Data Scientist

Basic-Fit; Hoofddorp; Hybrid; EUR 39,000 - 59,000; Full time

Benefits offered by this job

GoodHabitz and LinkedIn Learning

Travel allowance

Bike plan

Health insurance discounts

Remote work allowance

Gym access

Job summary

Basic-Fit is seeking a Data Scientist to turn business questions into data-driven solutions and to deliver end-to-end data products. You will join a multidisciplinary Data Platform Team and collaborate with stakeholders to move ideas from concept to production.

You will design and deploy predictive models on Databricks, run experiments and explore AI/LLMs to add value across operations, marketing and finance.

Qualifications

• Bachelor or Master degree in Mathematics, Computer Science, Econometrics or a related field.
• 3+ years of relevant work experience in data science.
• Strong knowledge of machine learning algorithms, frameworks and packages, and experience taking models from idea to production.
• Experience developing models across different domains (operations, marketing, finance), and the flexibility to quickly get up to speed in a new business area.
• Strong skills in Python and SQL, and hands-on experience with Databricks and Spark (PySpark) for large-scale data.
• Proven experience with MLOps practices, such as experiment tracking, model deployment and monitoring (e.g. MLflow).
• Solid knowledge of statistics: hypothesis testing, experimentation, regression, etc.
• Excellent communication skills in English, able to explain complex results to non-technical audiences.
• Experience with AI, such as working with LLMs and building agents, is a plus.

Responsibilities

• Turn business questions into data science solutions with stakeholders.
• Design, develop and deploy predictive models on the Databricks platform across multiple domains.
• Set up experiments and A/B tests to measure real impact.
• Explore how AI, LLMs and agents can create new value and improve workflows.
• Present results to stakeholders to support better decisions.
• Collaborate with Data Platform Engineers, Analysts and BI Developers to bring solutions into production.
• Increase data literacy and demystify data science across the business.

Skills

Python

SQL

Databricks

Spark

MLflow

MLOps

Machine learning

Statistics

English communication

LLMs

Education

Bachelor/Master in Mathematics, CS, Econometrics or related field

Tools

Databricks

Spark

MLflow

Job description

Turn data into decisions for millions of members

You don’t want to just build models.

You want your insights to be used, trusted, and acted upon.

You want to see decisions being made because of what you built.

At Basic-Fit, your data solutions support millions of members across Europe. Operations, marketing, finance and more will use what you build to make better decisions and to make our member interactions more relevant.

This Is What Your Role Looks Like

You’ll join the Data Platform Team and work side by side with the business to turn their questions into data-driven solutions. You’ll be involved in the entire lifecycle of a solution: from ideation and proof of concept to rollout and post-launch performance tracking.

In a Typical Week, You Might

• explore our data together with stakeholders and translate business questions into data science solutions
• design, develop and deploy predictive models on our Databricks platform, across a variety of domains such as operations, marketing and finance
• set up experiments and A/B tests to measure the real impact of your solutions
• explore how AI, LLMs and agents can create new value and improve how we work
• present your results to stakeholders in a way that supports better decision making
• collaborate with Data Platform Engineers, Analysts and BI Developers to bring solutions into production
• increase data literacy and demystify data science across the business

Good ideas don’t stay in slide decks here - they get built.

The team you’ll work with

You’ll be part of a multidisciplinary Data Platform Team with:

• Data Platform Engineers
• Analysts
• BI Developers
• Data Scientists

Together, you support almost every department at Basic-Fit, enabling teams to act on reliable, well-governed data.

Who Are You?

Skills

• Bachelor or Master degree in Mathematics, Computer Science, Econometrics or a related field
• 3+ years of relevant work experience in data science
• Strong knowledge of machine learning algorithms, frameworks and packages, and experience taking models from idea to production
• Experience developing models across different domains (e.g. operations, marketing, finance), and the flexibility to quickly get up to speed in a new business area
• Strong skills in Python and SQL, and hands‑on experience with Databricks and Spark (PySpark) for large-scale data
• Proven experience with MLOps practices, such as experiment tracking, model deployment and monitoring (e.g. MLflow)
• Solid knowledge of statistics: hypothesis testing, experimentation, regression, etc.
• Excellent communication skills in English, able to explain complex results to non-technical audiences
• Experience with AI, such as working with LLMs and building agents, is a plus

How We Work Together

The Data Platform Product Owner is responsible for stakeholder engagement, hiring decisions, and the longer‑term roadmap. Once priorities are set, you and the PO work closely together to break the roadmap down into manageable steps and drive delivery. You’ll work directly with Data Engineers, BI Developers, Data Scientists, and Data Analysts, being both a technical anchor and a delivery driver for the team.

What We Offer You

At Basic-Fit, it’s not just about work, it’s about your growth. As a Data Scientist, you’ll have the freedom to make an impact and develop yourself in a dynamic environment.

What You Can Expect From Us

• Learning & Development: Unlimited access to GoodHabitz and LinkedIn Learning.
• Career Growth: Plenty of opportunities for professional and personal development.
• Work Culture: An informal, international, and down‑to‑earth environment. We value working together, so we work 4 days in the office, 1 day from home.
• Innovation: Your ideas contribute to strategic projects.
• Salary: A monthly gross salary between €3.500 and €5.300 based on 40 hours, depending on your experience and background.
• Perks & Benefits: Travel allowance, bike plan, health insurance discounts, remote work allowance.
• Fitness: Access to our gym at HQ.

About Basic-Fit

Basic-Fit is Europe’s leader in the value‑for‑money fitness market, with more than 4.7 million members across 1,650+ clubs in 6 countries. We are continuously growing and improving. If you're looking for a place where you can make an impact while having fun at work, you've come to the right place!

What Makes Us Unique?

• Work with Impact: What you do makes a difference. We don’t just work for our members, partners, and teams—we work with them.
• Collaboration: Everyone works together to achieve goals and celebrate success.
• Diversity & Inclusion: We welcome everyone into our workplace.

Questions? Feel free to contact Yara at [e-mail].