About Simbian AI Simbian AI is building the world's first autonomous AI security agent - one that thinks, hunts, and responds like a seasoned security analyst, at machine speed. We're backed by top-tier investors and trusted by security teams who are drowning in alerts. We're now building an AI pentesting agent that autonomously probes, exploits, and reports vulnerabilities across modern infrastructure. You'll be the adversarial brain behind it. The Role We're building AI that does offensive security work. Not assists with it - actually does it. We're looking for a Red Teamer who brings deep, hands-on attack expertise and wants to turn that knowledge into AI-powered products. This is not a role where you run red team engagements. You are the expert who makes our AI agents think and act like skilled attackers - across whatever domain we're building in. What You'll Do - Be the offensive security brain behind our AI agents - defining how they reason, plan, and execute across attack scenarios - Translate attacker methodology into structured workflows the AI can learn from and act on - Cover the breadth of offensive security: network and web pentesting, phishing and social engineering, cloud and infrastructure attacks, adversary emulation, threat intelligence - Validate product output against what a skilled human attacker would actually do - close the gap when the AI falls short - Research emerging techniques across the offensive security landscape and get them into the product - Work closely with engineering to improve agent accuracy, realism, and coverage - Document attack logic, edge cases, and findings in ways that feed back into the product Requirements What We're Looking For - 3-6 years in offensive security, red teaming, or penetration testing - Strong offensive security background across multiple domains: web, network, cloud, social engineering, or adversary simulation - Real-world experience: pentesting, bug bounty, red team engagements, CTFs, or security research - Ability to break complex attack chains into structured, repeatable steps - Someone who thinks in attacker TTPs, not just tools - Curiosity about AI and genuine interest in building with it, not just using it Bonus: - Experience with LLMs, agentic systems, MITRE ATT&CK, or security automation - Working knowledge of prompt injection, jailbreaking techniques, and OWASP Top 10 for LLMs - CEH, OSCP, or equivalent - preferred, not required Why This Is Different? Most red teamers execute campaigns. Here, you build the agent that runs them. Your expertise becomes the product - and scales beyond what any single person could do alone. Nice to Have - Experience red teaming agentic AI systems or multi-agent pipelines - Background in threat intelligence or APT simulation - Contributions to bug bounty programs (AI/ML targets a plus) - Familiarity with AI safety and alignment concepts Benefits -Work on a problem most security teams haven't even defined yet - Direct impact on product - your findings shape what we build - Remote-first, async-friendly culture - Competitive comp + equity at an early-stage AI security company - Work alongside people who've shipped security products at sc