(Senior) Customer Success Manager, Marketing Analytics

About Sellforte

Sellforte is a Finnish SaaS company helping businesses make smarter, data-driven marketing decisions. Our platform turns sales and marketing data into actionable insights through Marketing Mix Modeling (MMM), measuring the real impact of marketing across all channels, including those traditional attribution models often miss, such as TV, print, and in-store promotions.

With Sellforte, companies can continuously see how their marketing investments and promotions perform and where to allocate budgets for maximum return. It’s a scalable, automated, and always-on solution that replaces fragmented, one-off consulting with a living system for continuous marketing optimization. You can read more about the solution here and see a demo here.

Our customers include leading B2C brands such as C&A, Lidl, and Decathlon, who use Sellforte to connect the dots between campaigns, promotions, and actual business results. In addition, we collaborate with media agencies and key industry partners like Meta and TikTok to advance marketing measurement practices and help customers achieve the best possible outcomes.

Founded in 2017, Sellforte is built and headquartered in Espoo, Finland, on the Aalto University campus at the heart of Finland’s tech and innovation ecosystem. Our international team of about 40 professionals combines expertise in data science, software engineering, and marketing analytics.

Our customer base is growing, especially abroad. To support this growth, we’re looking for a Customer Success Manager to help with our expanding client base and ensure our customers get the most out of Sellforte’s solution.

The role

As a (Senior) Customer Success Manager, you’ll be the main point of contact between the customer and our team, making sure everything runs smoothly and that the customer sees real, measurable impact from our solution.

Your work will include:

• Leading onboarding projects by managing timelines, coordinating data connections, and aligning internal and customer teams to deliver the first results efficiently

• Acting as the main point of contact for your customers, ensuring smooth communication, resolving issues, and maintaining strong relationships throughout the partnership

• Ensuring seamless ongoing service by coordinating data deliveries, monitoring result updates, and ensuring analyses and insights are delivered on time

• Helping customers get the most out of Sellforte by meeting regularly with their marketing teams, analyzing performance, and providing actionable, data-driven recommendations for improvement

You’ll typically manage several customer accounts at once—often large, international brands—where your insights can have a direct and measurable impact on how global companies allocate and optimize their marketing investments.

Beyond your day-to-day work, you’ll also contribute to Sellforte’s product and process development, bringing your expertise in marketing, analytics, and customer success to help shape how our service evolves.

We serve our clients mostly remotely from our base in Finland, though occasional travel may be part of the role. We’re primarily looking for someone located here, but relocation support may be provided on a case-by-case basis. You can read more about our relocation assistance here.

What we are looking for

• Expertise in marketing planning – experience in areas such as media-mix planning, campaign planning, marketing consulting, or marketing analytics
• Strong communication and project management skills – ability to coordinate multiple stakeholders, manage timelines, and communicate clearly with both technical and business teams
• Data analytics skills – proficiency in Excel or other data processing tools, strong analytical thinking, and the ability to interpret data and translate it into actionable insights
• Business understanding – ability to grasp the customer’s commercial environment, see the bigger picture, and recommend actions that drive measurable results
• Professional proficiency in English; other languages are a plus

What we offer

• A globally unique product – Contribute to build