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Diana K.DK

Diana K.

Data Analyst Power BI & Excel | Dashboards

€250/day
Lyon, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Diana

Data Analyst specialized in data analysis and predictive modeling, I help companies understand their data and make better decisions.

I create clear Power BI dashboards, clean and structure databases (Excel, CSV, CRM), automate reporting, and perform statistical analyses to identify trends, anomalies, and optimization opportunities.
I can also perform forecasts (sales, demand, risks) with Python and provide concrete recommendations, understandable even for non-technical profiles.

My goal: transform complex data into simple and useful actions for your business.
  • French

    Native or bilingual

  • English

    Native or bilingual

  • Russian

    Native or bilingual

  • Kazakh

    Conversational

Remote only
Primarily works remotely

Experience

  • Orange
    Data Analyst
    TELECOMMUNICATIONS
    January 2025 - January 2026 (1 year)
    Île-de-France, France
    Data Analyst – Orange (detailed missions)

    Data collection and preparation from various internal sources (operational databases, Excel files, CRM exports)

    Data cleaning, normalization, and structuring to make it usable (handling missing values, anomaly detection, format harmonization)

    Building interactive dashboards in Power BI: KPI tracking, time evolution, comparisons by customer segment or product

    Implementing performance indicators (usage rate, revenue, volumes, commercial performance)

    Statistical analysis to identify trends, seasonality, and atypical behaviors

    Reporting automation (data refresh, dashboard updates, reduction of manual work)

    Portfolio Evaluation & Price-Making

    Analysis of portfolio performance (customers/offers/products): profitability, average revenue, evolution over time

    Customer segmentation based on behavior and economic value

    Identification of underperforming or at-risk offers

    Simulation of the impact of pricing changes (increases, discounts, new offers)

    Data-driven pricing strategy definition support

    Operational recommendations to optimize margin and customer retention
    Microsoft Power BI data-visualization ai-and-advanced-analytics exploratory-data-analysis Python
  • Air France
    Risk Management Engineering Intern
    AVIATION AND AEROSPACE
    March 2025 - September 2025 (6 months)
    Ile-of-France, France
    • • Risk forecasting (ARIMA/SARIMA, Monte Carlo)
    • • Implementation of a scoring system to detect weak signals and prioritize critical risks
    Monte Carlo Simulations
    Data analysis of the aero domain data
    Power BI Dashboard, data visualization
    Building a new scoring method
    intelligence artificielle Analyse de risques Gestion des risques Analyse de données Data visualisation
  • Institut d'économie et de politique mondiale
    Data Analyst Intern
    May 2023 - August 2023 (3 months)
    Astana, Kazakhstan
    • • Power BI Project: statistical analysis and data visualization on the quality of life survey of the population

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Education

  • Master Money Banking Finance
    Université Paris-Cité/Université Sorbonne
    2025
    Master Monnaie Banque Finance
  • Bachelor's Degree in Mathematics and Computer Science
    University of Caen-Normandy
    2023
    Licence Mathématique et Informatique

Skill set

Categories