Senior Drupal Developer (f/m/x)

Sii Ukraine LLC; Warszawa; Hybrid; PLN 260,000 - 380,000; Full time

Job summary

Sii Ukraine LLC in Warsaw is seeking a Senior Drupal Developer to own public websites and eCommerce platforms, delivering high-quality, secure solutions. You will lead cross-functional teams, implement best practices, and ensure content is easily editable for non-technical users.

This role requires strong Drupal expertise, multilingual/multisite experience, and willingness to commute to the Warsaw office 2–3 days per week.

Qualifications

• Minimum 5 years of CMS development experience with strong Drupal expertise.
• Experience leading development teams, mentoring, planning work, and timely delivery.
• Deep Drupal knowledge including custom modules, multisite, and multilingual setups.
• Good knowledge of asynchronous requests, AJAX, and partial page updates.
• Experience with data migration and content transformation processes.
• Fluent in English and Polish, written and spoken.
• Willingness to commute to the Warsaw office 2-3 days a week.
• Residing in Poland required.

Responsibilities

• Owning and driving Drupal CMS projects across teams.
• Leading development practices: TDD, CI, Scrum, refactoring, coding standards.
• Developing and maintaining modules, plugins, and system integrations.
• Standardizing multisite templates and reusable UI components.
• Collaborating with front-end designers to deliver polished UX.
• Ensuring content is easily editable by non-technical users.
• Optimizing applications for performance, scalability and reliability.
• Staying up-to-date with emerging technologies and trends.
• Collaborating with stakeholders and cross-functional teams.

Skills

Drupal expertise

Team leadership

Multisite setup

AJAX knowledge

Data migration

English and Polish fluency

Job description

This offer base language is English. Translate into Ukrainian.

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.

• 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
• 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

Job no. JOB-MZUCP

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.