LLM Engineer; Remote

Blacksmith Agency is building an AI automation layer into every part of how we work. As LLM Engineer at Blacksmith, you own and ship our internal automation roadmap. This is a builder role, not a research role. You will not be training models, you will be building production systems on top of them.

• Engineering
• Full time
• Remote (Latin America and South Africa)

• Agentic workflows using Lang Chain, Lang Graph or equivalent frameworks.
• Integrations with Anthropic and OpenAI APIs including tool use and function calling.
• Internal tools that reduce manual hours across our design and development production process.
• Automation pipelines connecting Word Press, Figma, Google Workspace and our internal CMS.
• MCP server integrations as part of our broader AI stack.

• 2+ years building production software with Python or Node.js.
• Hands-on experience with Lang Chain, Lang Graph, CrewAI, Auto Gen 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.