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DBA SQL Server - PostgreSQL Database Administrator - Freelance (M/F)

Collective.workParisEURESpublished 09/11/2026
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Machine translation — original language: French.Show original

CONTEXTE

We are looking for a SQL Server - PostgreSQL Database Administrator (M/F) for one of our clients. You will play a key role in managing, securing, and optimizing data infrastructures. You will ensure the availability, integrity, and performance of databases, while collaborating closely with technical and business teams.

MISSIONS

  • Administer and maintain databases (SQL Server, Oracle, MySQL, etc.) while ensuring their performance and security.
  • Design, implement, and optimize database architectures to meet user needs.
  • Write and execute scripts for maintenance, backups, and data restoration.
  • Monitor database performance and resolve technical issues.
  • Collaborate with developers to optimize queries and database schemas.
  • Document database procedures and configurations.
  • Participate in the planning and implementation of data infrastructure evolution projects.
  • Maintain technological watch to anticipate future evolutions and needs.

OUTILS & ENVIRONNEMENT

  • Microsoft SQL Server
  • MongoDB
  • MySQL
  • Oracle Database
  • PostgreSQL

CONDITIONS DE TRAVAIL

  • Mission location: Paris
  • Long-term mission
  • 2 days of remote work per week
  • Start date: ASAP
  • Professional English mandatory

PROFIL DU CANDIDAT

  • Minimum 8 to 10 years of experience in database administration (SQL Server, Oracle, MySQL, PostgreSQL, etc.).
  • Deep knowledge of query languages (SQL, PL/SQL, T-SQL).
  • Minimum 8 to 10 years of experience in database design, implementation, and optimization.
  • Ability to manage data backups, restoration, and replication.
  • Knowledge of best practices regarding data security and access management.
  • Ability to work in a team and collaborate with developers, analysts, and other stakeholders.

ATOUTS SUPPLÉMENTAIRES

  • Minimum 8 to 10 years of experience in NoSQL database knowledge (MongoDB, Cassandra, etc.).
  • Knowledge of database monitoring and performance tools.
  • Certifications in database administration (Microsoft, Oracle, etc.).
  • Minimum 8 to 10 years of experience in cloud environments (AWS, Azure, Google Cloud).
  • Knowledge of Agile methods and DevOps practices.

QUALITÉS PERSONNELLES

  • Rigor and attention to detail.
  • Ability to solve complex problems.
  • Excellent communication and time management skills.
  • Ability to work under pressure and meet deadlines.
  • Intellectual curiosity and willingness to learn new technologies.
  1. Minimum 8 to 10 years of experience in database administration (SQL Server, Oracle, MySQL, PostgreSQL, etc.)
  2. Deep knowledge of query languages (SQL, PL/SQL, T-SQL)
  3. Minimum 8 to 10 years of experience in database design, implementation, and optimization
  4. Ability to manage data backups, restoration, and replication
  5. Knowledge of best practices regarding data security and access management
  6. Ability to work in a team and collaborate with developers, analysts, and other stakeholders
  7. Minimum 8 to 10 years of experience in NoSQL database knowledge (MongoDB, Cassandra, etc.)
  8. Knowledge of database monitoring and performance tools
  9. Certifications in database administration (Microsoft, Oracle, etc.)
  10. Minimum 8 to 10 years of experience in cloud environments (AWS, Azure, Google Cloud)
  11. Knowledge of Agile methods and DevOps practices
  12. Rigor and attention