I build, fix and optimize backend systems.
10+ years with Go, PHP, MySQL and Elasticsearch — from the first commit to deployment and monitoring.
What I do
I work with small teams and independent projects, end to end: web APIs, data pipelines, crawlers and internal tools. A big part of the work is making slow things fast — performance audits, MySQL and Elasticsearch tuning, PHP memory and CPU issues. Currently available for new projects.
Selected work
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.
Price intelligence engine for the US market. Processing large-scale product data.
Built the data pipeline and crawling infrastructure for large-scale US product monitoring.
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.
Chat application with end-to-end encryption.
Built the backend and encryption layer for a secure chat application.
A Cleaner, Safer Internet. Take control of your DNS. Block ads, trackers, and malicious sites with customizable profiles.
Built the DNS resolution backend and profile management system.
Rust-based TUI disk usage analyzer.
Built a terminal disk usage tool in Rust.
Find a job or offer your services.
Built the Go backend — API, matching logic and deployment.
Remote security scanner with ping and certificate checking.
Built the scanning daemon and monitoring backend.
Get in touch
Send me an email — I reply within a day.