PHP

PHP Developer in Poland

Development, support and refinement of PHP backends: custom scripts, business logic, APIs and integrations - in native PHP, not tied to a single framework. Legacy code rescue, security hardening and performance tuning with one accountable specialist.

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What I build with PHP

PHP still powers a huge share of the web - and a lot of it is native PHP, not built on a single framework. I work directly with plain PHP: custom scripts, backends, business logic and integrations, whether they run on their own or sit alongside Laravel, Symfony, WordPress or a legacy codebase.

Many PHP requests are rescue and refinement: taking over unmaintained projects, cleaning up spaghetti code, upgrading old PHP versions, closing security holes and fixing slow queries. I also build new backends and APIs from scratch with a clean, understandable structure.

I work as an independent developer - you communicate directly with me, with clear estimates and full responsibility for the code and result.

Custom backends & scripts

  • Business logic and automation scripts
  • Admin tools and internal systems
  • Data import/export and parsers
  • Cron jobs and background tasks

API development

  • REST APIs for web and mobile
  • Auth, tokens and rate limiting
  • Third-party API integrations
  • Webhooks and payment gateways

Legacy code rescue

  • Taking over abandoned projects
  • Refactoring spaghetti code
  • Documenting how the system works
  • Making old code safe to change

Version upgrades

  • Upgrade PHP 5.x / 7.x to PHP 8
  • Fixing deprecations and breakages
  • Updating dependencies via Composer
  • Server and environment migration

Performance tuning

  • Slow query optimization
  • Caching with Redis / OPcache
  • Reducing memory and load time
  • Profiling bottlenecks

Security & hardening

  • SQL injection and XSS fixes
  • Prepared statements and validation
  • Secure auth and password hashing
  • Audit of vulnerable dependencies
PHPPHP 8MySQLPostgreSQLComposerLaravelSymfonyRedisDockerGit

Why PHP and why me

PHP runs a large part of the web and hosting for it is cheap and everywhere. Native PHP is perfect for custom backends, integrations and rescuing existing projects. I write clear, secure PHP - and I'm just as happy fixing someone else's code as writing my own from scratch.

Runs everywhere

PHP works on almost any hosting, from cheap shared plans to dedicated servers - no exotic infrastructure required.

Framework-agnostic

I work with plain PHP as well as Laravel, Symfony or WordPress - so the solution fits your project, not the other way around.

Rescue specialist

I take over projects other developers abandoned - reading unfamiliar code, documenting it and making it safe to change.

Security-focused

Prepared statements, input validation and secure auth by default - I close the holes that hurt real PHP projects.

Work directly with a specialist

No middlemen: you communicate directly with me - from the first estimate to launch and support.

Long-term support

I maintain the backend after launch: updates, fixes and new features as your project grows.

Viktar Liukevich

About me

I'm Viktar Liukevich

Full-stack developer · 15+ years creating web

I'm a PHP developer based in Warsaw. I build, support and refine PHP backends: custom scripts, business logic, APIs and integrations - in native PHP, not locked to a single framework.
LIUKIT is my personal brand. You work directly with me: backend logic, API design, database work and deployment - from the spec to production and ongoing support.
A lot of my PHP work is rescue: taking over unmaintained projects, cleaning up spaghetti code, upgrading old PHP versions and closing security holes so the system is safe to build on again.
Based in Warsaw, I work with clients in Poland, Europe, the UAE and the USA - in English, Polish or Russian.
300+
Completed Projects
90+
Clients
10+
Partners

Advantages

  • 15+ years working for myself
  • Wide technology stack
  • Rapid development
  • Warranty and support
  • Global quality standards
  • Working with clients worldwide
  • Innovative technological solutions