Horizon3AI
Senior Attack Engineer, Internal Systems
$206K–$243K
US, Remote · Remote · Senior · Full-time · Posted Oct 26, 2026
About the job
Develop and lead production-grade autonomous internal network and Active Directory attack capabilities for the NodeZero pentesting platform, from research and design through delivery and maintenance.
What you'll do
- Research internal network attack techniques and turn them into safe, repeatable platform capabilities.
- Design, build, and maintain scalable Python systems, attack modules, and platform models.
- Lead complex projects, mentor teammates, and collaborate across teams to improve engineering practices and customer value.
What they ask for
- Deep hands-on offensive security experience against internal enterprise networks and Active Directory, from initial foothold through domain and enterprise compromise.
- Expert-level Python proficiency and a record of shipping and maintaining tested, documented, production-quality code.
- Strong knowledge of internal network attack techniques, including protocol exploitation, privilege escalation, lateral movement, and credential access.
- Experience designing scalable software systems and independently leading complex technical projects.
Nice to have
- OSCP, OSEP, CRTO, or equivalent offensive certification.
- Experience with Windows management-plane attacks, graph databases, offensive tools, or production-safe autonomous tooling.
Pay
$206,278 - $242,680 USD base salary
Tools
Python, NodeZero, Active Directory, Docker, Kubernetes, Postgres, Neo4j
AI focus
Preferred experience building autonomous or automated offensive tooling, including applying AI/LLM technologies to enhance attack workflows.
Model-written summary · the original posting is authoritative