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 and Lidl, 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 in the DACH area. 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 (m/f/d), 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.

Location

Unlike most of our roles, this role can be based in either Finland or Germany, where we have a subsidiary:

• In Finland, the position follows our hybrid working model: employees may work remotely or from the office, and in-office presence may be preferred or required at times (for example during onboarding, important meetings, or close-collaboration projects).
• In Germany, the position is offered as mobile work, meaning the employee may work from home or another suitable location. Occasional visits to our office in Finland (for example for onboarding or key meetings) may be required.
• In both countries, we primarily serve our customers remotely, though occasional travel to customer locations (both within the country and abroad) may be necessary in some cases.

Relocation support to Finland may be available on a case-by-case basis (read more here). Relocation support to Germany is currently not provided.

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 both English and German is required; additional languages (especially French or Spanish) are a plus

What we offer

• A globally unique product – Contribute to building a one-of-a-kind SaaS platform for marketing measurement, used by leading retailers and eCommerce companies to make smarter, data-driven decisions.
• An interdisciplinary, international team – Join colleagues from more than eight nationalities across three countries, combining expertise in data science, engineering, business, and more.
• Low hierarchy, high trust – Work in a flat organization where ownership, transparency, and collaboration are part of everyday life. We value initiative and make sure work stays enjoyable along the way.
• Salary and bonus

  • Junior/Medior level: €3,800–5,000 per month + 10% OTE bonus based on customer KPIs

  • Senior level: €4,500–6,000 per month + a tailored bonus program based on experience and performance targets

• A wide range of benefits – In Finland, this includes full paid holidays from the start (five weeks per year, prorated), occupational healthcare through Heltti, a 25% subsidized lunch benefit, phone and work equipment, stock options, and home care services for sick children. In Germany, the benefits may differ due to local legislation and the possibilities to offer them, and are subject to negotiation. 

Diversity & inclusion

Sellforte is committed to fostering diversity, equity, and inclusion in everything we do. We welcome candidates of all backgrounds and identities, including all genders, ages, ethnicities, nationalities, religions, sexual orientations, gender identities or expressions, marital statuses, and abilities. If you need accommodations or accessibility support during the recruitment process, please let us know when applying—we will ensure the process works smoothly for you.

How to apply

If this role sounds like the right next step for you, we’d love to get to know you.

Please apply as soon as possible and no later than December 21, 2025. We review applications on a rolling basis, and you may hear from us even before the deadline. Due to the volume of applications we usually get, we may not be able to respond to each applicant individually.

During the recruitment process, you’ll meet your future team members and have the chance to explore our product in more detail. The process typically includes an introductory call, a meeting with the Team Lead and other team members, and a case interview. 

If you’d like more information about the position, please contact Mari Leväjärvi, Head of Customer Success, Enterprise (mari@sellforte.com).

We look forward to hearing from you!