Remote AI Automation Engineer – Build Production LLM Apps

Blacksmith Agency LLC; Asturias; Remote; EUR 81,000 - 116,000; Full time

Benefits offered by this job

Remote work

Flexible schedule

Job summary

Blacksmith Agency is building an AI automation layer into every part of how we work. As AI Developer at Blacksmith, you own and ship our internal automation roadmap.

This is a builder role, not a research role; you will be building production systems on top of LLMs, not training models. You work directly with engineering and delivery leadership to transform a documented roadmap of automation workflows into shipped, working systems.

Qualifications

• 2+ years producing production software with Python or Node.js.
• Hands-on experience with LangChain, LangGraph, CrewAI, AutoGen.
• Proven API integration work with OpenAI or Anthropic (function calling, tool use, streaming).
• Strong understanding of REST APIs, webhooks, and cloud basics.
• English sufficient for async written work with a US-based team.

Responsibilities

• Develop agentic workflows using LangChain/LangGraph.
• Integrate with Anthropic and OpenAI APIs including tool use and function calling.
• Build internal tools that reduce manual hours across production.
• Create automation pipelines connecting WordPress, Figma, Google Workspace and internal CMS.
• Integrate MCP server as part of the AI stack.

Skills

Python/Node.js

Agent frameworks

API integration (OpenAI/Anthropic)

REST APIs/Webhooks

English communication

Tools

LangChain/LangGraph

OpenAI API

Anthropic API

Job description

Blacksmith Agency is building an AI automation layer into every part of how we work. As AI Developer at Blacksmith, you own and ship our internal automation roadmap.

This is a builder role, not a research role; you will be building production systems on top of LLMs, not training models. You work directly with engineering and delivery leadership to transform a documented roadmap of automation workflows into shipped, working systems.