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, and we were recently recognised as one of Harmonic’s Hottest Startups of 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 product and tech: Work at the intersection of AI and finance, building systems that fundamentally change how companies run their financial close.

• High-calibre team: Collaborate with people from companies like Uber, Plaid, Miro, and Mollie.

• Exceptional workspace: Our London HQ is based in Fora — a modern, design-led space in the heart of the city with access to a gym, classes, and an environment built for focused, in-person building

• Strong team culture: We run regular socials and off-sites that bring the team together properly, we recently have our 2-year anniversary party in Amsterdam, with board games, a tarot card reader and live music 🎶

🤝 The Hiring Process

• Step 1: 30-minute screening call with Lauren (CSM), to discuss your background within customer success and accounting

• Step 2: 45-minute conversation with our team to dive deeper into your commercial experience

• Step 3: Take-home and 1-hour on-site panel interview with our team at Stacks

• Step 4: Founder Chat with Albert (Founder)

• Step 5: Offer!