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.
Find and prioritize the real bottlenecks across your full backend stack.
Audited backends across PHP, Go and MySQL handling large-scale product data and traffic; produced prioritized fixes for production systems.
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.
Independent audit and a written report with prioritized recommendations. Implementation is optional and quoted separately.
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.
PHP (plain/Symfony/Laravel), Go, MySQL/MariaDB, Redis, Elasticsearch, Docker and Linux. I focus on where time is actually spent in your system.
Other problems I help with.
Diagnose why a PHP application is slow, no rewrite required.
Details →Profile and optimize PHP applications that are slow, memory-heavy or consuming too much CPU.
Details →Optimize MySQL queries, indexes and schema for a production workload.
Details →Optimize Elasticsearch queries, mappings, indices and cluster configuration.
Details →Relevant production work.
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.
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.
Describe the problem in a few lines — I'll look at it and tell you what I think.