ProcurementManager

GET TO KNOW US 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 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 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 strategic and detail-oriented Procurement Manager to lead and mature our procurement operations as we continue scaling toward public-company readiness. This role sits within the Accounting organization and serves as a key bridge between technical stakeholders, operational teams, and Finance. The ideal candidate will own and evolve our Procure-to-Pay (P2P) ecosystem, partnering cross-functionally with Engineering, Sales, Marketing, Security, Legal, FP&A, IT, and business leaders to ensure procurement requests are complete, business-justified, commercially sound, compliant, and operationally efficient from intake through payment resolution. This role combines strategic sourcing, operational execution, process ownership, vendor coordina