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November 4, 2026

Senior Full-Stack Developer (PHP, React)

Senior • Remote

Warsaw, Poland

Quick Facts

Senior Full-Stack Developer (PHP, React)

Description

Build and develop a client’s internal web system in the public sector that supports applications for funding. You will develop software, maintain technical documentation, propose improvements to development processes and tools, and support technical working-group meetings. The role includes unit testing and integration with external systems.

Responsibilities

  • Build and develop the software being delivered
  • Create and maintain technical documentation for the application
  • Propose improvements for the software development area (tools and process enhancements)
  • Consult during working-group meetings for projects
  • Perform unit tests
  • Integrate the system with external systems

Requirements

  • Min. 7 years of software development with PHP 7+
  • Min. 5 years with Symfony 4 or newer
  • Unit testing experience (preferably PHPUnit)
  • Unit testing for React (preferably Jest and testing-library such as react-testing-library)
  • Team management experience; ability to act as Team Leader
  • Experience building web applications dedicated to handling funding-application requests
  • Min. 5 years using Git and GitLab
  • Practical experience with API Platform
  • Min. 3 years with React.js
  • Practical experience with Yii2
  • Practical knowledge of web application security (OWASP) and Burp Suite
  • Practical knowledge of GitLab CI and code analysis tooling used in CI
  • Experience integrating with the Polish National Node (login.gov.pl)
  • Practical knowledge of containerization: Docker and Docker Compose
  • Practical knowledge of RabbitMQ
  • Practical knowledge of Redis
  • Practical knowledge of TypeScript

Benefits

  • Job stability with long-term projects and opportunities to develop across IT areas
  • Flexible engagement models: B2B, employment contract, or commission
  • Benefits: Medicover (expanded with dentistry), FitProfit, English classes
  • F45 gym training in the office
  • Internal referral program
  • Funding for IT certifications
  • Hybrid, remote, or onsite work depending on the project
  • Company events and integration trips
  • Charity support initiatives

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