RTB House
Senior Machine Learning Researcher
Warsaw, Masovian Voivodeship, Poland
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hirly's read of this role
- Seniority
- Senior
- Country
- PL
- Work mode
- Remote-friendly
- First seen by hirly
- 2 Sept 2026
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the posting
Location : Poland
We Are:
RTB House is a global company that provides state-of-the-art marketing technologies for top brands and agencies worldwide. Its proprietary ad-buying engine is the first in the world to be powered entirely by Deep Learning algorithms, enabling advertisers to generate outstanding results and reach their goals at every stage of the funnel. As an ML Researcher , you will be responsible for its development.
Founded in 2012, and now operating in 90+ markets, RTB House has always been private-by-design. It embraces first-party advertising and a relentless approach to innovation. RTB House offers end-to-end Deep Learning-powered AdTech products and solutions to maximize conversion, drive new customer acquisition, create engagement, and fuel long-term demand for a global base of clients.
You Will:
Designing and implementing models, most often of deep neural networks, used to predict the behavior and preferences of Internet users
Analysis of the latest works in the field of Machine Learning
Conducting and analyzing A/B tests of new solutions
Developing and testing new approaches to modeling key issues, such as bidding in first-price auctions
Desired Experience:
4+ years of hands-on experience with Machine Learning / Data Science
Interest and willingness to constantly develop in the area of Machine Learning
Knowledge of statistics and probability
Proficiency in programming
C1 level in Polish
Selected technologies used:
Python, Java, Scala
PyTorch, NumPy, Pandas
Jupyter Notebooks
Additional advantages will be:
Experience in the ML industry
Experience in designing recommendation systems
Practical knowledge of the tools we use
Sample topics:
Implementation and analysis of new model architectures, such as convolutional networks, transformer
Analyze the difference in the distribution of training and production data. Estimating the scale of the problem, identifying the best solution, analysis, implementation, deployment
Experiments with the use of transfer learning
A completely new approach to generating product recommendations that is free from proxy targets and uses contrastive loss function
We Offer:
Cooperate in a team of enthusiasts with experience in machine learning who willingly share their knowledge and skills
Extremely flexible cooperation conditions - you cooperate when it is convenient for you and devote as much time as you can; you can cooperate fully remotely
Access to the latest technologies and the possibility of real use of them in a large-scale and highly dynamic project;
Possibility of using the possessed knowledge and competences in practical applications - while optimizing algorithms supporting hundreds of millions of Internet users and monthly buyers of billions of advertising views in the RTB model, based on extensive data sets
The effects of your cooperate immediately visible in the company's business results
Possibility to publish your results
Cooperation based on B2B contract or Contract of Mandate
You can cooperate 100 % remotely or choose one of our office spaces in Warsaw or Cracow.
Apply now!
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Listed on hirly, a job board. hirly is not the employer: RTB House is hiring for this role.
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