Senior Product Manager, Platform

Who we are: Horizon3.ai 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. 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 IT Ops/SecOps teams, consulting pentesters, and MSSPs and MSPs. We are a fusion of former U.S. Special Operations cyber operators, startup engineers & operators, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools and 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 are seeking a Senior Product Manager for Platform to lead our platform product portfolio that makes NodeZero enterprise-ready, extensible, and reliable at scale. You will work closely with the Sr. Director of Product and senior engineering leadership to define and execute the platform strategy that underpins every experience in our product. In this role, you will be responsible for enterprise experience, integrations/APIs/MCP server and agentic workflows, performance and reliability, and MSP/MSSP functionality—while also owning a hands-on product area yourself, with particular emphasis on platform performance, reliability, and operational excellence. You will be responsible for ensuring our platform is scalable, observable, secure, and easy to integrate with the broader security and IT ecosystem. You will define and drive the platform capabilities that enable feature teams, partners, and customers to build, automate, and operate on top of NodeZero with confidence. You are a self-starter who thrives in a fast-paced environment, can move fluidly between strategic thinking and tactical execution, and is comfortable making decisions that impact multiple product lines. You will partner cross-functionally with Engineering, SRE, Customer Success, Marketing, Support, Sales, and other Product leaders to deliver platform functionality that improves system stability, accelerates development, and unlocks enterprise and partner growth. KEY RESPONSIBILITIES - Platform Product Strategy and Vision: Own the end-to-end product strategy for the NodeZero platform, with a focus on scalability, reliability, security, extensibility, and enterprise readiness. Ensure platform investments are tightly aligned with company objectives, revenue goals, and customer outcomes. - Directly own the product roadmap for platform performance, reliability, and operational excellence. Define SLAs, SLOs, and error budgets; partner with Engineering and SRE to improve availability, latency, and overall system health. - Enterprise Experience and Governance: Oversee the platform capabilities that enable enterprise customers to securely adopt and scale NodeZero, including RBAC, SSO/SCIM, entitlements and licensing, auditability, administrative workflows, and multi-tenancy. - Roadmap and Portfolio Management: Develop and maintain a transparent, outcome-driven roadmap across your portfolio. Balance short-term reliability with long-term strategic bets. - Cross-Functional Alignment and Delivery: Partner closely with Engineering, SRE, Marketing, Sales, Support, and Customer Success to define requirements, plan releases, and drive execution. - Metrics, Insights, and Experimentation: Define and track success metrics across platform reliability, performance, integration adoption, and enterprise feature utilization. - Voice of Customers and Partners: Engage directly with strategic customers and partners to understand needs, validate designs, and gather structured feedback. WHAT YOU'LL BRING - 5+ years of Product Management experience in B2B SaaS, with significant time spent on platform, infrastructure, or deeply technical products - Deep understanding of SaaS architectures, distributed systems, cloud infrastructure, and multi-tenant platforms - Proven experience owning or materially influencing reliability and performance domains, including SLAs, SLOs, SLIs, error budgets, and incident management practices - Excellent cross-functional leadership skills; able to partner effectively with Engineering, SRE, Marketing, Sales, Support, and Customer Success, and influence senior stakeholders - Data-driven decision making, with experience defining product and operational metrics and using insights to guide