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Horizon3.ai
Horizon3.ai
51 – 200 Employees
Artificial IntelligenceCybersecuritySaaS
Horizon3.ai is a cybersecurity and artificial intelligence company founded in 2019 that develops autonomous penetration testing software. Its NodeZero platform helps organizations continuously evaluate their security posture by identifying exploitable attack paths across cloud, IoT, and on-premises environments. Designed as a self-service SaaS solution, NodeZero provides vulnerability insights without requiring persistent or credentialed agents. Horizon3.ai was founded by veterans of the US Special Operations and National Security sectors and focuses on helping security teams proactively address weaknesses before attackers can exploit them.
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Senior Director of Engineering, Precision Defense

Lead and grow Horizon3.ai’s Precision Defense engineering organization for its autonomous cybersecurity platform. Expand defensive capabilities across deception, security control validation, and blue team agents.

USUnited States
$270,000 – $365,000 / year
RemoteFull-timeSeniorEnglish RequiredSoftware Engineer
CloudCyber SecurityDistributed Systems

Description

  • Grow and lead the Precision Defense engineering organization
  • Set its technical strategy, operating model, and staged roadmap
  • Develop engineering managers, technical leads, and senior individual contributors
  • Set goals and practices that clarify progress, quality, staffing needs, and risks
  • Work with technical leads on architecture and design
  • Set priorities across emerging threats, offensive engineering, deception, security control validation, and agent-led remediation
  • Turn unclear objectives into focused plans with defined scope and measurable results
  • Coordinate dependencies across teams and shield teams from conflicting priorities
  • Direct engineering investment toward a consistent customer experience
  • Align technical plans with customer and company priorities in partnership with Product, NodeZero engineering, and customer-facing teams
  • Turn NodeZero’s offensive capabilities into proactive, practical defenses using tripwires, deception, security control validation, and blue team agents

Requirements

  • Substantial experience leading SaaS or cloud engineering organizations that deliver complex software products
  • Experience growing teams through managers and technical leaders
  • A record of setting engineering strategy and delivering across teams or product areas in a fast-paced environment
  • Strong technical judgment in cloud software, distributed systems, platform engineering, or similarly complex production systems
  • Ability to contribute credibly to architecture and design discussions
  • Production experience with AI- or agent-enabled products is an advantage
  • Good judgment about AI and agent limitations, verification, and safe operation
  • Ability to turn unclear objectives into sequenced delivery, manage scope and dependencies, and communicate risks and tradeoffs clearly
  • Experience working with Product and cross-functional partners
  • Experience hiring, coaching, and developing strong teams across disciplines
  • Excellent written and spoken communication
  • Sound judgment, ownership, and accountability
  • Bachelor’s or master’s degree in computer science, engineering, or a related field, or equivalent practical experience
  • Familiarity with security engineering, offensive security, vulnerability response, detection, or security control validation is an advantage
  • Experience leading engineering in cybersecurity, penetration testing, security operations, or defensive security products is an advantage
  • Experience building agent platforms or product workflows that connect detection, decision-making, and verified remediation is an advantage
  • Experience building strategic technical partnerships or working with managed security service providers (MSSPs) is an advantage
  • Must be legally authorized to work in the United States
  • Must indicate whether employment visa sponsorship will be required

Benefits

  • Stock options are included in the equity package for all full-time roles
  • Health, vision, and dental coverage for employees and their families
  • Flexible vacation policy
  • Generous parental leave
  • Career development opportunities
  • Inclusive, collaborative workplace culture
  • Remote and hybrid work arrangements vary by role and location
  • Travel of up to 15% may be required

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