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Senior Java Software Engineer

TEKsystems

3.6
302 reviews
TEKsystems
Job Type   /   Job Level
Contract   /   Others/Any
Job Location
Sydney, New South Wales, Australia
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  • 12‑month contract focused on AI‑accelerated engineering using tools like Claude
  • Hands‑on role building real‑time fraud and risk decisioning platforms at scale
  • Competitive daily rate + 2 days Work from Home hybrid arrangement

The Company

This organisation is a global financial services institution, operating across banking, payments and financial products with teams distributed throughout Australia, Asia‑Pacific, Europe and the Americas. The technology function is strongly product‑led, with engineers owning platforms end‑to‑end and a clear mandate to build and evolve core systems in‑house, rather than relying on vendor solutions.

The Role

You will join a Fraud & Financial Crime engineering capability, responsible for building and evolving core risk engines and real‑time decisioning platforms that support high‑volume, mission‑critical banking and payments use cases.

This is a hands‑on senior engineering role with a strong emphasis on AI‑driven development. Engineers in this team actively use tools such as GitHub Copilot and Claude to accelerate feature delivery, assist with design, generate boilerplate, improve test coverage and speed up problem solving. There is a clear expectation that you understand, review and validate AI‑generated outputs, applying sound engineering judgement at all times.

You will work within a co‑located agile squad, delivering systems that ingest large data volumes and return decisions in real time across domains including credit cards, digital banking, payments and identity/origination flows.

Key Responsibilities

  • Design, build and maintain core fraud and risk decisioning services
  • Deliver high‑impact features in short, iterative cycles
  • Build Java microservices supporting real‑time decision flows
  • Use GitHub Copilot and Claude to accelerate coding, testing and solution design
  • Review, refine and validate AI‑assisted code before production release
  • Contribute to shared engineering platforms and reusable services
  • Collaborate closely with product managers and DevSecOps engineers
  • Improve system scalability, resilience and observability
  • Produce clean, well‑tested, production‑ready Java code

What You Bring To The Table

  • Strong Java backend engineering capability
  • Experience building microservices and RESTful APIs
  • Exposure to event‑driven and streaming architectures (e.g. Kafka or similar)
  • Experience with fraud, risk, rules engines or complex data‑driven systems
  • Hands‑on experience using AI coding tools such as GitHub Copilot or Claude in day‑to‑day development
  • Cloud‑native development experience
  • Containerisation and orchestration using Docker and Kubernetes
  • CI/CD pipelines and automated testing practices
  • SQL and relational databases (NoSQL exposure beneficial)
  • Strong software engineering fundamentals and ownership mindset

Benefits

  • Work in a team where AI‑assisted development with Claude and Copilot is encouraged and embedded, not experimental
  • 12‑month contract offering stability while delivering complex, high‑impact platforms
  • Strong engineering culture focused on quality, autonomy and modern delivery practices

Location & Working Model

  • Based in Sydney or Melbourne
  • Hybrid working model – 3 days in the office, 2 days working from home

How To Apply

For more information you can click APPLY to register your interest, or alternatively, reach out to Tex Fletcher in our Sydney office at tex.fletcher@teksystems.com

About TEKsystems

We’re partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a committed team working with over 6,000 clients across North America, Europe and Asia‑Pacific. As an industry leader in talent solutions and technology services, we work with progressive leaders to drive change. That’s the power of true partnership.
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