Senior Product Marketing Manager, WebApp

About the role

Horizon3 http://Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find, fix, and verify exploitable attack vectors before criminals exploit them. The NodeZero™ 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. The company is a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. The team is committed to helping solve common security problems, including 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, the team consists of learn-it-alls committed to a culture of respect, collaboration, ownership, and results. The Senior Product Marketing Manager will be the entrepreneurial marketing lead for a massive expansion into the application security (AppSec) and Application Security Posture Management (ASPM) space, navigating the market reshaped by AI hype to seize total market ownership.

What you'll do

Take end-to-end ownership of the go-to-market strategy, messaging, and positioning for the NodeZero WebApp Pentesting product line from launch to market dominance.

Architect an aggressive, pipeline-driven product launch framework that transforms product marketing from a corporate support function into a core revenue driver.

Define target personas across Enterprise, Mid-Market, and Commercial segments, building a product narrative that maps directly to clear conversion paths.

Drive the competitive narrative by explicitly dismantling legacy DAST incumbents and exposing fragile, unscalable "agentic AI" wrappers.

Educate the market on why generic AI solutions suffer from exploding token costs, erratic inconsistency, and severe production risks, positioning NodeZero's combination of a deterministic foundation and surgical AI as the only enterprise-grade choice.

Develop proof-first product content, technical teardowns, and competitive battlecards that arm the sales force to win contested deals.

Partner tightly with Product Leadership and Engineering teams, embedding with the builders to transform highly complex offensive security capabilities into high-impact, market-facing narratives.

Translate deep technical breakthroughs, such as the autonomous, production-safe exploitation of complex business-logic flaws like BOLA and IDOR, into clear, hype-free value propositions.

Serve as the vital feedback loop between market realities, buyer pushback, and the product roadmap to ensure market needs drive development.

Own the technical enablement motion for the direct sales force, SDRs, and channel partners including major VARs, resellers, and distribution partners.

Win the hearts and minds of cynical, hype-hating developers, AppSec leads, and red teamers who demand zero false positives, while elevating the message to the CISO and VP level to tell a broader platform and cyber-resilience story.

Build the foundational processes, sales tools, and customer story pipelines required to scale this product line effectively in the marketplace.

Requirements

Bring 5+ years of product marketing experience or 8+ years as a Senior PMM, with meaningful time spent launching and scaling complex technical products in a high-growth SaaS or cybersecurity company.

Demonstrate a Non-Negotiable Drive characterized by high-agency, self-starting execution, thriving in greenfield environments where processes do not exist yet, and relishing the challenge of defining what "great" looks like from scratch.

Possess Deep Technical Chops, evidenced by a background as a former security practitioner, pen tester, technical marketer, or technical PMM who has shipped AppSec, ASPM, or AI-driven security products.

Show mastery of application architecture and the adversarial mindset far deeper than just cybersecurity acronyms to communicate effectively with technical stakeholders.

Exhibit Dual-Altitude Communication, the rare ability to build deep trust with highly skeptical technical practitioners who demand absolute product integrity while effortlessly elevating the message to the CISO and VP level to tell a broader platform and cyber-resilience story.

Maintain a commitment to proof-first content creation, developing technical teardowns and competitive analyses that validate claims and support sales efforts.

Embrace a feedback-loop mindset, actively synthesizing input from buyer pushback and market realities to influence product strategy and execution.

Display ownership of sales enablement, creating tools, playbooks, and training that empower direct sales teams and channel partners to succeed in complex, enterprise deals.

Practical notes

Location: Remote (US,)

Engagement: Full-time

This role requires no travel, and there are no visa or specific hour constraints mentioned in the source material. The position operates within a remote-first environment where outcomes matter more than hours logged. The candidate must be able to start promptly and align with hiring timelines, though no explicit deadline is published. The role is full-time, and success depends on the ability to operate independently in a fast-paced, mission-driven cybersecurity company.