Ahmed Tchagnaou

Experience

A data engineer in IT services since 2022, I work on major account projects. With a background in Software Engineering complemented by a Master’s in Big Data Management and Analytics, I have developed solid expertise in large-scale data processing, pipeline integration and migration, and automation. I aim to grow into a full-stack data profile, deepening my knowledge of AI/ML and modern data system architectures.

CGI — Société Générale

Data Engineer

Oct 2025 - Present

Responsibilities:

  • Maintain and evolve existing data pipelines built with Talend Big Data and Spark
  • Migrate Talend Big Data processing jobs to Spark Scala in order to modernize workflows and improve maintainability
  • Automate operational playbooks with AWX to improve the reliability of recurring tasks
  • Maintain and monitor CI/CD pipelines with GitHub Actions and JFrog to streamline deployment workflows
  • Contribute to technical quality, processing reliability, and production support for operational data flows
Spark Scala AWX GitHub Actions JFrog SQL Server
CGI — Covéa

Data Engineer

Jan 2022 - Sep 2025

Responsibilities:

  • Designed and developed new data integration and transformation pipelines in a data lake environment
  • Played a key role in the migration from Talend 7 to Talend 8 as part of the transition from CDH to CDP
  • Resolved defects and optimized performance on data processing jobs identified as critical
  • Produced reverse engineering documentation and technical documentation for existing solutions to improve readability and maintainability
  • Developed internal tools to improve team productivity and automate recurring technical tasks
  • Conducted code reviews, knowledge transfer, and team support on technical topics
  • Wrote functional and technical specifications to frame and secure solution changes
Talend Big Data Jenkins Bitbucket Cloudera CDH/CDP
Université de Tours

Research Assistant

Sep 2021 - Aug 2022

Responsibilities:

  • Conducted a literature review on sentiment analysis and text classification techniques
  • Designed and developed Daxmod, a toolkit dedicated to data and text classification
Python Scikit-Learn TensorFlow