---
title: 'Senior Machine Learning Researcher at RTB House'
canonical: 'https://feeny.ai/job/senior-machine-learning-researcher-rtb-house-warsaw-masovian-voivodeship-t6karrhgthpz'
type: 'job'
last_seen: '2026-10-16'
---

# Senior Machine Learning Researcher at RTB House

- **Company:** RTB House
- **Location:** Warsaw Masovian Voivodeship, Poland
- **Posted:** 2026-02-16
- **Last confirmed live:** 2026-10-16
- **Apply:** https://job-boards.eu.greenhouse.io/rtbhouse/jobs/4781365101

## Job description

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!

You don't need to tick every box to apply. If you are passionate about digital marketing, send us your CV, and we'll review it.

## About RTB House

## Company Overview
- **One-liner**: RTB House is a Polish adtech company that provides a next-generation demand-side platform (DSP) powered entirely by proprietary deep learning algorithms for performance advertising.
- **Entity Type**: Private (Privately Held)
- **Headquarters**: Warsaw, Poland
- **Founded**: 2012
- **Founders**: Paweł Chodaczek, Robert Dyczkowski, Bartłomiej Romański, Daniel Surmacz

## Core Business
- **Primary industry/industries**: Advertising Technology (AdTech), Marketing Technology (MarTech), Digital Advertising
- **Target customers**: B2B; top brands and agencies worldwide across EMEA, APAC, and the Americas
- **Mission or purpose statement**: To push the boundaries of what's possible in Open Internet Performance Advertising, building performance advertising that truly drives impact.

## Products & Services
- **Retargeting (Next-gen Retargeting)**: AI-powered retargeting campaigns that capture non-obvious converters and make novel product recommendations using deep learning.
- **Acquisition**: Multi-touch, dynamic product ad campaigns designed to generate initial conversions from new-to-file customers.
- **Quality Traffic**: Campaigns optimized for tag-validated, meaningful visits and on-site engagement rather than raw clicks, using LLM-powered audiences.
- **Demand Generation**: Broader video and display advertising with product overlays to maximize brand impact and guide high-intent prospects.
- **Shoppable Creative**: On-brand, interactive ad creatives with personalized product recommendations delivered across the purchase journey.
- **Social Banners, Snippet Ads, Context AI, PrimeAudience**: Additional products listed in company records.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed (private company)
- **Key Metric**: Annual Revenue of **$120.0M** (as per LinkedIn); serves over **1,500+ campaigns** for clients
- **Notable Investors/Partners**: Prebid Certified Partner, IAB Tech Lab Member, NAI Board Member & Director; ISO/IEC 27001:2022 certified (2025)
- **Growth Signals**: Featured in seven consecutive editions of the “FT1000” (Financial Times & Statista list of fastest growing companies in Europe); operates in **90+ markets** with **30+ offices** worldwide; headcount of **1,500+** employees; 57% more revenue from lower-funnel campaigns claimed for clients

## Competitive Advantages
- **Deep Learning Foundation**: The first end-to-end performance pipeline powered entirely by Deep Learning algorithms, leveraging 2,500x more computations than traditional Machine Learning models.
- **First-Party Data Focus**: A private-by-design approach that activates first-party signals without pooling or selling client data, building an exclusive competitive edge.
- **Proven Additive Revenue**: Claims to deliver 57% more revenue from lower-funnel campaigns without requiring changes to existing marketing mix.
- **Global Scale & Independence**: Proudly independent with a presence in 90+ markets, offering clients scale without the constraints of larger holding companies.
- **Industry Leadership**: Active in shaping industry standards through NAI, IAB Tech Lab, and Prebid partnerships.

## Strategic Focus
- **AI & Deep Learning Innovation**: Continued investment in AI-driven products via the AI Marketing Lab and Creative Lab, focusing on inventing and advancing MarTech products.
- **Global Expansion**: Ongoing expansion into new markets, with a growing team across 30+ offices worldwide.
- **Privacy-First Advertising**: Leading the shift toward first-party data advertising in a post-cookie world, emphasizing consumer privacy, transparency, and choice.
- **Complementary Solutions**: Positioning as an additive layer to existing performance marketing stacks rather than a replacement.

## Why Work Here
- **Culture**: Described as a team of "pragmatic innovators" who are "relentlessly innovative" and "outcome-driven"; emphasizes ownership, impact, and recognition.
- **Work Environment**: "Make yourself at home" philosophy; supports dynamic work in an international team with locations worldwide.
- **Remote/Hybrid Policy**: Not explicitly stated, but the company has 30+ offices globally and offers flexibility ("Wherever you're working from, you’ll find a home with RTB House").
- **Technology Focus**: Opportunity to work with "the world’s most advanced AI technology" and shape the future of MarTech; strong emphasis on deep learning, machine learning, and AI engineering.
- **Growth & Impact**: Fast-growing company (FT1000 list) with a global footprint; employees are encouraged to "take ownership of your own career" and "future-proof your career."
- **Notable Perks**: International team exposure; work with cutting-edge AI; opportunity to contribute to industry standards through partnerships.
- **Current Openings**: 54 job openings across Technology & Innovation, IT and R&D, Sales & Business Growth, and Global Support & Operations (as of latest data).

## Sources
1. [rtbhouse.com](https://www.rtbhouse.com/about-us)
2. [rtbhouse.com](https://www.rtbhouse.com/)
3. [rtbhouse.com](https://www.rtbhouse.com/careers)
4. [greenhouse.io](https://job-boards.eu.greenhouse.io/rtbhouse)
5. [linkedin.com](https://www.linkedin.com/company/rtb-house)

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