Staff Software Engineer — AI-Driven Fraud Tech Platform

Commonwealth Bank; Sydney; On-site; AUD 180,000 - 260,000; Full time

Job summary

Commonwealth Bank's EC Technology team is seeking a Staff Software Engineer to build and operate production services, APIs, data integrations and AI-powered capabilities for detecting and investigating financial crime. This hands-on role spans across backend and frontend where needed, shaping design decisions and driving engineering excellence.

You will own production outcomes, contribute to architecture, mentor engineers and help modernise shared platforms while embedding strong security,

Qualifications

• Strong foundations in algorithms, data structures, concurrency and system design.

Responsibilities

• Design, build and operate production services and APIs with clear contracts and integration boundaries.
• Contribute to architecture and design decisions, including refactoring, modularisation and performance improvements.
• Consolidate capabilities onto shared platforms and treat the retirement of legacy technology as core engineering work.
• Build and maintain CI/CD pipelines, automated testing and progressive delivery practices.
• Establish strong reliability and observability through dashboards, alerting, service-level objectives and operational ownership.
• Engineer secure and dependable AI and agentic features, including orchestration, evaluation and guardrails.
• Embed security, privacy, reliability and regulatory controls into design and delivery.
• Raise engineering standards through thoughtful code reviews, pairing and clear technical reasoning.

Skills

Algorithms

Data structures

Concurrency

System design

Backend services

APIs

Data integration

React

TypeScript

Java/Kotlin/Go/Python

Cloud-native

Kubernetes

Docker

CI/CD

Observability

Security & risk controls

Tools

AWS

Kubernetes

Docker

GitHub Actions

Argo CD

Kafka

Grafana/Prometheus

Job description

Commonwealth Bank's EC Technology team is seeking a Staff Software Engineer to build and operate production services, APIs, data integrations and AI-powered capabilities for detecting and investigating financial crime. This hands-on role spans across backend and frontend where needed, shaping design decisions and driving engineering excellence.

You will own production outcomes, contribute to architecture, mentor engineers and help modernise shared platforms while embedding strong security,