Requirements

• 5+ years in hands-on technical security roles with ability to think structurally about threat modeling and failure modes
• Direct experience with offensive security tactics such as threat modeling and red teaming, preferably in environments handling sensitive customer data
• Engineering mindset treating security as an engineering problem; able to implement fixes, controls, detections, and automate scalable security processes
• Comfortable working at startup pace with ambiguity, changing priorities, and strong willingness to grind when necessary
• Strong written communication skills for producing clear and precise security documentation such as threat models and reports

Nice to haves

• Experience with AI/ML system security or large language model (LLM) security
• Background in detection engineering, security operations center (SOC), or incident analysis
• Familiarity with insider threat programs or insider risk frameworks

What you'll be doing

• Red-team Apollo’s internal software, infrastructure, and AI agent access controls to build realistic attack trajectories and safeguard internal surfaces
• Design novel security solutions for emerging AI threats where no existing playbook applies, setting the security posture standard
• Track adversary tactics, techniques, and campaigns; convert intelligence into high-signal detections tailored to Apollo’s threat landscape
• Own security findings through to deployed fixes; build and socialize durable controls such as checks, tests, defaults, and detections
• Lead projects including red-teaming agent sandboxes and developing comprehensive threat models for coding agents with internal access

Perks and benefits

• Market competitive salary and equity with ranges: San Francisco $214,000–$280,000; London £144,000–£189,000
• Engineers have effectively unlimited token budgets to use compute resources for better results
• Flexible working hours and schedule with some work-from-home arrangements
• Unlimited vacation and sick leave; up to 6 months paid parental leave
• Comprehensive health, dental, and vision insurance plans
• Retirement savings with competitive employer matching (e.g., 401(k) for US employees)
• Provided lunch, dinner, and snacks on workdays
• Paid work trips including staff retreats, business trips, and relevant conferences
• $1,000 yearly professional development budget
• Relocation support and visa sponsorship where applicable