Member of Technical Staff, AI Engineer

Parameter builds AI agents that perform autonomous offensive security testing against production applications and cloud environments. The Member of Technical Staff, AI Engineer will design and ship agent workflows, build the tools and memory systems they use, evaluate and improve agent performance, reduce false positives, and manage inference cost and latency at scale.

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