Nikolay Baakh

Head of Data Department

Belgrade, Serbia · contact@baakhoff.com

LinkedIn

Summary

I build companies around data — for businesses at any stage of data infrastructure maturity. With extensive experience across iGaming, B2B SaaS, and affiliate marketing industries, I integrate high-level strategy with deep technical execution. I build and modernize high-functioning teams for AI systems, ELT pipelines, front-end analytics, predictive analytics, and machine learning — creating systems that objectively measure business performance and unlock trapped value from siloed data.

Experience

Sep 2025 — Apr 2026 · 8 months
Head of Data Department
Confidential B2B iGaming Tech Provider · Lisbon, Portugal
  • Built and led a 10-person data team (2 engineers, 4 analysts, 2 full-stack devs, 1 PM, 1 web analyst)
  • Designed all-inclusive data strategy; applied advanced analytics for customer engagement and KPI tracking
  • Developed ClickHouse data warehouse for real-time insights; engineered user behavior tracking via PostHog
  • Deployed Apache Superset for real-time product metrics, platform analytics, and B2B CLV dashboards
  • Built robust data pipelines and APIs for frontend-backend data delivery interfaces
ClickHouse Superset PostHog Airflow Python dbt MySQL PostgreSQL
Jan 2025 — Sep 2025 · 9 months
Head of Data Department
Confidential iGaming Affiliate Company · Netherlands
  • Built data department from scratch; hired and directed a team of 5 (2 engineers, 3 analysts)
  • Architected scalable ELT pipeline (Python + dbt + Airflow → ClickHouse), integrating Affilka and Affise APIs
  • Built buyer-side traffic payback model, enabling traffic valuation and distribution decisions
  • Deployed Holistic for company's first centralized dashboards; identified key structural financial issues for executive team
ClickHouse Python dbt Airflow Holistic MySQL PostgreSQL
Aug 2024 — Jan 2025 · 6 months
Product Chief Analytics Officer
01tech · Belgrade, Serbia
  • Coordinated 3 full-cycle analytics teams across Data, Engineering, BI, Web, and Business Analytics
  • Executed large-scale ETL refactoring; implemented strategic planning and budget for the department
  • Integrated user retention costs (bonuses, promo codes, call center) into traffic payback formulas
  • Created competency matrices and individual development plans for team leads
Aug 2023 — Aug 2024 · 1 year 1 month
Team Lead of Data Analysis
01tech · Belgrade, Serbia
  • Established and launched a Marketing Analytics team of 6 Data Analysts from scratch
  • Built key BI tools: end-to-end real-time traffic analytics, employee efficiency, traffic payback, and user cohort analysis
  • Introduced AOV-based ROAS and ROI analysis method for the marketing department
  • Mentored analysts: Junior → Middle+ and Middle → Senior levels
Apr 2023 — Aug 2023 · 5 months
Lead Data Analyst
Ocean Digital · Almaty, Kazakhstan
  • Designed custom data extraction pipelines integrating third-party APIs with cleaning and transformation stages
  • Built interactive Looker dashboards for key stakeholders, enabling quick access to critical metrics
  • Maintained and expanded databases with 2,000+ manual records per month, ensuring data quality and consistency
Looker SQL Python REST APIs
Oct 2022 — Mar 2023 · 6 months
Data Analyst
LLC "ПРО ДИЗАЙН" · St Petersburg, Russia

Gained access to Postgres-based 1C and CRM databases under NDA to perform data analysis for a leading 26-store finishing materials retailer in St Petersburg. Discovered the need for data analysis and self-initiated the role while employed as Sales Manager.

PostgreSQL SQL CRM Analytics
Jan 2020 — Jan 2022 · 2 years 1 month
Marketing Specialist (Self-employed)
Entrepreneur · Russia

Developed and executed social media strategies for multiple clients. Began collecting and analysing campaign performance data, which led to the discovery of Data Analysis as a career path and a self-directed transition into the field.

Education

Data Analyst from Zero to Middle
Netology (Нетология)
Oct 2022 — Apr 2023
Biotechnical Systems and Technologies
Unfinished Bachelor's Degree
Tomsk Polytechnic University
Sep 2014 — Jun 2017
Contact
Location
Belgrade, Serbia
Twitter / X
YouTube
Tech Stack
Databases
ClickHouse PostgreSQL MySQL
Orchestration & Modelling
dbt Apache Airflow
Analytics & BI
Apache Superset Holistic Looker Tableau PostHog Google Sheets
Programming
Python SQL REST APIs
Languages
English Full Professional
Russian Native / Bilingual
By the Numbers
5+
Years in Data
20
People Led (max)
3
Countries Worked
3
Depts Built from 0
Open to Opportunities

Available for Head of Data, Lead Analyst, or senior consulting roles.

Get in Touch