October 3, 2026
Senior Full Stack Software Engineer (Drupal)
Senior • Remote
Warsaw, Poland
Quick Facts
Role: Senior Full Stack Software Engineer (Drupal)
Focus: Drupal-based web platforms + full-stack development and technical leadership
Description
You will design, develop, and maintain modern web applications using Drupal, including custom modules, CMS configuration, migrations, and new features. You will implement backend business logic in PHP, build frontend functionality with HTML5/CSS/JavaScript, and create/consume APIs with integrations such as Single Sign-On (SSO). The role also includes performance, security, and accessibility improvements and technical leadership through code reviews and architecture decisions.
Responsibilities
Full-stack development and maintenance of web applications
Develop Drupal solutions (custom modules, CMS configuration, migrations, new functionality)
Implement backend business logic and integrate with databases and UI interfaces
Develop frontend components using HTML5, CSS, and JavaScript
Design and implement APIs and integrate with external systems (including SSO)
Build dashboards, data visualizations, and interactive map components
Ensure performance, security, and availability aligned with public-sector standards
Collaborate with infrastructure and container-platform teams for deployments and environment maintenance
Conduct code reviews, provide technical support, and make architectural decisions
Requirements
10+ years of commercial IT experience (or 12+ with a bachelor’s degree; or 17+ with a secondary degree)
5+ years backend application development with PHP, Python, Java, Node.js, or similar
2+ years commercial Drupal experience, including custom module development
5+ years frontend development with HTML5, CSS, JavaScript
Experience with responsive web apps across multiple browsers
3+ years API design and implementation (REST/SOAP)
Experience integrating authentication systems and Single Sign-On (SSO)
Ability to independently design, secure, and document API interfaces
Experience with databases and integrating the data layer with web apps
English proficiency (min. B2)
Benefits
Opportunity to work on an international project for a large public-sector organization
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