Freelancer profile translated to English.
Back to original languageAbout Bastien
Senior freelance Data Engineer, I help teams regain control over cloud or hybrid data platforms that have become difficult to operate.
I intervene when the platform becomes a bottleneck instead of a lever: excessively long processing, recurring incidents, technical debt, fragile deployments, lack of industrialization or monitoring.
• Incident recovery time reduced from half a day to less than 10 minutes on a hybrid GCP / SQL Server chain
• Processing time reduced from 4 hours to 25 minutes on a critical SQL Server / SSIS pipeline
I work on GCP, Azure, SQL Server, and Python. If your data platform is in this situation, I am available to discuss it.
French
Native or bilingual
English
Fluent
Can work on-site
Montpellier (up to 20km), Paris (up to 20km), Lyon (up to 20km), Toulouse (up to 20km)
Experience
- CapgeminiSenior Data Engineer | GCP & Hybrid Data Platforms | Mission for OrangeTELECOMMUNICATIONSJune 2023 - December 2025 (2 years and 6 months)Montpellier, FranceData engineer within a strategic hybrid GCP / SQL Server platform, with a role focused on reliability, industrialization, and operational simplification.
- Elimination of a systemic failure point across over 80 sourcing flows: complete redesign of orchestration so that an isolated incident no longer blocks the entire chain. Recovery time reduced from half a day to less than 10 minutes.
- Redesign of a central SQL Server / SSIS pipeline that had become too slow with increased load: rationalization of DataMart access, simplification of business logic. Processing time reduced from 4 hours to 25 minutes.
- Reference for the GCP scope: technical scoping, onboarding new joiners, leading skills development workshops, and disseminating platform standards.
- CGICloud Data Consultant | Azure, Snowflake, DevOpsCONSULTING AND AUDITSJanuary 2021 - May 2023 (2 years and 4 months)Montpellier, FranceIntervention in two demanding contexts in finance and aeronautics (Pernod-Ricard, Airbus), with a common thread: data platform reliability, flow industrialization, and deployment automation.
- Adaptation of about ten SQL flows on Snowflake after a major source change in a group financial scope, without continuity disruption on key data.
- Design of Snowflake pipelines to consolidate data from heterogeneous information systems and ensure reporting reliability.
- Migration of Azure Data Factory pipelines to ADLS Gen2 in a critical industrial environment.
- Design of an SQL procedure automation system to eliminate risky manual interventions during deployments.
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Education
- Certified: Azure Data Engineer Associate (DP-203).MicrosoftCertified : Azure Data Engineer Associate (DP-203).
- Master in Computer Science – Data, KnowledgeUniversity of Montpellier2021Master Informatique – Données, Connaissances