Westpac tech stack
Westpac builds mostly with Python, SQL, TypeScript, JavaScript. Its stack also includes Azure, AWS, Next.js, React.js. Python is named in 9 of the 28 job postings Westpac published in the last 12 months (32%). Counted by Alion from the job postings of Westpac, updated Oct 5, 2026.
What programming languages does Westpac use?
Python is named in 32% of job postings at Westpac, followed by SQL (32%), TypeScript (14%), JavaScript (14%).
SAS 
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What frameworks and libraries does Westpac use?
Next.js is named in 11% of job postings at Westpac, followed by React.js (11%), Selenium (4%).
What databases does Westpac use?
Oracle is named in 7% of job postings at Westpac, followed by Teradata (7%), MS SQL (4%), MySQL (4%).
What cloud and platforms does Westpac use?
Azure is named in 18% of job postings at Westpac, followed by AWS (11%), Kubernetes (11%), .NET (7%).
Azure
5 18%
AWS
3 11%
Kubernetes
3 11%
.NET
2 7%
Bitbucket
2 7%
Databricks
2 7%
GCP
2 7%
OpenShift
2 7%
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What developer tools does Westpac use?
Copilot is named in 11% of job postings at Westpac, followed by Ansible (7%), Jenkins (7%), Terraform (7%).
What AI and ML technologies does Westpac use?
LLM is named in 4% of job postings at Westpac.
LLM
1 4%
Which engineering practices does Westpac ask for?
CI/CD is named in 32% of job postings at Westpac, followed by RAG (21%), AI Agents (14%), Incident Management (11%).
CI/CD
9 32%
RAG
6 21%
AI Agents
4 14%
Incident Management
3 11%
Platform Engineering
2 7%
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What does each Westpac team work with?
The technologies each team's postings require most often, with the number of postings that require them.
AI/ML
6 postingsIndustrial Engineering
4 postingsNetworking
3 postingsHow does your stack fit Westpac?
How modern is the Westpac stack?
Westpac scores 75 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 1; legacy ones: 0.
How common is the Westpac stack in its industry?
Share of the 146 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Westpac
St.George Bank
60 shared technologies
NCR Voyix
50 shared technologies
Huntington Bancshares
53 shared technologies
Allstate Corporation
52 shared technologies
Citizens Financial Group
52 shared technologies
Jit Team
51 shared technologies
StoneX Group
53 shared technologies
Ameriprise Financial
48 shared technologies
Questions about the Westpac tech stack
What programming languages does Westpac use?
The languages named in Westpac job postings are Python (32%), SQL (32%), TypeScript (14%), JavaScript (14%), Go (11%), as a share of the 28 postings of the last 12 months.
Does Westpac use Next.js?
Yes. Next.js is named in 3 of 28 job postings (11%) and required in 3 of them.
What cloud and platforms does Westpac use?
The cloud and platforms named in Westpac job postings are Azure (5), AWS (3), Kubernetes (3) (postings in brackets).
What skills do you need for a AI/ML job at Westpac?
AI/ML postings at Westpac most often require Go (3), Next.js (3), Python (3), React.js (3), out of 6 postings in the last 12 months.
Is the Westpac tech stack changing?
No new technology has appeared in Westpac job postings in the last six months.
How modern is the Westpac tech stack?
Westpac scores 75 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 1; legacy ones: 0.
How does Alion know the Westpac tech stack?
Alion reads every job posting Westpac publishes and tags the technologies each one names. The figures on this page count the 28 postings of the last 12 months and were updated on Oct 5, 2026.
Method and citation
Alion reads every job posting the company publishes and tags the technologies each one names. Shares count the postings of the last 12 months, open and closed; the company's own products are counted apart. How we count
Alion, "Westpac tech stack: 59 technologies from 28 job postings", as of Oct 5, 2026. https://alion.io/company/westpac-com-au/technologies