Lead Data Scientist

$$$$
Product

We are looking for an experienced and product-minded Lead Data Scientist to drive the evolution of our Data Science function, shape the technical vision, and guide a high-impact team working at the intersection of research and production. This is a unique opportunity to influence strategy, lead cross-functional teams, and build ML solutions that directly power mission-critical business decisions

 

What You Will Do

  • Define and own the Data Science strategy, ensuring alignment with business goals and long-term product vision.
  • Shape and maintain the technical roadmap based on business priorities, team capacity, and company growth.
  • Scale the Data Science function as the organization expands, designing team structure and hiring profiles.
  • Lead, hire, and mentor a cross-functional team of Data Scientists while fostering a strong R&D culture built on rigor and measurable impact.
  • Manage resources across both Delivery (S&D) and Research (R&D) squads, ensuring clarity and productivity.
  • Act as the bridge between R&D and Delivery: translate business needs into research tasks and adapt prototypes into production-ready solutions.
  • Architect client solutions by selecting appropriate models, algorithms, and assortment strategies using our ML stack.
  • Serve as the quality gatekeeper: review code, validate A/B test designs, and ensure all work meets the team’s Definition of Done (DoD).
  • Drive key DS metrics such as research-to-production time, experiment velocity, and recommendation quality.
  • Communicate insights clearly to product managers, engineers, clients, and stakeholders, aligning expectations and next steps.
  • Represent the company’s technological excellence to investors and partners during high-stakes due diligence.
  • Collaborate with clients' Data Science and Analytics teams (including PhDs), explaining methodology, assumptions, and results with confidence.
  • Translate complex model outputs into concise, business-oriented presentations for executives and decision-makers.
  • Support the sales and pre-sales process by building compelling technical narratives and showcasing ML capabilities.
  • Stay hands-on when needed — from debugging critical delivery issues to prototyping new models or designing experiments.

     

What You Have

  • 5+ years of experience in Data Science or a related field, with a strong record of delivering production value.
  • Strong Python and SQL proficiency, with clean and modular coding practices.
  • Hands-on experience with Databricks and Apache Spark.
  • Familiarity with Data Mesh principles and collaboration workflows with data engineering teams.
  • Solid mathematical foundation, ideally within a Computer Science–related discipline.
  • Expertise in scientific Python tools: NumPy, pandas, scikit-learn, and either TensorFlow/Keras or PyTorch.
  • Deep understanding of statistical methods and A/B testing frameworks.
  • Experience with Time Series Forecasting approaches.
  • 3+ years working with tabular and mixed (multimodal) data.
  • Bonus: experience in Causal Inference and ecommerce/retail domains.
  • Upper-intermediate or higher English proficiency and excellent public speaking skills.

     

Soft Skills

  • A strong focus on business impact — understanding not only how the model works but why it matters.
  • Ability to translate complex concepts into simple explanations for non-technical stakeholders.
  • Professional communication with highly technical client teams, including PhD-level experts.
  • Ownership of data requirements, integration workflows, and validation processes.
  • Comfort with experimentation, iteration, and decision-making in a dynamic environment.
  • Proactivity: contribute DS-driven ideas to the Product Backlog and influence roadmap direction.
  • Creative thinking and a pragmatic approach to solving complex technical and product challenges.
  • Curiosity, eagerness to learn, and a strong entrepreneurial mindset.

     

You Will Love Working With Us Because

  • Innovative ML stack with freedom to choose the best tools and approaches.
  • Remote-first culture with the flexibility to work from anywhere.
  • Flexible working hours (start between 8–11 AM), no time tracking.
  • Regular performance reviews and clear OKR structure.
  • In-depth onboarding with transparent success milestones.
  • We cover 70% of your training or course fees.
  • 20 vacation days, 15 days off, and an additional week of paid Christmas holidays.
  • 20 business days of paid sick leave.
  • Partial medical insurance coverage.

 


 

Required languages

English B2 - Upper Intermediate
Ukrainian B1 - Intermediate
Published 26 September
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6 applications
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