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The Onset

Senior Java Engineer

The Onset
Australia · Contract · Mid-Senior
Job Description

Do you want to work on a critical platform powering how millions of users access financial services without the red tape or legacy slowdown?

This is a chance to own real outcomes in a strategic transformation program migrating to a graph-based, cloud-native architecture.

Multiple 12 month Contract roles with extensions likely

  • Up to $1,080 per day
  • Hybrid flexibility: 3 in-office days Sydney CBD, rest WFH


You’ll join a senior engineering team in mid-flight on a multi-epic roadmap, building secure, scalable APIs and entitlement services from the ground up. Think modern Java, event-driven architecture, and real-world customer impact.

Why You’ll Love It

  • Solve complex problems: Build self-service entitlements and strategic authority frameworks not yet done in AU banking
  • Modern tech stack: Java 21 (latest versions), microservices, GCP (or AWS/Azure), Cassandra, Solace/SQS/SNS
  • Collaborate with peers: Senior engineers only, no spoon-feeding, high trust, strong code culture
  • Work with purpose: Every sprint unlocks better, safer, more transparent access for real users


You’ll Be a Great Fit If You Have

  • Minimum 8-15+ years of backend Java experience
  • Strength in designing distributed systems, APIs, and cloud-native services
  • Experience in messaging/event-driven patterns (Solace/SNS/SQS)
  • Exposure to graph databases or Gremlin
  • A builder’s mindset: pragmatic, communicative, and always thinking beyond the ticket


The Interview Process: quick 2x rounds of interviews.

  • Stage 1: Human-first chat, alignment, values, and technical fit
  • Stage 2: 1-hour Java coding challenge (live)
  • Quick decisions, strong feedback loops, and long-term extension potential


Ready to level up your contract career with impactful work and modern architecture? Let’s talk. [email protected]

Key Skills

Ranked by relevance

java cloud microservices cassandra tape gcp
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Country Guide

Australia

Skilled migration pathways & strong salaries

Posted
May 27, 2025
Type
Contract
Level
Mid-Senior
Location
Sydney
Company
The Onset

Industries

Staffing Recruiting

Categories

Engineering Information Technology

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