Full Stack Developer (Mid) – Remote (Europe)
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AI Kosmo builds AI-powered digital concierges for hotels. We're a young, remote-first team of 9 (4 devs including CTO) based across Europe, meeting quarterly in Northern Italy.
The Role
Your first projects:
* Port our marketing website to Next.js, translating Figma designs into pixel-perfect code and merging it with our cloud dashboard
* Own the dashboard UX evolution: you'll have real authority to rethink layouts, propose improvements, and shape how hoteliers interact with our product daily
Long-term, you'll work across our full stack as needed.
Tech Stack
* Frontend: Next.js 16+ (App Router, Server Components), React 19, Tailwind, shadcn/ui, TanStack Query
* Backend: Bun, TypeScript, Hono, Supabase, Redis
* Patterns: Functional style, ts-pattern, neverthrow
Requirements
* Strong React + Next.js with Server Components experience
* Strong opinions about good UX — you notice friction, propose solutions, and care about the details that make interfaces feel right
* Eye for design implementation
* Comfortable with TypeScript
* Eager to learn and adapt – you'll touch many parts of the codebase
* Excited to work with cutting-edge AI coding tools (Claude Code, Opencode, Cursor, xivgfpx etc.)
* Based in Europe
* You must have an online portfolio
* Fluent English (Italian helpful)
What We Offer
* Fully remote, full-time position
* Quarterly team meetups in Northern Italy (4 days)
* Small, collaborative team with direct access to CTO and CEO
* Real influence over product decisions — at our size, your UX instincts directly shape what we ship
* Start: ASAP