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Summary The Senior Infrastructure Engineer is responsible for the design, provisioning, configuration, operation, and maintenance of enterprise infrastructure across on-premises, cloud, and SaaS environments. This role ensures high availability, performance, and security of systems while supporting business-critical operations. Responsibilities Manage day-to-day operations of IT infrastructure, including on-prem servers, cloud platforms, and SaaS systems, ensuring optimal performance, availability, and reliability Monitor system health across hybrid environments using enterprise monitoring and observability tools; proactively identify and resolve issues before business impact Respond to alerts related to hardware, software, cloud services, and SaaS platforms that are experiencing failures, ensuring timely resolution within SLAs Troubleshoot and resolve complex technical issues reported by users, applications, and monitoring systems across on-prem, cloud, and SaaS environments Install, configure, and maintain physical and virtual servers, as well as cloud-based infrastructure and services, in accordance with standards and operational requirements Administer and support SaaS platforms (e.g., Microsoft 365 and other business applications), including configuration, access management, and issue resolution Perform ongoing security monitoring across infrastructure, cloud, and SaaS platforms, including identity systems and access controls Perform and validate backup and disaster recovery operations across on-prem and cloud environments, ensuring data integrity and adherence to retention policies Recommend and implement improvements to systems, network configurations, and hybrid architecture, including cloud adoption and SaaS optimization Assist the Service Desk team on escalated tickets pertaining to servers, network, storage, cloud services, SaaS platforms, and remote sites Document processes and procedures for routine operations and newly developed workflows across hybrid environments Manage IT infrastructure and cloud projects end-to-end, including planning, vendor coordination, scheduling, implementation, and testing Participate in patch management, capacity planning, and lifecycle management of infrastructure and cloud resources Perform other job duties as required by Management Requirements Bachelor’s Degree in Information Systems, Engineering, or related field (or equivalent experience) 8 -10 years of experience working in infrastructure engineering or a similar role Experience with hybrid environments integrating on-prem and cloud infrastructure Strong experience with virtualization technologies (VMware vSphere, Omnissa Horizon, Hyper-V, Azure, AVD) Strong understanding of enterprise storage solutions (SAN, Dell Unity/PowerScale, Isilon/PowerStore) Strong understanding of cloud platforms such as AWS access portal, AWS IAM Identity Center, AWS Control Tower Strong understanding of Microsoft Active Directory, Windows Server, DNS, DHCP Experience with Microsoft Exchange and Microsoft 365 (Office 365) environments Experience administering SaaS platforms and enterprise cloud applications Experience with identity and access management solutions (e.g., Active Directory, Azure AD / Entra ID, SSO, MFA) Working knowledge of switching and routing using Cisco CLI Design, implement, and support enterprise cloud and hybrid infrastructure, including networking, security, connectivity, and platform services across on-premises and cloud environments Experience with backup solutions such as Veeam, Cohesity Working knowledge of Linux, Unix, and/or macOS systems Experience with endpoint and device management tools (e.g., Intune, MDM solutions) is a plus Benefits The starting pay range for this position is $112,000 - $120,000 per year however, the base pay offered may vary depending on the level of the position, skills, experience, job-related knowledge, and location. In addition to a comprehensiv