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English
$
USD
I will complex sql queries, optimize database, and debug scripts
I automate your reporting and build AI tools that save you hours
I'm Shray, a data and AI professional with 7+ years in customer analytics, experimentation, and applied ML, including American Express and British Airways.
I turn messy data into automated, AI-powere...
About this Gig
Struggling with slow SQL queries, broken JOINs, or high database CPU usage?
Generic AI models often produce unoptimized logic that crashes production systems. As a Senior Data Specialist with 7+ years of enterprise experience (American Express, British Airways, EA), I deliver clean, production-ready SQL solutions and performance tuning.
What I Offer:
- Complex Queries: Window functions, CTEs, subqueries, and advanced JOINs.
- Performance Tuning: Execution plan analysis, indexing, and query restructuring.
- Database Support: PostgreSQL, MySQL, SQLite, MS SQL Server, and Snowflake.
- Automated Pipelines: Python/SQLAlchemy scripts for automated data extraction.
Why Choose Me?
- Enterprise Expertise: Proven track record handling massive datasets at Fortune 500 companies.
- Clean & Documented: Every solution includes clear comments explaining the logic.
- Strict Privacy: Enterprise-grade security and confidentiality.
Please message me with your database type and requirements before placing an order!
Platform:
Hadoop
•
MS SQL
•
MySQL
•
SQLite
Expertise:
SQL
•
Big data
•
Performance
•
Query optimization
My Portfolio
FAQ
Which database systems do you support?
I work with PostgreSQL, MySQL, SQLite, Microsoft SQL Server, and Snowflake.
What details do I need to provide to fix a slow query?
Please share your target database engine, the slow query script, table schemas (including current indexes), and expected output.
Is my database schema and data kept secure?
Yes. I follow strict enterprise data privacy protocols and never share or store client schemas or data.
