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

GenLayer Labs Corp.
Barcelona, Spain
2 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English

Job location

Remote
Barcelona, Spain

Tech stack

API
Artificial Intelligence
Cloud Computing
Databases
Continuous Integration
Integrated Development Environments
Python
Node.js
Blockchain
React
Large Language Models
Backend
Front End Software Development
Data Pipelines
Docker

Job description

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.

Requirements

What we're looking for

We care much more about how you build than how many years of experience you have.

Strong candidates typically have: Core skills

  • Strong Python development.
  • Experience building APIs or backend systems.
  • Comfortable with modern full-stack development (React, Node, etc. is a plus).
  • Experience with LLMs, AI APIs, or AI tooling.
  • Familiarity with LangChain, vector databases, RAG, or agents is a plus.

Mindset

  • Builder mentality -- you like shipping things.
  • Comfortable working with AI-assisted coding tools.
  • Curious and experimental.
  • Able to work autonomously in a fast-moving environment.
  • Comfortable working with uncertain or evolving specifications.

Nice to have

  • Experience with crypto, blockchain, or smart contracts
  • Experience with Docker, cloud infrastructure, or CI/CD
  • Familiarity with data pipelines or document processing

Benefits & conditions

  • Total rewards package including competitive salary,equity package, and benefits.
  • Flexible and remote work environment.
  • Opportunity to build the marketing function for a VC-backed start-up at the intersection of blockchain and AI
  • Professional development and growth opportunities.
  • Be a part of a dynamic and innovative team that is shaping the future of decentralized applications

Join GenLayer Labs and be a part of a team that is pushing the boundaries of what is possible with AI and blockchain technology.

Apply for this position