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Autonomous penetration testing platform for proactive cybersecurity defense.

Co-Founder & CEO

Chief Legal Officer

Horizon3 Raises $250 Million Series E

The Week’s 10 Biggest Funding Rounds: A Big Week For Big Checks

Black Hat USA 2026 – Summary of Vendor Announcements (Part 2)

Horizon3 Raises $250M Series E at $2B+ Valuation to Lead the “AI vs. AI” Cybersecurity Era

Enterprise Account Executive

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to enabling organizations to proactively find and fix exploitable attack vectors. The Enterprise Account Executive will be responsible for driving sales growth and expanding the customer base in the cybersecurity technology sector, focusing on acquiring new accounts and building strong customer relationships.

Enterprise Account Executive, North Carolina

Manager, Sales Development

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to proactively finding and fixing exploitable attack vectors. They are seeking a Manager of Sales Development to lead and scale their SDR organization, focusing on developing talent and driving results in a fast-paced environment.

Manager, Sales Development - Chicago

Horizon3.ai is a fast-growing, remote cybersecurity company focused on enabling organizations to proactively secure their systems. The Enterprise Account Executive will drive sales growth, expand the customer base, and build strong relationships in the cybersecurity technology sector.

Staff Product Designer

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to enabling organizations to proactively find and fix exploitable attack vectors. They are seeking a Staff Product Designer to expand their portfolio of autonomous pentesting solutions, where the successful candidate will shape innovative product designs that enhance security through user-centered design.

Business Applications Manager

Horizon3.ai is a fast-growing remote cybersecurity company focused on proactively identifying and mitigating exploitable attack vectors. They are seeking a Business Applications Manager to lead the BizApps function within IT, responsible for administering applications, building integrations, and deploying AI tools to enhance operational efficiency across the organization.

Senior Product Marketing Manager, WebApp

Horizon3 is a fast-growing remote cybersecurity company whose NodeZero platform provides autonomous penetration testing and security assessment capabilities. The Senior Product Marketing Manager will lead the go-to-market strategy for NodeZero WebApp Pentesting, developing positioning, competitive content, launches, sales enablement, and product feedback processes to expand into the AppSec and ASPM markets.

Commercial Sales Engineer

Horizon3.ai is a fast-growing cybersecurity company focused on helping organizations proactively identify and mitigate security vulnerabilities. They are seeking an ambitious Commercial Sales Engineer early in their career to support sales growth, deliver powerful demos, and simplify complex security concepts for customers. This role offers the opportunity to work with cutting-edge technology and learn from industry experts while making a direct impact on revenue growth.

Horizon3.ai is a fast-growing cybersecurity company on a mission to help organizations proactively find, fix, and verify exploitable attack vectors. They are seeking an ambitious Commercial Sales Engineer who will work with cutting-edge technology and collaborate with experienced professionals to drive sales growth and enhance customer experiences.

Mid-Enterprise Account Executive

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to enabling organizations to proactively find and fix exploitable attack vectors. The Mid-Enterprise Account Executive will be responsible for driving sales growth, acquiring new accounts, and building strong customer relationships in the cybersecurity technology sector.

Mid-Enterprise Account Executive, NYC

Horizon3 is a fast-growing, remote cybersecurity company dedicated to enabling organizations to proactively find and fix exploitable attack vectors. The Enterprise Account Executive is responsible for driving sales growth, acquiring new accounts, and building strong customer relationships in the cybersecurity technology sector.