inDriveNow
Apr 2026 – now · Limassol, Cyprus
Senior Data Scientist · Super App team
- We improve personalization with ML. My part is research, A/B tests and causal studies.
Ilya Koliev
Senior Data Scientist · Experimentation & causal inference
Limassol, Cyprusi.s.koliev@gmail.comlinkedin.com/in/ilya-kolievt.me/kolievkoliev.com
Summary
Senior Data Scientist at inDrive. I use data to find where a product can grow, then test whether it did: A/B tests and holdbacks when users can be randomized, causal methods (difference-in-differences, synthetic control, matching) when they can't. 5+ years at inDrive, VK Mail and T-Bank; built and led analytics teams of up to 4 analysts. I use AI agents for the routine parts of analysis; choosing the comparison and standing behind the number stays with me.
Experience
VK Mail
Apr 2024 – 2026 · Moscow
Analytics Team Lead
Jul 2025 – 2026
- Audited partner-monetization metrics with product and engineering, found a 30% revenue overstatement and reset priorities.
- Built team processes: hiring, onboarding, growth plans. Hired a middle and a senior analyst.
Lead Product Analyst
Apr 2024 – Jun 2025
- Designed and automated holdback experiments across all Mail products (Mail, Cloud, the Mail.ru portal; 60M+ MAU) on all platforms, separating product impact from market effects. Two releases were canceled after holdbacks showed metric degradation.
- Introduced a regular holdback report for the CEO with each product team's impact on business-unit metrics.
- Onboarding and sign-in: +5 pp logins via VK ID.
- Built data pipelines between business units for the VK ID integration and aligned 4 teams on cross-unit A/B tests, saving 100+ analyst hours.
- Set up a data-quality framework (tests and alerts) covering 80% of critical metrics. It caught about 3 metric degradations a quarter.
T-Bank
May 2021 – Apr 2024 · Moscow
Analytics Team Lead · Voice bots, AI Center
Nov 2022 – Apr 2024
- Built an analytics team of 4 product analysts in the voice-bots vertical: +3 pp call automation; analytics accounted for a third of the vertical's OKRs.
- Migrated and unified the quality-labeling process and removed methodological errors in evaluation. The tool became the chatbots team's standard.
Product Analyst · Voice bots, AI Center
May 2021 – Oct 2022
- Found and justified voice-bot features worth more than 5M RUB in monthly savings.
- Designed a support dashboard that became the chatbots team's standard.
- Replaced the key A/B metric, “employee time saved”, with more precise impact measures.