Senior Engineering Manager (MSSP)

Join Horizon3 as a Senior Engineering Manager (MSSP) and lead the growth and development of our MSP/MSSP team. You will drive the platform capabilities that make NodeZero scalable and operationally excellent for Managed Service Providers and Managed Security Service Providers. Your responsibilities will include building and mentoring a team of engineers, driving the platform strategy, establishing and evolving the architecture, and partnering with various teams to align the roadmap with partner needs. You will also be responsible for recruiting and onboarding talent, mentoring and developing your team, and leading horizontally with peer management and senior leaders. Enjoy a flexible work environment, growth opportunities, and an inclusive and diverse team culture.

• Diriger et développer l'équipe MSP/MSSP, en veillant à ce qu'elle atteigne ses objectifs et ses performances.
• Conduire la stratégie de la plateforme pour les cas d'utilisation MSP et MSSP, y compris la multi-location, les relations parent/enfant, et l'administration des partenaires.
• Établir et faire évoluer l'architecture pour les hiérarchies de comptes, l'administration déléguée, l'isolement des locataires, et les flux d'autorisation et de licence spécifiques aux partenaires.

• Strong working knowledge of at least one major cloud provider (AWS, GCP, or Azure). Experience with identity and access management, RBAC, authorization models, and enterprise account structures. AWS preferred
• Demonstrated experience leading engineering teams building and operating multi-tenant SaaS platforms at scale
• Proven track record of taking complex platform capabilities from design through production and at-scale operation
• Experience with partner or channel software models — MSP, MSSP, OEM, white-label, reseller, or co-branded platforms
• Strong technical background in multi-tenancy, account hierarchies, tenant isolation, delegated administration, and parent/sub-client models
• Comfortable with modern backend languages such as Python or Go; able to engage meaningfully in technical discussions and code reviews with engineers
• Experience driving architecture decisions through structured design reviews, RFCs, or similar frameworks — particularly for multi-tenant or partner-facing systems
• Able to write clear, durable process documentation that engineering teams can adopt
• Nice to Haves: background in cybersecurity or security platforms; experience with third-party risk management or compliance-adjacent capabilities; familiarity with licensing, entitlements, subscription management, or billing integrations
• Proven ability to hire, develop, and retain high-performing engineers in remote or distributed environments
• Strong communication skills across technical and non-technical audiences — able to partner effectively with Product, Partnerships, Customer Success, Finance, and Engineering leadership
• Demonstrated ability to balance strategic roadmap delivery against a competing stream of partner support and operational needs
• Proven ability to build, scale, and retain high-performing engineering teams in remote or distributed environments