Senior Principal Product Manager

Role Summary This is a senior individual-contributor product leadership role owning three of Horizon’s four co-components: Support, Manage, and Store. You will define product strategy and requirements for the administrator and self-service experience across DDN’s two storage engines (Infinia and EXAScaler), and partner closely with engineering leadership to sequence delivery against Horizon’s charter-level priorities. This role does not own Horizon Control (the Rafay-OEM orchestration product) though it might play a role in that. Close coordination with that side of the business is expected, particularly where Support/Manage/Store roadmap decisions have pricing or packaging implications. Key Responsibilities Own Horizon Support and Horizon Manage requirements — maintain the cross-engine provider matrix and the Manage & Support PRD as Infinia and EXAScaler capabilities evolve, translating engine-level maturity gaps into clear, sequenced product requirements. Drive Horizon Support — currently Horizon’s near-term #1 platform priority — including the proactive support capability: heuristics that flag failure precursors (e.g., a failing drive) before the customer notices, and the internal/customer-facing dual-surface model this depends on. Own Horizon Store’s self-service experience — sequence delivery against each engine’s API maturity, in particular the EXAScaler northbound API dependency. Sequence work with engine PMs (Infinia, EXAScaler) and engineering leadership per Horizon’s ordinal build priorities — Infinia before EXAScaler within each component, minimal-then-full for EXAScaler. Define the proactive-support model — SLAs, escalation tiers, and the boundary between automated detection and human escalation — in partnership with DDN’s Support organization. Own the observability requirements that feed both Manage and Support as the shared foundation, keeping pace with each engine’s telemetry maturity. Represent Support/Manage/Store in business reviews (MBR/QBR), translating provider-matrix gaps and delivery risk into clear, decision-ready call-outs for leadership. What's Explicitly Out of Scope Horizon Control — the Rafay-OEM orchestration product, its roadmap, and pricing/commercial negotiation with Rafay. EXAScaler/Infinia engine-level roadmaps — owned by the EXAScaler/Infinia PM organizations. Close partnership expected, since Support and Manage span both engines. Qualifications 10+ years of product management experience, including enterprise infrastructure, storage, or cloud-platform products. A track record owning multi-product or multi-engine platform strategy, translating a durable technical strategy into sequenced, engineering-ready requirements. Comfort operating at both strategic and detailed altitude — informing charter-level tradeoffs one day, writing provider-matrix and PRD-level requirements the next. Experience with observability- or telemetry-driven products is a strong plus, given how central this is to Horizon Support. Experience partnering with globally distributed engineering organizations. Demonstrated experience defining support models and SLAs for enterprise infrastructure products. What Success Looks Like in the First 90 Days Fully onboarded on the Horizon charter, the Manage & Support PRD, and the current Infinia/EXAScaler provider matrix. Established working relationships with the Infinia and EXAScaler PM teams and Horizon engineering leadership. Identified and begun closing the highest-priority gaps in the Support/Manage/Store provider matrix.