Sergo Medin

Profile

I lead a team of 7 analysts at Avito, focusing on sales analytics for the real estate vertical. I’m currently driving the implementation of a strategy I developed for the team, with a strong focus on measurable business impact — from streamlining reporting processes and introducing modern BI approaches to fostering a data-driven culture. I actively share my expertise both internally and externally. I publish articles on major industry platforms, speak at professional meetups, and run internal training sessions. Previously, I worked on monetization, user acquisition, and retention analytics at Yandex, as well as on mobile product development.

Experience

Avito Real Estate

Remote

Team Lead, Sales Analytics

Nov 2023 — Present

  • Built and now lead a team of 7 analysts (6 data + 1 BI) responsible for sales analytics across all real estate categories on Avito.
  • Initiated and established a standalone BI function within the team by justifying additional headcount.
  • Acting as a de facto division lead: manage the full scope of sales analytics across multiple business areas — new buildings, residential and commercial real estate, and travel services.
  • Developed and implemented a one-year analytics strategy used for quarterly planning and goal-setting; regularly facilitate team focus and support analytical culture.
  • Reduced the share of ad-hoc tasks among analysts by 20% through reporting systematization and automation; saved over 10% of managers' time by automating manual KPI tracking.
  • Delivered business impact: improved sales team performance by 15–25% through user behavior analytics, and increased paid conversion by 12% with RFM-based targeting.
  • Independently proposed and implemented an internal HR tool to streamline analyst hiring; shared results publicly, including in this article: https://tinyurl.com/avito-rfm.

Yandex

Remote

Data Analyst → Team Lead

Sep 2016 — Oct 2023

  • Led analytics in courier operations at Yandex Eats, reducing hiring costs by 50% and improving order efficiency, saving over $20,000 per month.
  • Improved courier app experience, solving issues for approximately 10% of users. Launched experiments (A/B, switchback) to validate changes.
  • Created dashboards and forecasting tools used by dozens of managers and analysts to drive growth.
  • Optimized data infrastructure, cutting query times by 10x and speeding up decision-making.
  • Grew and mentored the analyst team — hiring, onboarding, and coaching junior analysts.
  • At Yandex Market, boosted SEO traffic by 20% and built a revenue-attractiveness model used in production.

Previous experience

Moscow, Russia

Oct 2010 - Aug 2016

  • SkillFactory (2020—2021): taught ~100 students in the Data Science program; organized hackathons and analytics meetups.
  • BIOCAD (2013—2016): led data management and automation projects; awarded Best Employee twice.
  • VTB (2012—2013): built business plans using statistical models and large-scale financial data.
  • Bank Vozrozhdenie (2010—2012): automated data workflows, saving 12 man-hours per week on procurement analysis.

Education

BSc & MSc in Fundamental Science: Technical Physics

Moscow Bauman State Technical University

2006 - 2012

Theme of diploma: Modeling of thermal and optical effects in DNA amplifier.

Addition education

I love studying, so I took a lot of courses, so as not to take up space, I put the list of courses on a special page https://sergey.medintsev.com/extra/courses
photo of me

Skills

    • PROGRAMMING
    • SQL
    • Python
    • Bash
    • BI systems & dashboards
      QUANTITATIVE ANALYSIS
    • Statistical modeling
    • Probability theory
    • Experimental design
    • Hypothesis testing
      ANALYTICS & COMMUNICATION
    • Strategic data analysis
    • Critical thinking
    • Clear reporting
    • Insight storytelling
    • External communications (articles, talks)
      LEADERSHIP
    • Team management
    • Cross-functional alignment
    • Goal-focused execution

Languages

  • Russian
    Native
  • English
    B2
  • Spanish
    A1

Diplomas

  • Master of Physics. Moscow State Technical University (2012)

Interests