Production LLM Engineer — Remote (LatAm & SA)

Blacksmith Agency LLC; Medellín; Remote; COP 291,602,000 - 421,203,000; Full time

Benefits offered by this job

Remote work in LATAM & SA

Job summary

Blacksmith Agency is building AI into every part of how we work. As LLM Applications Engineer at Blacksmith, you own and ship our internal automation roadmap: production LLM and agent systems used daily by the team. This is a builder role and your sole job.

We seek engineers who have shipped an LLM system to production with real users and can discuss the architecture, failures, and improvements in detail. Remote work eligible for LATAM/South Africa.

Qualifications

• 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 for live calls with a US team.

Responsibilities

• Build agents and workflows with tool use and function calling on Anthropic and OpenAI, with a framework or plain APIs.
• Create evals proving changes improved outcomes and guardrails that stop unsafe actions.
• Develop integrations connecting WordPress, Figma, Google Workspace, Slack and internal systems (MCP servers).
• Develop internal tools that cut hours off delivery, sales ops, and project management.

Skills

Python

TypeScript

Node.js

LLM Systems

REST APIs

Webhooks

English Communication

Tools

WordPress

Figma

Google Workspace

Slack

Job description

Blacksmith Agency is building AI into every part of how we work. As LLM Applications Engineer at Blacksmith, you own and ship our internal automation roadmap: production LLM and agent systems used daily by the team. This is a builder role and your sole job.

We seek engineers who have shipped an LLM system to production with real users and can discuss the architecture, failures, and improvements in detail. Remote work eligible for LATAM/South Africa.