We're
building digital home-buying experiences with Python-led full-stack engineering.
You have
strong Python, React and full-cycle engineering experience.
Together we
build, own and improve scalable customer-facing technology.
Do work that matters
:
As a
Senior Software Engineer - Full Stack
, you'll be a hands-on individual contributor within the
Digital Growth Engineering Chapter
, part of the
Digital and Growth Engine Crew
in our
Digital Technology Home Buying Domain
. With
Python as a key focus
, you'll design, build and evolve production-grade services and applications across the full stack, contributing from backend APIs and integrations through to customer-facing experiences.
You'll own engineering outcomes across the
full software development lifecycle
, from solution design and coding through testing, deployment, observability and continuous improvement. This is a role for an experienced engineer who still loves to code, solve complex technical problems and take real ownership of what they build, while lifting engineering standards and delivering technology that directly improves our digital home-buying experiences.
See yourself in our team:
The
Digital Growth Engine Crew
sits within
Home Buying Technology
, building and evolving the digital experiences that help customers navigate one of life's biggest decisions: buying a home. The chapter brings together modern engineering, experimentation and data-led thinking to create quick, intuitive and scalable customer journeys, while continually improving how customers discover, engage with and move through CBA's home-buying ecosystem. Their work directly supports digital growth,



removes friction from critical experiences and delivers measurable value for customers, bankers and business stakeholders, making technology a genuine driver of better customer outcomes and sustainable growth.
We're interested in hearing from people who
Have strong Python engineering experience, building robust, scalable and maintainable backend services, APIs and applications.
Bring full-stack capability, confidently working across backend systems and modern frontend technologies such as React and TypeScript/JavaScript.
Practise full-cycle engineering, taking solutions from discovery, design and architecture through development, testing, deployment and production support.
Embrace a "you build it, you own it" mindset, taking accountability for the reliability, performance and ongoing evolution of services in production.
Have hands-on experience building and operating applications in the cloud, using modern cloud-native patterns, containers and infrastructure automation.
Understand modern DevOps and CI/CD practices, including automated testing, deployment, observability, monitoring and incident management.
Thrive in cross-functional engineering teams, contributing to technical design decisions while continuously improving code quality, security, scalability and customer outcomes.
Tech skills
We use a broad range of tools, languages, and frameworks.



We don't expect you to know them all but having significant experience and exposure with some of these (or equivalents) will set you up for success in this team
Python Engineering:
Python 3, FastAPI, Django, Flask, Pydantic, SQLAlchemy, Pytest, asyncio
Full-Stack Development:
React, TypeScript, JavaScript, Next.js, HTML5, CSS3, REST APIs, GraphQL
Software Architecture:
Microservices, API-first design, event-driven architecture, distributed systems, SOLID principles, design patterns
AI & GenAI:
LLMs, Generative AI, RAG, AI agents, prompt engineering, embeddings, vector search
AWS Cloud:
AWS Lambda, ECS, EKS, EC2, S3, API Gateway, RDS, DynamoDB, SQS, SNS, IAM, CloudWatch
DevOps & CI/CD:
GitHub Actions, Jenkins, Docker, Kubernetes, Helm, Terraform, automated build, test and deployment pipelines
Data & Integration:
PostgreSQL, MySQL, MongoDB, DynamoDB, Redis, Kafka, SQS, SNS
Testing & Quality:
Pytest, Jest, Cypress, Playwright, TDD, unit, integration, API and end-to-end testing
Full-Cycle Engineering:
Solution design, development, code review, deployment, observability, production support, troubleshooting, performance optimisation
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.
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Advertising End Date: 16/10/2026

📌 Senior Software Engineer - Full Stack (Python) (New South Wales)
🏢 Commonwealth Bank Of Australia
📍 New South Wales