Job Description
AI Engineer – Agentic AI & Frontier Models (Claude Code / Codex / MCP)
Location: San Francisco, CA - Hybrid
Key Responsibilities:
- Build, configure, and maintain agentic workflows using Claude Code and Codex, including creating skills, agents, and hooks
- Design and develop new MCP (Model Context Protocol) servers, and modify or extend existing MCPs to integrate tools and data sources into agentic environments
- Integrate frontier models (Anthropic Claude, OpenAI models) into applications via API calls, with well-structured prompting strategies
- Develop and maintain backend services, primarily using FastAPI, to support AI-powered applications
- Apply prompt engineering best practices to optimize model outputs for production use cases
- Stay current with the rapidly evolving frontier model and agentic tooling landscape
Required Skills & Experience:
- Frontier model fluency: Strong working knowledge of leading models from Anthropic (Claude) and OpenAI, and hands-on experience using them through tools like Claude Code and Codex
- Agentic tooling expertise: Demonstrated experience creating skills, agents, and hooks within Claude Code / Codex environments
- MCP development: Understanding of how MCPs work inside agentic tools, with the ability to create new MCP servers and modify existing ones
- Backend development: Experience building backend services with Python and FastAPI
- LLM integration: Experience making API calls to frontier models and implementing effective prompting techniques