Senior Software Engineer, x15ventures

Overview

Senior Software Engineer with knowledge and a broad range of concepts, technology, and domain insights to develop and deliver world-class software solutions. You will build software and provide technical tooling and advice that enables our ventures to operate safely and at speed within a regulated environment. Collaboration across product, design, QA, and multiple stakeholder groups is essential.

Responsibilities

• Design, develop, and maintain scalable web applications using React, Node.js, and TypeScript.
• Partner with product, design, and QA to ship high-quality features that solve real user problems.
• Participate in code reviews, technical planning, and architecture discussions.
• Contribute to and uphold engineering best practices around code quality, testing, CI/CD, and observability.
• Lead by example in identifying and resolving technical debt, improving performance, and increasing system reliability.
• Mentor and support junior and mid-level engineers.
• Own features from discovery through to delivery and ongoing support.
• Champion engineering excellence by advocating for best practices across a broad engineering community.

Qualifications

• 5+ years of programming and software development experience. Proficiency in TypeScript and Node.js.
• Proven experience building modern front-end experiences using Next/Remix, React, etc.
• Familiarity with relational databases (e.g., PostgreSQL) and use of ORMs (e.g., Prisma or TypeORM).
• Solid experience writing automated tests with tools such as Jest, React Testing Library, and Playwright.
• Experience in cloud-based environments (e.g., AWS, Azure) and using CI/CD tooling (e.g., Docker, GitHub Actions).
• Experience in UX/UI design is preferred.
• Knowledge of web security and applying security practices in web applications.
• Demonstrated ability to take ownership beyond functional requirements to ensure system stability, resilience, and technical quality.

What's in it for you?

• Opportunity to join x15 and access career paths not typically available in standalone corporate or startup roles.
• Collaborative team environment with exposure to early-stage startups, mature ventures, and Australia's leading bank.
• Generous perks including staff discounts on brands and financial products.
• Flexible work arrangements to fit your lifestyle.
• Space to innovate and create without fear by operating between corporate and startup cultures.
• Diverse community of talented individuals who exemplify the x15 values.
• Access to a broad engineering community and potential to work across ventures and the bank in the future.

If you're already part of the Commonwealth Bank Group, apply through Sidekick to submit a valid application. We're committed to accessibility and supporting candidates who require assistance; please contact HR Direct at for additional support.

Advertising End Date: 29/07/2026