Data Scientist

Samba; Amsterdam; Hybrid; EUR 70,000 - 90,000; Full time

Job summary

Samba is seeking a data scientist to own end-to-end delivery of significant data science projects with minimal guidance. You are an autonomous contributor with deep expertise in at least one core domain and the range to build production-ready ML solutions using modern AI methods.

You will collaborate closely with product and engineering teams. You’ll design and implement advanced ML workflows, build reusable tools, and drive DataOps and MLOps practices across projects, while mentoring junior

Qualifications

• Bachelor’s degree in statistics, data science, CS, or mathematics, or equivalent experience.
• 2+ years hands-on data science delivering multi-sprint projects independently.
• Advanced Python with production-quality code, testing, and documentation; strong SQL and PySpark.
• Databricks workflows, Delta Lake, job orchestration; working knowledge of AWS or GCP.
• Solid ML core skills (regression, classification, clustering) with MLOps practices.
• Exposure to RAG, LLM-augmented models, vector databases and semantic search.
• Strong communication, teamwork, and ability to mentor junior data scientists.

Responsibilities

• Own end-to-end delivery of significant data science projects, from problem scoping to production deployment.
• Decide and document methodology, model selection, and evaluation with technical solution documents.
• Lead solution design for initiatives, breaking epics into well-scoped user stories with acceptance criteria and DataOps/MLOps practices.
• Build ML workflows including entity resolution, probabilistic record linkage, embedding-based matching, semantic similarity, and LLM-augmented pipelines.
• Develop reusable tools, libraries, and documentation; provide constructive code review feedback.
• Partner with product, engineering, and operations to translate business requirements into technical specs and scalable pipelines.

Skills

Advanced Python

SQL

PySpark

MLOps

Communication

Mentoring

Experiment design

Documentation

Cross-functional collaboration

Data modeling

Education

Bachelor’s degree in Statistics/Data Science/CS/Mathematics

Master’s degree preferred

Tools

Databricks

Delta Lake

AWS

GCP

Vector databases

Job description

Samba connects the advertising industry. Today, a trillion dollars of media flows through platforms that don’t talk to each other, and each one measures its own results. We built the independent alternative: consented first-party data and AI that give the world’s biggest advertisers, publishers, and platforms one clear view across all of it.

The next era of advertising will run on AI agents, and those agents will need data they can trust. We’re building that foundation, and the agents that act on it. Join us and help build what the industry runs on.

About the Role

You own end-to-end delivery of significant data science projects with minimal guidance. You are a reliable, autonomous contributor with deep expertise in at least one of Samba’s core domains, identity and audience modeling, and the technical range to build production-ready solutions using modern machine learning (ML) and AI methods. You work closely with peers, product, and engineering.

What You’ll Do

• Own Delivery: Own end-to-end delivery of significant data science projects, from problem scoping and approach design through to production deployment.
• Decide and Document: Make sound, independent decisions on methodology, model selection, and evaluation, and document them in technical solution documents covering problem statement, approach, metrics, and timeline.
• Lead Solution Design: Lead solution design for your own initiatives, breaking epics into well-scoped user stories with clear acceptance criteria and applying DataOps and MLOps practices such as experiment tracking and model monitoring.
• Build ML Workflows: Implement advanced ML and AI-powered workflows, including entity resolution, probabilistic record linkage, embedding-based matching, semantic similarity, and large language model (LLM)-augmented pipelines.
• Build Shared Tools: Develop and maintain reusable tools, libraries, and documentation that raise team efficiency and technical standards, and give constructive, specific code review feedback.
• Partner Across Teams: Collaborate with product, engineering, and operations, translating business requirements into technical specifications, partnering with data engineering on scalable pipeline design, and joining cross-functional design reviews.

What You Bring

• Bachelor’s degree in Statistics, Data Science, Computer Science, Mathematics, or a related quantitative field, or equivalent practical experience; Master’s strongly preferred.
• 2+ years of hands-on data science experience, with a demonstrated ability to own and deliver complex, multi-sprint projects independently.
• Advanced Python (or another programming language) with production-quality code, testing, and documentation; strong SQL and PySpark for billion-row datasets.
• Databricks workflows, Delta Lake, and job orchestration (nice to have), plus working knowledge of Amazon Web Services (AWS) or Google Cloud Platform (GCP).
• Solid command of core ML (regression, classification, clustering, model evaluation, experimental design) on complex, high-volume data, with MLOps practices including experiment tracking and reproducible model deployment.
• Exposure to modern AI methods: retrieval-augmented generation (RAG) systems, LLM-augmented models, vector databases, and semantic search.
• A strong communicator and team player who turns technical work into clear documentation, user stories, and cross-functional conversations, and who can mentor junior data scientists and contribute to team standards.

Samba is an equal opportunity employer.