Principal Full-Stack Engineer: AI-Powered Banking

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

Job summary

Commonwealth Bank is seeking a Principal Software Engineer - Full Stack to shape the next generation of assisted technology for branch and customer experiences. You will architect scalable services, embrace AI-enabled engineering, and own the technical direction across teams.

You’ll work across TypeScript, React, Next.js, Node.js, APIs, .NET and cloud, delivering production-ready systems with secure-by-design principles and strong observability.

Qualifications

• Principal-level full-stack expertise across TypeScript, React, Next.js, Node.js, APIs, .NET and cloud.
• Experience shaping architecture and leading large-scale modernisation efforts across teams.
• Ability to own health and direction of technology landscapes with customer impact in mind.

Responsibilities

• Define architecture for AI-powered, agentic software across customer journeys.
• Mentor engineers and influence architectural direction across multiple teams.
• Deliver scalable services and ensure reliability, security and performance.
• Partner with business and product stakeholders to turn ideas into solid technical options.

Skills

React

Next.js

Node.js

TypeScript

.NET

Cloud

Tools

AWS

APIs

Job description

Commonwealth Bank is seeking a Principal Software Engineer - Full Stack to shape the next generation of assisted technology for branch and customer experiences. You will architect scalable services, embrace AI-enabled engineering, and own the technical direction across teams.

You’ll work across TypeScript, React, Next.js, Node.js, APIs, .NET and cloud, delivering production-ready systems with secure-by-design principles and strong observability.