Senior Offensive Security Consultant
Horizon3.aiAutonomous Penetration company
United States$200,000 - $250,000 annuallySenior
NEA
SignalFire
Craft Ventures
Qualcomm Ventures
9Yards Capital
NightDragon
Software Engineering
About the role
TL;DR
Lead offensive security engagements, assessing customer environments to find and report vulnerabilities.
- •Horizon3 is seeking a Senior Offensive Security Consultant to lead end-to-end penetration testing and red team engagements.
- •You will assess customer production environments to uncover vulnerabilities and deliver actionable risk insights.
- •Key Responsibilities Lead full-scope penetration testing and red team engagements.
- •Perform in-depth testing of internal networks, web applications, APIs, and cloud environments.
- •Identify and demonstrate high-impact attack chains.
- •Deliver high-quality client-ready reports with remediation guidance.
- •Collaborate with internal teams and mentor junior consultants.
- •Requirements 5-10 years of hands-on experience in offensive security, red teaming, or penetration testing.
- •Strong background in web application penetration testing and internal network assessments.
- •Experience with compliance-focused engagements (PCI DSS, SOC 2).
- •Excellent written and verbal communication skills.
Required skills
Penetration TestingPythonBashGitOWASPSOC 2
Domain expertise
cybersecurityconsulting
Benefits & perks
Equity, Health insurance, Vision & dental insurance, Flexible vacation policy, Generous parental leave, Remote work
Tech stack
PythonBashPostmanGit