7d ago , from Illawarra Mercury Job Board

- Position: Senior Java Developer (Multiple Openings)
- Contract Length: 12-Month Contract (High potential for extension)
- Location: Sydney CBD (Hybrid working model)
- Industry: Banking / FinTech
- Rate: Competitive Daily Rate (Dependent on experience)

About the Opportunity

We are hiring for a leading financial institution looking to onboard multiple Senior Java Developers across several critical engineering teams in the Sydney CBD.

Key Responsibilities

- Designing, developing, and maintaining robust, scalable, and secure microservices using Java.
- Collaborating with cross-functional teams (Product, DevOps, QA) to deliver high-quality financial software.
- Migrating legacy banking applications to modern cloud architectures.
- Participating in code reviews, mentoring junior peers, and championing engineering best practices.

Technical Skills & Experience Required

- Experience: Minimum 5+ years of professional experience in Java development (Java 8/11/17+).
- Industry Background: Proven experience working within the Banking, Financial Services, or FinTech sectors is essential.
- Frameworks: Strong expertise with Spring / Spring Boot, Hibernate,



or similar frameworks.
- Architecture: Deep understanding of Microservices architecture, RESTful APIs, and event-driven design (e.g., Kafka, RabbitMQ).
- Cloud & DevOps: Hands-on experience with cloud platforms (AWS, Azure, or GCP) and CI/CD pipelines (Jenkins, GitLab, Docker, Kubernetes).
- Database: Proficient in SQL (Oracle, PostgreSQL) and NoSQL databases.
- Testing: Commitment to writing clean, testable code using JUnit, Mockito, and TDD practices.

Bonus Points For

- Experience with domain-driven design(DDD).
- Knowledge of core banking systems, payments infrastructure (e.g., NPP, SWIFT), or trading platforms.
- Familiarity with containerised environments in a highly regulated landscape.

What’s on Offer?

- A stable 12-month contract with a strong likelihood of renewal given the project pipelines.
- Convenient Sydney CBD location with up-to-date office spaces.
- Flexible hybrid working arrangements (mix of WFH and office days).
- The chance to work on large-scale, impactful financial systems that affect millions of Users.

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📌 Senior Java Software Engineer (New South Wales)
🏢 Sirius
📍 New South Wales