Senior Software Engineer - B2B

Welcome to the Agentic Commerce Era. At Commerce, our mission is to empower businesses to innovate, grow, and thrive with our open, AI driven commerce ecosystem.

What You'll Do

• Build high quality front end features using React and TypeScript, with a focus on clarity, performance, and maintainability.
• Refactor legacy or complex areas of the codebase to improve readability, testability, and long term health.
• Identify and fix issues across the stack, from front end behavior to API calls, ensuring solutions are robust and scalable.
• Collaborate closely with product managers, designers, and other engineers to define requirements, refine stories, and deliver predictable outcomes.
• Provide thoughtful code reviews, offer technical guidance to less experienced engineers, and contribute to a culture of continuous improvement.
• Help shape the technical direction of the team through practical suggestions, hands on implementation, and identifying opportunities to reduce friction or complexity.
• Contribute to improving our front end developer experience, including building tools, testing practices, and performance optimisations.
• Ensure technical decisions support our goals of quality, performance, reliability, and security.

Who You Are

• You have at least 4 years of hands on experience building front end applications with React and TypeScript, and you've worked on complex or long lived codebases.
• Preferred minimum Bachelor's degree in CS, EE, SW, CE, MIS; or equivalent experience.
• You write maintainable, well tested code and care about leaving things better than you found them.
• You're comfortable working in existing systems as much as building new ones, and you enjoy simplifying code, refactoring, and untangling complexity.
• You're a clear communicator who can explain technical details and trade offs to both engineers and non engineers.
• You take ownership of outcomes, follow through on commitments, and hold yourself to a high standard of reliability.
• You enjoy mentoring and supporting others, and you contribute positively to the team's culture and technical growth.
• You stay up to date with modern tools and approaches without being dogmatic. Your goal is to find the right solution, not the trendiest one.
• You're proactive, curious, and comfortable working independently when needed while still being a strong collaborator.

Work Where You Thrive

For candidates based in the Sydney Metro area, this role follows a hybrid work model, with three days per week in the office to balance focused individual work and meaningful in person collaboration. GC1 REMOTE

Inclusion and Belonging

At Commerce, we believe that celebrating the unique histories, perspectives and abilities of every employee makes a difference for our company, our customers and our community. We are an equal opportunity employer and the inclusive atmosphere we build together will make room for every person to contribute, grow and thrive.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the interview process, to perform essential job functions and to receive other benefits and privileges of employment. If you need an accommodation in order to interview at Commerce, please let us know during any of your interactions with our recruiting team.

Learn More

Learn more about the Commerce team, culture and benefits at

Protect Yourself Against Hiring Scams

Our Corporate Disclaimer: Commerce does not offer jobs to individuals who do not go through our formal hiring process. Commerce will never require payment of recruitment fees from candidates; request personally identifiable information through unsanctioned websites or applications; attempt to solicit money from you as part of the hiring process or as part of an employment offer; solicit money to complete visa requirements as part of a job offer. If you receive unsolicited offers of employment from Commerce, we urge you to be extremely cautious and avoid engaging or responding.