Full-Stack Developer (Vue-first) – m/f/d

Location: Berlin or remote within CET ±2h | Full-time

What we do

At Joy_ we’re turning every product on the internet into a potential moment of appreciation.

Our infrastructure stitches together live merchant feeds, AI-powered search and instant checkout rails so brands can offer any product online, in real time, through a single API.

That engine powers a new class of experiences:

• Commerce infrastructure for retailers – plug Joy_ into site-search or checkout to fill “out-of-stock” gaps, drop-ship on demand and grow assortment with zero inventory or new workflows.
• Gift cards that aren’t stuck in walled gardens – branded, media-rich and redeemable for millions of items instead of a single store.
• Loyalty & rewards that feel personal – users save for the exact product they want, not a generic catalogue.
• Employee benefits that people actually use – from monthly stipends to one-off “thank-yous”, all white-labelled and API-first.

Because everything is virtual we need no warehouses, no middlemen and zero extra stock; partners keep the margin while customers enjoy true flexibility.

Whether you’re an e-commerce giant filling assortment gaps, a fintech nudging action with meaningful rewards, or an HR platform boosting engagement, Joy_ is building the infrastructure for the future of commerce.

The role

As our second dedicated engineer on the client side, you will:

• Own the entire front-end experience—from design critique to pixel-perfect implementation—and contribute to the Python back-end when needed.
• Craft elegant, responsive UIs for customers (B2C gift card flows) and partners (B2B self-serve dashboards, embeddable widgets).
• Shape component libraries, design tokens, and accessibility guidelines in a company with focused product-management and design resources.
• Pair with founders on product discovery, run quick experiments, and measure impact.