Member of Technical Staff, AI Engineer

Parameter builds AI agents that perform autonomous penetration testing against production applications and cloud environments. The AI Engineer will build agent systems for multi-step exploitation, develop their tools and evaluation processes, reduce false positives, and manage inference cost and latency.

Responsibilities:

• Design and ship agent workflows in LangGraph and Temporal that plan, execute, and verify multi-step exploitation chains
• Build the tool layer the agents operate through: HTTP clients, auth handling, browser control, cloud enumeration, payload generation
• Own the eval loop. We use Braintrust and Langfuse. You'll define what “good” means for agent runs and make the number go up
• Reduce false positives, which is the single hardest problem in this space and the thing customers care most about
• Manage inference cost and latency at scale, including prompt caching, context strategy, and model selection across Claude and Bedrock