Database Engineer

The Database Engineer plays a key role in designing, implementing, administering, and maintaining robust enterprise database platforms that support T-Mobile's large-scale applications and analytics. This position is responsible for the full lifecycle administration of MS SQL Server environments, while also driving modernisation through cloud-native database services, automation, and observability.

You will collaborate with software engineers, cloud architects, and DevOps teams to deliver secure, scalable, and high-performance database solutions across on-premises and cloud environments. The role combines strong hands-on SQL Server administration expertise with strategic thinking and continuous improvement of mission-critical systems.

Responsibilities:

• Design, implement, and administer enterprise-grade database architectures for transactional and analytical workloads.
• Provide full lifecycle MS SQL Server administration, including installation, configuration, patching, version upgrades, and decommissioning.
• Support and automate database provisioning, schema management, configuration management, and upgrades through CI/CD pipelines across on-premises and cloud-native environments.
• Design, implement, and support High Availability and Disaster Recovery (HA/DR) solutions using Always On Availability Groups, Failover Cluster Instances, Log Shipping, and Replication.
• Implement and maintain backup, recovery, and data protection strategies, ensuring alignment with defined RPO/RTO and compliance standards.
• Support cloud database platforms such as Azure SQL Database, Azure SQL Managed Instances, and AWS RDS for SQL Server.
• Monitor and optimise database performance through query tuning, indexing strategies, execution plan analysis, and capacity planning.
• Implement observability, monitoring, and alerting for database health, performance, and availability using industry-standard tools.
• Troubleshoot complex database issues and perform root cause analysis to improve reliability and resilience.
• Participate in 24/7 on-call support rotation and contribute to operational excellence initiatives.

Requirements:

• Experience with Infrastructure as Code (IaC) practices and tools.
• Proficiency in scripting languages: Python/Bash/Shell.
• Exposure to observability platforms such as Prometheus, Grafana, Splunk, and OpenTelemetry.
• Skills Required: SQL, Database Administration, DBA, Database Admin, Shell, Python, Bash.