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Otmane AbbasOA

Otmane Abbas

Data Analyst & Automation | Data Quality

€300/day
Lyon, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Otmane

Data Analyst specializing in automation, data quality, and the creation of reliable pipelines. I help companies collect, clean, structure, and analyze their data to make better decisions and reduce manual work.

With a hybrid background (clinical, retail, freelance projects), I work across the entire data cycle:

- Automation via Python, API, LLM, VBA
- Advanced SQL analyses (BigQuery)
- Performance-oriented Power BI dashboards
- Data quality & validation (rules, checks, Pydantic)

My approach: understand business needs, simplify workflows, ensure data reliability, and deliver actionable results quickly.
  • French

    Native or bilingual

  • English

    Conversational

  • Arabic

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Hospices Civils de Lyon
    Data Manager & Data Analyst in Clinical Research
    MEDICAL
    September 2025 - Today (11 months)
    Lyon, France
    Design and optimization of data collection and management systems in a regulated environment.

    Creation of complete eCRFs (REDCap, Ennov) and implementation of consistency rules to ensure data quality.

    Automation of import and processing pipelines via VBA, Python, and REDCap API (reduction of manual processing time).

    Data lifecycle management: export, quality control, freeze, lock, archiving.

    Coordination with medical and biostatistics teams to ensure the reliability of analyses.

    Writing of the Data Management Plan and management of randomized studies.

    Key skills: automation, data quality, API, Python, VBA, workflows, data ops, regulated environment.
    GDPR Compliance Python Data Quality Database Creation Automation
  • FREELANCE
    Freelance Data Analyst
    January 2024 - September 2025 (1 year and 8 months)
    Lyon, France
    End-to-end data project execution: collection, cleaning, automation, analysis, and visualization.

    Project 1 – Automated fundraising verification

    Web scraping to extract key financial data.

    Format normalization (dates, currencies) and advanced cleaning.

    Automation of checks via an LLM model (OpenAI API).

    Data validation with Pydantic and report generation (CSV/Excel).

    Implementation of a scoring system to evaluate the reliability of fundraising.

    Project 2 – Identifying the cheapest gas station

    Data collection from Data Gouv and cleaning in Google Sheets.

    Deployment on Google Cloud and advanced SQL analyses in BigQuery.

    Creation of interactive dashboards in Looker Studio to identify the most economical stations.

    Key skills: Python, SQL, BigQuery, Looker Studio, scraping, API, LLM, automation, data cleaning, cloud, scoring, reporting.
    Python SQL LLM Big Query Looker Studio
  • Groupe Casino
    Store Manager & Data Analyst
    RETAIL (LARGE RETAILERS)
    June 2018 - December 2023 (5 years and 6 months)
    Lyon, France
    Optimization of commercial performance through data analysis and the implementation of decision-making tools.

    Sales and transaction analysis via Excel and SQL to improve stock forecast accuracy (+40%) and reduce stockouts.

    Design of Power BI dashboards to track store performance, margins, inventory, and operational KPIs.

    Publication and automation of reports via Power BI Service to facilitate daily decision-making.

    Collaboration with regional teams to identify improvement levers and optimize operations.

    Key skills: Advanced Excel, SQL, Power BI, stock forecasting, operational optimization, commercial analysis, automated reporting.
    Microsoft Power BI SQL Commercial Analysis Stock Forecasting Automated Reporting

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Education

  • Data Analysis Training
    Wild Code School
    2023
    Formation en Data analysis
  • Master in Management and Project Management
    IAE
    2017
    Master en Management et gestion de projets

Skill set

Categories