Title: Java Developer (Mid/Senior) Location: Melbourne, Hybrid & fully remote option available Employment Type: Contract 9-12 months day rate About the Role We're looking for a skilled and motivated Mid/Senior Software Developer to join a growing engineering team. This role is ideal for someone with strong backend development expertise , particularly in Java, messaging systems (STOMP), and data serialization with Apache Avro . You'll play a key role in designing and building scalable systems that power critical business applications. Key Responsibilities Design, develop, and maintain backend services and messaging systems using STOMP (or similar technologies such as Kafka ). Build scalable and maintainable backend solutions in Java . Implement data serialization with Apache Avro to ensure efficient communication across distributed systems. Collaborate with cross-functional teams to define, design, and deliver new features. Optimize application performance, scalability, and reliability. Ensure code quality through unit testing, code reviews, and CI/CD pipelines . Troubleshoot and resolve production issues in a timely manner. Contribute to architecture discussions and technical roadmap planning . Required Skills & Experience 5 years of professional software development experience. Strong proficiency in Java . Hands-on experience with STOMP protocol or similar and message brokers (ActiveMQ, RabbitMQ, etc.). Solid understanding of Apache Avro for data serialization. Experience working with RESTful APIs, microservices, and distributed systems . Strong problem-solving ability and excellent communication skills. Nice to Have Familiarity with Docker and Kubernetes . Knowledge of schema registry and versioning strategies . Exposure to cloud platforms (AWS, GCP, Azure). Why Join Us? Work on cutting-edge backend technologies and distributed systems. Opportunity to influence architecture and technical direction . Collaborative and supportive engineering culture. Flexible work arrangements and fully remote option available If you're passionate about backend development and eager to make an impact in a dynamic environment, we'd love to hear from you. Apply now or reach out for a confidential discussion. Job Reference Number: 06810-0013298274 HS By clicking 'apply', you give your express consent that Robert Half may use your personal information to process your job application and to contact you from time to time for future employment opportunities. For further information on how Robert Half processes your personal information and how to access and correct your information, please read the Robert Half privacy notice: https://www.roberthalf.com/au/en/privacy . Please do not submit any sensitive personal data to us in your resume (such as government ID numbers, ethnicity, gender, religion, marital status or trade union membership) as we do not collect your sensitive personal data at this time.
