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

Permanent employee, Full-time · Berlin

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

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About us

#You is a young, ambitious and fast growing technology-enabled brand builder in the field of direct-to-consumer e-commerce. Founded by an experienced team with a track record of launching and scaling DTC brands, we set ourselves apart with state of the art technology & operations, best in class marketing, creative content and a strong community of loving customers. All these provide the backbone to the fast growth of our brand portfolio.

Want to learn more about us, our benefits and what makes us special? Please check out our careers page to find more information!

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Your application!

We really appreciate your interest in joining our #Youniverse. Please fill in the following short form!