Horizon3AI
Staff Attack Engineer, External
$238K–$280K
US, Remote · Remote · Staff · Full-time · Posted Oct 19, 2026
- Experience
- 10+ years; experience in offensive security, security research, or security-focused software engineering, with recent work building and shipping offensive tooling.
About the job
Leads technical direction for external attack capabilities in an autonomous pentesting platform, turning reconnaissance and attack research into scalable, production-safe workflows.
What you'll do
- Build scalable Python reconnaissance workflows and parse external data into actionable information.
- Automate multi-step attack paths, extend relationship modeling, and validate scenarios in representative test environments.
- Set research and coverage priorities, mentor engineers, and collaborate on documentation and research.
What they ask for
- 10+ years of hands-on experience in offensive security, security research, or security-focused software engineering, with recent work building and shipping offensive tooling.
- Deep hands-on offensive experience against external attack surfaces, from reconnaissance through initial access and post-exploitation.
- Experience building scalable reconnaissance and discovery systems and automating multi-step attack workflows.
- Strong Python software engineering skills and experience processing unstructured data and connecting high volumes of data.
Nice to have
- OSCP (or OSEP, CRTO, or equivalent offensive certifications).
- Experience with internet-scale data sources, cloud and SaaS identity attack surfaces, graph databases, or production-safe autonomous offensive tooling.
Pay
$238,000 - $280,000 annually (USD, base salary)
Tools
Python, Entra ID, Okta, AWS
Model-written summary · the original posting is authoritative