Senior Database Engineer

ATS4IT supports its clients in their digital transformation initiatives and AI driven innovations, in different sectors and it's a part MoOngy Group, with over 9,500 employees across Europe, we bring extensive expertise across a wide range of IT domains. With teams in Belgium, Denmark, and a nearshore center in Portugal, we deliver proximity, agility, and real impact across Europe. Senior Database Engineer

Location:
Brussels Languages: Fluent French and English Eligibility: A valid EU work permit is mandatory

About The Role
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 environments. The ideal candidate combines deep database expertise with cloud technologies, automation, and platform engineering capabilities. Profile
• Bachelor's or Master's degree in Computer Science, Information Technology, Engineering, or a related field.
• Minimum 5 years of experience in Database Administration, Database Engineering, or Infrastructure Operations.
• Strong analytical and troubleshooting skills.
• Excellent communication skills with the ability to explain complex technical issues to both technical and non-technical stakeholders.
• Proactive mindset with a strong focus on reliability, performance, and continuous improvement.
• Ability to work independently and collaboratively in cross-functional environments. Requirements Mandatory
• Expert knowledge of SQL Server administration, performance tuning, high availability, and disaster recovery.
• Strong experience with PostgreSQL, MySQL/MariaDB, and Oracle database administration.
• Hands-on experience with AWS database services (Aurora, RDS for SQL Server, PostgreSQL, MySQL, DynamoDB).
• Experience with Azure database services (Azure SQL Database, Azure SQL Managed Instance, Azure Database for PostgreSQL, CosmosDB).
• Strong troubleshooting capabilities across database, operating system, and infrastructure layers.
• Experience with PowerShell and infrastructure automation.
• Good knowledge of Windows Server, Active Directory, and Red Hat Linux.
• Experience maintaining backup strategies, performance optimization, patching, and database upgrades. Strongly Preferred
• Experience with Terraform, Ansible, or other Infrastructure-as-Code tools.
• Experience with observability and monitoring platforms such as RedGate, Dynatrace, CloudWatch, and Azure Monitor.
• Experience modernizing legacy database platforms and migrating workloads to cloud environments.
• Experience with Git, Jira, and CI/CD deployment processes.
• Knowledge of cloud security, encryption, backup, and disaster recovery solutions.
• Experience with capacity planning and performance monitoring in cloud environments.
• Knowledge of Power BI, SSAS, or other reporting platforms. Nice to Have
• VMware vSphere and ESXi administration knowledge.
• Experience with Commvault or enterprise backup solutions.
• Understanding of networking and load-balancing concepts (F5).
• Azure Entra ID and Azure platform services.
• Basic knowledge of Go or Python.

Key Responsibilities
• Define, implement, and maintain highly available, scalable, and performant database platforms.
• Manage database maintenance activities including backups, disaster recovery, patching, upgrades, index optimization, and transaction log management.
• Support deployment and automation initiatives across database environments.
• Review and validate database schema changes to ensure compliance with standards and best practices.
• Troubleshoot performance bottlenecks and support application teams in resolving database-related issues.
• Maintain and improve deployment pipelines and automation processes.
• Collaborate closely with infrastructure, cloud, and development teams.
• Promote database governance, operational excellence, and best practices.
• Contribute to the evolution of database platforms across AWS and Azure environments.
• Ensure platform security, availability, and compliance with organizational standards. Technical Environment
• SQL Server HA Clusters on Windows Core VMs
• PostgreSQL HA Clusters on Red Hat Linux
• MariaDB/MySQL HA Clusters on Red Hat Linux
• Oracle Standalone Instances on Red Hat Linux
• AWS (RDS SQL Server, PostgreSQL, MySQL, Aurora, DynamoDB)
• Azure SQL Database, Azure SQL Managed Instance, Azure Database for PostgreSQL, CosmosDB
• Microsoft Fabric and Power BI Services

What We Offer
• Permanent Contract (CDI) – Long-term stability.
• Attractive salary based on your experience and skills.
• Additional

benefits:
Meal vouchers and eco-vouchers (electronic), DKV hospitalization insurance, company laptop, holiday allowance, and year-end bonus.
• Free training (technical, behavioral, language) and certifications.
• Continuous and personalized career progression support.
• Opportunities to work on projects with cutting-edge technologies. At Moongy Group, we stand for equality and diversity. We create a safe and inclusive environment where opportunities are equal for everyone We do not discriminate based on age, ethnicity, gender, disability, sexual orientation, or any factor other than merit. If you have the skills for the role, we encourage you to apply