Pavlo P.

I help businesses build reliable data platforms and AI-powered applications. With 10+ years of experience in SQL Server, PostgreSQL, C#, and database optimization, I develop solutions that combine high-performance databases with modern AI technologies. I can help you with: SQL query optimization and performance tuning Database design and data modeling ETL pipelines and data migration ASP.NET Core backend development AI integration using OpenAI-compatible APIs AI assistants that work with SQL databases and business documents Retrieval-Augmented Generation (RAG) Vector search with PostgreSQL (pgvector) REST APIs and backend services Stored procedures, functions, and triggers ETL and data migration SQL Server ↔ PostgreSQL ↔ Oracle migrations Power BI data preparation Building DWH (Medallion Architecture) Database troubleshooting and production support I focus on practical business solutions—whether it's optimizing a slow database, building a data platform, or integrating AI into an existing application. If you need someone who understands both databases and modern AI workflows, I'd be happy to discuss your project.