Horizon3.ai · 1 month ago
Senior Vulnerability Analyst
United States
Full-time
Remote
Senior Level, Lead/Staff
$195K/yr - $242K/yr
8+ years expHorizon3.ai is a fast-growing, remote cybersecurity company dedicated to enabling organizations to proactively find, fix and verify exploitable attack vectors. They are seeking a Senior Vulnerability Analyst to analyze pentest outcomes, research vulnerabilities, and monitor emerging threats to support their cybersecurity efforts.
Artificial Intelligence (AI)Cyber SecurityEnterprise SoftwareMachine LearningNetwork Security
Responsibilities
Analyze the outcomes of NodeZero pentests to understand customer exposure to vulnerabilities and threats to inform our research prioritization
Research, document and publish mitigation and remediation techniques for the most impactful vulnerabilities affecting our customers
Monitor public vulnerability databases and threat intelligence sources to stay current on emerging threats
Track product coverage for emerging vulnerabilities and drive communication updates for both internal and external partners
Write, edit and publish public facing content about vulnerabilities
Create internal content about vulnerabilities and threat actors to support Go To Market and Marketing teams at Horizon3.ai
Collaborate cross-functionally with attack engineers, product managers, product marketing and customer teams
Qualification
Required
Hands‑on vulnerability research exposure, e.g., triage, root‑cause analysis, exploit reproduction/validation, or proof‑of‑concept evaluation
8+ years of experience in vulnerability analysis/research or cyber threat intelligence
Active exploitation awareness, including how zero‑days/n‑days propagate, PoC weaponization trends, and defender impact
Proven ability to work with discretion, handle sensitive information, and build trusted relationships
Vulnerability ecosystem fluency: CVE/CWE, NVD/NIST, CISA KEV, EPSS, vendor advisories, and patch/mitigation lifecycles
Familiarity with the penetration testing industry and vulnerability management ecosystems
Outstanding communication and interpersonal skills; able to influence at all levels
Exceptional organizational skills with the ability to manage multiple priorities and stakeholders
Preferred
Familiarity with and comfort writing Python
Experience performing data analysis and creating visualizations to illustrate broad trends
Experience communicating vulnerability and threat information to technical audiences outside of cyber security
Digital presence: experience using social channels and community forums to amplify research responsibly
Public speaking experience at conferences, webinars, podcasts, and customer briefings; comfortable fielding live Q&A
Benefits
Health, vision & dental insurance for you and your family
Flexible vacation policy
Generous parental leave
Company
Horizon3.ai
Horizon3.ai offers an autonomous penetration testing platform that helps organizations proactively find and fix security vulnerabilities.
201-500 employees
Funding
Current Stage
Late StageTotal Funding
$178.5MKey Investors
New Enterprise AssociatesCraft VenturesSignalFire
2025-05-22Series D· $100M
2023-08-08Series C· $40M
2021-10-29Series B· $30M
Leadership Team
Snehal Antani
Co-Founder & CEO
Holly Grey
Chief Financial Officer
Recent News
2025-12-16
Company data provided by crunchbase