Senior Director, Engineering – Proactive Offense

Get to Know Us Horizon3 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.   WHAT YOU’LL DO As Senior Director of Engineering for Proactive Offense, you’ll set the engineering direction and build the organization that turns offensive security research and capabilities into dependable, customer-facing NodeZero products. You’ll lead through engineering managers, technical leaders, and senior individual contributors across multiple teams, balancing technical judgment with organization-wide strategy and execution. You’ll shape how NodeZero identifies, exploits, and validates vulnerabilities across complex environments, and guide offensive capabilities from research and proof of concept through scalable production delivery. You’ll partner closely with Product and leaders across Engineering, including Precision Defense and Platform, to align the Proactive Offense portfolio with customer needs and company priorities. This is a highly visible leadership role central to Horizon3 http://Horizon3.ai’s mission of delivering continuous, autonomous security testing at scale. KEY RESPONSIBILITIES ORGANIZATION LEADERSHIP & STRATEGY - Lead and scale the Proactive Offense engineering organization across teams responsible for offensive capabilities, exploit development, and attack automation within NodeZero. - Translate the organization’s charter into a clear technical strategy, operating model, and sequenced roadmap, balancing customer value, product priorities, and durable engineering foundations. - Build an effective leadership structure as the organization grows; hire, coach, and develop managers, technical leaders, and senior individual contributors with clear ownership and accountability. - Establish goals and operating mechanisms that make progress, quality, capacity, dependencies, and risks visible across teams. - Partner with technical leaders on architecture and design, bringing sufficient depth to evaluate tradeoffs, challenge assumptions, and ensure systems can evolve as the product and portfolio expand. PRODUCT & PORTFOLIO EXECUTION - Partner with Product, Precision Defense, Platform, and customer-facing teams to prioritize work across offensive research, vulnerability exploitation, attack content, and automation. - Shape a coherent portfolio roadmap and translate ambiguous opportunities into focused plans with explicit scope, measurable outcomes, and well-managed cross-team dependencies. - Drive capabilities from proof of concept to production, ensuring research and innovation become reliable, scalable, supportable product features. - Ensure engineering investment advances customer outcomes while balancing