Data Scientist III

openxยท Technology
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๐Ÿ“ KrakowFull Time

About this role

Company at a Glance OpenX is focused on unleashing the full economic potential of digital media companies. We do this by making digital advertising markets and technologies that are designed to deliver optimal value to publishers and advertisers on every ad served across all screens. At OpenX, we have built a team that is uniquely experienced in designing and operating high-scale ad marketplaces, and we are constantly on the lookout for thoughtful, creative executors who are as fascinated as we are about finding new ways to apply a blend of market design, technical innovation, operational excellence, and empathetic partner service to the frontiers of digital advertising. A Data Scientist III is a proficient, fully independent scientist who owns medium-to-large data science projects end-to-end โ€” from problem formulation and research through to deploying and maintaining production models. In this role, you will build production-ready models and analyses that solve real marketplace problems, partner with product and engineering to ship them, mentor junior scientists, and act as a strong technical voice within your team. Problems at this level include bidding and yield modeling, relevance and prediction systems at exchange scale, experimentation and causal measurement of marketplace changes, and the feature engineering, validation, and monitoring required to run ML reliably in production. The ideal candidate brings a solid applied machine learning foundation, growing judgment in selecting methods for business problems at scale, and a track record of carrying analytical work from an ambiguous question through to measurable production impact.

Frequently Asked Questions

Is the salary disclosed for the Data Scientist III position at openx?
The salary for this Data Scientist III role at openx is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Data Scientist III position at openx located?
This Data Scientist III role at openx is based in Krakow. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Data Scientist III role at openx full-time or part-time?
This is listed as a Full Time position. It is posted as a Data Scientist III role in the Technology department at openx.
Which team or department does the Data Scientist III at openx belong to?
This Data Scientist III position is part of the Technology department at openx. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Data Scientist III position at openx?
Click the "Apply Now" button on this page. You will be redirected to openx's official application portal hosted on lever where you can submit your application directly.
When was the Data Scientist III job at openx posted?
This Data Scientist III position at openx was posted on Jun 30, 2026. Apply as soon as possible โ€” early applications are often reviewed first.
Data Scientist III
openx
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