Senior Windows Systems Engineer – Hybrid AD & M365

STN Incorporated; Pleasanton (CA); Hybrid; USD 175,000 - 195,000; Full time

Benefits offered by this job

Health Coverage – Medical, Dental &amp

401(k) Plan

Unlimited PTO

Observed Holidays Paid

Cell Phone Allowance

Collaborative culture

Job summary

STN Incorporated is hiring a Windows Systems Engineer (MTS) to maintain Windows Server, AD, and M365 environments for managed-service customers. The role emphasizes security, patching, and automation, with hybrid work in Pleasanton, CA.

You’ll collaborate with the Sr Manager – Service Desk, NOC/SOC, and multi-customer teams. The ideal candidate has 5+ years in Windows Server/AD, strong PowerShell skills, and experience with PCI/HIPAA environments.

Qualifications

• 5+ years hands-on with Windows Server and Active Directory, DNS, DHCP, and GP administration.
• PowerShell proficiency for automation and scripting; equivalent depth with Python/Ansible/Terraform considered.
• Experience with PCI- and HIPAA-regulated environments and change control.

Responsibilities

• Administer Windows Servers across multiple customer environments and services.
• Execute AD work including domain controller upgrades from documented plans.
• Write and maintain PowerShell scripts for provisioning and automation.
• Administer Microsoft 365 and Entra ID; manage Exchange Online and mail flow.
• Maintain patch cadence and endpoint protection; respond to vuln findings.
• Support MFA and Conditional Access rollouts; manage identity hygiene.
• Monitor backups and run restore tests; ensure RPO/RTO adherence.
• Manage virtualization with VMware vSphere/Hyper-V and cloud IaaS.
• Act as L3 escalation for service desk and drive root-cause analysis.

Skills

Windows Server

Active Directory

DNS

DHCP

Group Policy

PowerShell

MFA / Conditional Access

Microsoft 365

Entra ID

VMware vSphere / Hyper-V

Education

Bachelor's degree in IT / CS

Tools

Cohesity

Veeam

Intune

SCCM/MECM

NinjaOne

Datto

Job description

STN Incorporated is hiring a Windows Systems Engineer (MTS) to maintain Windows Server, AD, and M365 environments for managed-service customers. The role emphasizes security, patching, and automation, with hybrid work in Pleasanton, CA.

You’ll collaborate with the Sr Manager – Service Desk, NOC/SOC, and multi-customer teams. The ideal candidate has 5+ years in Windows Server/AD, strong PowerShell skills, and experience with PCI/HIPAA environments.