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# Expert Applied Scientist

- **Company:** TomTom International BV
- **Location:** Amsterdam, Netherlands
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Data Analysis, Big Data, Code Review, Monitoring of Systems, Python (Programming Language), Machine Learning, Apache Spark, Model Validation, Data Analytics, Machine Learning Operations, Data Pipelines, Databricks
- **Published:** June 13, 2026
- **Apply:** https://nl.indeed.com/viewjob?jk=ab2aa798fdab9658

## About the Role

Do you have experience in Spark?, * 4+ years of experience in data science / applied science roles (Senior level).

 * Strong expertise in machine learning (supervised, unsupervised, and dimensionality reduction techniques) and model selection.
 * Excellent Python skills and experience with large-scale data processing (e.g. Spark, big data environments).
 * Proven experience in building and deploying data pipelines and ML solutions in production.
 * Strong communication skills and ability to explain complex concepts to both technical and non-technical stakeholders., * Experience with ML experimentation and monitoring tools (e.g. MLflow, Databricks).
 * Experience in Java and related technologies

## Description

* Design and deploy ML and data-driven solutions to detect, validate, and reduce map quality issues (e.g. data drift, feature distribution shifts across countries, road classes, and sources).
 * Define and drive data analysis and model evaluation standards, including advanced and segmented performance metrics.
 * Lead the productionization of models and data pipelines, working closely with engineers and data engineers, including pipeline optimization.
 * Build and improve end-to-end automated workflows (from issue detection to resolution and closure), minimizing manual processes.
 * Perform code reviews and optimization, ensuring high-quality, production-ready solutions.
 * Mentor and guide less experienced scientists; contribute to planning and coordination of data science initiatives.


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