Senior Applied Scientist, Leo Security

What you’d do

Design and build neurosymbolic security systems that combine symbolic reasoning over graph knowledge with LLM agents, plus reinforcement learning and fine-tuning pipelines for security triage and detection. Build multi-agent systems that autonomously triage, enrich, and contain security events. Found on the employer's careers page on Oct 19, 2026. Apply through the link.

You’ll need

• 3+ years building ML models for business applications
• U.S. citizen, national, permanent resident, refugee, or asylee
• Neurosymbolic and symbolic reasoning systems
• Reinforcement learning and fine-tuning (GRPO, PPO, DPO)
• Multi-agent systems and LLM agents