[6285] SQL Databse Administrator

Start date: Negotiable
Clearance: NATO Secret
Location: Brussels, Belgium

Requirements

• The candidate must have a currently active NATO SECRET security clearance
• 5+ years hands-on experience in at least one of the above database technologies (MySQL or PostgreSQL) and 2+ years of experience in the second database technology (MySQL or PostgreSQL)
• MySQL: Strong knowledge of MySQL architecture, storage engines (InnoDB); Hands-on experience with backup tools like mysqldump, MySQL shell, Percona, XtraBackup
• PostgreSQL: Deep understanding of PostgreSQL internals; Experience managing large datasets, storage growth, autovacuum and index maintenance; Experience with WAL and archiving; Experience managing PostgreSQL extensions
• Experience with SQL optimization, indexing, and query execution plans.
• Strong Linux administration skills (system resources, I/O, file systems, network basics) relevant to database performance.
• Knowledge of security best practices (TLS, privilege management, audit/logging, secure configuration).
• Automation mindset: experienced with scripting (Bash/Python/Perl).

Preferred/Advanced skills:
• MySQL: Experience with cloud-managed MySQL platforms (AWS RDS/Aurora, GCP Cloud SQL, Azure Database for MySQL); Familiarity with MySQL Shell, Orachestrator, ProxySQL or HAProxy
• PostgreSQL: Practical experience with pgvector; Knowledge of HNSW and IVFFlat indexes and their tuning parameters; Experience with containerized or Kubernetes-based database deployments; Understanding of pgvector upgrades and compatibility with PostgreSQL versions