Senior Data Scientist - Remote

Overview

This position is posted by Jobgether on behalf of Sift. We are currently looking for a Senior Data Scientist in Ukraine or Poland.

Join a high-impact team at the forefront of AI innovation, tackling real-world fraud and trust challenges across the digital economy. In this role, you’ll prototype intelligent systems, explore generative AI use cases, and lead the development of advanced machine learning models. Working cross-functionally with engineering and product teams, you’ll build scalable, real-time solutions that detect and prevent fraudulent activity. You’ll also mentor junior team members and help define the future of data science within a collaborative, remote-first environment.

In Short

• Design and conduct hypothesis-driven experiments and offline simulations to validate product and model effectiveness.
• Develop and prototype cutting-edge machine learning models and generative AI tools to detect fraud and abusive behavior.
• Investigate adversarial behavior and create robust defenses against evolving threats.
• Collaborate with engineering, product, design, and customer teams to integrate data science solutions into production systems.
• Mentor junior data scientists and promote best practices in experimentation, modeling, and operationalization.

Requirements

• Experience in data science and machine learning.
• Proficiency in programming languages such as Python or R.
• Strong understanding of statistical analysis and modeling techniques.
• Experience with generative AI and its applications.
• Ability to work collaboratively in cross-functional teams.

Benefits

• Opportunity to work in a remote-first environment.
• Mentorship opportunities and career growth.
• Be part of a high-impact team tackling real-world challenges.
• Engagement with cutting-edge technology and AI innovation.