JOB DETAILS

Senior Database Engineer – MongoDB

CompanyWestpac Group
LocationSydney
Work ModeOn Site
PostedAugust 4, 2026
About The Company
From rescue helicopters to signing the Equator Principles, from paying super during parental leave to adding 'Touch ID'​ biometric technology to our banking apps and being first on the scene with a helping hand in times of crisis... we have a proud history of stepping up to be first for our customers, communities and people. As Australia’s first bank and Australia’s first company we put service at the heart of everything we do and our people are our priority. We've grown up as a company and expanded both in Australia and throughout Asia, the United Kingdom and the United States. Now we are made up of your favourite financial institution names including Westpac, BankSA, St.George Bank, BT Financial Group, RAMs and Bank of Melbourne, a change of job doesn’t mean a change of employer at Westpac Group. We've made a commitment to put our customers first in everything we do. This means creating fundamentally superior customer experiences for each customer, every time. We promise that when you meet with someone from Westpac Group, you'll be touched by their genuine dedication to helping our customers prosper and grow. Westpac Group acknowledges the traditional owners as the custodians of this land, recognising their connection to land, waters and community. We pay our respects to Australia's First Peoples, and to their Elders, past and present.
About the Role
What’s the role?

The Senior Infrastructure Tech Lead (MongoDB) is responsible for leading the design, architecture and optimisation of enterprise MongoDB platforms, providing deep technical expertise across database engineering, security, automation and performance while partnering with stakeholders to deliver scalable, secure and reliable database solutions aligned to business needs.

  • Lead the design, architecture and implementation of enterprise MongoDB solutions, ensuring scalability, resilience and alignment with business requirements
  • Drive database security, compliance and governance practices, ensuring adherence to organisational and industry standards
  • Partner with application teams, architects and stakeholders to deliver end-to-end database solutions and provide expert technical guidance
  • Build and enhance automation capabilities using DevOps tools, improving operational efficiency, deployment consistency and platform reliability
  • Lead database performance tuning, troubleshooting and optimisation activities, acting as the escalation point for complex and critical incidents
  • Create and deliver technical documentation, workshops and presentations for both technical and non-technical audiences while mentoring team members and sharing best practices

Additional Information: Flexible working hours may be required to support critical systems and maintenance activities. You'll be part of a collaborative, high-performing team focused on innovation, continuous improvement and operational excellence.

What do I need?
  • Deep expertise in MongoDB architecture, design and administration across on-premises (OpenShift) and cloud environments including AWS and Azure
  • Strong knowledge of database security, encryption, auditing and compliance, with the ability to implement and maintain secure database platforms
  • Hands-on experience with automation and DevOps tooling such as Ansible, Jenkins, Terraform and scripting to improve operational efficiency
  • Proven capability in database performance tuning, optimisation, capacity management and resolving complex technical issues in large-scale environments
  • Exposure to complementary database technologies such as PostgreSQL, Cosmos DB and other NoSQL platforms, with a broad understanding of enterprise technology stacks
  • Strong development skills in SQL, Python and Shell scripting, with experience working across end-to-end infrastructure and platform engineering environments
  • Excellent communication, stakeholder management and problem-solving skills, with the ability to mentor teams, manage competing priorities and work effectively within Agile environments using tools such as Jira and Confluence; MongoDB certification highly regarded
Why join us?
We’re obsessed with becoming our customers' #1 banking partner for life and we’re looking for people who are passionate about helping us achieve that goal. In return, we’re committed to making Westpac the best place to work in the country. Here are just a few of the ways we’re already doing that:
  • Special offers on banking products and discounts from top brands, including generous employee-only mortgage rates!
  • Flexible work arrangements to help you achieve a greater work/life balance, and a variety of leave options including Culture, Lifestyle and Wellbeing leave. 
  • Tailored learning and development opportunities to help your grow your career within the bank. 
  • Lots of opportunities to ‘give back’ to the Community by getting involved in our many volunteering initiatives.
Create your future today
To get started, simply click on the APPLY or APPLY NOW button
 
We’re all about creating a supportive and inclusive community. We welcome everyone – no matter your age, gender, background, or abilities. We also provide additional support to welcome our veterans, Indigenous Australians and neurodiverse community.
 
If you need any adjustments during the recruitment process, you can find more information and contact details on our FAQs and how to contact us page, under the ‘Diversity, sustainability and flexibility’ section.
Key Skills
MongoDBDatabase architectureCloud infrastructureAWSAzureDevOpsAnsibleJenkinsTerraformPythonSQLShell scriptingPerformance tuningDatabase securityAgileStakeholder management
Categories
TechnologySoftwareData & AnalyticsEngineeringFinance & Accounting
Benefits
Banking product discountsMortgage rate discountsFlexible work arrangementsCulture leaveLifestyle leaveWellbeing leaveLearning and development opportunitiesVolunteering initiatives
Job Information
📋Core Responsibilities
The Senior Infrastructure Tech Lead is responsible for designing, architecting, and optimizing enterprise MongoDB platforms while ensuring scalability and security. They will also drive automation initiatives, mentor team members, and provide expert technical guidance to stakeholders.
📋Job Type
full time
📊Experience Level
5-10
💼Company Size
15022
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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