Platform Engineer

Who Is Lumi? We’re a leading Fintech small business lender fuelling growth by making finance more accessible. We deliver fast and flexible funding designed to meet the unique needs of Australian businesses. With over $1.5 billion funded since 2018 and backing for 15,000+ small businesses, we're trusted for our speed, high quality service, and tailored approach . Working At Lumi We are building a culture where you can grow and make a difference for customers. We are looking for people to join us on this journey who are passionate, curious and great problem-solvers. We are incredibly proud of our awards, including most recently our Deputy CEO, Anna Hawter, receiving the Finnies’ 2025 Outstanding FinTech Leader of the Year award. We also ranked in the top #3 on the 2024 Australian Financial Review BOSS Best Places to Work Banking, Superannuation and Financial Services list, 2023 Best Workplace Diversity Award by FinTech Australia and the 2022 Empowering Innovation Affie Award . We also ranked #36 among the fastest-growing technology companies in Australia in the 2022 Deloitte Technology Fast 50 Australia. We foster a workplace where everyone feels a sense of respect and can reach their full potential. If you need any adjustments for a fair recruitment process, please let us know when applying. Our Values Egos at the door We own. We don’t judge. We don’t blame. We are open. We are in this together. See the customer We show up. We understand. We anticipate. We do what we say. We genuinely focus on solutions. Think lean We make things simple. We are resourceful. We understand the problem. We think ahead. Learn to grow We are curious. We challenge. We try. We fail forward. We learn. We try again. The Role As a platform Engineer, you will bridge the gap between software development and infrastructure system operations to ensure the reliability, performance, and scalability of our engineering platforms. This is a highly technical, hands-on role where you will focus on building out our infrastructure, refining CI/CD pipelines, and establishing robust monitoring systems to support our fast-paced deployments. You will play a crucial part in optimizing our databases and supporting our modern event-driven architecture, enabling our engineering teams to deliver high-quality software efficiently and securely. Additionally, we are in the early stages of an exciting journey to build MLOps and agentic infrastructures. This role presents an excellent opportunity to learn and actively participate in building and scaling production-level AI infrastructure and agents. This Person Is Someone With… Strong software development background, with at least 3years of experience in hybrid Software Engineering and DevOps or Site Reliability Engineering (SRE) roles. Proficiency in TypeScript and React, alongside a strong familiarity with modern event-driven microservice architectures. At least 1 year of hands-on experience building CI/CD pipelines and creating comprehensive infrastructure monitoring systems. Hands-on experience in Docker. Kubernetes management experience is highly preferred. Proven experience in database performance monitoring and optimizations, specifically with hands-on expertise in MongoDB and Postgres cluster management query optimization, and performance tuning. Experience with AWS infrastructure as an excellent add-on. An eagerness to learn MLOps principles and a strong desire to help build out new production-level AI infrastructures. Perks & Benefits Wellbeing: Free counselling, seasonal activities, Wellbeing Allowance, wellness room, flu shots Work Life: Home Workspace Allowance, Purchased Leave, Parental Leave, Parental Flex Leave, Lumi Life Leave for challenging events, breastfeeding/expressing space Social & Food: Monthly lunches, regular celebrations, stocked kitchen, beer & kombucha on tap, board games, rooftop BBQs Rewards & Recognition: Competitive pay, referral bonuses, shout-out recognitions Community Support: Paid volunteer leave, celebrations, company volunteer days Career & Growth: Rapid advancement opportunities, higher education sponsorship, hackathons