AI Agent Engineer (Remote, Antofagasta)

Blacksmith Agency LLC; Antofagasta; Remote; CLP 116,959,000 - 175,439,000; Full time

Job summary

Blacksmith Agency is hiring an AI Agent Engineer to own and ship our internal automation roadmap, focusing on production LLM and agent systems used daily by the team. This is a full-time, sole-role position with remote work options for Latin America and South Africa.

You will build agents, establish evals and guardrails, and integrate internal systems like WordPress, Figma, and Google Workspace. Strong English communication is required to coordinate with a US team.

Qualifications

• Experience shipping production software in Python or TypeScript/Node.js.
• At least one LLM or agent system in production with real users.
• Hands-on tool use, evals and failure handling: validating model output, retries, human approval.
• Proficient with REST APIs, webhooks and cloud deployment.
• Strong spoken English for live discussions with a US team.

Responsibilities

• Build agents and workflows with tool use and function calling for production systems.
• Develop evals and guardrails to ensure safe model actions.
• Create integrations with WordPress, Figma, Google Workspace, Slack and internal MCP servers.
• Develop internal tools to reduce delivery and operations hours.

Skills

Python

TypeScript/Node.js

Production LLM systems

Testing & evals

REST APIs & webhooks

English communication

Tools

Anthropic API

OpenAI API

WordPress

Figma

Google Workspace

Slack

MCP servers

Job description

About The Role

Blacksmith Agency is building AI into every part of how we work. As AI Agent Engineer at Blacksmith, you own and ship our internal automation roadmap: production LLM and agent systems that real people on our team use every day. This is a builder role, not research. You will not train models.

Blacksmith Agency

• Engineering
• Full time, your only job
• Remote (Latin America and South Africa)

About The Role

Blacksmith Agency is building AI into every part of how we work. As AI Agent Engineer at Blacksmith, you own and ship our internal automation roadmap: production LLM and agent systems that real people on our team use every day. This is a builder role, not research. You will not train models.

We hire engineers who have already shipped an LLM system to production and can walk us through it in detail: what it did, how it was built, what broke and what they changed. This is a full-time seat and it has to be your only job.

What You Will Build

• Agents and workflows with tool use and function calling on Anthropic and OpenAI, with a framework or plain APIs.
• Evals that prove a change made things better, and guardrails that stop a model taking a wrong or unsafe action.
• Integrations connecting WordPress, Figma, Google Workspace, Slack and our internal systems, including MCP servers.
• Internal tools that take measurable hours off delivery, sales operations and project management.

What You Bring

• 2+ years building production software in Python or TypeScript / Node.js.
• At least one LLM or agent system you built yourself that ran in production with real users.
• Hands-on tool use, evals and failure handling: validating model output, retries, human approval.
• REST APIs, webhooks and cloud deployment.
• Strong spoken English. You will talk through technical decisions on live calls with a US team.

Not a fit if

• You freelance or contract for other clients and would keep them alongside this job.
• Your LLM work is demos, tutorials or chat prompting, or your focus is model training and research.