Head of Data Science

United Tech is a global IT product company shaping the future of real-time social connection. With millions of users across North America, Europe, LATAM, and MENA, we build next-gen mobile and web apps for live-streaming and social networking. Our platforms enable connection at scale fast, interactive, and deeply engaging. The market is projected to exceed $206B by 2030, and we are already leading the evolution. Founded in Ukraine, scaling worldwide. Are you in?

About the role: This is a role for a leader who thrives in a fast-moving product environment, where challenges fuel growth and every decision shapes the future. With United Tech you will have the freedom to design, build, and re-engineer processes from the ground up, working side by side with a team that values initiative, knowledge sharing, and bold goals. Your ideas will directly influence revenue, and you will see the tangible results of your work reflected in key financial metrics. We move fast, we cut through bureaucracy, and we take on complex challenges that push both personal and professional boundaries, limited only by the scale of your ambitions.

In this role, you will

Build, scale, and develop the Data Science team, including hiring, mentoring, and performance evaluation
Define and execute a Data Science strategy aligned with business priorities
Oversee the full lifecycle of DS projects from problem formulation to deploying models into production
Prioritize initiatives based on business impact (ROI, time-to-market)
Collaborate closely with product managers, analysts, engineers, and C-level executives

It’s All About You

Proven ability to implement best practices in Data Science: reproducibility, A/B testing, ML monitoring
Strong track record in maintaining model quality (performance, drift, latency)
Advanced Python skills (pandas, sklearn, numpy, xgboost; pytorch/tf is a plus)
High-level SQL expertise (large datasets, query optimization)
Hands-on experience with ML pipelines, orchestration (Airflow, Prefect), and monitoring (Evidently, MLflow, Prometheus)
Experience with GCP
Solid understanding of A/B testing, causal inference, and statistics
Familiarity with architecture fundamentals (API, data pipelines, microservices — integration level)
Cloud experience with AWS or Azure
Knowledge of distributed computation tools (e.g., Spark, CloudRun)
Proven track record with generative AI/NLP model deployment
Experience in startups or high-growth companies
Publications, conference speaking, achievements on Kaggle, or open-source contributions

Would be a plus

Experience optimizing company processes through AI solutions
Implementation of AI tools across departments (development, support, marketing, etc.)

What We Offer

Care and support:
20 paid vacation days, 15 sick days, and 6 additional days off for family eventsz
Up to 10 additional days off for public holidays
100% medical insurance coverage
Sports and equipment reimbursement
Team building events, corporate gifts, and stylish merch
Financial and legal support
Position retention and support for those who join the Armed Forces of Ukraine
Participation in social initiatives supporting Ukraine
Comfortable working environment:
Work from our Kyiv hub or remotely with a flexible schedule
Workspace rental reimbursement in other cities and abroad
Modern equipment or depreciation of your own tools
Investment in your future:
Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
70% of our heads and leads have grown into their roles here – so can you!
Performance-oriented reviews and Individual Development Plans (IDPs)
Reimbursement for professional courses and English classes
Corporate library, book club, and knowledge-sharing events

Hiring process

Intro call
Technical Interview
Interview with Hiring Manager
Final Interview
Reference check
Offer

Head of Data Science

Key Skills

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