Engineering Manager, Firewall Defense

About this role

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 We're looking for an Engineering Manager to lead our Web Application Firewall validation, effectiveness, and tuning team. NodeZero proves which attacks work in a customer's production environment. This team closes the loop — turning what we learn from offense into defensive action. You will lead a team of diverse skill sets as they work at different cadences and measure progress differently.

Building an environment where those differences compound rather than collide is a central part of the job. You will own hiring, growth, and how the team works together as it scales. You will partner closely with a Staff-level Technical Lead who owns architecture, with Product on sequencing, and with Engineering leaders across the organization. This is a highly technical leadership role for someone who has moved beyond hands-on coding but still has the depth to evaluate a design, challenge an estimate, and know when a team is stuck.

In this role, you will: - Lead, mentor, and grow a team of backend engineers and security practitioners with deep firewall and defensive expertise, with clear career paths for each. - Help the team turn firewall workflows into buildable requirements and usable product capabilities. - Partner with a Staff-level Technical Lead who owns architecture, and with Product on roadmap and sequencing. - Translate ambiguous goals into sequenced, deliverable work, and manage scope actively rather than absorbing it.