Senior Engineering Manager (Cloud Platform)

Join Horizon3 as a Senior Engineering Manager (Cloud Platform) and lead our infrastructure platform team. You will be responsible for building capabilities for product development teams, establishing a Site Reliability function, and driving operational excellence. You will also manage a growing team of infrastructure engineers and ensure a strong bench of technical and leadership talent. Enjoy a flexible work environment, growth opportunities, and an inclusive and diverse team culture.

• Lead the infrastructure platform team to build capabilities for product development teams, providing self-service environments and infrastructure.
• Establish a Site Reliability function to define and drive investments in operational excellence, ensuring product and service offerings meet customer expectations.
• Directly manage a growing team of infrastructure engineers, focusing on recruiting, mentoring, and developing high-performing engineers and engineering managers.
• Solid understanding of security best practices including zero trust architecture, secrets management, identity and access management, and software supply chain security
• Proven ability to hire, develop, and retain high-performing engineers and engineering managers in remote or distributed environments
• Proven track record of driving engineering rigor through coaching, design reviews, and feedback. Track record of growing engineers from strong individual contributors to system-level thinkers
• Experience managing production Kubernetes environments at scale
• Strong communication skills across technical and non-technical audiences
• Demonstrated experience leading teams operating SaaS service infrastructure
• Proven skills in managing a backlog of strategic roadmap initiatives and a competing stream of developer support and operational requests against capacity constraints
• Expert in leading infrastructure teams to translate business and product requirements into technical requirements and engineering deliverables. Demonstrated ability to drive a design-before-build engineering culture and capture operational lifecycle and impact on dependent teams into infrastructure architecture decisions
• Experience building and operating self-service infrastructure platforms that enable application development teams, while balancing self-service and developer productivity with maintainability and security
• Experience in design practices like architecture decision records or RFCs in the infrastructure or platform engineering context
• Strong command of Infrastructure as Code, including Terraform; experience with Crossplane and GitOps patterns strongly preferred
• Experience leading or building SRE functions, including incident management processes, on-call programs, SLO/SLA definition, and operational runbooks
• Deep hands on experience with observability: application performance management, logs and traces, and golden signals and service-specific metrics
• Deep hands-on experience deploying and operating production infrastructure on public cloud platforms (AWS strongly preferred; Azure and GCP familiarity a plus)
• Proven ability to to build, scale, and retain high performing engineering teams in remote or distributed environments