About This Gig
Need help writing complex SQL queries or improving query performance?
I am a Data Engineer with 8+ years of experience working with multinational companies and a Big Four consulting firm. I help clients solve SQL problems, analyze data, and build efficient queries for their business requirements.
What I Offer
- Complex SQL query writing
- Joins, subqueries, CTEs, and window functions
- Query debugging and error resolution
- SQL performance optimization
- Data aggregation, filtering, and transformation
- Stored procedures and views
- Data cleaning and deduplication
- SQL interview questions and problem-solving guidance
- SQL query conversion and database migration assistance
Databases I Work With
- Oracle SQL
- Snowflake SQL
- Google BigQuery
- SQL Server
- MySQL
- PostgreSQL
Why Choose Me?
- 8+ years of professional Data Engineering experience
- MNC and Big Four consulting experience
- Practical experience with enterprise data and complex SQL transformations
- Focus on readable, maintainable, and efficient queries
- Clear communication and solutions tailored to your requirements
Have a SQL problem?
Send me your requirements, sample tables, expected output, and existing query if available. Please message me