# Engineering Manager, Firewall Defense at Horizon3 AI

Horizon3 AI is hiring an Engineering Manager, Firewall Defense. It pays $225k-$265k a year and Level rates it Little AI ●○○○; you can [apply on Horizon3 AI](https://jobsbylevel.com/go/b5723f08-d493-40b8-a9c9-9b19d38b9112?utm_medium=ai-agent).

AI Level 1, AI centrality 18 out of 100. Remote (US, Remote).

## Details

- Company: [Horizon3 AI](https://jobsbylevel.com/companies/horizon3-ai)
- AI level: AI Level 1 (score 18 out of 100)
- Location: Remote (US, Remote)
- Salary: $225k-$265k
- Posted: October 29, 2026
- Apply: https://jobsbylevel.com/go/b5723f08-d493-40b8-a9c9-9b19d38b9112?utm_medium=ai-agent
- Free CV review for this job: https://jobsbylevel.com/cv-review?job=engineering-manager-firewall-defense-at-horizon3-ai-b9c821

## Description

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 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. Stay technically engaged enough to challenge assumptions and unblock the team, while creating outcomes through engineers rather than serving as the primary implementer. Establish the operational discipline this work requires: design review, release practices, on-call, and incident response. What You'll Bring Familiarity with firewall or network security sufficient to partner effectively with domain experts. Proven experience leading highly technical backend or platform engineering teams — ideally within a SaaS, cybersecurity, or cloud-scale environment. Track record delivering products under a fixed date, where requirements were ambiguous and scope had to be actively managed rather than assumed. Strong dependency and stakeholder management across many engineering teams, with a habit of surfacing risks and tradeoffs early and in writing. Understanding of security and reliability best practices in multi-tenant SaaS. Experience partnering with a staff-level technical lead, with a clear sense of where management ends and technical ownership begins. Ability to hold a quality or safety bar under schedule pressure, and to escalate scope tradeoffs rather than absorb them. Preferred Working familiarity with enterprise firewall platforms (i.e Palo Alto Networks, Fortinet, Cisco, or Check Point) and the ability to engage domain experts and evaluate security,

The description is cut here. Read the full offer: https://jobsbylevel.com/jobs/engineering-manager-firewall-defense-at-horizon3-ai-b9c821

Source: https://jobsbylevel.com/jobs/engineering-manager-firewall-defense-at-horizon3-ai-b9c821

## Cite this page

Level. https://jobsbylevel.com/jobs/engineering-manager-firewall-defense-at-horizon3-ai-b9c821.

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