Engineering

Business Development

Accounting

Product Management

Operations

Marketing

Support

Legal

Sales

Information Technology

Human Resources

Co-Founder & CEO

Chief Financial Officer

Claude helps researcher dig up decade-old Apache ActiveMQ RCE vulnerability (CVE-2026-34197)

World’s most experienced AI hacker, drives 102% ARR growth

Horizon3.ai Named to Fast Company’s Annual List of the World’s Most Innovative Companies of 2026

Craft Ventures Portfolio

Senior Engineering Manager, Integrations & APIs

Horizon3.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 Engineering Manager to lead their Integrations & API team, focusing on the scalability of their platform and building strategic integrations to enhance user workflows.

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to enabling organizations to proactively secure their systems. They are seeking a Senior Engineering Manager to lead the Integrations & API team, focusing on enhancing the API platform and building strategic integrations to improve user workflows.

Sales Development Representative

Horizon3.ai is a fast-growing cybersecurity company dedicated to enabling organizations to proactively find and fix exploitable attack vectors. The Sales Development Representative will assist in expanding the customer base, generating leads, and facilitating sales by connecting customers with the right salesperson.

Sales Development Representative, Chicago

Technical Recruiter

Horizon3.ai is a fast-growing, remote cybersecurity company focused on proactive security solutions. They are seeking a Technical Recruiter to manage full-cycle recruiting for engineering, product, and design roles, emphasizing the development of diverse talent pipelines.

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 Technical Recruiter to scale their engineering organization by partnering with hiring managers to attract and close top technical talent, while also driving recruiting strategy and improving processes.

Director Mid-Enterprise Sales

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to enabling organizations to proactively find and fix exploitable attack vectors. The Mid-Enterprise Sales Leader will drive revenue growth by building and leading a high-performing sales team in the Northeast region, focusing on customer acquisition and market penetration.

Director Mid-Enterprise Sales, Northeast

Head of Sales Engineering, Americas

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 visionary leader for their Sales Engineering organization who will inspire and develop a high-performing team while driving presales strategy and execution across various segments.

Director, Engineering, Proactive Offense

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to enabling organizations to proactively find, fix and verify exploitable attack vectors. The Director of Software Engineering – Offensive Security will lead the strategy, design, and development of NodeZero’s offensive capabilities, managing multiple engineering teams and driving innovation in autonomous attack content and platform scalability.

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to enabling organizations to proactively find and fix exploitable attack vectors. The Mid-Enterprise Sales Leader will drive revenue growth by building and leading a high-performing Northeast Region, Mid-Enterprise Account Executive team, focusing on customer acquisition and market penetration.

Mid-Enterprise Sales Engineer

Horizon3.ai is a fast-growing, remote cybersecurity company focused on helping organizations proactively find and fix vulnerabilities through their NodeZero platform. They are looking for a Mid-Enterprise Sales Engineer to work closely with Account Executives, simplify complex security concepts, and build trusted relationships with customers to demonstrate the value of their cybersecurity solutions.