Senior SQL Server Architect
Location: Lisbon,Lisbon,Portugal
Overview
We are looking for a highly experienced Senior SQL Server Database Specialist to support a critical Database Performance & Stability Assessment / Continuous Expert Review project.
The role will focus on assessing, monitoring and improving the performance, stability and resilience of critical SQL Server environments. The consultant will conduct an in-depth technical assessment, monitor the platform over an extended period, identify root causes and risks, and define a structured remediation roadmap.
What will you do?
- Perform a comprehensive assessment of the SQL Server infrastructure, including:
- SQL clusters and high availability configurations.
- Storage, network and operating system.
- SQL Server instance configuration and overall health.
- Resource utilization, memory pressure and I/O bottlenecks.
- Wait Statistics, blocking and deadlocks.
- TempDB, fragmentation and statistics.
- Database growth, capacity, logical architecture and indexes.
- Critical queries, Stored Procedures and Jobs.
- Monitor the platform for a period of 4 to 8 weeks to identify performance trends and progressive degradation.
- Investigate potential issues such as:
- Memory leaks.
- Cache pollution.
- Parameter sniffing.
- Growth of temporary objects.
- Fragmentation and other cumulative performance problems.
- Shadow operational activities, including hourly monitoring, recovery procedures, cluster failovers and incident/alert analysis.
- Identify technical risks, constraints, root causes and supported technical hypotheses.
- Define a remediation plan covering:
- Quick Wins – actions to be implemented within 2 weeks.
- Medium Term – improvements to be implemented within approximately 2 months.
- Long Term – architectural evolution and strategic improvements.
- Deliver knowledge transfer sessions to APS, DBA and Application teams.
What are we looking for?
- Minimum of 10 years of experience working with critical database platforms.
- Proven experience with SQL Server Enterprise.
- Strong expertise in Always On Availability Groups.
- Strong knowledge of Windows Failover Clustering.
- Extensive experience in Performance Tuning and troubleshooting.
- Deep understanding of SQL Server Internals.
- Strong knowledge of Memory Management and memory-related performance issues.
- Extensive experience with TempDB optimization.
- Strong knowledge of Wait Statistics analysis.
- Experience with Query Store.
- Experience with Extended Events.
- Strong knowledge of Capacity Planning.
- Ability to perform complex root cause analysis and translate findings into clear technical recommendations.
- Experience working with highly available, business-critical SQL Server environments.
What can you expect from us?
- A permanent job contract for a long term project;
- Tech equipment + SIM Card + personal smartphone;
- Health and Life Insurance;
- Social events and team buildings;
- The commitment of letting you grow with us, and be rewarded accordingly;
- A dynamic and young team that will be always there to support you;
- Training in the latest technologies;
- Coffee, fruits, snacks and a warm welcoming when you pass by the office.
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