StaffProductEngineer

About Stacks Stacks is building an AI-native platform that reinvents how modern finance teams run the monthly close. The opportunity is massive: every growing company depends on accurate, timely financial data, yet most are still operating with tools and workflows built for a different era. In just two years, we’ve grown from a team of 2 to 30+ and are on a rapid trajectory towards $10m ARR. We’ve raised a $23m Series A led by Lightspeed Venture Partners https://stacks.ai/resources/stacks-raises-23-million-to-reinvent-finance-operations-with-agentic-ai, and we were recently recognised as one of Harmonic’s Hottest Startups of 2026 https://harmonic.ai/hot-25-companies/q2-2026. We’re already trusted by leading European scale-ups including Pleo, Freetrade, and Motorway. Our team is a blend of finance, product, and technical experts from top-tier companies like Uber, Plaid, Miro, Meta, Mollie, and Bunq, united by the drive to create a game-changing solution. We’re a team that is deeply customer-obsessed, plays to win, and isn’t afraid to take big, bold bets. We move fast, hold a high bar, and are committed to growing together as we scale. 🔎 About the Role Stacks is looking for a Staff Product Engineer to set the technical standard for how we build. This is not a management role. It is an individual contributor role with outsized influence, where your decisions shape architecture, unblock teams, and define what great looks like across the entire engineering organization. You will work at the intersection of complex technical problems and real customer outcomes. You will be the person others come to when the problem is hard, when the trade-off is unclear, or when the stakes are high. You will define the approach, not just execute it 🧱 What You'll Do - Own the most technically complex and highest-impact problems in the product, end to end, from architectural vision through to production reliability. - Define technical direction across the engineering team: set patterns, e