Senior Systems Engineer: Enterprise Windows & VMware

Phaxis; New York (NY); On-site; USD 120,000 - 180,000; Full time

Job summary

Phaxis is seeking an experienced Senior Systems Engineer to support and maintain a large enterprise infrastructure. The role focuses on Windows Server, Active Directory, VMware, Exchange, SCCM/MECM, and Citrix to ensure high availability and performance.

You will develop PowerShell automation, perform server builds and lifecycle management, and collaborate with network, security, and service desk teams on major projects and disaster recovery initiatives.

Qualifications

• Minimum 7+ years of enterprise systems engineering or infrastructure experience.
• Strong Windows Server and Active Directory troubleshooting and design skills.
• Hands-on experience with VMware vSphere/ESXi and modern virtualization management.
• Experience with Exchange, SCCM/MECM, and Citrix in large-scale environments.
• Advanced PowerShell scripting capabilities and automation
• Solid knowledge of enterprise networking, security, backup, and DR concepts.

Responsibilities

• Administer and support enterprise Windows Server environments.
• Manage Active Directory, Group Policy, DNS, DHCP, trusts, and replication.
• Oversee VMware vSphere/ESXi, vCenter, HA, DRS, virtual networking, and storage.
• Support Microsoft Exchange and enterprise mail infrastructures.
• Administer SCCM/MECM for deployment, patching, OS deployment, and endpoint mgmt.
• Support and troubleshoot Citrix Virtual Apps and Desktops.
• Develop PowerShell scripts to automate repetitive tasks.
• Perform server builds, patches, hardening, and lifecycle management.
• Troubleshoot complex infra issues and provide escalation-level support.
• Participate in migrations, upgrades, DR initiatives, and projects.
• Collaborate with networking, security, app, and service desk teams.
• Maintain technical documentation and participate in change, incident, and problem processes.

Skills

Windows Server

Active Directory

VMware vSphere/ESXi

Exchange

SCCM/MECM

Citrix

PowerShell

Networking & Security

Disaster Recovery

Documentation & Troubleshooting

Tools

Azure

Intune

Entra ID

Microsoft 365

Veeam

Job description

Phaxis is seeking an experienced Senior Systems Engineer to support and maintain a large enterprise infrastructure. The role focuses on Windows Server, Active Directory, VMware, Exchange, SCCM/MECM, and Citrix to ensure high availability and performance.

You will develop PowerShell automation, perform server builds and lifecycle management, and collaborate with network, security, and service desk teams on major projects and disaster recovery initiatives.