
Solution Architect
caixamagica · Lisbon, Lisbon, Portugal
About The Role
Overview
We are looking for an experienced SQL Server Performance & Stability Consultant to assess and improve a critical database platform, combining deep technical analysis with a long-term evolution strategy.
The role will focus on identifying the structural causes behind recurring performance degradation, defining a clear improvement roadmap, and ensuring sustainable platform stability through infrastructure, SQL Server, database and application-level analysis.
What will you do?
Relate current performance and stability issues to the platform’s long-term evolution strategy.
Identify structural limitations of the existing platform and define an improvement roadmap.
Perform a comprehensive assessment covering
- SQL clusters and high availability configurations.
- Storage, network and operating system.
- SQL Server health and instance configuration.
- Resource utilization, Wait Statistics, blocking and deadlocks.
- Memory pressure and I/O bottlenecks.
- Fragmentation and statistics.
- Database growth, logical architecture, indexes and capacity.
- Critical queries, Stored Procedures and Jobs.
- Monitor the platform for 4 to 8 weeks to understand its behaviour over time and identify progressive degradation.
Investigate issues such as
- Memory leaks.
- Cache pollution.
- Parameter sniffing.
- Temporary object growth.
- Fragmentation and other cumulative performance issues.
Shadow operational activities, including
- Hourly platform monitoring.
- Recovery procedures.
- Periodic cluster failovers.
- Incident and alert analysis.
- Identify risks, constraints, root causes and technically supported hypotheses.
Define a remediation plan divided into
- Quick Wins – up to 2 weeks.
- Medium Term – approximately 2 months.
- Long Term – architectural evolution.
- Define a roadmap to ensure sustainable platform stability over the next 18 months.
- Recommend tools, configurations and monitoring improvements to anticipate potential issues more effectively.
- Deliver knowledge transfer sessions to APS, DBA and Application teams.
- What are we looking for?
- Strong experience assessing and troubleshooting critical SQL Server environments.
- Deep expertise in SQL Server performance and stability analysis.
- Strong knowledge of SQL Server clusters and high availability architectures.
- Experience analysing storage, network and operating system dependencies affecting database performance.
Strong knowledge of
- Wait Statistics.
- Blocking and deadlocks.
- Memory management and memory pressure.
- I/O bottlenecks.
- Database fragmentation and statistics.
- Database growth and capacity planning.
- Index optimization.
- Critical queries and Stored Procedures.
- Experience diagnosing complex and progressive performance degradation across infrastructure, database and application layers.
- Ability to perform root cause analysis and distinguish between infrastructure, SQL Server and application-related issues.
- Experience defining technical remediation plans and long-term architectural roadmaps.
- Strong analytical skills and the ability to translate technical findings into clear, actionable recommendations.
- Experience working closely with APS, DBA and Application teams and providing technical knowledge transfer.
- 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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