Server Administrator (Principal) / System Administrator (Principal)

About the Role

We are seeking a Server Administrator (Principal) with strong experience designing and implementing enterprise infrastructure across on-premises and hybrid cloud environments.

This is a hands-on technical SME role focused on infrastructure architecture, cloud modernization, and enterprise migrations. The ideal candidate has led end-to-end implementations and serves as a senior technical escalation point (L3).

Key Responsibilities

• Design, deploy, and support enterprise hybrid infrastructure.

• Administer Microsoft Exchange, Microsoft 365, Active Directory, Entra ID, IAM, DNS, DHCP, and Windows Server.

• Design and implement AWS and Azure hybrid cloud solutions, including networking, security, governance, and Landing Zones.

• Manage VMware ESXi and Hyper-V environments.

• Lead on-premises to cloud migration and infrastructure modernization projects.

• Serve as the L3 technical escalation point for complex infrastructure issues.

• Produce architecture, design, and implementation documentation.
  

Required Qualifications

• 7+ years of Enterprise Wintel / Infrastructure Engineering experience.

• 5+ years of Hybrid Cloud or Cloud Infrastructure Engineering.

• Proven experience designing and deploying enterprise infrastructure solutions.

• Strong hands-on experience with:

• Microsoft Exchange & Microsoft 365

• Active Directory & Entra ID (Azure AD)

• Windows Server, DNS, DHCP, Group Policy

• VMware ESXi & Hyper-V

• AWS & Azure (IaaS, PaaS, Networking, IAM, Governance, Landing Zones)
  

Must have experience:

• Designing and implementing enterprise infrastructure solutions.

• Leading on-premises to cloud migration projects.

• Acting as an L3 technical escalation point.

• Creating architecture and technical design documentation.

• Supporting large enterprise or global environments.
  

Nice to have experience:

• Veeam Backup & Replication

• Datadog, SolarWinds, Azure Monitor, or CloudWatch

• Azure Solutions Architect, AWS Solutions Architect, Microsoft 365, ITIL, or Security certifications

Ideal Candidate

We're looking for someone who has:

• Designed and implemented enterprise infrastructure—not just supported it.

• Strong Microsoft Exchange and Microsoft 365 administration experience.

• Hands-on deployment of DNS, DHCP, Active Directory, and Entra ID.

• Experience architecting AWS and Azure hybrid cloud environments.

• Independently led infrastructure projects and major technical escalations.