Remote LLM Engineer – Production AI & Integrations

Blacksmith Agency LLC; Pietermaritzburg; Remote; ZAR 1,488,000 - 2,314,000; Full time

Job summary

Blacksmith Agency is hiring a LLM Engineer to own and ship our internal automation roadmap. This builder role focuses on production systems atop AI models, not model training.

You will implement agent workflows, integrate OpenAI/Anthropic APIs, and build tools to reduce manual work across design and development. This remote role supports Latin America and South Africa with a US-based team.

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 and ship internal automation components for the AI stack.
• Develop agent-based workflows using LangChain, LangGraph or similar frameworks.
• Integrate with Anthropic and OpenAI APIs including tool use and function calling.
• Create production-ready integrations to connect WordPress, Figma, Google Workspace and internal CMS.
• Assist MCP server integrations as part of the AI stack.

Skills

Python or Node.js

LangChain/LangGraph

API integration (OpenAI/Anthropic)

REST APIs & webhooks

English for async collaboration

Tools

LangChain

LangGraph

CrewAI

AutoGen

Job description

Blacksmith Agency is hiring a LLM Engineer to own and ship our internal automation roadmap. This builder role focuses on production systems atop AI models, not model training.

You will implement agent workflows, integrate OpenAI/Anthropic APIs, and build tools to reduce manual work across design and development. This remote role supports Latin America and South Africa with a US-based team.