Senior IT Infrastructure Engineer (Hybrid, On-Call)

WIN; Greenwich (CT); On-site; USD 100,000 - 140,000; Full time

Job summary

WIN is seeking a Systems Engineer to work with the Manager of IT Infrastructure on day-to-day operations of all infrastructure components. The role requires after-hours coverage for maintenance, upgrades, and incidents, with occasional weekend work.

Responsibilities include maintaining VMware, Windows Server, AD, DNS/DHCP, Azure/Entra, and VDI environments while ensuring HIPAA-compliant encryption and security across endpoints. collaboration with IT teams is essential.

Qualifications

• Bachelor’s Degree preferred, preferably computer science or related field.
• 5 years of relevant work experience.
• 5 years of expertise in deploying and maintaining Microsoft Windows Server, SQL server.
• Working knowledge of Active Directory, DNS, DHCP, DFS, and group policy.
• Understanding of routing and switching, including high availability and redundancy features.

Responsibilities

• Maintain and support all IT infrastructure components including VMware, servers, storage, switches, and firewalls.
• Administer Azure/Entra, Active Directory, DHCP, DNS, and Group Policy.
• Manage Microsoft 365 and Intune; support HIPAA compliance and encryption.
• Oversee VDI environment maintenance and deployment.
• Serve as escalation point for IT Help Desk issues and ensure disaster recovery readiness.

Skills

VMware 8.0 Enterprise

Active Directory administration

DNS

DHCP

Networking

Microsoft Windows Server

Encryption

Education

Bachelor’s Degree in Computer Science or related field

Tools

Palo Alto firewalls

Velocloud SD-WAN

Azure / Entra

Mimecast email appliance

Omnissa Horizon (VDI)

Job description

WIN is seeking a Systems Engineer to work with the Manager of IT Infrastructure on day-to-day operations of all infrastructure components. The role requires after-hours coverage for maintenance, upgrades, and incidents, with occasional weekend work.

Responsibilities include maintaining VMware, Windows Server, AD, DNS/DHCP, Azure/Entra, and VDI environments while ensuring HIPAA-compliant encryption and security across endpoints. collaboration with IT teams is essential.