David D.

SQL Expert

✅ 🔻TOP-RATED PLUS🔻 freelancer on UpWork ✅ Senior DBA and developer ✅ Senior database architect ✅ Business solutions and BI expert ✅ 20+ years of experience Senior Database Developer & DBA Consultant Certified and results-driven Database Administrator and Developer with over 20 years of experience across the full Microsoft SQL Server stack — from SQL Server 2000 through the latest 2025 release, including all Standard, Enterprise, and Azure SQL editions. Expertise includes on-premises, cloud (Azure SQL, Amazon RDS), and hybrid architectures, as well as MySQL, PostgreSQL, and MS Access environments. Specialized in performance tuning, query optimization, database design, migration, and automation using PowerShell and Azure tools. I have successfully supported and advised enterprise-level organizations in finance, healthcare, and IT, delivering enhanced reliability, security, and performance through strategic optimization and tailored development. My objective is to leverage deep database expertise to help businesses modernize, optimize, and scale their data platforms, providing efficient, secure, and business-driven solutions that deliver measurable results.