Senior Full-Stack Shopify Engineer (m/f/x) - Freelancer / Full-time

Description

#You is a platform for building and scaling direct-to-consumer brands. Behind the project is a strong team with years of experience in building lifestyle brands. Under the umbrella of #You , we are building the next generation of social media brands with the help of influencer marketing and strong brand-based communities. Our current brand portfolio includes the home fragrance brand AVA & MAY and the personal fragrance brand FAYNT .

At AVA & MAY , we have set ourselves the goal of bringing the world into your home with unique fragrances and creating special moments. We are a fast-growing home & living brand that has already successfully established itself internationally. We are backed by a loyal community, hundreds of thousands of customers and an international, experienced team that is passionate about driving the success of AVA & MAY .

We’re looking for a Senior Full-Stack Developer (m/f/x) with expertise in JavaScript, Shopify, and backend development. In this role, you’ll lead end-to-end development of our Shopify ecosystem, from frontend themes to custom apps and integrations, ensuring scalability, performance, and seamless user experiences.
Your tasks

• Design, build, and deploy full-stack Shopify solutions (frontend themes, custom apps, APIs, and backend services).

• Architect scalable solutions for Shopify stores, including integrations with third-party systems (Klaviyo CRM system, payment gateways).

• Optimize performance across the stack (frontend, Liquid, APIs, databases) and troubleshoot bottlenecks.

• Collaborate with UX/UI designers to ensure feasibility and implement responsive, high-performance interfaces.

• Own the entire development lifecycle — from brainstorming to production deployment and monitoring.

• Document the custom solutions on Confluence and advocate for best practices in code quality, testing, and security.

Your profile

• 5+ years of full-stack development (JavaScript/TypeScript, Node.js, REST/GraphQL APIs).

• 3+ years of Shopify experience, including:

  • Custom theme development (Liquid, React)

  • Working with Checkout Extensibility

  • Building Shopify Apps (using Polaris, Shopify API, Admin extensions)

  • Backend integrations (Ruby On Rails & RUST)

• Strong database skills (PostgreSQL, MongoDB, or Shopify Data Layer).

• Experience with modern stacks: React/Next.js, GraphQL, Docker.

• Proven track record of deploying and maintaining scalable Shopify stores.

• Fluent in Git and agile workflows.

• Excellent communication (English), efficient collaboration, and ability to collaborate across time zones.

• Readiness to own the tech stack, make structural decisions, and represent the team in cross-departmental conversations.

Benefits

• Receive a permanent employment contract
• You will be given a high degree of responsibility and decision-making freedom in all positions – contribute your own ideas from day one!
• Benefit from regular 360° feedback cycles and development paths
• You get the opportunity to work hybrid from home and in our new office in Berlin, with free drinks and snacks and everything else you need
• Take part in our team events
• Benefit from our company pension scheme
• Choose your favourite vouchers (Spotify, UrbanSports, Blinkist, WeShare, Rewe and many more) from our partner "Hrmony" every month
• Receive a voucher worth €200 every 2 months to order your favourite products from us to your home
• Receive free access to mental health support via our cooperation partner "OpenUp"
• We offer the opportunity to work from abroad for up to 3 months per year