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Kelly GalesneKG

Kelly Galesne

Senior DBA ORACLE, SQL SERVER, MySQL

€800/day
Évry, FR
15+ years
Oracle Database
SQL Server
MySQL/MariaDB
PostgreSQL
Cloud AWS

Average response time: 1 hour

Freelancer profile translated to English.
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About Kelly

Senior DBA with over 20 years of experience, I support companies in the administration, security, and optimization of their critical database environments.

Throughout my career, I have worked on complex, high-availability infrastructures using technologies such as Oracle, SQL Server, PostgreSQL, and MySQL, both on-premise and in the cloud.

My interventions include:

  • Administration and production support
  • Performance optimization and troubleshooting
  • Database migration and upgrade
  • Backup, restore, and high availability
  • Environment audit and security
  • DBA task automation (Shell, PowerShell, Python)
  • Cloud support (AWS, Azure, OCI)
  • L2/L3 support and critical incident management

Accustomed to demanding environments, I am recognized for my analytical skills, rigor, and calmness in solving complex problems.

In parallel to my DBA expertise, I am also developing skills in Data Engineering, automation, and AI applied to data infrastructures.

Based in France, I am available for remote or hybrid assignments.

  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Évry (up to 50km)

Experience

  • INSEAD (ECOLE DE COMMERCE)
    DBA ORACLE
    January 2012 - January 2025 (13 years)
    2777 S Las Vegas Blvd, Las Vegas, NV 89109, USA
    Production - MCO :
    • Incident management L2/L3: analysis of Oracle alert logs, SQL Server Error logs, troubleshooting of blocks, deadlocks, and performance incidents.
    • Performance tuning: AWR / ASH analysis, execution plan optimization, Query Store, indexing strategy.
    • Backup and restore management: RMAN, FULL / DIFF / LOG strategies, DB Snapshots, regular restore tests.
    • Application of Critical Patch Updates (Oracle) and Cumulative Updates (SQL Server), rolling upgrades Always On, obsolescence management.
    • Automation of recurring tasks via Ansible, PowerShell, Python, and Shell scripts.
    • Monitoring: site24/7 (Zoho), AWS CloudWatch, Oracle Cloud Monitoring, SQL Server Agent Alerts, proactive alerting setup.
    • Setup, maintenance, and testing of Disaster Recovery Plans (DRP): Data Guard, Always On Availability Groups, Log Shipping.

    Projects:
    • Cloning and industrialization of environments (automation via RMAN, scripts, DACPAC).
    • Setup and maintenance of on-premise and cloud database architectures (AWS, Azure, OCI).
    • Architecture validation (MCD/MPD, physical model consistency).
    • Capacity planning and load testing.
    • Deployment of infrastructure and DBMS components in production (CI/CD integration).
    • 2024–2025 Oracle data ecosystem and associated components) Oracle Cloud Infrastructure (OCI).

    Technical environment: Oracle, MySQL, Linux, Nagios.
    Oracle Database SQLServer MySQL Cloud AWS Cloud Azure
  • MINISTERE DE LA JUSTICE
    DBA Oracle
    October 2007 - June 2010 (2 years and 8 months)
    • Installation and configuration of Sybase ASE 12.5 and Replication Server 11.6.
    • Database creation and implementation of replication mechanisms (replication definition, materialization, subscription creation, flow opening and monitoring).
    • Setup of a replication architecture covering 187 prison sites spread across 16 Replication Servers.
    • Resolution of incidents related to replication flows and monitoring of inter-site exchanges.
    • Management of data loading and consolidation from 187 sites to a national Sybase database.
    • Integration of consolidated data into Oracle via Data Integrator (Business Objects).
    • Administration of Oracle environments (10g, 11g) in
    Oracle Database Sybase ASE Linux RedHat HP-UX SAP Business Objects
  • GÉNIGRAPH
    DBA Study (PL/SQL
    July 2006 - January 2007 (6 months)
    • Review and optimization of PL/SQL code (complex queries, joins, execution plans, cardinality analysis).
    • Optimization of the physical model: partitioning, indexing strategy, data type rationalization.
    • Improvement of I/O performance through tablespace optimization and segment management.
    • Structuring and long-term sustainability of the data model for scalability.
    • Participation in unit tests and load tests.
    • Level 2 support in a production environment.
    PL/SQL Oracle
Check out Kelly's experience

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Education

  • Bachelor of Science
    University of North London
    1999
    Bachelor of Science
  • AWS Data Engineering Certification
    Udemy/AWS
    2026
    AWS Data Engineering Certification
Check out Kelly's education

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