Commonwealth Bank Tech Stack

Australia's largest bank modernizing core banking on AWS and Kubernetes

Financial Services Sydney, NSW 10,001+ employees Public Company

Commonwealth Bank operates Australia's most extensive financial services network across retail, premium, business, and institutional banking, plus funds management and insurance. The tech stack reveals a systematic cloud-first modernization: heavy AWS adoption (Lambda, Kinesis, Redshift, Glue, EMR) paired with containerization (Kubernetes, Docker) and infrastructure-as-code tooling (Terraform, Ansible, Helm), while actively replacing legacy platforms (Azure, ECS, Ab Initio, Genesys, Pega). Engineering hiring dominates (258 roles), signaling sustained investment in platform re-architecture rather than feature velocity alone.

Tech Stack 200 technologies

Core StackNext.js React GraphQL Node.js Docker Kubernetes AWS TypeScript Python GitHub Actions Oracle PostgreSQL GitHub Copilot Apache Spark Scala PL/SQL AWS Lambda Redshift AWS Glue DynamoDB NET Core AWS Aurora Oracle SQL Athena Kinesis AWS EMR IAM AWS Secrets Manager AWS Step Functions AWS SQS+170 more

AdoptingKubernetes Docker Helm Terraform Ansible AWS GitOps CI/CD+7 more

ReplacingAzure AWS ECS Ab Initio Genesys Pega

What Commonwealth Bank Is Building

◆Challenges

Protecting customers from emerging threats
Reducing deployment time of models
Migrating legacy ivr to ai platform
Improving customer nps
Identifying emerging risks
Preventing future issues
Process efficiency improvement
Operational risk exposure
Regulatory change
Improving risk compliance

▲Active Projects

Management reporting
Digital home lending platform
Etl strategy implementation
Commercial lending user experience transformation
Credit risk policy development
Business banking experience in commbank app and netbank
Commbiz digital channel
Build and implement data pipelines in distributed data platforms
Transaction monitoring
Risk reporting automation

Hiring Activity

Steady650 roles · 280 in 30d

Department

Engineering

258

Finance

105

Support

Data

Ops

Product

Sales

Security

Seniority

Senior

194

Staff

137

Mid

113

Manager

Principal

Junior

Lead

Director

Notable leadership hires: Innovation Lead, Chapter Lead, Tech Lead, Chief Engineer, Performance Lead

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About Commonwealth Bank

Commonwealth Bank is Australia's leading retail, commercial, and institutional banking provider, serving over 800,000 shareholders and operating across consumer lending, business banking, wealth management, and superannuation. The company is executing a multi-year migration away from on-premise and legacy banking platforms toward a distributed, cloud-native architecture. Active projects span digital lending platforms, ETL modernization, and AI-driven customer experience layers (commercial lending UX, digital home lending, business banking app enhancements). With 52,000+ employees and hiring across engineering, data, and support globally, the organization is consolidating technical infrastructure while addressing regulatory risk, fraud prevention, and operational efficiency.

HeadquartersSydney, NSW

Company Size10,001+ employees

Hiring MarketsAustralia, India, Philippines, Canada, United Kingdom, Singapore, Germany, United States

Frequently Asked Questions

What tech stack does Commonwealth Bank use?

Primary: Next.js, React, Node.js, TypeScript on AWS (Lambda, Kinesis, Redshift, Aurora). Data: Apache Spark, Scala, Oracle, PostgreSQL. Infrastructure: Kubernetes, Docker, GitHub Actions, Terraform. Adopting GitOps and Helm for deployment automation.

What legacy systems is Commonwealth Bank replacing?

Actively replacing Azure, AWS ECS, Ab Initio, Genesys (contact center), and Pega (BPM). Migrating to Kubernetes-based, AWS-native architecture with modernized IVR and data pipeline infrastructure.