Company profile
Remote jobs at horizon3ai
Horizon3.ai is a cybersecurity company that builds NodeZero, an autonomous, cloud-based penetration testing platform that emulates attacker techniques to continuously find, fix, and verify exploitable vulnerabilities across on-premises, cloud, and identity environments for enterprise and federal customers.
- Industry
- Cybersecurity / Autonomous penetration testing (Breach and Attack Simulation)
- Company size
- 100-250 employees
- Founded
- 2019
- Funding
- Round $40,000,000 (Series C, Aug 2023); $250,000,000 (Series E, 2026) Series C and Series EStructure
Series C of $40M closed August 2023; subsequent Series E of approximately $250M at a $2B+ valuation reported in 2026 (TechCrunch / BusinessWire coverage). Total disclosed venture funding exceeds $290M across reported rounds.View more
Series C of $40M closed August 2023; subsequent Series E of approximately $250M at a $2B+ valuation reported in 2026 (TechCrunch / BusinessWire coverage). Total disclosed venture funding exceeds $290M across reported rounds.Lead investor Craft Ventures (Series C)Participants SignalFire, Craft Ventures
Jobs
Most common locations
- US14
- United States6
- US (Remote)1
Most common roles
- Other11
- Backend4
- DevOps2
- Data Engineer1
- Frontend1
horizon3ai currently has 21 open remote roles on Hidden Jobs. 7 were added during the last 7 days. The most represented roles are Other (11), Backend (4), DevOps (2). Salary information is not disclosed on the current active listings. The most common eligibility is US (14), United States (6), US (Remote) (1).
Experience levels represented: Senior (14), Staff (4), Lead (1), Not specified (1).
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Current openings
21 active roles detected; full descriptions are public and original application links require Hidden Jobs Access.
Software Engineer, API Platform
Backend Full-time Permanent US
Help build the internal API layer that connects an autonomous penetration-testing platform's services and powers the interfaces customers and integrations rely on. As a Software E…
IT Analyst (Remote)
Other Full-time Permanent US
A fully remote IT Support Analyst position providing hands-on technical assistance to a distributed workforce, with a focus on East Coast coverage. The role is a front-line help d…
Software Engineer, Integrations Delivery & Support
Backend Full-time Permanent US
A remote cybersecurity company is hiring a Software Engineer to join its Integrations Delivery & Support team, which builds and maintains first-party connectors between an autonom…
Senior/Staff Attack Engineer, Rapid Response
Other Full-time Permanent US
Join a remote cybersecurity organization as a Senior/Staff Attack Engineer focused on a Rapid Response product line. You will research real-world exploitation techniques and conve…
Staff Software Engineer, Front End
Frontend Full-time Permanent United States
Join a core front-end team at a fast-growing remote cybersecurity organization as a Staff Software Engineer. This central architecture and enablement group shapes the user experie…
Senior Engineering Manager, Clients Team
Other Full-time Permanent US
Lead a client platform engineering organization responsible for the containerized software that runs inside customer environments to power autonomous security assessments. The rol…
Senior Product Analytics Engineer
Data Engineer Full-time Permanent US
A remote cybersecurity company is investing in a company-wide data strategy to make its data trusted, governed, and built to support revenue growth. The Senior Product Analytics E…
Senior Customer Onboarding Engineer
Other Full-time Permanent US
A remote cybersecurity company is hiring a Senior Customer Onboarding Engineer to own the first 30 days of new enterprise deployments of its autonomous security assessment platfor…
Senior IT Systems Engineer
Other Full-time Permanent US
This is a senior-level IT Systems Engineer position for a security-minded generalist who enjoys both identity and email hardening and hands-on network engineering. The role blends…
Staff Developer Experience Engineer
DevOps Full-time Permanent United States
A staff-level engineering position focused on shaping how a cybersecurity organization builds, tests, releases, and operates software. The role leads a Developer Experience functi…
Staff Site Reliability Engineer
DevOps Full-time Permanent US (Remote)
This staff-level SRE position is foundational to setting engineering-wide reliability strategy and standards at a remote cybersecurity company. The role owns the SRE operating mod…
Staff Platform Engineer
Other Full-time Permanent US
A Staff Platform Engineer role focused on building and evolving the cloud and delivery foundations behind an autonomous cybersecurity assessment platform. The position blends hand…
Senior Detection Engineer (EDR), Defensive Agent
Other Full-time Permanent United States
This role provides the blue-team domain authority for a defensive security agent focused on endpoint detection and response. Working between Product, Engineering, and AI research,…
Senior Federal Compliance Analyst
Other Full-time Permanent US
A senior individual contributor opportunity for a compliance specialist to own and advance the federal compliance program for cloud-hosted offerings targeting U.S. Department of D…
Federal IT Enterprise Services Administrator
Other Full-time Permanent United States
This position administers identity, collaboration, and productivity tooling for a U.S. federal environment, with secondary support for broader commercial IT services. Based remote…
Senior Customer Enablement Manager
Support Full-time Permanent United States
The Senior Customer Enablement Manager designs, builds, and continuously improves a customer learning experience for an autonomous pentesting and attack-path verification platform…