Full-stack Developer for AI-native SaaS Platform
Budget: €36 – €0 EUR
Senior Full-Stack Developer | Short Contract (4 weeks, remote)
We're building an AI-native B2B SaaS platform and need an experienced full-stack developer to connect existing mock UIs to real data. The frontend is built, the designs are done. This is about wiring everything up properly.
This is an AI-native codebase. Claude Code is the primary development tool, not an afterthought. We're looking for someone who already works this way: using AI to write, scaffold, and review code as a matter of course, not as a novelty. If that's not how you work, this isn't the right contract.
The work:
Connect mock UIs to live API calls across multiple user dashboards
Integrate Clerk authentication with correct role-based access (5+ distinct user personas)
Work within an established Next.js 16 / TypeScript monorepo (Turborepo)
Query and shape data from MongoDB
Maintain existing component library (shadcn/ui, Radix UI)
You must have:
3+ years writing strict TypeScript, naturally, not reluctantly
Next.js App Router fluency: RSC, Server Actions, middleware
MongoDB: schema design, aggregation pipelines, indexing
Auth: JWT, session management, claims-based access control
Genuine hands-on AI development experience, Claude Code specifically preferred
Self-directed: you will be working closely with a solo founder, not a dev team
Strong plus:
Vercel AI SDK v4, streaming, tool use
Recharts or similar
Railway deployment
Important: You will do a short live technical screen before engagement. Applications from agencies or teams will not be considered. We need the person doing the work to be the person we speak to.
We're building an AI-native B2B SaaS platform and need an experienced full-stack developer to connect existing mock UIs to real data. The frontend is built, the designs are done. This is about wiring everything up properly.
This is an AI-native codebase. Claude Code is the primary development tool, not an afterthought. We're looking for someone who already works this way: using AI to write, scaffold, and review code as a matter of course, not as a novelty. If that's not how you work, this isn't the right contract.
The work:
Connect mock UIs to live API calls across multiple user dashboards
Integrate Clerk authentication with correct role-based access (5+ distinct user personas)
Work within an established Next.js 16 / TypeScript monorepo (Turborepo)
Query and shape data from MongoDB
Maintain existing component library (shadcn/ui, Radix UI)
You must have:
3+ years writing strict TypeScript, naturally, not reluctantly
Next.js App Router fluency: RSC, Server Actions, middleware
MongoDB: schema design, aggregation pipelines, indexing
Auth: JWT, session management, claims-based access control
Genuine hands-on AI development experience, Claude Code specifically preferred
Self-directed: you will be working closely with a solo founder, not a dev team
Strong plus:
Vercel AI SDK v4, streaming, tool use
Recharts or similar
Railway deployment
Important: You will do a short live technical screen before engagement. Applications from agencies or teams will not be considered. We need the person doing the work to be the person we speak to.