I will do mysql performance tuning, fix slow queries and speed up database

D
dong_mysql_dev
D
dong_mysql_dev
Dongji Yang
do mysql performance tuning, fix slow queries and speed up database
Full Screen
do mysql performance tuning, fix slow queries and speed up database

About this gig

I will fix your slow MySQL queries and optimize database performance with professional, practical tuning solutions.


What you will get:

Slow SQL query analysis and rewritten optimization

Index design, adjustment and optimization suggestions

Key MySQL configuration parameter tuning

Complete performance audit report with actionable steps

Follow-up guidance to help you implement all solutions


With 5+ years of backend development and production MySQL tuning experience, I have optimized hundreds of database systems, improving query speed by up to 50% or even more. I focus on stable, business-friendly solutions that fit your real scenario.


Before starting, please prepare:

- Slow query log file or sample slow SQL statements

- Your MySQL version and basic server environment info

- The performance issues and goals you want to solve


If you have any questions, feel free to message me anytime.

  • Programming language

    • Java
    • Python

  • Expertise

    • Debugging
    • Performance
    • Databases

  • Backend framework

    • Spring Boot

Get to know Dongji Yang

Dongji Yang

Senior Java Backend Developer Spring Boot MySQL Optimization Expert

  • FromChina
  • Member sinceSep 2026
  • Avg. response time1 hour

  • Languages

    Chinese, English
What I deliver: Scalable backend services & RESTful APIs built with Spring Boot / Spring Cloud Slow MySQL query fixes, index optimization, and table sharding for large datasets Legacy Java system refactoring to boost performance and maintainability Distributed issue resolution, third-party integration, and caching solutions I’ve optimized hundreds of production SQL statements, reduced query response time by up to 50%, and delivered stable solutions for enterprise and commercial clients. I focus on clean code, clear communication, and on-time delivery for every project.

Related tags