About the company: 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.

About your role: As a Data Scientist, you step into a product ecosystem where millions of interactions happen every day across live streams. Your work becomes the engine behind smarter decisions at scale: transforming raw signals into predictive insights, elevating user journeys, and driving measurable business impact across Tier-1 markets. This role blends deep technical ownership with product thinking — you won’t just build models, you’ll shape how intelligence flows through one of the fastest-growing social & streaming platforms in our space.

In this role, you will

• Create, develop, and refine machine learning models to improve business effectiveness
• Work with cross-functional teams, including product and engineering, to deliver impactful features and improvements
• Utilize expertise in data structures, algorithms, and ML techniques to boost model performance and efficiency
• Apply best practices in MLOps for seamless deployment, monitoring, and maintenance of ML models in production
• Troubleshoot and resolve issues related to ML pipelines and model reliability
• Stay ahead of the latest trends and best practices in ML and AI
• Define and support the roadmap for the recommendation engine, focusing on gifts and coins recommendations

It’s all about you

• 2+ years of experience in machine learning and deep learning on tabular data, especially recommendation systems
• 2+ years of software development with Python and hands-on ML project work
• Experience designing a data science roadmap and leading technical execution
• Experience with cloud development on AWS/GCP/QWAK (GCP preferred)
• Experience deploying API-based ML models in dev/prod environments
• Solid understanding of A/B testing processes
• Strong grasp of the mathematics behind ML: linear algebra, statistics, optimization
• Extensive SQL experience — ideally BigQuery
• Excellent communication skills, strong teamwork
• Responsibility and ability to work independently
Would be a plus
• Experience in the social networking domain
• Broader ML experience beyond computer vision or NLP-only backgrounds

What we offer

• Care and support:
• 20 paid vacation days, 15 sick days, and 6 additional days off for family events
• 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
• Online yoga with an instructor certified by the Ukrainian Federation of Yoga
• 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
• 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
• Test task
• Final interview with Head of Operations
• Reference check
• Offer