Staff Machine Learning Researcher (AdTech)

Location: Warsaw, Masovian Voivodeship, Poland; remote and on-site work possible with flexible working hours

Company

hirify.global develops marketing and ad-buying technologies powered by deep learning for brands and agencies worldwide.

What you will do

• Identify, define, and lead high-scope ML research projects with direct impact on core business metrics.
• Design and implement deep neural networks that predict Internet users’ behavior and preferences.
• Develop and test new approaches to problems such as bidding in first-price auctions.
• Conduct and analyze A/B tests and move successful solutions from research through proof of concept to production deployment.
• Track current machine learning research and translate relevant findings into practical improvements.
• Mentor researchers and shape research practices across teams.

Requirements

• 5+ years of experience as a researcher or engineer.
• 2+ years of hands-on experience with machine learning or data science.
• Strong programming proficiency and practical experience writing code, training models, and running experiments.
• Sound mathematical knowledge and strong mathematical intuition.
• Ability to solve ambiguous problems, define success metrics, communicate effectively, and own projects end to end.

Nice to have

• Strong theoretical background in statistics, probability, discrete mathematics, or combinatorics.
• Experience in AdTech.

Culture & Benefits

• Attractive compensation.
• Access to current technologies and large-scale, highly dynamic projects with extensive datasets.
• Immediate impact on global business results and opportunities to mentor less experienced colleagues.
• Remote and on-site work options with flexible working hours.
• Knowledge-sharing culture among experienced ML specialists and a practical, results-oriented environment.