Freelance SQL Server Database Administrator

Koda Tech; Brussel Hoofdstad; Sur place; EUR 70 000 - 110 000; Plein temps

Résumé du poste

Koda Tech in Belgium is seeking a hands-on Database Engineer to operate and evolve a hybrid database platform spanning SQL Server, PostgreSQL, AWS and Azure. You will define, implement and maintain highly available, performant database systems, automate deployment and patching, manage backups and upgrades, review schema changes, and support performance and reliability across infra and development teams.

The role requires strong Microsoft SQL, MariaDB affinity and cloud services with

Qualifications

• Expert knowledge of SQL Server administration, performance tuning and high availability.
• Strong experience with PostgreSQL, MySQL/MariaDB, Oracle in enterprise operations.
• Hands-on AWS database services experience (Aurora, RDS for SQL Server, PostgreSQL, MySQL).
• Experience with Azure database services (Azure SQL, Managed Instance, PostgreSQL, CosmosDB).
• Troubleshooting across database, OS and infrastructure layers; PowerShell and automation.
• Windows Server, Active Directory and Red Hat Linux familiarity.

Responsabilités

• Help define, implement and maintain highly available, scalable database systems.
• Involve in deployment and patching automation.
• Maintain backups, transaction log management and upgrades.
• Review schema changes for standards and indexing decisions.
• Assist with performance issues in applications and cross-team collaboration.
• Maintain the deployment pipeline and relationships with infra and development teams.

Connaissances

SQL Server administration

PostgreSQL

MySQL/MariaDB

Oracle

AWS database services

Azure database services

PowerShell

Windows Server

Active Directory

Red Hat Linux

Outils

AWS RDS/Aurora

Azure SQL Database/MI

CosmosDB

Description du poste

We are looking for a hands‑on Database Engineer capable of operating and evolving a hybrid database platform spanning SQL Server, PostgreSQL, AWS and Azure. The ideal candidate combines deep database expertise with automation, cloud engineering and platform-thinking capabilities.

More specifically, You will:

• Help define, implement and maintain highly available, performant & scalable database systems to effectively meet IT Business requirements.
• Be involved in deployment and patching automation.
• Maintain (backups, transaction log management, index optimisation etc) and upgrade the database systems etc.
• Review database schema changes to ensure compliance with standards and ensure optimal choice of indexing, column definitions etc.
• Help with problem solving in case of performance problems or functional issues in applications.
• Build a strong relationship both within the infrastructure team and with the development teams.
• Maintain the deployment pipeline.

I am looking for a senior Microsoft SQL DBA with strong affinity with MariaDB, AWS RDS & Azure data platforms.

Mandatory Requirements

• Expert knowledge of SQL Server administration, performance tuning, high availability and disaster recovery.
• Strong experience with PostgreSQL, MySQL/MariaDB, Oracle and enterprise database operations.
• Hands-on experience with AWS database services (Aurora, RDS for SQL Server, PostgreSQL and MySQL, DynamoDB).
• Experience with Azure database services (Azure SQL Database, Azure SQL Managed Instance, Azure Database for PostgreSQL, CosmosDB).
• Strong troubleshooting skills across database, operating system and infrastructure layers.
• Experience with PowerShell and infrastructure automation.
• Good knowledge of Windows Server, Active Directory and Red Head Linux.