Jobs · Engineering · California

AI Researcher

MindFort AI (YC X25) · Los Angeles, CA · 1 mo ago
HybridEngineeringFull-time

About the role

We're looking for an AI Researcher to join our team. This is a high-impact, high-ownership role where you'll be setting the direction for how we approach agent reasoning, planning, and evaluation. Your work will ship directly into a product that real security teams depend on.

Responsibilities

  • Research and develop novel methods to improve agent reasoning, planning, and multi-step exploitation capabilities.
  • Design and run experiments on LLM-based agents — prompting strategies, memory, tool use, fine-tuning, and RL.
  • Build rigorous evaluation harnesses and benchmarks to measure agent performance on real-world vulnerability discovery and exploitation.
  • Translate research findings into production agent improvements, working closely with engineering.
  • Stay on top of the latest in LLMs, agents, and offensive security, and bring the best ideas in-house.
  • Contribute to the research community where it makes sense — publications, write-ups, and thought leadership.

Qualifications

  • Bachelor’s or Master’s in Computer Science (or equivalent experience).
  • Strong track record in ML/AI research — publications, open-source work, or comparable demonstrable impact.
  • Deep hands-on experience with LLMs and agentic systems (prompting, tool use, fine-tuning, RL, or eval design).
  • Strong Python skills and the ability to turn research prototypes into something that runs in production.
  • Solid experimental rigor — you know how to design experiments, measure what matters, and avoid fooling yourself.
  • Strong communication skills and proven ability to thrive in small, cross-functional teams.

Nice to have

  • Publications at top venues (NeurIPS, ICML, ICLR, ACL, NAACL, USENIX Security, IEEE S&P, etc.).
  • Background in cybersecurity, web vulnerabilities, offensive security, or red-teaming.
  • Experience training and serving LLMs at scale.
  • Prior startup or early-stage experience.

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