
Marc van Eck
Data Scientist
Data scientist, consultant & entrepreneur with 6 years of experience in advising, planning, executing, and leading large data projects for clients. Skilled at data science using Python, R, SQL, as well as engineering and cloud. Led multiple teams, from the data science craft team to multidisciplinary client teams.
Study
MSc Marketing Intelligence
Rijksuniversiteit Groningen- Now known as Data Science & Marketing Analytics.
- Key courses: Strategic Marketing (9), Data Science & Marketing Analytics (8), Digital Marketing Intelligence (8), Market Models (8).
- Learned SQL and R; thesis graded 8.
BA Communication & Information Sciences
Rijksuniversiteit Groningen- Minors in International Relations & Marketing.
- Thesis: “The influence of reputation on interaction within Facebook” (8.2).
- Board year at Study Association Commotie as Secretary & Vice-chairman.
Experience

Turntwo
Senior Data Scientist
Nov 2025 – PresentAmsterdam- Marketing Intelligence & Activation with a focus on data science, activation and AI.

Wundermart
Data Scientist
Dec 2024 – Nov 2025Amsterdam- Built the foundation for scalable and impactful data science in a fast-growing retail tech environment.
- Developed a centralized analytics hub in BigQuery with Dataform, Airbyte, and improved Airflow.
- Implemented Wundermart’s first end-to-end ML pipeline, with MLFlow tracking and GCP API deployment.
- Led forecasting model development for unmanned shops.
- Created a revenue projection tool with seasonal decomposition, deployed as an interactive Streamlit app.

Merkle
Senior Data Scientist
Apr 2022 – Dec 2024Amsterdam- Led the Data Science capability at the Amsterdam office; managed delivery across multiple clients; mentored 4 consultants.
- Co-developed Northern European generative AI strategy; advised leadership on LLM adoption.
- Directed data science programs for KLM, Marktplaats, HEMA, DNB, and Carglass.
- Led the design and deployment of a cloud-based Customer Data Platform (“Leen’s Brain”) for Leen Bakker – Kwantum.
- Won Gold AMMA Award 2022 for Best Use of Data & Technology.
Data (Science) & Tech Consultant
Feb 2021 – Apr 2022Amsterdam- Delivered applied data science, orchestration, and activation solutions for key clients.
- Led technical workstreams in multidisciplinary teams.
- Supported innovation initiatives in cloud data architecture and proprietary analytics tools.
Online Marketing & Data Consultant
Sep 2019 – Feb 2021Amsterdam- Rotated across Paid Search, Paid Social, and Data/Tech Optimization in Merkle’s trainee program.
- Combined marketing channel knowledge with data analytics to identify optimization opportunities.
- Initiated early first-party data strategy projects.
Cases
KLM — Branded Paid Search Impact Validation
Led a geo-experiment for KLM, funded by Google’s Digital Accelerator Program, testing the impact of branded paid search.
HEMA — SEO Assistant with Generative AI
Built an LLM-powered SEO content tool in Streamlit hosted on Google Cloud Run.
Leen Bakker — “Leen’s Brain” & Taste-Driven Marketing
Created a central GCP-based customer data hub for predictive marketing.
Carglass — YouTube Incrementality Test
Executed geo-experiment measuring YouTube ads’ incremental value.
Merkle GenAI — Contextual Enterprise LLM
Developed contextual “brain” for internal AI assistant, enabling context-aware responses.