Systems Admin/Virtual Admin

Building for tomorrow. DIRTT is a global leader in industrialized construction. Our system of physical products and digital tools empowers organizations—alongside construction and design leaders to build high-performing, adaptable interior environments. Operating across workplace, healthcare, education, and public sector markets, DIRTT provides total design freedom and greater certainty in cost, schedule, and outcomes. The Senior Systems Administrator owns DIRTT's core infrastructure platforms: compute (VMware, Hyper‑V, and AWS), storage (NetApp ONTAP), and identity and access management (Active Directory and Microsoft Entra ID). You are the technical authority and escalation point for these platforms across corporate and manufacturing environments, responsible for their design, reliability, security, and lifecycle. The role also carries working network capability. You provide secondary coverage for the network function, support infrastructure projects that span systems and network, and troubleshoot issues end to end across the stack. You will mentor junior staff, own documentation and change records for your platforms, and work closely with cybersecurity, application, and vendor partners. Own the design, build, and operation of on‑premises virtualization platforms (VMware vSphere and Microsoft Hyper‑V), including host configuration, clustering, cluster networking, and live migration. Build and operate AWS compute (EC2, AMIs, instance sizing) within DIRTT's AWS landing zone. Manage the underlying server hardware (HP Synergy frames and compute modules), firmware, and boot-from-SAN configuration. Lead workload migrations between platforms, including on‑premises to AWS, and retirement of legacy infrastructure. Manage iSCSI storage connectivity, multipathing, and storage networking for hypervisor hosts. Own snapshot‑based backup and recovery for NetApp data, including snapshot schedules, retention policies, and regular restore testing. Manage storage capacity, performance, and ONTAP upgrades. Own on‑premises Active Directory: domain controllers, DNS, DHCP, sites and services, Group Policy, and domain/forest health. Own Microsoft Entra ID: hybrid identity sync, conditional access, MFA, app registrations, and enterprise app SSO. Enforce least privilege: privileged account management, role‑based access, access reviews, and service account governance. Network (secondary coverage) Provide backup coverage for the network function during absences and after‑hours escalations. Support firewall, switching, wireless, VPN, and load balancer operations (including Citrix NetScaler) under direction of the network lead. Troubleshoot connectivity issues across systems and network layers, including VLANs, routing, DNS, and certificates. Support hybrid and cloud networking for infrastructure projects (AWS, Azure). participate in the on‑call rotation. Plan and execute patching, upgrades, and maintenance windows for owned platforms. Remediate vulnerabilities on owned platforms in partnership with cybersecurity. Maintain documentation, diagrams, runbooks, and configuration records for owned platforms. Manage vendor and support relationships for owned platforms; provide input on hardware and software selection. Mentor and train junior systems administrators and helpdesk staff. Bachelor’s degree or post‑secondary diploma in Computer Science, Information Technology, or a related field; 10+ years of progressive systems administration experience in an enterprise Windows environment, including 3+ years in a senior or lead systems administration role. ~ Hands‑on experience designing, implementing, and supporting enterprise compute environments using VMware vSphere, Microsoft Hyper‑V, or AWS; Advanced knowledge of Microsoft Active Directory, Group Policy, DNS, and DHCP. ~ Strong experience with Microsoft Entra ID, hybrid identity, Conditional Access, and SSO/federation technologies such as ADFS, SAML, and OIDC. ~ Working knowledge of enterprise networking, including TCP/IP, VLANs, routing, firewalls, VPNs, and load balancing. ~ Experience working within IT service management processes, including change, incident, and problem management. ~ Experience planning and executing system patching, upgrades, maintenance windows, and vulnerability remediation. ~ Strong troubleshooting and problem‑solving skills, with the ability to serve as a Tier 3 escalation point for complex infrastructure issues. ~ Excellent written and verbal communication skills, including the ability to create clear technical documentation and communicate effectively with non‑technical stakeholders. ~ Willingness and ability to participate in an after‑hours on‑call rotation and scheduled maintenance activities. ~ Demonstrated ability to mentor junior systems administrators and helpdesk staff and collaborate effectively across IT teams. Experience with Veeam Backup for Microsoft 365 is an asset. HPE Synergy is an