Mid full-stack engineer

Full Stack Developer (Mid) – Remote (Europe) 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, Tan Stack Query Backend: Bun, Type Script, 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 Type Script 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, 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