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Member of Technical Staff, AI Engineer
$180K–$240K
San Francisco, CA, US · Staff · Full-time · Posted Oct 5, 2026
- Experience
- 3+ years of software engineering, with at least one year building production LLM systems.
- Visa sponsorship
- Must be authorized to work in the US; visa sponsorship is not available.
About the job
Build and ship autonomous AI agents that perform penetration testing against production applications and cloud environments.
What you'll do
- Design agent workflows that plan, execute, and verify multi-step exploitation chains; build the tools agents use.
- Own agent evaluations and reduce false positives.
- Manage inference cost and latency, including prompt caching, context strategy, and model selection.
What they ask for
- 3+ years of software engineering, including at least one year building production LLM systems.
- Strong TypeScript skills and comfort with async systems, distributed systems, and long-running workflow orchestration.
- Practical understanding of context engineering, tool design, and agent failure modes.
- Experience building or maintaining an evaluation harness and understanding the gap between offline metrics and production behavior.
Nice to have
- Security background, CTF experience, bug bounty history, or a track record of breaking things you were not supposed to break.
Pay
$180K – $240K (base salary; currency not stated)
Tools
TypeScript, LangGraph, Temporal, GCP, AWS Bedrock, Anthropic API, Langfuse, Braintrust
AI focus
Develop autonomous offensive-security agents and their reasoning loops, tools, memory, evaluations, and inference optimization.
Model-written summary · the original posting is authoritative