Erdni Kuleshov
@erdnikuleshov
I build scalable telecom data platforms and ETL pipelines processing billions of records.
Russian FederationWhat I'm looking for
At MegaFon, I build production ETL pipelines that process billions of telecom records each month for 10–15 million subscribers. I design data marts, Airflow orchestration, and Spark workloads that make reporting reliable, scalable, and maintainable.
I've helped reduce reporting time from about one month to 10 days, redesigned an MVP into a fault-tolerant retail ETL platform, and scaled processing across 11 time zones for more than 3,000 employees and 1,000 retail stores. As a Technical Lead, I coordinate a team of three engineers while partnering with stakeholders on data quality and SLA compliance.
My earlier analytics work at Otkritie, RAMBLER&Co, and Mobio helps me translate business requirements into practical technical solutions. I enjoy solving challenging data engineering problems, improving existing platforms, and building dependable data-driven products.
Experience
Work history, roles, and key accomplishments
Senior Data Engineer
Megafon
Jun 2022 - Present (4 years 2 months)
Led a team of engineers in designing and implementing data pipelines for corporate reporting and retail performance platforms. Optimized Spark workloads and reduced reporting time from ~1 month to ~10 days.
**Senior Data Engineer / Technical Lead**
### Corporate Reporting Platform
* Started as a Data Engineer and later took on the role of Technical Lead, coordinating a team of three engineers.
* Designed and implemented data pipelines to derive monthly home and work locations of mobile subscribers from raw telecom network events.
* Developed and maintained production ETL pipelines processing **bill
- Made complex SQL-queries and calculated various inner bank metrics for reporting purposes
- Visualized and automated reports
Led a group of analysts and managed data analysis projects.
- Led a group of 3 analysts, formulated action plans, prioritized and distributed tasks, supported team
problem solving;
- Created dashboards with product metrics via Apache Superset + ClickHouse;
- Created complex SQL-queries, constantly looked for opportunities to improve data quality, optimize data transformation, add new useful calculated fields, find bugs etc.;
- Controlled A/B-tests conducti
Data Analyst
Mobio
Apr 2018 - Apr 2020 (2 years)
Developed a B2B platform for mobile app advertising automation and contributed to mobile app tracker development. Automated information collection for reports and managed financial indicators.
- Developed of B2B-platform for mobile app advertising automation. Contributed to mobile app
tracker development. Interacted with customers, collected requirements from all stakeholders, made technical tasks for developers;
- Automated information collection for reports (via Google App Script, Python and API integration with third-party services). Handled reports visualization for internal and ext
Education
Degrees, certifications, and relevant coursework
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Бакалавр, Информатика и вычислительная техника
2011 - 2015
Tech stack
Software and tools used professionally
Availability
Location
Russian FederationAuthorized to work in
Job categories
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