
51 - 200 employees
Founded 2019
🔒 Cybersecurity
🤖 Artificial Intelligence
☁️ SaaS
Cybersecurity • Artificial Intelligence • SaaS
Horizon3. ai is a cybersecurity company that specializes in autonomous penetration testing through its platform, NodeZero. The company's mission is to proactively identify and address attack vectors before they can be exploited, allowing organizations to continuously assess their security posture across various environments including cloud, IoT, and on-premises systems. Founded by veterans from the US Special Operations and National Security sectors, Horizon3. ai offers a self-service SaaS solution that provides organizations with insights into their security vulnerabilities without requiring persistent or credentialed agents.
📡 We watch Horizon3.ai's careers page
Every 2 hours
how often we check
122
roles posted in the last 30 days
About 39 days
usual time to fill a role
203
roles closed in the last year
Selected: 🆕 Date Added.
🕒 Yesterday
Engineering director leading Horizon3’s autonomous cybersecurity threat research, rapid response, and threat-hunting products. Building distributed 24/7 vulnerability research teams.
🇺🇸 United States – Remote
💵 $272.4k - $320.5k / year
⏰ Full Time
🔴 Lead
🖥 Software Engineer
👻 Ghost score 20%
🕒 Yesterday
Senior Attack Engineer building GCP offensive security capabilities for Horizon3’s autonomous NodeZero pentesting platform. Researching cloud attack paths and delivering production-quality Python automation.
🇺🇸 United States – Remote
💵 $206.3k - $242.7k / year
⏰ Full Time
🟠 Senior
👷🏻♀️ Engineer
👻 Ghost score 20%
🕒 Yesterday
Senior attack engineer researching Kubernetes attack paths and building Python capabilities. Enhancing Horizon3’s NodeZero autonomous pentesting platform with safe, customer-ready security validation.
🇺🇸 United States – Remote
💵 $206.3k - $242.7k / year
⏰ Full Time
🟠 Senior
🔙 Backend Engineer
👻 Ghost score 20%
🕒 Yesterday
OCI Attack Engineer developing Python-based attack paths for Horizon3.ai’s NodeZero autonomous penetration testing platform. Researching cloud vulnerabilities and integrating offensive capabilities into production.
🇺🇸 United States – Remote
💵 $206.3k - $242.7k / year
⏰ Full Time
🟠 Senior
👷🏻♀️ Engineer
👻 Ghost score 20%
🕒 Yesterday
Staff Backend Engineer leading Python, ETL, SQL, GraphQL, and distributed systems for Horizon3.ai’s autonomous cybersecurity pentesting platform. Driving reliable internal attack data into customer-facing results.
🕒 2 days ago
Senior Sales Engineer helping SLED organizations adopt Horizon3’s autonomous NodeZero cybersecurity platform. Leading technical discovery, demos, proof-of-value engagements, and enterprise deal strategy.
🕒 2 days ago
Senior SLED Account Executive driving enterprise cybersecurity sales to state, local, and higher-education organizations. Expanding Horizon3.ai’s autonomous security validation platform across public-sector infrastructure.
🕒 2 days ago
Engineering Manager leading offensive and backend engineers building NodeZero, Horizon3’s autonomous cybersecurity platform. Directing internal attack coverage, production safety, roadmap, and customer escalations.
🇺🇸 United States – Remote
💵 $238k - $280k / year
⏰ Full Time
🟠 Senior
🔴 Lead
👮♀️ Software Engineering Manager
👻 Ghost score 20%
🕒 2 days ago
Senior SLED Account Executive expanding Horizon3.ai's autonomous cybersecurity platform across Texas state, local, and higher-education accounts. Driving complex enterprise sales, procurement, and channel partnerships.
🕒 2 days ago
Senior SLED Account Executive expanding Horizon3.ai’s autonomous cybersecurity platform across California state, local, and higher-education accounts. Managing complex enterprise sales and public procurement.
🏄 California – Remote
💵 $149k - $175k / year
⏰ Full Time
🟠 Senior
🧑💼 Account Executive
👻 Ghost score 20%
🕒 2 days ago
Senior SLED Account Executive selling Horizon3.ai’s autonomous penetration-testing platform to Florida state, local, and higher-education organizations. Driving enterprise pipeline, procurement, and multi-year cybersecurity contracts.
🕒 3 days ago
Senior Sales Engineer helping Nordic customers understand Horizon3’s autonomous cybersecurity platform. Delivering demos, proofs of concept, technical sales support, and cybersecurity solutions.
🗣️🇸🇪 Swedish Required
🕒 3 days ago
Senior Software Engineer building backend-heavy full-stack capabilities for Horizon3.ai’s autonomous penetration-testing platform. Owning product delivery, APIs, cloud services, and customer risk experiences.
🇺🇸 United States – Remote
💵 $200k - $235k / year
⏰ Full Time
🟠 Senior
🧑💻 Full-stack Engineer
👻 Ghost score 20%
🕒 3 days ago
Account Executive growing MSP partnerships and revenue for Horizon3’s autonomous NodeZero cybersecurity platform. Managing consultative sales cycles, Pax8 collaboration, pipeline development, and partner adoption.
🇺🇸 United States – Remote
💵 $96k - $120k / year
⏰ Full Time
🟡 Mid-level
🟠 Senior
🧑💼 Account Executive
👻 Ghost score 20%
🕒 3 days ago
Senior Account Executive expanding Horizon3.ai’s autonomous penetration-testing platform across state, local, and higher-education accounts. Driving complex public-sector enterprise sales and procurement.
🇺🇸 United States – Remote
💵 $149k - $175k / year
⏰ Full Time
🟠 Senior
🧑💼 Account Executive
👻 Ghost score 20%
🕒 4 days ago
Enterprise Account Executive selling Horizon3.ai’s autonomous NodeZero penetration-testing platform across Central Spain. Driving enterprise revenue through direct sales, channel partners, and consultative customer engagements.
🗣️🇪🇸 Spanish Required
🕒 4 days ago
Enterprise Account Executive growing Horizon3.ai’s NodeZero cybersecurity platform across Catalonia. Winning enterprise accounts and developing reseller partnerships around Barcelona.
🗣️🏴 Catalan Required
🕒 4 days ago
Channel Sales Engineer enabling MSP/MSSP partners to sell and deliver Horizon3.ai’s autonomous NodeZero cybersecurity platform. Providing technical training, demos, solution design, and partner advisory across Singapore.
🕒 4 days ago
Staff backend engineer leading services, APIs, and data models for Horizon3’s NodeZero autonomous pentesting platform. Driving cross-team architecture and customer-focused assessment experiences.
🇺🇸 United States – Remote
💵 $230k - $270k / year
⏰ Full Time
🔴 Lead
🧑💻 Full-stack Engineer
👻 Ghost score 20%
🕒 4 days ago
Principal Backend Engineer shaping multi-tenant enterprise platform services for Horizon3’s autonomous cybersecurity product NodeZero. Driving architecture, reliability, and technical direction across teams.
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