This role is based out of our London 🇬🇧 or Amsterdam office 🇳🇱

We are an office-first company & believe great products are made when we are together.

Stacks is hiring a Growth Hacker for Inbound Marketing to own and scale our demand engine, driving qualified demo requests from Heads of Accounting, VPs of Finance, and Controllers at enterprise finance teams through paid channels, organic content, ABM, and coordinated product launch campaigns.

About Stacks

At Stacks, we’re transforming the way finance teams approach one of their most critical processes: the monthly close. For mid to large enterprises, the close is a painstaking, manual effort that pulls finance teams away from strategic initiatives to focus on repetitive, tedious tasks. We believe this needs to change.

Our vision is bold. With the power of AI, we’re reimagining the monthly close to be as simple as a single click, providing the most accurate, detailed financial insights on day one of each month. By giving finance teams their time back, we enable them to focus on high-impact, strategic work that drives their companies forward.

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. Based in the heart of Amsterdam, our office offers inspiring views over the iconic canals. Backed by leading VCs and executives from Stripe, Plaid, and OpenAI, we’re ready to reshape the future of finance.

About the Role

Stacks is hiring a metrics-obsessed inbound growth operator to own our top-of-funnel and transform how Heads of Accounting, VPs of Finance, and Controllers at enterprise finance teams find us.

You are not a traditional marketer. You track CAC, CPL, and conversion rates by channel, persona, and creative variant as a baseline habit. You maintain a test log. You know your current cost per SQL and whether it's trending in the right direction. When a campaign underperforms, you have a hypothesis before you have an opinion. You use AI agents as a core part of your operating system, not a novelty.

Your job is to find the winning combination of message, creative, audience and channel across paid, organic, ABM, and website CRO, and keep iterating until the numbers compound.

🧱 What You'll Do

Engineer inbound growth loops, not campaigns.

Move beyond one-off launches. Build self-sustaining acquisition systems: paid loops that get more efficient over time, organic loops that compound, ABM sequences that create air cover before Sales makes contact. Own the architecture, not just the execution.

Run structured experiments. Every week, without fail.

Every test gets a hypothesis, a setup, a result, and a decision. You will design and ship A/B and multivariate tests across ad copy, creative formats, audience segments, landing pages, and CTAs on a weekly cadence. Good experiment today beats perfect experiment next month.

Engineer content for search capture, not just quality.

Every piece of content has a target keyword cluster, a distribution plan, and a conversion path to a demo request. You measure organic traffic-to-lead conversion by page, identify what ranks but doesn't convert, and fix it.

Own website CRO as a primary deliverable.

Your goal is to double and triple our website CR exceeding the industry benchmark. You will run a continuous CRO programme with heatmaps, session recordings, funnel drop-off analysis, A/B tests. You will build the evidence base that earns every change you ship.

Build and test lead capture mechanisms.

Design and run experiments to find what pulls finance practitioners in before they're ready for a demo: interactive tools, calculators, benchmarking reports, gated frameworks. The metric is sign-up-to-demo conversion, not downloads. Kill what doesn't convert. Scale what does.

Treat the funnel like a science experiment.

Own the analytics stack from end to end: UTM taxonomy, GA4, attribution, and a weekly dashboard from ad spend to pipeline. Use BI tools, SQL or Python to self-serve your own analysis. When you don't know why a metric moved, you investigate rather than guess.

Run ABM plays with Sales, not for Sales.

Partner with the SDR and AE team to build and execute account-specific plays: digital air cover, targeted content, high-intent signal sharing. Know which target accounts are warming up before Sales does, and make sure they know too.

🧩 What You Need

• 3–5 years in high-growth B2B SaaS or fintech. Ideally you have seen a company scale from early to mid-stage and know what 'we need more inbound' actually means at that inflection point.

• You are biased toward action. You would rather launch a good experiment today than a perfect one next month. Your test log is evidence of this.

• You can vibe-code. AI agents are a core part of your daily toolkit. You use them to move 5x faster on copy, analysis, creative variation, and reporting automation.

• You are fluent in growth metrics. CAC, CPL, LTV:CAC, statistical significance, conversion rate by funnel stage. You can sanity-check a number in your head and know when something is directionally meaningful versus noise.

• You have run paid acquisition independently: LinkedIn Ads and/or Google Search. You can show results, not just activity.

• You have done website CRO: A/B tests, heatmaps, session recordings, funnel analysis. You know what a good CRO hypothesis looks like and how to call a test early when the data is clear.

🚀 What’s in It for You

• Cutting-Edge Technology: Work at the forefront of the Gen AI revolution.

• Top-Tier Team: Collaborate with talented colleagues from companies like Uber, Plaid, Miro, and Mollie.

• Foundational Role: Become one of the founding pillars of an exciting company, backed by Tier 1 VCs and executives from OpenAI, Stripe, and DeepMind.

🤝 The Hiring Process

• Step 1: 45-minute screening call with Irina (Founding Marketing) to discuss your background, growth approach, and motivation.

• Step 2: 45-minute conversation with Farid (COO) to dive deeper into your commercial thinking and analytical rigour.

• Step 3: Take-home exercise and 1-hour on-site panel interview with Irina, Farid, and Koen.

• Step 4: Final chat with Albert (Founder).

• Step 5: Offer!