I will fix, optimize or write sql queries for your database

I'm a data engineer with hands-on experience building a complete Oracle data warehouse from scratch, including dimensional modeling with Star Schema and Kimball methodology, plus historical tracking with SCD Type 2. I currently manage the entire data stack for a mid-sized company on my own, from architecture to delivery.

I help clients fix, optimize and write SQL queries that actually perform, whether your query is too slow, returning wrong results, or you need one built from a business requirement.

What I offer: query optimization through execution plan analysis, indexing and rewriting for performance, fixing broken or incorrect SQL, writing new queries from your requirements, database schema review and design (ERD), and working knowledge of relational, centralized database systems, mainly Oracle and PL/SQL.

I don't just patch the symptom. I look at the actual query structure and table design to fix the root cause, not just make it run. Clear communication, realistic deadlines, and I only commit to what I can actually deliver well.

Send me your query or describe your problem and I'll tell you within hours whether it's something I can help with and what it'll take.