GE
GenLayer
AI codingFull loopOutcomesPortfolio

AI-First Developer / Builder (Python & Full-Stack)

Barcelona, Catalonia, SpainHybridcontract
PythonClaude CodeOpenClaw
AI native signals
AI coding native

Uses Claude Code, Cursor, or similar AI coding tools

Full loop ownership

Design to build to ship to iterate, no handoffs

Outcome over process

Hired for results, not hours logged or process followed

Portfolio hire

What you've built matters more than credentials

What you'll build

AI-driven prototypes, internal systems, and full-stack applications that integrate LLMs, RAG pipelines, and intelligent contract capabilities. You will develop Python backends and APIs while experimenting with AI-assisted developer workflows.

What they're looking for

A builder who thrives in ambiguous, experimental environments and is already fluent in using AI agents as a core part of their daily development workflow. You should be comfortable rapidly iterating on cutting-edge blockchain and AI infrastructure within a small, high-velocity team.


  • *GenLayer Labs – Barcelona (Hybrid)**

### About GenLayer Labs

GenLayer Labs is a decentralized AI research collective building the trust infrastructure for the AI Age. We are the developers of GenLayer—an open, AI-driven Court of the Internet—a synthetic jurisdiction where autonomous agents and protocols can reason, transact, and govern at machine speed with sovereignty, transparency, and trust. Our infrastructure enables autonomous agents and smart contracts to access live web data, interpret natural language, and resolve disputes using AI consensus.

Backed by Maelstrom (Arthur Hayes), Arrington Capital, and North Island Ventures, we’re defining a new category of decentralized infrastructure: trustless decision-making for the AI age.

### Role overview

We are hiring an **AI-First Developer / Builder** to work on prototypes, tools, and internal systems that push the boundaries of what intelligent contracts and AI-enabled infrastructure can do.

You will collaborate closely with a small technical team and work in a highly **AI-assisted development environment**, using tools like Claude Code, OpenClaw and other agent-based workflows to accelerate exploration and development.

This role is ideal for someone who:

  • enjoys **building quickly.**
  • is comfortable with **ambiguity and experimentation.**
  • uses **AI agents as part of their daily workflow.**
  • wants to work on **cutting-edge AI + blockchain infrastructure.**

### What you’ll do

  • Build **AI-driven tools, prototypes, and internal systems.**
  • Develop **Python backends and APIs** for AI-powered features.
  • Work with **LLMs, agents, and RAG pipelines.**
  • Prototype **AI-assisted developer workflows.**
  • Experiment with new **AI capabilities for intelligent contracts.**
  • Design small **full-stack applications** (backend + simple frontend).
  • Use **AI copilots and agents extensively in development.**
  • Collaborate closely with a small team to rapidly test and iterate on ideas.
Posted 2 April 2026Apply now