Freelancer profile translated to English.
Back to original languageAbout Aleksandr
Data solutions developer and ETL specialist with over 15 years of technical experience, particularly in optimizing data infrastructures within large telecommunications networks. I specialize in creating reliable data pipelines, writing complex automation scripts, and modeling decision-making architectures.
Accustomed to collaborating with digital agencies, IT consulting firms, and senior consultants, I provide autonomous technical support (subcontracting). I quickly integrate into your production processes and tools (Slack, Jira, Notion) and work asynchronously based on precise specifications. My code is clean, documented, and structured according to industry standards.
Technical Expertise:
- **Data Pipelines & ETL**: Writing and optimizing data processing scripts (Python, SQL, Power Query).
- **Databases**: Relational modeling, complex queries, data extraction (SQL, BigQuery, SAP ERP).
- **Business Intelligence**: Developing advanced DAX models and integrating industrial dashboards (Power BI, Advanced Excel).
French
Fluent
English
Fluent
Russian
Native or bilingual
Can work on-site
Clichy (up to 50km)
Experience
- Tele2Senior Data Engineer & BI Project ManagerTELECOMMUNICATIONSJune 2015 - November 2025 (10 years and 5 months)
- **BI Architecture & Integration**: Design, deployment, and maintenance of end-to-end Business Intelligence (BI) architectures and integration of SAP ERP with Microsoft Power BI.
- **ETL Pipelines & Automation**: Processing massive data volumes and complete automation of ETL flows via Python and SQL, eliminating manual reports and identifying structural anomalies.
- **Data Modeling**: Optimization of database performance and development of complex relational data models.
- **Quality & Statistical Testing**: Implementation of statistical testing frameworks (A/B testing) to ensure and validate data reliability before production.
**Mastered Tools**: Python, SQL, Microsoft Power BI, SAP ERP, Google Analytics (GA4), Advanced Excel. - PMCGMarketing & Operations Projects DirectorJanuary 2010 - January 2015 (5 years)
- **Digital Infrastructure Management**: Operational management and process control during the deployment of B2B/B2C digital platforms and automated loyalty systems.
- **Operational Cost Optimization**: Continuous monitoring and audit of internal spending structure, optimization of project cost of goods sold, and rigorous budget management.
- **Coordination & Negotiation**: Conducting complex commercial and technical negotiations, coordinating cross-functional project teams and partner departments.
- Advertising Agencies / PrintingAccount & B2B Projects ManagerJanuary 2002 - January 2010 (8 years)
- **Logistics Flow Management**: End-to-end control of the project lifecycle and coordination of the resource supply chain within strict deadlines.
- **Financial Control & Reporting**: Audit, allocation, and rigorous control of the execution of operational budgets for technology and advertising campaigns.
- **Technical SLA Management**: Managing relationships with key service providers and major suppliers, monitoring compliance with commitments according to strict SLA criteria.
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Education
- Bachelor of Science (B.Sc.) in Multi-Channel Telecommunication SystemsSaint Petersburg State University of Telecommunications2000
- Data Analytics CertificationSkillbox Online University2024Python, SQL, Microsoft Power BI