Customer Success Manager - Accounting

This role is based out of our Amsterdam office 🇳🇱 or London office 🇬🇧 We are an office-first company & believe great products are made when we are together. 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. 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, 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 fiercely ambitious, entrepreneurial, and commercially driven Customer Success Manager - Accounting, to join our team as one of our first CS hires. In this high-impact role, you’ll contribute to create and execute our GTM strategy at Stacks. If you’re excited by the idea of limitless growth and fast-paced challenges, this is a unique opportunity to accelerate your career as you help shape the future of Stacks. 🧱 WHAT YOU'LL DO - Drive Customer Success: Support the full customer journey from onboarding to renewal and expansion. You’ll interact directly with Controllers, Finance leaders, and CFOs to ensure Stacks becomes mission-critical to their accounting operations. - Accounting-Led Support: Leverage your Accounting / Controller background to deeply understand customer workflows and challenges. You’ll offer guidance rooted in your financial close experience, helping customers maximize the value of Stacks. - Drive Net Retention: You will own renewals and expansion across your portfolio by delivering measurable value and identifying opportunities for deeper adoption. - Product Mastery: Become a power user of Stacks, able to guide customers through best practices, troubleshoot issues, and ensure seamless implementation. - Cross-functional Collaboration: Partner with Sales, Product, and Engineering to translate feedback into actionable improvements that address the needs of accounting teams. - Strategic Impact: As one of our first CS hires, you’ll help define the function from the ground up, building playbooks and influencing our GTM strategy. 🧩 WHAT YOU NEED - 3–7 Years of SaaS Customer Success Experience: A strong track record managing post-sales relationships with mid-market and enterprise clients. You’ve owned renewals, driven expansion, and worked cross-functionally to deliver success. - Accounting Expertise: Hands-on experience in accounting, ideally as a Controller, /ACA/ACCA, or within a finance team managing the close process. You speak the language of Stacks users and understand their day-to-day challenges. - Customer-Centric Mindset: You know how to build trust with finance teams, navigate and deliver strategic support. - Product Mastery: You’re quick to learn new tools and can confidently guide others through them. You can break down complex workflows into actionable steps for our customers.. 🚀 WHAT’S IN IT FOR YOU - Foundational role: Help shape a category-defining company from an early stage, working directly with founders and a small, high-agency team. - Meaningful ownership: Competitive equity in a company scaling rapidly towards $10m ARR, where your impact will directly shape the outcome. - Cutting-edge pr...