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Senior Drupal Developer (f/m/x)

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Summary

Sii is hiring a Senior Drupal Developer in Warsaw (hybrid, office 2-3 days/week) to own public websites and eCommerce platforms: building custom Drupal modules, multisite and multilingual setups, and integrations, while leading/mentoring developers and applying TDD, CI, and Scrum best practices.

We are looking for a Senior Drupal Developer ready to take ownership of public websites and eCommerce platforms. You will be responsible for ensuring the delivery of high-quality, scalable, and secure technical solutions that follow industry standards and best practices.

Your tasks

  • Contributing to all phases of the software development lifecycle

  • Leading and ensuring adherence to best practices such as test-driven development, continuous integration, Scrum, refactoring, and coding standards

  • Developing and maintaining CMS modules, plugins, and system integrations

  • Standardizing multisite templates and reusable UI components

  • Collaborating closely with front-end designers and developers to ensure visually appealing and intuitive implementations

  • Ensuring content is easily editable by non-technical users

  • Optimizing applications for performance, scalability, and reliability

  • Collaborating with internal stakeholders and cross-functional teams

  • Staying up to date with emerging technologies, tools, and industry trends

Requirements

  • Minimum 5 years of CMS development experience with strong expertise in Drupal

  • Proven experience in leading development teams, including mentoring developers, planning work, and ensuring the timely delivery of high-quality solutions

  • Deep understanding of Drupal, including custom modules, multisite, and multilingual setups

  • Strong front-end skills in HTML, CSS, JavaScript, jQuery, and modern frameworks such as React and Next.js

  • Good knowledge of asynchronous request handling, partial page updates, and AJAX

  • Experience with data migration and content transformation processes

  • Fluent in English and Polish, both spoken and written

  • Willingness to commute to the office in Warsaw 2 - 3 days a week

  • Residing in Poland required

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