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September 29, 2026

Backend Developer (PHP)

Senior • On-site

124,800 - 145,600 PLN/yr

Gliwice, SL, Poland

Quick Facts

  • Role: Backend Developer (PHP)

  • Stack: PHP, Drupal 10, Symfony

  • Work model: Hybrid (2 days/week in Warsaw office)

Description

You will join a team responsible for the development and long-term maintenance of key CMS-based web applications built on Drupal 10 and the Symfony framework. The role focuses on building and maintaining the server-side PHP layer, implementing advanced features, creating custom Drupal modules, integrating external APIs and systems, and ensuring high code quality, performance, and security.

Responsibilities

  • Develop, extend, and maintain the server-side layer of PHP web applications

  • Design and implement advanced functionality using Drupal 10 and Symfony

  • Write custom Drupal modules and modify existing solutions

  • Integrate applications with external APIs and external systems/services

  • Work with relational databases (query optimization, data structure design)

  • Diagnose, debug, and fix issues in running applications

  • Maintain high standards for code quality, system performance, and security

  • Collaborate actively with development and project teams

Requirements

  • Minimum 3 years of commercial backend development experience (PHP)

  • Very good, hands-on knowledge of Drupal 10, including creating and modifying dedicated modules

  • Very good knowledge of Symfony

  • Good knowledge of SQL and relational databases

  • Knowledge of REST API architecture and integration principles

  • Very good knowledge of Git and the Composer package manager

  • Solid knowledge of OOP and software engineering best practices

  • Analytical thinking and ability to quickly diagnose and resolve technical problems

  • Willingness to work hybrid from the Warsaw office (2 days/week)

Benefits

  • B2B cooperation

  • Full-time employment (160h/month)

  • Rate: 60–70 PLN/h net + VAT

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