AI Systems Engineer — Build Production Automation

Blacksmith Agency LLC; Asturias; Remote; EUR 60,000 - 90,000; Full time

Job summary

Blacksmith Agency is seeking an AI Software Engineer to own and ship our internal automation roadmap. This builder role focuses on production systems atop AI models, not model training, and requires hands-on work with LangChain, LangGraph, and OpenAI/Anthropic APIs.

You will collaborate with engineering and delivery leadership to convert a documented automation roadmap into shipped, working systems, including integration with WordPress, Figma, Google Workspace and the internal CMS.

Qualifications

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

Responsibilities

• Build agentic workflows using LangChain, LangGraph or equivalent frameworks.
• Integrate with OpenAI and Anthropic APIs including tool use and function calling.
• Create internal tools to reduce manual hours across design and development processes.
• Develop automation pipelines connecting WordPress, Figma, Google Workspace and our internal CMS.
• Perform MCP server integrations as part of the AI stack.

Skills

Python

Node.js

LangChain

LangGraph

OpenAI API

Anthropic API

REST APIs

Webhooks

Cloud deployment

English communication

Tools

LangChain

LangGraph

CrewAI

AutoGen

OpenAI API

Anthropic API

Job description

Blacksmith Agency is seeking an AI Software Engineer to own and ship our internal automation roadmap. This builder role focuses on production systems atop AI models, not model training, and requires hands-on work with LangChain, LangGraph, and OpenAI/Anthropic APIs.

You will collaborate with engineering and delivery leadership to convert a documented automation roadmap into shipped, working systems, including integration with WordPress, Figma, Google Workspace and the internal CMS.