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Helton D.HD

Helton D.

Data Analyst | SQL, Python, Power BI | KPI

€250/day
Paris, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Helton

Manager, B2B consultant, e-merchant — in every role of my career, I have driven with data without having the title. Today, I am training as a Data Analyst (RNCP level 6, diploma December 2026), and I am putting this dual expertise to work for your projects.

What sets me apart: 10 years at the crossroads of commerce, management, and analytics. I have managed advertising budgets by optimizing ROAS, built weekly dashboards for teams of 8 people, and tracked B2B sales cycles using real data. This is not theory — this is what I have concretely done.

Assignments: data cleaning and structuring, exploratory analysis, SQL queries on business databases, dashboard creation, reporting. I work remotely, I deliver cleanly, I communicate clearly
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Freelance / Indépendant
    E-commerce & Data Analyst | Shopify, Google Analytics, Ads
    E-COMMERCE
    January 2022 - Today (4 years and 5 months)
    Paris, France
    • Creation and management of several e-commerce stores (Shopify) with monitoring of commercial and marketing performance.
    • Data analysis via Google Analytics and Shopify Analytics: traffic, conversion rates, average order value, user behavior.
    • Management of advertising campaigns (Google Ads, Meta Ads, TikTok Ads) with optimization based on KPIs (ROAS, CAC).
    • Identification of growth levers and data-driven decision-making.
    • SEO optimization and continuous performance improvement through a data-driven approach.
    Google Analytics SEO Data Analysis KPI Microsoft Excel
  • Hubside Store
    Assistant Manager | KPI Management & Reporting
    RETAIL (SMALL BUSINESS)
    January 2023 - July 2024 (1 year and 6 months)
    Paris, France
    • Operational management of a team of 8 people with monitoring of individual and collective performance.
    • Analysis of key indicators (revenue, conversion rate, average order value) to identify areas for improvement.
    • Creation of regular reports in Excel (pivot tables, KPI tracking) to manage activity and facilitate decision-making.
    • Implementation of data-driven management: performance tracking, identification of discrepancies, and adjustment of actions.
    • Contribution to continuous improvement of results through an analytical and business-oriented approach.
    Microsoft Excel KPI Data Visualization Business Analysis Data Analysis
  • Hubside Store
    Sales Advisor | Performance Analysis
    RETAIL (SMALL BUSINESS)
    September 2022 - January 2023 (4 months)
    Paris, France
    • Analysis of sales performance based on key indicators (sales, conversion rate, average order value) to optimize sales actions.
    • Monitoring and management of a client portfolio with strategy adaptation based on observed results.
    • Contribution to performance improvement through an approach based on field data and KPIs.
    • Participation in the onboarding of new employees by transmitting best sales practices.
    • Results-oriented experience, analysis, and continuous performance improvement.
    Microsoft Excel Data Analysis KPI Business Analysis

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Education

  • Bachelor Data Analyst
    OpenClassrooms
    2026
    Formation Data Analyst (RNCP niveau 6) basée sur des projets concrets avec SQL, Python (Pandas, NumPy), Excel et Power BI. Manipulation complète de la donnée : extraction (SQL), nettoyage, transformation, analyse exploratoire et visualisation (Matplotlib, Seaborn, dashboards Power BI). Travail sur des cas réels : analyse de ventes, création de bases de données relationnelles, reporting KPI et études statistiques (tests, corrélations, séries temporelles). Approche orientée métier : transformation des données en insights exploitables pour la prise de décision.
  • BTS Management of Commercial Units
    EMSCA Serris
    BTS Management des Unités Commerciales

Skill set

Categories