Symfony

Symfony Developer in Poland

Development, support and refinement of web applications on Symfony: enterprise systems, REST APIs (API Platform), admin panels and backends. Robust architecture, tests and long-term maintainability - with one accountable specialist.

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What I build with Symfony

Symfony is the enterprise-grade PHP framework I use for complex, long-lived applications - when you need strict architecture, reusable components and a codebase that scales with the business. I build and refine Symfony apps end to end: custom systems, APIs, admin panels and backends.

Many Symfony requests are refinement and rescue: adding features, upgrading old Symfony versions, refactoring legacy bundles, fixing performance and closing security holes. I also build new applications from scratch with clean architecture, Doctrine and tests.

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

Enterprise web applications

  • Complex business systems
  • ERP/CRM modules and portals
  • High-load, mission-critical apps
  • Domain-driven design

REST & API Platform

  • REST and GraphQL APIs
  • API Platform-based backends
  • OAuth2 / JWT authentication
  • Messenger, queues and events

Refinement and improvements

  • New features on existing apps
  • Refactoring legacy bundles
  • Doctrine and query optimization
  • Adding tests and CI/CD

Version upgrades

  • Upgrade to the latest Symfony LTS
  • PHP version upgrades
  • Bundle updates and replacements
  • Rescue of unmaintained projects

Modern stack

  • Doctrine ORM and migrations
  • Twig, Stimulus and Turbo
  • EasyAdmin panels
  • Payments: Stripe, PayU, Przelewy24

Support and security

  • Framework and dependency updates
  • Vulnerability fixes and hardening
  • Monitoring, logging and backups
  • Ongoing maintenance and SLA
SymfonyPHPDoctrineAPI PlatformTwigMySQLPostgreSQLRedisDockerGit

Why Symfony and why me

Symfony is the framework of choice for large, long-lived PHP projects - strict structure, reusable components and a strong LTS policy. I build maintainable, well-tested applications that stand the test of time.

Enterprise-grade

Battle-tested in banking, government and large systems - built for reliability and scale.

Strict architecture

Clear structure, DI, and reusable components make large codebases predictable and maintainable.

API-first with API Platform

Powerful REST and GraphQL APIs for web, mobile and third-party integrations.

Security and stability

A mature security component, a strong LTS policy and timely patches for production peace of mind.

Work directly with a specialist

No middlemen: you communicate directly with me - from architecture to launch and support.

Long-term support

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

Viktar Liukevich

About me

I'm Viktar Liukevich

Full-stack developer · 15+ years creating web

I'm a Symfony developer based in Warsaw. I build, support and refine web applications on Symfony: enterprise systems, REST/GraphQL APIs, admin panels and backends - with robust architecture and tests.
LIUKIT is my personal brand. You work directly with me: backend architecture, API design, Doctrine data modeling and deployment - from the spec to production and ongoing development.
A lot of my Symfony work is rescue and refactoring: upgrading legacy versions, refactoring old bundles, fixing performance and adding tests to unmaintained projects.
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