Freelancer profile translated to English.

Description

DBA Oracle with over 10 years of experience in production environments and PostgreSQL DBA for over 3 years, I have supported large international groups in the Interim, Telecoms, Logistics, Automotive, and Finance sectors.

I supportMajor Accounts, Medium-sized Businesses, and IT Service Companiesin their database infrastructure administration, optimization, and security projects.

I am involved in the entire lifecycle of your databases, both in operational maintenance and in the context of migration, evolution, and infrastructure modernization projects, on a dedicated, fixed-price, or planned 24/7 on-call basis.

I am particularly involved in:

✔ Oracle and PostgreSQL administration in production

✔ L3 Support and critical incident resolution

✔ Performance Tuning (SQL, database, and architecture)

✔ High Availability: Oracle RAC, Data Guard, PostgreSQL HA

✔ Backup, restore, and Disaster Recovery (RMAN, logical and physical dumps)

✔ Oracle migrations, upgrades, and transformation projects

✔ Automation and industrialization of DBA operations via Ansible

✔ Planned 24/7 on-call duty

Examples of achievements:

— Oracle cross-platform 19c → 21c migration of 2 TB (Windows to Linux) using the FTEX method with reduced downtime.

— Complete industrialization of Oracle 19c patching via Ansible (Infrastructure-as-Code playbooks, multi-server rolling patching, DEV/TEST/PROD standardization)

— Deployment and operation of PostgreSQL High Availability clusters with streaming replication and automatic failover

Technical Environment:

Oracle 12c/19c/21c • PostgreSQL • RAC • Data Guard • RMAN • Ansible • OEM • Linux • Windows Server

Based in Île-de-France,I work on-site, in hybrid mode, or remotely depending on project needs.

I generally respond to Malt requestswithin the day.

Looking forward to discussing your project.

Industry field of expertise

Languages

French
Native or bilingual
English
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 50km), Lyon (up to 50km), Marseille (up to 50km), Lille (up to 50km), Bordeaux (up to 50km)

INDEPENDANT
Freelance DBA Consultant
CONSULTING AND AUDITS
April 2026 - Today (4 months)
Paris, France
Freelance Oracle & PostgreSQL DBA — Production · L3 Support · 24/7 On-Call
I support Major Accounts, Medium-sized Businesses, and IT Service Companies in the administration, optimization, and security of their Oracle and PostgreSQL environments.

I work on long-term dedicated contracts, fixed-price projects (migration, audit, performance tuning), or planned 24/7 on-call duty, in Île-de-France and remotely.

My responsibilities include:
✔Ensuring the operational maintenance of critical Oracle and PostgreSQL environments
✔Resolving complex incidents in L3 Support
✔Optimizing database performance (SQL, architecture, configuration)
✔Performing technical audits, Oracle and PostgreSQL migrations, and upgrades
✔Designing, implementing, and validating backup, restore, and disaster recovery procedures (RMAN, PostgreSQL).

✔Designing, deploying, and operating High Availability architectures (Oracle RAC, Data Guard, PostgreSQL HA).
✔Industrializing DBA operations via Ansible (patching, deployment, configuration).

✔Participating in 24/7 on-call shifts for critical infrastructures

Value provided:
I bring an approach focused on availability, performance, automation, and risk reduction to secure production environments while facilitating their evolution.

Environments:
Oracle 11g/12c/19c/21c • PostgreSQL • Oracle RAC • Data Guard • RMAN • Ansible • Linux • Solaris
Database Migration Disaster Recovery Operational Maintenance On-call Duty Troubleshooting
Adecco France
Prod DBA
HUMAN RESOURCES
January 2023 - January 2026 (3 years)
Lyon, France
Within the Adecco France DBA team, I provided L3 Support for about fifty Oracle and PostgreSQL production databases in a Franco-Indian context. My mission was to ensure the availability of database services, support evolution projects, and industrialize administration operations.

Major projects delivered:

✔Industrialization of Oracle 19c patching via Ansible with an Infrastructure-as-Code approach (structured playbooks, idempotent logic, multi-server rolling patching) to ensure reliable maintenance operations, standardize DEV/TEST/PROD deployments, and reduce manual interventions.
Result:Reliable maintenance operations, reduced manual interventions, and improved traceability of Release Updates.

✔Oracle 19c → 21c cross-platform migration (2 TB) — Technical lead for the Windows → Red Hat Linux migration using the FTEX method (Full Transportable Export/Import).
Result:Downtime limited to the final switchover phase, minimized unavailability window compared to a classic Export/Import approach.

✔Deployment and operation of PostgreSQL HA clusters with streaming replication and automatic failover, industrialized via Ansible.
Result:Standardization of deployments, improved configuration reproducibility, and reduced time-to-production.

Additional interventions:

✔Oracle (RMAN) and PostgreSQL backups and restores.
✔Oracle and PostgreSQL Performance Tuning.
✔Technical audits.
✔OEM / PRTG Monitoring.
✔Access administration and change management.

Environments:

Oracle 12c/19c · PostgreSQL 16 · Ansible · RMAN · OEM · PRTG · Red Hat Linux · Windows Server 2019 · CyberArk · Commvault
Infrastructure as Code Ansible Oracle Database PostgreSQL
Volkswagen
Prod DBA
AUTOMOBILE
September 2021 - September 2022 (1 year)
Porto, Portugal
Oracle DBA Studies & L3 Support — Volkswagen France via Capgemini Engineering

Within the Volkswagen France project teams, I supported the application teams in the evolution and optimization of approximately 80 Oracle databases, in a multinational Scrum/ITIL environment. My role was to improve database performance and support development on SQL and modeling topics.

I was particularly involved in:

✔Optimizing the performance of large tables through Oracle partitioning.

✔Designing and evolving data structures (tables, indexes, views, and stored procedures) to support the needs of application teams.

✔Analyzing SQL performance and locking issues.

✔Deploying SQL evolutions in the production environment and supporting project teams during application changes.

✔Maintaining Oracle statistics to ensure efficient execution plans.

✔Performing schema export/import operations and supporting data migrations between environments.

Value provided:
Improved Oracle database performance, optimized SQL processing, and supported development teams to ensure reliable application evolutions.

Environment:

Oracle 19c • Oracle Linux • OEM 13c • SQL*Plus • TOAD • Citrix
Oracle Database Linux Citrix PL/SQL L3 Support