Senior Machine Learning Scientist – Ads & Recommendation Systems

Rate: €145/hour
Contract: 12 months (possible extensions)
Location: Amsterdam (hybrid, 2 days/week on-site)

We’re partnering with a leading global digital platform to hire a Senior Machine Learning Scientist to join their growing Ads Machine Learning team. This is a unique opportunity to work on large-scale machine learning systems that directly impact how millions of users interact with online content and how partners compete and succeed within a marketplace.

The Role

You’ll be responsible for designing and delivering advanced machine learning solutions that power advertising systems, including bidding, ranking, and recommendation engines.

Working across engineering, product, and commercial teams, you’ll help shape how ads are served—balancing business performance with user experience.

What You’ll Be Doing

Build and deploy ML models that optimise ad performance and relevance
Develop bidding and ranking algorithms for search and recommendation systems
Translate business challenges into scalable technical solutions
Lead end-to-end ML development from concept to production
Collaborate with cross-functional teams to deliver high-impact solutions
Mentor other engineers and contribute to technical best practices

What We’re Looking For

Strong experience in Machine Learning within commercial environments
Background in Ads, Recommender Systems, or E-commerce platforms
Ability to bridge business and technical domains
Experience leading projects or mentoring teams
Proficiency in at least one programming language (Python preferred)
Experience working with large datasets and distributed systems

Apply today for immediate consideration!

Brookwood Recruitment Ltd

Vacatures

Machine Learning Scientist