Principal Software Engineer
About the job
- Experience operating as a Principal Engineer, Lead Engineer, or senior technical leader within complex enterprise environments.
- A strong track record designing and delivering large-scale distributed systems and platform capabilities.
- Strong engineering judgment and the ability to balance strategic thinking with hands-on technical leadership.
- Experience leading architecture decisions across cloud-native, API-driven, or customer-facing platforms.
- The ability to influence senior stakeholders across engineering, product, architecture, risk, and business teams.
- Experience establishing engineering standards, reusable patterns, and platform strategies across multiple teams.
- Strong mentoring and coaching capability, with a passion for growing engineering talent.
- A minimum of 15 years of extensive experience designing and implementing scalable, maintainable, and reliable software solutions.
- Proficiency in Python, Java, .NET, TypeScript, Go, or similar modern software development languages.
- Experience designing and building APIs, services, and distributed systems.
- Experience with microservices and event-driven architectures.
- Strong experience with front-end technologies such as React JS or Next JS.
- Experience with modern application design patterns, including Domain-Driven Design.
- Experience working across backend, frontend, and integration capabilities.
- Safe and effective use of AI-powered engineering tools to improve development productivity and quality.
- Experience architecting enterprise data pipelines with Python and Apache Airflow.
- Experience designing robust batch and streaming data processing solutions.
- Ability to define data quality, lineage, observability, and governance standards.
- Ability to establish reusable engineering accelerators and platform capabilities.
- Experience designing domain-oriented service architectures aligned with banking capabilities.
- Ability to define service boundaries and ownership models across business domains.
- Strong working experience with AWS and Kubernetes and Docker.
- Experience with Infrastructure as Code using Terraform or CloudFormation.
- Experience with CI/CD and deployment automation.
- Experience with cloud-native architecture patterns.
- Experience with DevSecOps and secure-by-design engineering.
- Experience with automated testing and quality engineering.
- Experience with observability, monitoring, and operational resilience.
- Experience with production platform ownership.
- Experience with incident management and reliability engineering.
- Experience with Agile delivery practices.
- A Bachelor's or Master's degree in Engineering in Computer Science or Information Technology.
- Lead the design, evolution, and delivery of scalable, resilient platforms supporting customer and banker experiences.
- Drive architecture and engineering decisions across multiple squads and technology domains.
- Establish reusable engineering patterns, frameworks, and standards that improve delivery speed and quality.
- Shape platform strategy across cloud, APIs, customer engagement services, workflow orchestration, and AI-enabled capabilities.
- Champion modern engineering practices, including DevSecOps, observability, CI/CD, and automated testing.
- Partner with product, architecture, risk, and business stakeholders to deliver meaningful customer and business outcomes.
- Ensure security, privacy, operational resilience, and responsible AI principles are embedded into platform design and delivery.
- Mentor engineers, influence technical strategy, and foster a culture of engineering excellence.
- Experience with AI-enabled applications and customer experiences using Large Language Models, AI agent architectures, and Retrieval-Augmented Generation.
- Experience with responsible AI controls and governance.
- Experience with model evaluation, monitoring, and operationalisation.
- Curiosity and enthusiasm for AI-enabled customer experiences, automation, and modern digital platforms.
About the company
CommBank offers a wide range of financial services in Australia, including retail, premium, business and institutional banking, funds management, superannuation, insurance, investments and sharebroking. Customers use accounts, loans, investments and insurance, supported by digital tools and advisory services, to manage money and plan for the future across multiple channels. The bank differentiates itself with its size and scope in the Australian market, having over 800,000 shareholders and more than 52,000 employees under one umbrella. Its goal is to help all Australians build and manage their finances and engage with customers and communities.
Company Size
10,001+
Company Stage
IPO
Headquarters
Sydney, Australia
Founded
1911
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Simplify's Take
What believers are saying
- CBA issued US$1.25 billion subordinated notes on 16 September 2026, strengthening Tier 2 capital.
- Reimagined CommBank Yello went live 1 October 2026, deepening daily customer engagement and retention.
- FECCA partnership for October 2026 national conference reinforces migrant banking dominance and acquisition funnel.
What critics are saying
- Finance Sector Union says 232 roles face cuts by November 2026, mostly NSW technology.
- CBA cut 300 jobs in February 2026 and 119 more in April 2026.
- Australia’s 2028 cheque shutdown and competitor payment rails commoditize PaidIt if adoption stalls.
What makes CommBank unique
- CommBank’s PaidIt, launched August 2026, combines PayID, ConnectID, and automated payout verification.
- CommBank’s premium charge card, announced August 2026, targets high-spend customers with Discover network reach.
- CommBank remains Australia’s largest bank by market value, giving unmatched distribution and deposit depth.
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Benefits
Health Insurance
401(k) Retirement Plan
Remote Work Options
Flexible Work Hours
Paid Vacation
Paid Holidays
Company Equity
Wellness Program
Mental Health Support
Conference Attendance Budget
Professional Development Budget
Stock Options
Parent?
PTO?
Growth & Insights and Company News
6 month growth
5%1 year growth
5%2 year growth
5%Commonwealth Bank of Australia has issued £1 billion in floating rate covered bonds under its $40 billion covered bond programme. The Series 140 bonds mature in July 2030 and are guaranteed by Perpetual Corporate Trust Limited as trustee of the CBA Covered Bond Trust. The bonds are listed on the London Stock Exchange. They feature a floating rate structure, with coupon payments adjusting according to a reference benchmark rate throughout the term. The issuance represents a significant sterling-denominated funding initiative by the Australian bank. Sterling covered bond issuances have traditionally provided major Australian banks access to UK and European institutional investors, helping diversify funding sources and manage liability durations.
Growth investment supports Xpansiv’s M&A strategy, international expansion, and product development
Sydney-born, New York-based energy trading firm Xpansiv has completed a capital raising in Europe. The company, which is eyeing an initial public offering, already counts Blackstone, Macquarie, Commonwealth Bank of Australia, Goldman Sachs, Aware Super and Aramco Ventures among its backers. The capital raising is designed to support growth in Australia and globally. Xpansiv's founders argue the energy market is undergoing a significant global shift, driven partly by the artificial intelligence boom. The company's blue-chip share register reflects growing investor interest in energy trading platforms amid rapidly changing global energy markets.
Commonwealth Bank of Australia has issued US$1.25 billion in subordinated notes, according to a 16 September 2026 regulatory disclosure. The subordinated debt, which ranks below senior debt in creditor claims, typically qualifies as Tier 2 regulatory capital under Basel III framework requirements. The bank filed complete documentation with the Financial Conduct Authority's National Storage Mechanism, ensuring compliance with UK transparency standards for listed securities. The US dollar denomination allows the Australian banking institution to access international capital markets and diversify its funding sources beyond domestic instruments. Specific terms including coupon rates, maturity dates, and allocation of proceeds were not disclosed in the announcement. Investors can access full issuance details through the London Stock Exchange's Regulatory News Service platform.
FECCA partnering with CommBank to deliver its National Conference in Canberra. FECCA is proud to be partnering with CommBank to deliver its National Conference in Canberra on 14 to 16 October Prerana Mehta, CEO, FECCA, said: "FECCA is thrilled to have CommBank partner with FECCA and contribute to the important conversations shaping multicultural Australia. CommBank has long supported people from many cultures and communities through life's important moments, including many who have chosen to make Australia their home. FECCA look forward to working together to celebrate the stories, contributions and aspirations of multicultural communities." Monica Wegner, Executive General Manager, Everyday Banking, CommBank, said: "FECCA is proud to support FECCA and the important work it does to champion multicultural communities across Australia. As Australia's largest bank^, nearly one in two new migrants to Australia trust CommBank with their banking needs*, giving FECCA the privilege of supporting its customers with a tailored onboarding experience and helpful resources as they establish and build their lives here. FECCA look forward to listening, learning and working alongside communities to better understand their needs, celebrate their contributions and help create brighter futures for everyone who calls Australia home." *ASX market capitalisation rankings showing CBA as the largest Australian bank by market value in 2026. ^CommBank 2026 Annual Report, page 29.