Shopify full stack developer

Job Title: Shopify Full-Stack Developer

Location: Remote

Employment Type: Full-Time, Independent Contractor (exclusive to our company, 40 hours/week)

Compensation: USD 2,000 - 3,000 per month

About Us

KU Europe GmbH is a family-owned D2C company behind KU2 Cosmetics, dedicated to helping people “grow older, look younger.” With our own fulfillment center, we serve millions across the DACH region, ensuring top-quality products, fast delivery, and an exceptional customer experience. Embracing a remote-first culture and collaborating with global talent, we create innovative beauty and anti-aging products that deliver real, lasting results.

Job Summary

As a Full-Stack Developer, you will be responsible for developing, maintaining, and enhancing our Shopify stores. You’ll work on both front-end and back-end development, integrating apps, improving site performance, and implementing custom features to deliver a seamless user experience.

Tasks

• Develop and customize Shopify stores, including themes and templates, using Liquid, HTML, CSS, JavaScript, and JSON.
• Build, maintain, and integrate custom Shopify apps, leveraging Shopify APIs and managing third-party integrations.
• Optimize front-end performance, ensuring fast load times, mobile responsiveness, and cross-browser compatibility.
• Collaborate with designers, marketers, and product teams to implement new features, improvements, and best practices.
• Troubleshoot and resolve technical issues across the Shopify ecosystem, maintaining high-quality standards.
• Stay up-to-date with Shopify trends, best practices, apps, and new features to continually enhance the store experience.
• Support headless Shopify setups or other advanced configurations when needed.
• Provide guidance on e-commerce analytics, CRO strategies, and performance tracking to improve store efficiency.

Requirements

• At least 4+ years of hands-on experience with Shopify development, including Liquid, HTML, CSS, JavaScript, and JSON.
• Strong understanding of Shopify APIs, custom apps, and integrations, including back-end logic and server-side workflows within Shopify.
• Strong front-end Shopify development skills, including theme customization, responsive design, and optimizing performance for user experience.
• Experience with version control systems like Git.
• Basic knowledge of back-end development using PHP and the Laravel framework.
• Familiarity with e-commerce analytics and CRO tools.
• Familiarity with headless Shopify setups.
• Knowledge of SEO best practices, web performance optimization, and responsive design.
• Strong problem-solving skills and attention to detail.
• Excellent communication skills and ability to work in a collaborative team environment.

Benefits

Why Join Us

• 100% Remote – work from anywhere.
• Opportunity to work in a dynamic, fast-growing international company.
• Long-term position with room for growth.

Note: This position is an unlimited independent contractor engagement, requiring a full-time commitment of 40 hours per week. Please note that this role is exclusive, meaning the independent contractor is not permitted to work with any other company during the engagement.

4+ years of Shopify development with Liquid, HTML, CSS, JavaScript, JSON, APIs, custom apps, integrations, and Git; PHP/Laravel, analytics, CRO, SEO, and headless Shopify knowledge required.

Key Responsibilities

• developing stores
• integrating apps
• optimizing performance

Skills & Tools

Shopify, Liquid, HTML, CSS, JavaScript, JSON, Shopify APIs, Git, PHP, Laravel

Job Details

• Category: Software Development
• Seniority: Mid Level
• Commitment: Full Time, Contract
• Workplace: Remote — Belgrade, City of Belgrade, Serbia
• Salary: USD 24,000 – 36,000 / year
• Languages: English

About KU Europe GmbH

A direct-to-consumer company creating beauty and anti-aging products for customers across the DACH region. — Industry: Retail and Wholesale