I will do sql database optimization and query performance tuning

Ihor

Ukraine

I speak Ukrainian, English

SQL Developer Data Integration Specialist

Hi! I’m Ihor, a Data Analyst and SQL Developer with strong expertise in designing, optimizing, and automating database workflows. What I specialize in: • Writing complex SQL queries & optimizing slow...
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About this Gig

Are slow SQL queries or database bottlenecks slowing down your system?

I am a professional Data & SQL Specialist offering end-to-end database optimization, complex SQL query development, and custom ETL pipelines. I deliver clean, production-ready solutions for your data workflow.

What I offer:

  • SQL Optimization: Query tuning, indexing, execution plan analysis, and join optimization.
  • ETL & Data Pipelines: Data extraction, transformation, and loading using Python (Pandas) and SQL.
  • Database Design: Relational schema design, normalization, foreign keys, and ERDs.
  • Data Migration: Import/export across PostgreSQL, MySQL, SQLite, CSV, and Excel.
  • Troubleshooting: Debugging syntax errors, locks, and concurrency issues.

Supported Technologies:

  • Databases: PostgreSQL, MySQL, SQLite, MS SQL Server
  • Python Stack: Pandas, SQLAlchemy, ETL scripts

Why choose me?

  • Clean, well-documented SQL code
  • Fast communication and clear timelines
  • Focus on performance and data integrity
  • Please message me before placing an order to discuss your project details!
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do sql database optimization and query performance tuning
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Database type:

Centralized database

•

Relational database

Expertise:

ERD

•

SQL

•

Performance

•

Query optimization

Platform:

MS SQL

•

MySQL

•

PostgreSQL

•

SQLite

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