# Senior/Staff Attack Engineer, Rapid Response at Horizon3.ai

- Company: Horizon3.ai
- What the company does: Horizon3 uses real-world attacks to safely show what attackers can actually do in your environment—so you can fix and prove what matters. Backed by NEA.
- Company website: https://horizon3.ai/
- Type: Startups (AI role)
- Level: Senior
- Location: US, Remote
- Work setup: Remote
- Pay: $200K to $275K base salary per year (USD)
- Posted: 2026-10-07
- Apply by: 2026-11-23
- Apply: https://jobs.ashbyhq.com/horizon3ai/315c594a-2c9d-4400-b3fe-31ca8c589d81?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/horizon3-ai-senior-staff-attack-engineer-rapid-response/

## About the role

Research and reproduce high-consequence vulnerabilities across enterprise networks, applications, identity systems, cloud environments, and infrastructure—including CISA KEVs, CVEs, N-Days, and Zero-Days. Study attacker tactics, techniques, procedures, and campaigns observed in the wild, including tradecraft not tied to a single CVE. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Strong Python and software engineering skills, including experience building, testing, and operating production-quality tooling
- Solid penetration testing, vulnerability research, and exploit-development fundamentals
- Hands-on experience with enterprise networks, applications, identity systems, cloud environments, or endpoint security
- Demonstrated ability to reproduce vulnerabilities and convert manual techniques into reliable automation
- Understanding of common attack chains, trust boundaries, authentication and authorization, privilege escalation, and lateral movement
- Ability to balance speed, safety, reliability, coverage, and actionable evidence

Tags: Engineering

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/horizon3-ai-senior-staff-attack-engineer-rapid-response/