Customer Data Scientist

Hello and welcome to start your next journey with Sellforte!

We are on a mission to help retailers and consumer brands accelerate their growth by making smarter data-driven marketing decisions. From day one Sellforte has been inherently a data science company. Our product is built on advanced modelling instead of vanity metrics. Since 2017 we have delivered a state-of-the-art Marketing Mix Modelling (MMM) solution that helps marketing teams and agencies evaluate and improve the effectiveness of their marketing and promotional activities.

We are now entering a new phase of growth. Our customer base is expanding internationally and at the same time we are scaling our product to support new use cases beyond traditional MMM. This includes moving toward more granular optimisation broader decision-making support and increasingly automated and intelligent marketing workflows as well as tighter integration of causal experimentation to continuously validate and improve decisions.

This growth brings both opportunities and challenges. As we expand we need to continuously improve how our product works in real-world situations how we deliver value to customers and how we scale our ways of working. For the people joining us this creates a unique opportunity to learn fast take responsibility and have a direct impact on how the company and product evolve.

Why were hiring

Sellforte is growing fast and we are scaling how we deliver value to customers while maintaining a high level of quality.

Our product is essentially a data and modelling pipeline that sits at the core of every customer engagement. Data Scientists play a key role in making that pipeline work in real-world situations. At the same time they are the people who best understand how the product should evolve because they see daily what works what breaks and what creates value.

The role is evolving quickly. With modern AI tools such as Claude Code and Codex many parts of the work can be automated or accelerated more easily than before. This allows our Data Scientists to focus more on solving real customer problems and improving how the service operates end-to-end.

What you will do as a Customer Data Scientist

Your main responsibility is to ensure that our customers get clear reliable value from the Sellforte service.

You will work closely with customer data modelling pipelines and stakeholders to make sure everything runs smoothly and produces actionable insights.

In practice you will:

• Work directly with customers to solve business problems using data and modelling

• Conduct exploratory data analysis to understand customer data and identify issues or opportunities

• Onboard new customers by setting up data pipelines configuring models and ensuring a smooth launch overall

• Ensure that modelling and product pipelines run reliably and produce high-quality outputs

• Validate results forecasts and recommendations before they are delivered to customers

• Participate in customer meetings and communicate technical topics in a clear and practical way

A key part of the role is also improving how the product works through real usage. You will:

• Identify recurring issues or inefficiencies in delivery and turn them into improvements

• Automate workflows and reduce manual work using modern AI tools

• Contribute to product and pipeline development based on real customer needs

• Work closely with other Data Scientists to develop and refine models including Bayesian time-series models

What we hope from you

• Relevant experience as a Data Scientist Analytics Consultant or similar role where you have worked with real business data

• Strong communication skills in English and the ability to explain complex topics clearly

• A structured and reliable way of working especially when handling customer-facing deliverables

• A proactive mindset and willingness to take ownership of both problems and outcomes

• Hands-on technical skills especially in Python and common data tools

• Interest in improving workflows and using AI tools in practice

• Willingness to work across customer delivery and continuous improvement of the product

• Location in the Helsinki/Espoo region or willingness to relocate. We offer relocation support to Finland. For GDPR and contractual reasons the role must be performed from within Europe.

What Sellforte offers

• An open easy-going startup/scaleup environment with genuinely nice colleagues and a shared ambition to build something great.

• A truly international team. 10 nationalities across multiple countries bringing diverse perspectives and a global mindset.

• A globally unique product built with modern technologies giving you the chance to work with a cutting-edge data science and engineering stack.

• A low hierarchy and an enjoyable ride. We value kindness collaboration and finding that extra spark of fun that makes the journey meaningful. Sellforteans are warm-hearted people who enjoy delivering impact and growing the business together.

• Opportunities for both technical and business growth. We actively foster a strong product and data science culture through regular demos knowledge sharing and internal presentations.

• Flexibility to find the worklife balance that suits you. We understand that nine-to-five doesnt work for everyone. While our culture supports both remote and in-office work we do prefer that you spend at least part of your week at the office to collaborate connect and build things together especially at the start. Many of us enjoy the energy of working on-site though we still offer flexibility for remote work when needed and your preferences are always taken into account.

• Starting salary for Medior level: per month.

• A wide range of benefits including healthcare lunch and activity benefits five weeks of paid holiday from day one phone and equipment an options program and home care services for sick children.

How to apply

If this sounds like the right next step for you we would love to hear from you.

We review applications and start interviews continuously so we encourage you to apply as soon as possible. We may move forward with candidates already during the application period.

Our recruitment process is designed to be transparent collaborative and meaningful. It typically includes:

• A 30-minute intro call with a Sellforte Data Scientist

• One or two interview sessions including a conversational interview and a more hands-on technical data science case exercise with some smaller problem-solving tasks

• Opportunities to meet members of your potential future team

We aim to get back to candidates as quickly as possible typically within the same or the following week.

Application deadline: May 31

If you have any questions about the role feel free to reach out.