Senior Full Stack Software Engineer

Senior Software Engineer (Full Stack) – Fraud Technology Shape the future of AI-enabled fraud and scam detectionBuild cloud-native solutions that protect millions of customersJoin a high-performing engineering team solving complex security challenges See yourself in our team Group Security brings together security, resilience, cyber and fraud capabilities with a shared purpose of safeguarding a brighter future for all. You'll be part of the Fraud Technology Crew, contributing to the Group's fraud detection and prevention capabilities. Our teams design, build, deploy and operate: Custom in-house web applications hosted on AWSAI and data-driven fraud detection platformsIntegrations with enterprise and SaaS platformsHigh-volume, real-time customer services You'll join a collaborative, inclusive and high-performing engineering team delivering solutions that protect millions of customers every day. Based in Sydney or Melbourne, you'll work alongside talented engineers, data specialists and fraud experts committed to staying one step ahead of evolving threats and delivering better outcomes for our customers. Do work that matters As a Senior Software Engineer (Full Stack), you'll play a key role in helping protect our customers from fraud and scams. Working in the Fraud & Scam Chapter within Fraud Technology, you'll design, build and enhance applications and platforms that help address emerging threats. You'll contribute to technologies that support scam detection, digital intrusion alerts and fraud prevention. This is an opportunity to solve complex engineering challenges, influence technical direction and deliver solutions that make a genuine difference to customer security. We're looking for experienced Full Stack Engineers to modernise our fraud technology platforms and deliver secure, scalable solutions. This is an opportunity to: Influence engineering excellence across Fraud TechnologyBuild modern cloud-native applicationsDeliver secure and resilient customer experiencesHelp shape the future of AI-enabled fraud detection Technical Experience You'll bring: Strong experience with PostgreSQL, Snowflake, SQL, scalable backend services, RESTful APIs, event-driven architectures, and Snowflake data pipeline development and integrationStrong hands-on development experience with JavaScript/TypeScript, React, Node.js and PythonExperience building scalable backend services and APIsAWS cloud experienceDocker and containerised application developmentSQL experience including PostgreSQL and SnowflakeExperience with GitHub and CI/CD tooling including GitHub Actions and TeamCity Nice to Have Strong understanding of data engineering conceptsDatabase performance optimisationPython for automation and data processingShell scripting (Bash)Experience building applications that minimise I/O and maximise performance Quality, Security & DevSecOps You'll also have: A security-first engineering mindsetExperience with automated testing practicesAPI and integration testing experienceExposure to DevSecOps practicesExperience with observability tools such as Splunk or ObserveProduction monitoring and operational support experience Ways of Working We're looking for engineers who: Take end-to-end ownership of the solutions they buildEmbrace AI coding assistants such as GitHub Copilot and similar developer productivity toolsEnjoy mentoring and uplifting other engineersThrive in Agile delivery environmentsHave a passion for continuous improvement and engineering excellence Working with us At CommBank, we're committed to creating an accessible, inclusive and respectful workplace. If you require support or adjustments, please let us know. We welcome applications from people of all backgrounds and we're particularly committed to making a positive difference for Aboriginal and/or Torres Strait Islander Peoples. For support please contact 1800 989 696. If you're already part of the Commonwealth Bank Group (including Bankwest, x15ventures), you'll need to apply through Sidekick to submit a valid application. We’re keen to support you with the next step in your career. We're aware of some accessibility issues on this site, particularly for screen reader users. We want to make finding your dream job as easy as possible, so if you require additional support please contact HR Direct on 1800 989 696. Advertising End Date: 09/08/2026