Staff Engineer : Full Stack Mobile (IOS/ Android) We're embarking on an engineering transformation with a key focus on team leadership and engineering excellence. You have knowledge that spans across development and operations, including coding, infrastructure management, system admin/engineering, and DevOps Toolchains. Together we will build tomorrow’s bank today, using world-leading engineering, technology, and innovation. Do work that matters : CommBank is driving an engineering transformation, seeking innovative and versatile engineers to redefine customer expectations and shape Australia's future economy. Renowned for its cutting-edge IT platforms, agile infrastructure, and pioneering digital solutions, the bank excels in payments, internet banking, and mobile applications. The software team powers Australia’s top banking app and develops technologies like Netbank, Cardless Cash, CommSec Pocket, and Spend Tracker. Their expertise spans web and mobile development as well as designing robust APIs at a remarkable national scale, offering opportunities to join a team at the forefront of industry innovation. See yourself in our team: The CBA technology unit is responsible for delivering industry-leading digital banking experiences to Commonwealth Bank customers. Its remit covers digital delivery, group data and analytics, technology infrastructure, cyber and physical security, fraud prevention, and business resilience for all divisions. The unit is also committed to enhancing workplace technology for over 53,000 employees, providing state-of-the-art tools and resources to empower staff and boost customer outcomes. This role is part of the Group’s Digital and Customer Crew within the CommSec Practice, which operates inside the wider Business Banking Technology division. CommSec, Australia’s largest online retail stockbroker, supports a diverse investor base and utilises a wide range of technologies. The Staff Engineer – Chapter Lead will guide a high-performing team of Software Engineers, offering leadership, strategic consultation across products and features, and supporting key solutions within both the CommSec and broader CBA network. We’re interested in hearing from people who can: Lead and inspire a team of full stack engineers (mobile backend), fostering a culture of engineering excellence and continuous learning. Champion best practices in mobile and backend development, including architecture, testing, CI/CD, and performance optimization. Collaborate with cross-functional teams to deliver high-impact features and improvements to the CommSec platform. Drive technical strategy and architectural decisions across mobile and backend systems, ensuring scalability, maintainability, and security. Mentor and coach engineers, helping them grow in their careers and contribute meaningfully to our mission. Promote a culture of innovation, inclusion, and psychological safety within the team. Partner with stakeholders across product, design, and operations to align on goals and deliver exceptional customer outcomes. Tech skills we’re looking for: We work with a wide range of technologies. Experience with the following (or similar) will set you up for success: Mobile Development iOS : Swift, SwiftUI, Combine, Xcode, XCTest, Fastlane Android : Kotlin, Jetpack Compose, Android Studio, Espresso, Gradle Modular app architecture, MVVM/MVI, clean architecture Deep understanding of mobile app lifecycle, performance tuning, and memory management App Store and Google Play deployment processes Backend Development Languages : .NET Core (C#), Java Architecture : Microservices, RESTful APIs, GraphQL, event-driven systems Databases : SQL (e.g., PostgreSQL, SQL Server), NoSQL (e.g., DynamoDB, MongoDB) Cloud : AWS (preferred), Azure or GCP experience also valued Infrastructure as Code : Terraform, CloudFormation CI/CD : GitHub Actions, Octopus Deploy, Jenkins Testing : Unit, integration, contract, and E2E testing frameworks Observability & SRE Practices Experience with Observe, Grafana, Prometheus, or similar observability platforms Strong understanding of SRE principles, including SLIs/SLOs, incident response, runbooks, and post-incident reviews Proficiency in monitoring, alerting, and performance tuning for both mobile and backend systems Ability to drive operational excellence and ensure high availability and reliability of mission-critical services Working with us Our people bring their diverse backgrounds and unique perspectives to build a respectful, inclusive, and flexible workplace with flexible work locations. We’re looking for people who truly live our values: Care, Courage and Commitment and we’ll offer you great opportunities to develop your career with us. If you're ready to be part of a forward-thinking company that values innovation, teamwork, and security, apply now and help shape the future of fintech with us! If you're already part of the Commonwealth Bank Group (including Bankwest, x15ventures), you'll need to apply through Sidekick to submit a valid application. We’re keen to support you with the next step in your career. We're aware of some accessibility issues on this site, particularly for screen reader users. We want to make finding your dream job as easy as possible, so if you require additional support please contact HR Direct on 1800 989 696. Advertising End Date: 27/12/2025