Senior Software Engineer

Join to apply for the Senior Software Engineer role at PartPay - Acquired by Zip (ASX:ZIP) Full stack experience in .NetCore 7/8 and frontend technologies like React and Next.js. 60% BE 40% FE. Join a collaborative team that values technical excellence and focuses on delivering seamless, secure checkout experiences for millions of customers. Work flexibly, with hybrid team connect days in our Sydney or Melbourne office locations. Write your story with a career at Zip. Join Zip’s Technology function, responsible for building and maintaining seamless, secure, and sustainable platforms that enable customers to shop with confidence and merchant partners to grow their brands. As part of the Checkout squad, you’ll own the integration and evolution of our Checkout product used across over 40,000 ANZ merchant websites. Focused on both the front and backend of the checkout, the team uses modern tech to solve interesting challenges at pace, accountable for the technology that enables millions of customers to transact with Zip. What You’ll Own Design, build, and maintain high-performance APIs and microservices for Zip’s checkout experiences. Collaborate with Product and Engineering peers to define solutions that balance long-term scalability with short-term business outcomes. Take ownership of technical delivery within your squad, contributing to architecture and driving quality. Contribute to improving integration patterns, developer experience, and system observability across the Checkouts ecosystem. Mentor engineers within the squad, sharing knowledge and promoting engineering best practice. What You’ll Bring To The Team Hands on engineering experience building scalable systems in a commercial environment. Solid experience in .NET Core (C#) and modern frontend frameworks like React/Next.js. Strong experience developing microservices and cloud-native solutions on AWS (Kubernetes, Docker). Strong experience in API design, integration patterns, and application performance monitoring (APM). A mindset that embraces AI and new tools to adapt, learn, and grow. An aptitude for identifying and managing risks. We are all leaders at Zip, and effective risk management is part of all our roles. Our values in your DNA: Customer First, Own It, Stronger Together, and Change the Game. What You’ll Get In Return 25 days paid leave annually, including birthday leave and quarterly wellbeing days. 16 weeks paid parental leave for primary carers, and 4 weeks for supporting carers. Family support policies including miscarriage bereavement leave and domestic violence leave. Mental health and wellness initiatives, including $299 annual wellbeing allowance, free access for you and family members to our Wellbeing platform Sonder, discounted private health insurance, and great rates on fitness sessions through Class Pass. 2 days paid volunteering leave, 2 days study leave and 2 days religious or cultural leave per year. Fee‑free Zip products, and discounts with Zip merchant partners (AU). Team social events, epic offices, free breakfast daily, and weekly free lunches (Sydney and Melbourne). Be a part of a team that reflects the diversity of our customers We pride ourselves on being a workplace that provides equal opportunities to people of all ages, cultural backgrounds, sexual orientations, gender identities, abilities, veteran status, and everything else that makes you unique. Equally, we’re committed to ensuring our recruitment processes are accessible and inclusive. Please let us know if there are any adjustments that need to be made to ensure you have a fair and equitable experience. And finally…get to know us Zip Co Limited (ASX: ZIP) is a digital financial services company, offering innovative, people‑centred products. Operating in two core markets – Australia and New Zealand (ANZ) and the US, Zip offers access to point‑of‑sale credit and digital payment services, connecting millions of customers with its global network of tens of thousands of merchants. We’re proud to be a values‑led business and our values – Customer First, Own It, Stronger Together and Change the Game – guide us in everything we do. Seniority level Mid‑Senior level Employment type Full‑time Job function Engineering and Information Technology Referrals increase your chances of interviewing at PartPay – Acquired by Zip (ASX:ZIP) by 2x Get notified about new Senior Software Engineer jobs in Sydney, New South Wales, Australia . #J-18808-Ljbffr