Senthil P N.

Got a slow query or a messy database? Click "Invite" and tell me what's holding you back. - SQL Query, Stored Procedure, View Optimization - Indexing, Statistics & Execution Plan Tuning - Database Performance Optimization - PostgreSQL. MySQL, SQL Server, SQLite, MS Access Query Tuning - Data Deduplication & Cleanup - Excel VBA Automation & Optimization I’m a database engineer with 15+ years of experience across SQL Server, MySQL, PostgreSQL, SQLite, MS Access, and Snowflake. I’ve optimized slow queries and transformed fragile, outdated databases into fast, secure, scalable systems. ⚡ Query Optimization & T-SQL Clean, maintainable code that performs well at scale: • Query tuning and performance troubleshooting (30+ queries sped up) • Stored procedures, functions, views, and complex queries Slow queries, unreliable reports, or an aging database nobody wants to touch? That's what I fix. 🔄 ETL & Data Migration Moving data accurately between systems: • ETL pipelines and SSIS packages • Database and cross-platform migration • XML/JSON import into SQL Server 🧹 Data Quality Making your data trustworthy: • Data cleaning and de-duplication 🛠️ Database Administration & Design Keeping your databases stable and protected: • Architecture and schema design • Maintenance plans, backup, and recovery 💾 Platforms MS SQL Server, SQL Azure, PostgreSQL, MySQL, SQLite, Snowflake, MongoDB .NET Development I’ve delivered .NET solutions (C# and VB.NET) for 10+ clients, including database-driven business applications and automation utilities. As a database engineer first, I build applications around clean, fast data access with SQL Server and other databases. I test before delivery and build for reliability and ease of maintenance. Excel VBA Development I’m also an Excel VBA developer who has built custom automation tools and dashboards for 25+ clients. From macro-driven workbooks to data-connected dashboards, I build tools that are simple to use, dependable, and designed to save you time on repetitive work. 💻 Application Development • Excel VBA macros, tools, and dashboards • MS Access applications • .NET, C#, VB.NET 🏛️ Legacy Systems Support I maintain and support legacy web applications built on Classic ASP, including IIS configuration, deployment, and troubleshooting. I help businesses keep older systems running reliably and modernize them where it makes sense.