Backend Development Expert

Forge of Modern
Backend Solutions

I specialize in legacy application modernization, Azure cloud migrations, and building scalable backend systems. 13+ years of experience in PHP and enterprise architecture.

IT Services

I offer comprehensive technical support for companies in need of a backend development expert

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Legacy Modernization

Gradual PHP application modernization without complete rewrites. I implement Symfony, upgrade PHP 7.x→8.3, introduce modern patterns, and improve code quality.

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Azure Migration

I conduct migrations from on-premise to Microsoft Azure. Integrations with Azure Service Bus, App Service, Key Vault. Infrastructure provisioning with Terraform.

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Technical Consulting

System architecture reviews, code reviews, technology selection, solution design. Support for teams making difficult technical decisions.

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Backend Solutions

Building backend systems in PHP/Symfony. REST APIs, message queues, event-driven architecture, multi-tenancy. From MVP to scalable enterprise platforms.

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Team Support

Tech lead on-demand. I support development teams through mentoring, code reviews, and technical consulting. Assistance with fixing critical bugs.

Automation & Developer Experience

Improving team productivity by implementing automation tools: Makefiles, CI/CD pipelines, Git hooks, deployment scripts. Developer workflow optimization for increased productivity.

About Me

Andrzej Kowalczuk

Backend Developer with 13 years of experience, specializing in PHP, Symfony, and Microsoft Azure. As a Tech Lead, I guide teams through the full project lifecycle - from requirements analysis to production deployment.

I have conducted dozens of legacy code migrations to modern standards, implemented message queue systems handling high event volumes, and built multi-tenant SaaS platforms serving hundreds of clients.

Technology stack: PHP 8.3, Symfony 7.2, MySQL 8.0, Redis, Azure (Service Bus, App Service, Key Vault), Docker, Terraform, PHPStan, Rector, GitHub Actions

13+
Years of Experience
200+
Platform Clients
600+
MySQL Databases
500k+
Lines of Code Migrated

Contact

Looking for a backend expert? Send a message or call - let's discuss your project

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