AI Automation Engineer: Build Production LLM Apps (Remote)

Blacksmith Agency LLC; Comisión de Fomento de Perú; Remote; ARS 136,310,000 - 204,465,000; Full time

Job summary

Blacksmith Agency is seeking an AI Integration Engineer to own and ship our automation roadmap. You will build production systems on top of large language models, not train them, working directly with engineering and delivery leadership on a documented automation roadmap.

You will implement agentic workflows using LangChain, LangGraph or equivalent frameworks, integrate with OpenAI and Anthropic APIs, and develop internal tools that reduce manual hours across our design and development

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

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

Skills

Python or Node.js

LLM/AI integration

API integration (OpenAI/Anthropic)

REST APIs & webhooks

English communication

Tools

LangChain

LangGraph

CrewAI

AutoGen

Job description

Blacksmith Agency is seeking an AI Integration Engineer to own and ship our automation roadmap. You will build production systems on top of large language models, not train them, working directly with engineering and delivery leadership on a documented automation roadmap.

You will implement agentic workflows using LangChain, LangGraph or equivalent frameworks, integrate with OpenAI and Anthropic APIs, and develop internal tools that reduce manual hours across our design and development