Backend Performance Audit
You have a backend that is slow, overloaded, or blowing up under traffic. Rather than guessing, I audit the actual stack — application code, database queries, queues and infrastructure — and report what to fix first.
Covers PHP, Go, MySQL, Redis, Elasticsearch and Linux. The result is a prioritized list of concrete changes with expected impact.
What I Can Help With
Find and prioritize the real bottlenecks across your full backend stack.
Typical Problems
Relevant Experience
Audited backends across PHP, Go and MySQL handling large-scale product data and traffic; produced prioritized fixes for production systems.
What Is Included
How It Works
You grant read-only access to metrics/profiling/slow logs for a sampling period. I produce a written report ranking issues by impact and effort. Typically 1-2 days depending on system size.
Starting from €499
Independent audit and a written report with prioritized recommendations. Implementation is optional and quoted separately.
Frequently Asked Questions
Do you need production access?
I work from read-only access: metrics dashboards, profiling output, slow logs and schema. I do not change anything until we agree on a plan.
What languages and stacks do you cover?
PHP (plain/Symfony/Laravel), Go, MySQL/MariaDB, Redis, Elasticsearch, Docker and Linux. I focus on where time is actually spent in your system.
Related Services
Slow PHP Application? I'll Find the Bottleneck
Diagnose why a PHP application is slow, no rewrite required.
PHP Performance Optimization
Profile and optimize PHP applications that are slow, memory-heavy or consuming too much CPU.
MySQL Performance Optimization
Optimize MySQL queries, indexes and schema for a production workload.
Elasticsearch Optimization
Optimize Elasticsearch queries, mappings, indices and cluster configuration.
Systems I've Built
AnalyticsForWebsite
Custom solution for collecting and evaluating traffic metrics with emphasis on processing speed and minimizing backend load.
Designed and built the backend for fast traffic metric collection and evaluation.
Cenoskop / Levnobot
Crawler monitoring millions of products. Processing 30M products daily and comparing them.
Built and maintain the full crawling pipeline — from scraping through Elasticsearch indexing to price comparison.
Not sure what's wrong?
Write what's happening and paste anything relevant — errors, logs, metrics. I'll have a look and tell you what I think.