Senior Shopify & Craft CMS Engineer

Avenga; Polska; On-site; PLN 120,000 - 180,000; Full time

Job summary

Avenga is seeking an experienced Shopify / Craft CMS Developer to join an international team working on modern e-commerce and digital experience platforms. You will develop, customize, and maintain Shopify themes and Craft CMS components, translating designs into pixel-perfect websites while optimizing performance and accessibility.

The role focuses on building responsive, accessible experiences, integrating with third-party systems, and collaborating with designers and marketers to deliver

Qualifications

• Commercial experience with Shopify or Shopify Plus.
• Strong knowledge of Liquid, HTML, CSS, JavaScript, PHP.
• Experience with Craft CMS 4/5.
• Good understanding of Twig, REST APIs, Git, GitHub, and Jira.
• Experience with performance optimization, technical SEO, and accessibility WCAG.
• Ability to translate Figma/XD designs into pixel-perfect, responsive websites.
• Strong attention to detail and a passion for clean, maintainable code.

Responsibilities

• Develop, customize, and maintain Shopify themes, templates, sections, and integrations.
• Build responsive, accessible websites based on Figma designs.
• Optimize website performance, Core Web Vitals, SEO, and accessibility.
• Integrate Shopify and Craft CMS with third-party systems via APIs.
• Create and maintain custom modules, plugins, and reusable components.
• Troubleshoot production issues and ensure a smooth user experience across devices and browsers.
• Manage deployments, environments, updates, and security best practices.
• Collaborate closely with designers, marketers, and other stakeholders.

Skills

Shopify/Shopify Plus

Liquid

HTML

CSS

JavaScript

PHP

Craft CMS 4/5

Twig

REST APIs

Git

GitHub

Jira

Performance optimization

Technical SEO

WCAG accessibility

Pixel-perfect design

Tools

Shopify

Craft CMS

Twig

REST APIs

Git

GitHub

Jira

Job description

Avenga is seeking an experienced Shopify / Craft CMS Developer to join an international team working on modern e-commerce and digital experience platforms. You will develop, customize, and maintain Shopify themes and Craft CMS components, translating designs into pixel-perfect websites while optimizing performance and accessibility.

The role focuses on building responsive, accessible experiences, integrating with third-party systems, and collaborating with designers and marketers to deliver