Staff ML Researcher — Remote, Flexible Hours, High Impact

RTB House; Warszawa; Hybrid; PLN 240,000 - 400,000; Full time

Benefits offered by this job

Remote and on-site options

Flexible working hours

Job summary

RTB House is a global AdTech company applying state‑of‑the‑art ML to optimize advertising across markets. We are seeking a Staff ML Researcher to lead ambitious research projects with significant impact on core metrics.

You will own projects from conception to deployment, design and test neural models, and collaborate with teams across the company in a fast-paced environment. This role offers flexible on-site/remote options.

Qualifications

• 5+ years of research or engineering in ML.
• 2+ years hands-on ML / data science experience.
• Strong programming skills and mathematical intuition.
• Proficiency in Python, Java, Scala and modern ML tools.

Responsibilities

• Identify and drive research projects with company-wide scope and direct impact on core metrics.
• Design and implement models, most often deep neural networks, to predict user behavior.
• Develop and test new approaches to modeling key issues, such as bidding in first-price auctions.
• Conduct and analyze A/B tests of new solutions.
• Follow and analyze the latest works in ML and translate them into practical improvements.
• Mentor researchers and shape research practices across teams.

Skills

Hands-on ML

Proficient programming

Mathematical reasoning

Communication skills

Tools

Python

JAX

BigQuery

GCP

Jupyter Notebooks

Java/Scala

Job description

RTB House is a global AdTech company applying state‑of‑the‑art ML to optimize advertising across markets. We are seeking a Staff ML Researcher to lead ambitious research projects with significant impact on core metrics.

You will own projects from conception to deployment, design and test neural models, and collaborate with teams across the company in a fast-paced environment. This role offers flexible on-site/remote options.