Fix Slow API: Performance Audit + Query Tuning (3 Days)

Starting at

$

200

About this service

Summary

I audit your API, identify the exact causes of slow performance, and apply targeted fixes that produce measurable improvements. My approach combines backend tuning + database optimization to deliver clear before/after metrics. You get fast performance gains without risky overhauls.

FAQs

  • Do you need full access to my app?

    Only read-only code access or a zipped folder is enough.

  • Will you actually fix performance issues or only give advice?

    I implement improvements directly — including query tuning, indexes, and code refactoring.

  • How big of an improvement should I expect?

    Most clients see a 40%–70% reduction in response times on the slowest endpoints.

  • What if my system is complex?

    I can handle layered APIs, microservices, and large SQL databases.

What's included

  • Performance Audit Report

    A detailed PDF showing all slow endpoints, bottlenecks, database issues, and system constraints.

  • Bottleneck Fixes & Code Improvements

    Updated backend code with optimized queries, indexes, and performance enhancements.

  • Before/After Metrics

    Clear comparison of latency and response times for improved endpoints.

  • Caching Recommendations

    A list of where caching will improve performance, including Redis setup if applicable.

  • Optimized Database Scripts

    SQL scripts for indexes, query changes, and improvements.

  • Summary Video

    A 2–3 minute walkthrough explaining what was fixed and why.

  • 7-Day Support

    Message support after delivery to ensure everything runs smoothly.


Duration

3 days

Skills and tools

Backend Engineer

DevOps Engineer

Fullstack Engineer

.NET

.NET

Node.js

Node.js

Postman

Postman

Industries

IT Infrastructure