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Bamogo SalifouBS

Bamogo Salifou

Confirmed Data Engineer & Data Analyst BI

€450/day
Vélizy-Villacoublay, FR
3-7 years

Average response time: 1 hour

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About Bamogo

Confirmed Data Engineer & Data Analyst BI with solid experience in data engineering, business intelligence, and data quality, particularly in complex HR and business environments. I work across the entire data chain: ingestion, transformation, and modeling (Python, SQL, Snowflake, dbt), datamart creation, and BI reporting development (Power BI). Accustomed to collaborative environments, I combine technical expertise, business understanding, and data project management to deliver reliable, useful, and decision-oriented solutions.
  • French

    Native or bilingual

Can work on-site
Vélizy-Villacoublay (up to 50km)

Experience

  • Nestlé France - Equipe People Analytics-
    Confirmed Data Engineer & Data Analyst
    September 2023 - August 2025 (1 year and 11 months)
    92130 Issy-les-Moulineaux, France
    • Design and optimization of ETL/ELT pipelines (SAP, SuccessFactors, SharePoint, semi-structured files) with workflow automation and data quality control
    • Cloud integration of pipelines with Snowflake (staging, transformations, streams/tasks) and AWS (S3, Lambda)
    • Construction and maintenance of analytical pipelines for datamarts and Power BI datasets: dependencies, parameterized artifacts, refresh optimization
    • Design of Power BI dashboards connected to Snowflake: gathering business requirements, KPI definition, modeling, and visualization
    • Development and optimization of data transformation and validation algorithms (imputation, checks, anomalies, matching, aggregation, standardization) implemented in Snowflake (Tasks, UDF, scaling)
    • Deployment of predictive models (Python & SQL): automated feature engineering, orchestration (AWS Lambda / Snowflake Tasks), inference tables, and BI exposure
    • Data & BI RUN Management: pipeline monitoring, refresh supervision, incident management, performance optimization
    • Orchestration and documentation of Data Engineering workloads: versioning, CI/CD, best practices, technical documentation, and DataOps compliance
    • Contribution to the Data ecosystem: batch scripts, automation, refactoring, Snowflake optimization, continuous improvement (Jira, Confluence)
    ETL Processes Python & Power BI Data Integration Cloud & Data Warehouse Project Management
  • CNRS - Equipe Projet POLECOWWII
    Data Engineer
    April 2023 - September 2023 (5 months)
    Lille, France
    • Development of automated ETL pipelines for extracting and transforming textual data from the BnF
    • Design of Python scripts for structuring, normalizing, cleaning, and converting data into standardized formats
    • Implementation of advanced Data Cleaning & Data Quality procedures: consistency checks, data validation, deduplication, harmonization via fuzzy matching
    • Centralization and consolidation of data into a unified dataset for statistical analysis of the research project
    • Construction of SQL tables (SQLite) and generation of structured CSV files to facilitate reuse and analysis
    • Complete documentation of data ingestion, transformation, and quality control processes
    • Close collaboration with the interdisciplinary research team to ensure the quality, reliability, and usability of historical data
    • Delivery of final datasets in SQL and CSV formats, accompanied by detailed technical documentation
    Python & Power BI Data Integration Cloud & Data Warehouse Data Cleaning and Preprocessing Databases: SQL Server, PostgreSQL, Snowflake, PySpark
  • Université Clermont Auvergne
    DATA ENGINEER & ANALYST
    January 2023 - March 2023 (2 months)
    Clermont-Ferrand, France
    • Development of an automated ETL/ELT pipeline for collecting, transforming, and structuring Hacker News data via web scraping
    • Automation of continuous extraction of articles, votes, scores, and user profiles (Scrapy, Requests, BeautifulSoup)
    • Cleaning, normalization, deduplication, consistency checking, and data quality improvement
    • Modeling and optimization of SQL tables (SQLite) and export of consolidated datasets in CSV format
    • Construction of analytical tables serving as a basis for statistical analyses and visualizations
    • Performing statistical analyses: user activity, temporal trends, vote dynamics, time to appear on page 1, post rotation time
    • Anomaly detection and analysis of article trajectories (score variations, persistence, double submission)
    • Production of analytical visualizations for exploring and interpreting results
    • Technical stack: Python (Pandas, NumPy, Scrapy, Requests), SQL (SQLite), ETL/ELT, CSV, Matplotlib, Seaborn
    Databases: SQL Server, PostgreSQL, Snowflake, PySpark ETL Processes Web Scraping Python & Power BI Data Integration

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Education

  • Master of Data Science
    Université Clermont Auvergne
    2023
    Master Sciences des Données
  • Bachelor of Computer Methods Applied to Business Management
    Université Clermont Auvergne
    2021
    Licence Méthodes Informatiques Appliquées à la Gestion des Entreprises

Skill set

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