Quick Summary
Get to Know Us Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find and fix and verify exploitable attack vectors before criminals exploit them.
Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find and fix and verify exploitable attack vectors before criminals exploit them. Our flagship product, the NodeZeroTM platform, delivers production-safe autonomous pentests and other key assessment operations that scale across the largest internal, external, cloud, and hybrid cloud environments. NodeZero has been adopted by organizations of all sizes, from small educational institutions to government agencies and Global 100 enterprises. It is used by ITOps/SecOps teams, consulting pentesters, and MSSPs and MSPs.
We are a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Collectively, we are a team of learn it alls, committed to a culture of respect, collaboration, ownership, and results.
As a remote first company, we require minimum 25Mbps consumer grade broadband connection.
About the Role
~1 min readHorizon3.ai is redefining how organizations defend themselves against modern cyber threats. Our autonomous security platform, NodeZero, helps companies proactively find and fix vulnerabilities before attackers do.
We’re looking for a Mid-Enterprise Sales Engineer to partner closely with our Account Executives and help growing organizations understand the technical and business value of our platform. This role is ideal for someone who thrives in high-velocity environments, can simplify complex security concepts, and enjoys building trusted relationships with customers.
Responsibilities
~1 min readRequirements
~1 min readStay engaged after the deal closes to ensure a smooth technical handoff, reinforce initial value, and maintain executive and practitioner alignment—remaining attentive to adoption, impact, and expansion signals
5+ years of experience as a Sales Engineer or Solutions Architect, ideally in cybersecurity or infrastructure
Located in CST
Experience working Mid-Market and Enterprise accounts with a mix of technical depth and executive interaction
Strong understanding of cybersecurity fundamentals (threat landscape, vulnerability management, identity, cloud, AD, etc.)
Ability to simplify complex technical concepts for both practitioners and executives
Experience running structured PoVs and managing technical validation cycles
Strong collaboration skills and comfort operating in a fast-paced, high-growth environment
Bachelor’s degree in Computer Science, IT, Cybersecurity, or related field (or equivalent experience)
You build strong, trust-based relationships with Mid-Market/Enterprise customers
PoVs are structured, outcome-driven, and consistently demonstrate clear value
You partner seamlessly with AEs and contribute meaningfully to pipeline progression and win rates
Customer feedback informs ongoing product and positioning improvements
What We Offer
~1 min readWhat We Offer
~1 min readHorizon3 is not just an equal opportunity employer - we are a community that values diversity, equity, and inclusion as fundamental principles of our culture and success. We are dedicated to fostering a workplace where everyone feels welcome and respected, regardless of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, hair length or any other legally protected status by law.
Our commitment to diversity and inclusion means we strive to attract, develop, and retain a workforce that reflects the varied communities we serve. We believe that diverse perspectives drive innovation and strengthen our ability to create cutting-edge cybersecurity solutions. At Horizon3, every team member is valued and supported in an environment that encourages personal and professional growth.
We welcome candidates from all backgrounds and experiences, and we encourage all qualified individuals to apply. Come be a part of Horizon3, where your unique contributions are recognized, and your potential is limitless.
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice.
In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.
Location & Eligibility
Listing Details
- Posted
- April 6, 2026
- First seen
- May 6, 2026
- Last seen
- May 8, 2026
Posting Health
- Days active
- 0
- Repost count
- 0
- Trust Level
- 23%
- Scored at
- May 6, 2026
Signal breakdown
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