Senior Software Engineer

CommBank; City of Melbourne; On-site; AUD 140,000 - 200,000; Full time

Job summary

Commonwealth Bank's Unloan team is hiring a Senior Software Engineer in Melbourne to design and build customer-facing experiences for the home lending journey. You will own solutions end to end, from implementation and testing through deployment and production support, leveraging TypeScript, React and Node.js in a modern AI-first environment.

Join a startup-like squad within Australia’s largest bank, working with GraphQL/REST APIs, PostgreSQL, and cloud/CI/CD tooling to deliver scalable, secure

Qualifications

• Strong TypeScript/React/Node.js experience.
• Experience with Next.js and GraphQL.
• Proficient in PostgreSQL and data modelling.
• Understand scalable, distributed system design.

Responsibilities

• Design and architect customer-facing experiences for the home lending journey.
• Own implementations from coding through testing to production support.
• Collaborate with AI platforms and tooling to accelerate delivery.
• Ensure code quality, security and maintainability in production.

Skills

TypeScript

React

Next.js

Node.js

Tools

GraphQL

REST APIs

PostgreSQL

Job description

Senior Software Engineer to Customer Acquisition Unloan (React, TypeScript)

Commonwealth Bank

Engineering to Software (Information and Communication Technology)

Full time

TypeScript

Node.JS

REST APIs

We're creating AI-powered lending experiences at scale.

You have the drive to build skills for the future of tech.

Together we make a real difference

Do work that matters: We're Unloan, a start-up inside Australia's largest bank, combining the speed, autonomy and close-knit culture of a tech start-up with the scale, trust and stability of Commonwealth Bank.

As a Senior Software Engineer in our Acquisition Squad, you'll design, architect and build customer-facing experiences that support every stage of the home lending journey, owning solutions end to end, from implementation and testing through to deployment and production support.

Working at the forefront of AI-enabled software engineering, you'll leverage orchestrators, harnesses and models to accelerate delivery, improve quality and help shape the future of how software is built, bringing strong technical fundamentals, curiosity, pragmatism and a bias for delivery to everything you do.

See yourself in our team:

Join the Customer Acquisition Crew at Unloan, where we're simplifying and transforming the lending experience through technology.

Working in a startup-minded environment, you'll be part of a micro squad with the autonomy to solve meaningful problems, influence decisions and directly shape customer outcomes.

As an AI-first business, engineers have access to modern AI platforms, significant AI capability investment, substantial token allocation across leading AI models and tooling, and practical experience with agentic solutions that will shape the next decade of technology careers.

You'll join a collaborative team that values ownership, continuous improvement and practical innovation to solve real customer problems.

We’re interested in hearing from people who:

Have strong Type Script, React, Next.js and Node.js development experience.

Can design, build and consume Graph QL and REST APIs.

Bring solid PostgreSQL expertise across modelling, migrations and optimisation.

Understand scalable system design, distributed services and integrations.

Write clean, secure, well-tested and maintainable production code.

Have a strong full-cycle engineering mindset. You own what you build in production.

Work in an AI-first way and can direct, review and refine AI-generated code.

Understand how to leverage agentic workflows and apply sound engineering judgement.

Balance engineering excellence with pragmatism, speed and collaboration.

We're an AI-first business. We don't expect you to know everything here, but experience with some of it, or the equivalents, will set you up for success.

Cloud and Infrastructure:

Azure, Cloudflare, Docker, Infrastructure as Code (Bicep, Terraform)

DevOps and CI/CD:

GitHub, GitHub Actions, CI/CD pipelines, Monorepo tooling

Testing and Quality:

Jest, Playwright

Monitoring and Observability:

Application Insights

Engineering Practices:

Full-cycle engineering, Incident response

AI and Developer Productivity:

Claude Code, GitHub Copilot, Agentic AI workflows, AI-assisted code generation, testing and debugging, Prompting and context management

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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Posted:02-09-2026

Salary:Attractive package will be offered to right candidate