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# Senior Machine Learning Engineer

- **Company:** Harrison Clarke
- **Location:** San Francisco, CA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Software Debugging, Distributed Systems, Machine Learning, Routing, Large Language Models, Agentic-AI
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25303_ce3cc340be4fee15b94dc6f1d4d27909

## About the Role

* Strong intuition for machine learning and LLM systems.
 * Experience building and deploying LLM-powered applications or agents under real-world reliability and performance constraints.
 * Ability to reason from first principles and debug complex, stochastic, and distributed system failures.
 * Comfort operating across research, product, and infrastructure boundaries in fast-moving environments.
 * Excellent software engineering fundamentals, including ownership of production-quality codebases and collaborative development practices.

## Description

* Design, build and iterate on agent architectures: planning, tool use, routing, memory, verification, and long-horizon execution
 * Own the data/knowledge layer that agents depend on
 * Improve performance and reliability
 * Collaborate with post-training and evaluation to align model behavior with the enviroments the agents run in