Principal Full-Stack Engineer: AI-Driven Banking Platform

CommBank; Sydney; On-site; AUD 180,000 - 240,000; Full time

Job summary

CommBank is transforming assisted banking with AI-powered, full-stack engineering. As Principal Software Engineer – Full Stack, you’ll shape the platforms behind branch, customer and colleague experiences with deep expertise in TypeScript, React, Next.js, Node.js, APIs, .NET and cloud.

You’ll own architecture, deliver scalable services, mentor engineers, and influence technical direction across teams to improve reliability and performance for customers and staff.

Qualifications

• Proven full-stack expertise across modern frameworks and languages.
• Experience delivering cloud-native services at scale.
• Strong architectural and problem-solving skills.
• Mentorship and leadership experience appreciated.

Responsibilities

• Define architecture and drive scalable services for branch/customer tech.
• Own delivery from discovery to deployment with secure-by-design focus.
• Mentor engineers and influence across multiple teams.
• Collaborate with product and design to improve customer experiences.

Skills

React

Next.js

Node.js

TypeScript

.NET

Cloud

Tools

Express

MongoDB

AWS

Terraform

AWS CDK

Job description

CommBank is transforming assisted banking with AI-powered, full-stack engineering. As Principal Software Engineer – Full Stack, you’ll shape the platforms behind branch, customer and colleague experiences with deep expertise in TypeScript, React, Next.js, Node.js, APIs, .NET and cloud.

You’ll own architecture, deliver scalable services, mentor engineers, and influence technical direction across teams to improve reliability and performance for customers and staff.