Senior Network System Engineer

Position Overview: Our client, is a well-established managed services organization seeking a Senior Information Technology Consultant to serve as the top-tier escalation resource across complex client environments. This role combines advanced infrastructure engineering, project delivery, technical leadership, and client-facing problem solving, with a strong focus on virtualization, Microsoft 365, Active Directory, identity, backup/DR, and security. What You’ll Do as a Sr Systems Engineer: Serve as the final internal escalation point for complex infrastructure, Microsoft 365, virtualization, and identity issues. Perform root-cause analysis and drive permanent corrective actions for recurring technical issues. Architect, deploy, and support VMware vSphere, Microsoft Hyper-V / Azure Stack HCI, and related compute environments. Manage Microsoft 365 environments including Exchange Online, Teams, Share Point, One Drive, Intune, Defender, Purview, and compliance tools. Design and support Microsoft Entra ID / Azure AD, hybrid identity, MFA, conditional access, AD Connect, and identity governance. Engineer and maintain Active Directory forests, domains, GPOs, DNS, DHCP, certificate services, trusts, and replication. Lead infrastructure migrations, tenant-to-tenant migrations, hardware refreshes, datacenter consolidations, and backup/DR initiatives. Scope and deliver client infrastructure projects from design and SOW through implementation and support handoff. Create architecture diagrams, build documentation, runbooks, and knowledge-base content. Mentor L1/L2 engineers and provide technical peer review, training, and escalation support. Participate in scheduled after-hours maintenance and an on-call rotation as needed.

What We’re Looking For: 5+ years of progressive IT infrastructure engineering experience, including 2+ years in an MSP, consulting, or multi-client environment. Strong VMware vSphere and/or Microsoft Hyper-V / Azure Stack HCI administration experience. Advanced Microsoft 365 administration skills, including Power Shell and familiarity with Microsoft 365 admin centers. Deep Active Directory and Entra ID engineering experience, including hybrid identity and AD Connect. Strong Windows Server, DNS, DHCP, Group Policy, and certificate services knowledge. Hands-on experience with enterprise backup and disaster recovery platforms such as Veeam, Datto, Cove, or Azure Site Recovery. Solid networking fundamentals including VLANs, routing, firewalls, VPNs, and SD-WAN concepts. Strong Power Shell scripting skills for automation and bulk administration. Excellent communication skills and the ability to explain technical concepts to both technical and non-technical stakeholders