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Aleksandr
@robin_zone
Senior Data Analyst, Power BI, Python and SQL Expert
Frankreich
Englisch
Über mich
Data Analyst & BI Developer with 15+ years in marketing analytics, including a decade optimizing performance for major telecom networks. I eliminate guesswork by building automated pipelines that uncover budget waste, reduce CPA, and maximize ROI. Struggling with messy spreadsheets or siloed data? I transform them into clean, interactive Power BI dashboards. My focus is absolute precision and delivering insights that directly impact revenue. Technical Stack: Power BI, SQL, Python, GA4, Excel.
Kompetenzen
Aleksandr
offline •
Durchschnittliche Antwortzeit: 1 Stunde
Meine Dienstleistungen
Daten-Dashboards
I will build an interactive power bi dashboard and data report
Flyer-Design
I will do technical prepress and make your file print ready
Portfolio
Arbeitserfahrung
Marketing Analyst & Project Manager
Tele2 • Vollzeit
Jun 2015 - Nov 2025 • 10 yrs 5 mos
Key Achievements & Responsibilities: Data-Driven Campaign Management: Led full-cycle B2B and B2C marketing campaigns, shifting the approach from intuition to rigorous performance evaluation. Monitored and optimized budgets (€100k–€500k+), focus areas included reducing CPA, increasing Customer Lifetime Value (LTV), and maximizing overall ROI. Advanced Analytics & Automation: Developed and deployed automated KPI systems and interactive dashboards from scratch using Power BI and SAP ERP. Leveraged Python and SQL to process large datasets, run cohort analysis, and uncover hidden budget waste, eliminating manual monthly Excel reporting. A/B Testing & Optimization: Built a structured framework for hypothesis testing. Conducted statistical A/B tests on digital channels and customer journeys, ensuring new marketing ideas were validated on a small scale before deploying major budgets. Performance Audit: Continuously analyzed marketing funnels and customer behavior to identify friction points. Even a 1% optimization in targeted metrics translated into significant cost savings and revenue growth due to the telecom scale. Vendor & Stakeholder Management: Handled end-to-end vendor selection (tenders), contract negotiations, and timeline control, ensuring all data-driven marketing assets were delivered on time and strictly within budget. Tools used: Python, SQL, Power BI, SAP ERP, Google Analytics, Advanced Excel.
