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. As the parent company of BigCommerce, Feedonomics, and Makeswift, we connect the tools and systems that power growth, enabling businesses to unlock the full potential of their data, deliver seamless and personalized experiences across every channel, and adapt swiftly to an ever changing market.

Overview

The Commerce B2B Engineering team builds the systems that allow BigCommerce merchants to run real world B2B businesses-handling complex buyers, pricing, workflows, and scale that standard ecommerce platforms don't support. We work closely with engineering teams across multiple domains, product managers, designers, business stakeholders, and external partners to build a platform that is secure, reliable, and easy to extend.

Responsibilities

• 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.

Qualifications

• At least 4 years of hands on experience building front end applications with React and TypeScript.
• Education: Preferred minimum bachelor's degree in CS, EE, SW, CE, MIS; or equivalent experience.
• Write maintainable, well tested code and care about leaving things better than you found them.
• Comfortable working in existing systems as well as building new ones, and enjoy simplifying code, refactoring, and untangling complexity.
• Clear communicator who can explain technical details and trade offs to both engineers and non engineers.
• Take ownership of outcomes, follow through on commitments, and hold yourself to a high standard of reliability.
• Mentor and support others, and contribute positively to the team's culture and technical growth.
• Stay up to date with modern tools and approaches without being dogmatic; goal is to find the right solution, not the trendiest one.
• Proactive, curious, and comfortable working independently when needed while still being a strong collaborator.

Work Location

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.

Inclusion & Belonging

At Commerce, we believe that celebrating the unique histories, perspectives, and abilities of every employee makes a difference for our company, customers, and 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 provide reasonable accommodation to individuals with disabilities to participate in the interview process and perform essential job functions.