Senior Data Scientist

Details

Pitch: Amsterdam area
Availability: 40 hours per week
Employment: Projectdetachering
Amber Schilling

Amber Schilling

Account Manager (Analysis Design)

An AI model that determines the best next step for millions of customers — in real time. Personalized service, offers, and content — across all channels. That’s the core of this project with a leading player in the telecom sector. And you? You’ll be the expert who keeps this model running, improves it, and drives it forward.

Sound like a big responsibility? It is. But you’re not alone. You’ll lead a small team, work with a modern tech stack, and have real space to bring innovation to life.

Where will you be working?

WannaFlex is your go-to partner if you're an IT professional who takes their craft seriously but also values freedom — in how, where, and with whom you work. We offer assignments that match your expertise, with clear terms and a people-first approach. For this project, you’ll be working through us at a telecom market leader with a mature AI organization.

You’ll be part of an innovative team making real impact — with solutions that are used daily, not shelved.

You’ll be hired through an interim contract via WannaFlex, and we’ll fully support you throughout the process.

What are your core tasks?

You’ll be responsible for the reinforcement learning model powering all personalization campaigns in the consumer domain. Without this model: no campaigns, no service, no relevance. Your role is critical.

You’ll keep the model running, troubleshoot data pipeline issues, and strengthen its reliability. Meanwhile, you’ll take it to the next level — moving from group-based to fully individualized personalization. You’ll work closely with a data analyst, ML engineer, and a junior team member. You’ll be the technical lead in this team.

The project takes place within a dedicated AI team based in Amsterdam. Around ten professionals work here, with multiple strategic use cases running in parallel — and this is the largest and most impactful one.

What are we looking for?

You’re analytically sharp and technically solid — but also able to connect people, pitch ideas, and lead a team. That unique mix is what makes you right for this role.

  • You have extensive experience as a data scientist in complex, data-driven environments.
  • You’re experienced in MLOps and debugging production models.
  • You have hands-on knowledge of reinforcement learning and personalization use cases.
  • You’re confident working with both tech teams and business stakeholders.
  • You’re fluent in English (Dutch is a bonus).

What do we offer?

A role where your expertise truly makes a difference.

Plus:

  • Start date: September 29, 2025. Duration: through April 2026, with possible extension.
  • Hybrid work: Tuesdays and Thursdays in the Amsterdam office, other days optional.
  • Plenty of freedom and trust in your expertise.
  • Collaboration in a smart and innovative team.
  • Opportunity to help shape AI solutions used daily by millions of customers.

Still have questions?

Want to be part of a strategically important AI project where your skills really count? Don’t wait. Send your CV (motivation letter optional) to [email protected] or call Amber Schilling on +31 (0)6 26 212 597.