Is your application slow or your database struggling under load? I optimize SQL Server and MySQL databases to dramatically improve performance. I refactor complex Entity Framework LINQ queries into efficient stored procedures, add and tune indexes, redesign slow queries, and apply caching strategies — work that has improved API response times by up to 40% and overall query/API performance by up to 35% on real projects. I analyze execution plans, reduce database round-trips, and identify bottlenecks across the full stack. You receive a clear breakdown of what was slow, what I changed, and the measurable improvement. Ideal for growing apps that have outgrown their original database design. Share your situation and I'll diagnose where the gains are.