Freelancer profile translated to English.
Back to original languageAbout Marie
Are you experiencing slowness, recurring incidents, or do you want a status of the security risks on your databases?
I intervene to stabilize, accelerate, and secure your critical environments.
Objective: reduce response times, limit interruptions, secure sensitive access, and make your architectures reliable (Oracle, PostgreSQL, SQL Server, ...).
Concrete, measurable actions with a direct impact on performance, service continuity, and operating costs.
French
Native or bilingual
English
Fluent
Spanish
Conversational
Can work on-site
Paris (up to 50km), Strasbourg (up to 50km), Metz (up to 50km)
Experience
- Rousselet Data Industries (RDI)Senior DBA – Performance, Security & Critical Environments | FreelanceJanuary 2026 - Today (5 months)Independent consultant specializing in the administration, performance, and security of critical databases (Oracle, PostgreSQL, SQL Server).I work with organizations that have strong challenges in availability, performance, and compliance, particularly in high-demand contexts (telecom, public sector, large accounts).Main missions:• Performance audit and advanced optimization (execution plan analysis, SQL tuning, response time reduction)• Access security and sensitive privilege review• Architecture diagnostics (RAC, Data Guard, clusters, PaaS)• Implementation of best operating and supervision practices• Reduction of operational risks and improvement of service continuityPragmatic approach, oriented towards measurable results: reduction in processing times, fewer incidents, improved stability, and cost control.Available for high-value-added freelance missions.
- Proximus LuxembourgSENIOR ORACLE DBATELECOMMUNICATIONSOctober 2024 - Today (1 year and 8 months)Bertrange, Luxembourg- Performance and security audit- Architecture- Supporting teams on guidelines/training
- Université de LorraineAdjunct ProfessorJanuary 2022 - January 2026 (4 years)Nancy, France- Courses on performance and best practices in SQL for first-year MASTER MIAGE students- Data modeling courses for third-year license students
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Education
- MASTER MIAGEInstitute of Digital and Management Sciences2020MASTER et LICENCE
- DUT InformatiqueUniversity of Lorraine - Saint Dié des Vosges2017DUT Informatique