Machine Learning Scientist

Salt is currently hiring a Machine Learning Scientist for a client of ours in Amsterdam.

Role is for someone with ZZP/KVK and is paying between 120 and 132 euros per hour.

Job Title: Senior Machine Learning Scientist

Summary

We are looking for a Senior Machine Learning Scientist to design and deploy scalable ML solutions powering advertising products. You will lead end-to-end model development to improve ad relevance, performance, and user experience, working on large-scale data in a cross-functional environment.

Key Responsibilities

• Translate business challenges into ML solutions and define research approaches
• Design, build, and deploy scalable ML models (batch & real-time)
• Own the full ML lifecycle: data exploration, modeling, evaluation, and productionization
• Develop high-quality, reusable code and robust ML pipelines
• Collaborate with Product, Engineering, and Data teams to deliver impactful solutions
• Drive innovation through experimentation and prototyping
• Mentor team members and promote ML best practices
• Ensure data quality, governance, and model performance monitoring

Qualifications

• 6+ years of experience in Machine Learning or related fields
• Advanced degree in Computer Science, Mathematics, Engineering, or similar
• Strong experience in ML techniques (e.g., ranking, recommendation, personalization)
• Hands-on experience with Python, SQL, and Spark
• Experience with deep learning frameworks (e.g., TensorFlow or PyTorch) is a plus
• Proven experience deploying ML models in production
• Strong communication skills in English