Codexworker

PHP Backend Development

I build backend systems in PHP — APIs, workers and integrations. Usually Symfony, sometimes plain PHP when the framework overhead isn't worth it. Everything production-ready: tests, logging, error handling, and deployment that doesn't break at midnight.

I'm a backend developer with 10+ years of experience across PHP, Go, MySQL and Elasticsearch. Recent work includes Cenoskop (30M+ products daily), Niftycent (US price intelligence), and facha.sk (Go backend). I build, fix and optimize backend systems that handle real data and real traffic.

What I Can Help With

Build or extend backend features, APIs and services in PHP.

Typical Problems

new API endpoints needed background job processing third-party integrations framework upgrades legacy extension work

Relevant Experience

Built PHP backends for Cenoskop (Symfony, product data processing), AnalyticsForWebsite (traffic metrics collection) and Paidshield (encrypted chat). APIs, workers and integrations across different domains.

What Is Included

API design and implementation
background job processing
database integration
third-party API integration
tests and logging
deployment support

How It Works

We agree on scope, I build in regular increments with your feedback, then hand over tested code with documentation. Hourly rate €60, typically estimated up front for fixed scope.

From €60/h

Hourly for well-scoped work. I'll give a fixed estimate if the scope is clear.

Frequently Asked Questions

Symfony or plain PHP?

I use Symfony for larger applications, plain PHP for focused services. We decide based on what fits your problem.

Related Services

Other problems I help with.

PHP Developer for Existing Projects

Work on an existing PHP project — extensions, fixes and maintenance.

Details →

Modernize Your Legacy PHP Application

Gradually modernize a legacy PHP application.

Details →

Backend Performance Audit

Find and prioritize the real bottlenecks across your full backend stack.

Details →

Systems I've Built

Relevant production work.

Job & Services Marketplace

facha.sk

Find a job or offer your services.

Built the Go backend — API, matching logic and deployment.

Job Marketplace Services Go
Secure Communication

Paidshield

Chat application with end-to-end encryption.

Built the backend and encryption layer for a secure chat application.

End-to-End Encryption Real-time Communication Security
Security Scanner

remotedaemon.com

Remote security scanner with ping and certificate checking.

Built the scanning daemon and monitoring backend.

Security Ping Certificate
DNS Security

Synopsee

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.

DNS Security Privacy
Price Intelligence Engine

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.

Data Aggregation Scraping ElasticSearch
US Price Intelligence

Niftycent

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.

Data Aggregation Scraping Big Data
Traffic Analysis

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.

Performance Optimization Data Collection

Need Help With This?

Describe the problem in a few lines — I'll look at it and tell you what I think.

Discuss a PHP project