Nikolai Sergeev

Nikolai Sergeev — Product Owner

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Portrait of Nikolai Sergeev
13+ years in digital 5 years as Product Owner PSPO I certified Led 8-person cross-functional teams 600+ A/B tests shipped Telecom & Retail domain expertise

📍 Thessaloniki, Greece

Profile

An experienced product owner with a wide expertise in marketing and digital, continuously looking for challenges and interesting projects. At the current place of work, the main priority is effective management of the team, based on the principles of leadership. Strengths: critical thinking, creativity, ability to negotiate and find compromises, technical background, and love for product management challenges. Product approach focuses on data-driven decisions, testing hypotheses through MVP, and flexibility.

Skills

  • Hard skills: Market Research, A/B Testing, Cohort Analysis, Product Roadmap Development, Data-driven Decision Making, Defining MVPs and Prototypes, Product Metrics, Trello
  • Soft skills: Strategic Thinking, Communication, Teamwork, Leadership, Practicing Empathy, Flexibility, Active Listening, Critical Thinking, Positive Attitude
  • Languages: English C1; Russian Native

Experience

Product Owner — Deutsche Telekom, Gigabit Hub

Sep 2022 — Present

  • Directed design and development of the NE3 Switching Orchestrator, automating 30+ manual steps during GF-AP adjustments.
  • Managed handover of several products during the EWC reduction process, ensuring business continuity.
  • Collaborated with the UI/UX lab to conduct user interviews for Gigabit products, forming a customer-centric product vision and launching updates based on user feedback.
  • Supported the GFNW Value Stream, maintaining regular contact with client representatives and aligning requirements across teams.

Product Owner — X5 Group

Nov 2020 — Sep 2022 X5 Group is Russia’s largest food retailer with over 19,000 stores.

  • Launched 600+ A/B experiments for CVM campaigns to increase incremental GMV by ~5.5B rubles yearly.
  • Designed and implemented an automatic onboarding chain for new customers to raise retention from 42% (control) to 44% (target).
  • Led a team of 2 Data Science developers, 2 Data Analysts, 1 Data Quality Engineer, 1 Marketing Manager, 1 Designer, and 1 Commerce Manager using Scrum.
  • Communicated requirements and deadlines to key stakeholders through discovery and delivery.

Head of CRM Marketing — Citymobil (Mail.ru Group)

Sep 2019 — Nov 2020 Citymobil is the second most popular online taxi service in Russia.

  • Planned and executed a referral program for active customers, cutting CAC 3× versus performance marketing.
  • Performed RFM analysis and implemented anti-churn and onboarding campaigns to boost GMV by ~600M rubles yearly.
  • Collaborated with mobile app PMs and analytics to develop a customer loyalty program.
  • Acted as business customer to backend team and defined requirements for integration with the customer data platform.

Head of Digital — Mary Kay Global

Jan 2017 — Sep 2019

  • Managed a digital team of 3; built strategy with HQ stakeholders and delivered execution.
  • Identified gaps in the customer journey on marykay.ru and led feature delivery across IT and UI, increasing online order conversion by 15%.
  • Wrote business requirements for Salesforce CRM integration; designed and launched a welcome chain in Salesforce Marketing Cloud.

Head of Digital — Ekotera

May 2012 — Jan 2017 Ekotera is a construction company specializing in suburban development and the sale of land and houses.

  • Built the internet marketing department from scratch, recruiting and developing a 5-member team.
  • Launched a network of websites for cottage communities.
  • Implemented an ad funnel with lead cost and performance tracking.

Education

Bauman Moscow State Technical University — Machines and technologies for metal forming
2002 — 2006

Courses & Certificates

  • 2024 — Certified SAFe 6 Agile Product Manager
  • 2024 — Professional Scrum Product Owner I
  • 2021 — A/B-testing and mathematical statistics (EXPF)
  • 2017 — Python as a First Programming Language (Higher School of Economics)