> Markdown version of [/jobs/ext/338376-machine-learning-scientist-i-performance-marketing](https://www.wearedevelopers.com/jobs/ext/338376-machine-learning-scientist-i-performance-marketing). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Machine Learning Scientist I - Performance Marketing

- **Company:** Booking.com
- **Location:** Manchester, UK
- **Experience:** Starter
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Data Analysis, Big Data, BigQuery, Data Visualization, Python (Programming Language), Machine Learning, Open Source Technology, Software Engineering, SQL Databases, Apache Spark, Information Technology, Data Analytics, Marketplace, Data Generation
- **Published:** June 10, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=6520532349d72235

## About the Role

Do you have experience in Spark?, Do you have a Master's degree?, * Master's degree or PhD required (Computer Science, Engineering, Mathematics, Artificial Intelligence, Physics)

 * Industry or academia knowledge of large scale optimisation techniques or mechanism design or auction theory.
 * Experience contributing to innovative machine learning and optimization solutions for large-scale business problems. Preferably evidenced by peer-reviewed publication, patents, open sourced code or the like.
 * Relevant work or academic experience (MSc + 1 year of working experience), involved in the application of Machine Learning to business problems.
 * Knowledge of some machine learning facets: working with large data sets, model development, statistics, experimentation, data visualization, optimization, software development.
 * Understanding of cross-functional development of machine learning products (e.g. Developers, Commercial, Data Analytics, etc.).
 * Working knowledge of Python, SQL/BigQuery, Spark
 * Excellent English communication skills, both written and verbal.

## Description

* Develop innovative techniques for the next phase of our online bidding algorithms, including modeling user intent, modeling the online marketplaces, and optimizing our bidding strategy to maximize the efficiency of how we spend our advertising budgets.
 * Design and implement scalable evaluation pipelines, including synthetic data generation and benchmarking for model quality, relevance, and consistency.
 * Ensure the reliability, efficiency, and scalability of evaluation tools and frameworks in both offline and online environments.
 * Conduct in-depth data analysis to define and track evaluation metrics, validate label quality, and explore performance across different traffic siloes.
 * Collaborate closely with ML engineers to integrate evaluation components into production pipelines, supporting continuous improvement of bidding applications.
 * Work cross-functionally with commercial and analytics teams to align evaluation strategies with business goals and user impact.


## Related Videos

- [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail)
- [Alibaba Big Data and Machine Learning Technology](https://www.wearedevelopers.com/videos/37-alibaba-big-data-and-machine-learning-technology)
- [Launching a marketplace on-time: A lesson in taking shortcuts using spreadsheets!](https://www.wearedevelopers.com/videos/477-launching-a-marketplace-on-time-a-lesson-in-taking-shortcuts-using-spreadsheets)
- [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data)
- [Making Data Warehouses fast. A developer's story.](https://www.wearedevelopers.com/videos/302-making-data-warehouses-fast-a-developer-s-story)
- [Data Governance in the Era of AI](https://www.wearedevelopers.com/videos/1622-data-governance-in-the-era-of-ai)

## Related Articles

- [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer)
- [Highest Paying Tech Companies in Europe](https://www.wearedevelopers.com/magazine/162-highest-paying-tech-companies-in-europe)
- [What Industries Outside of AI Are Hiring The Most AI Experts?](https://www.wearedevelopers.com/magazine/98-what-industries-outside-of-ai-are-hiring-the-most-ai-experts)
- [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)
- [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe)
- [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)