Senior Systems Administrator

Overview

We are seeking a skilled and self-driven Systems Administrator with strong expertise in cloud services, Microsoft enterprise technologies, virtualization, and modern security platforms The ideal candidate will have hands-on experience with AWS, Microsoft 365/Intune, VMware, and Zscaler, and will play a key role in maintaining secure, scalable, and well-documented systems. This position is best suited to someone who enjoys solving technical challenges, improving infrastructure through automation and best practices, and operating with autonomy in a dynamic environment.

Responsibilities

Core Responsibilities

Cloud & Enterprise Services

Manage AWS environments and implement infrastructure-as-code using Terraform

Administer Microsoft 365 and Exchange Online

Configure and manage Intune for device/application security Network Security & Access

Maintain and optimize Zscaler (ZIA, ZPA, ZDX)

Implement security policies, access controls, and monitoring standards Infrastructure & Virtualization

Maintain VMware vSphere 8 (vCenter, ESXi, Horizon View)

Administer Windows Server roles (AD, DNS, DHCP, IIS, BitLocker) Skills Required

Qualifications

Required

4+ years' experience in systems administration or similar role

2+ Experience with AWS, Microsoft 365/Exchange, VMware, Zscaler

Strong troubleshooting and problem-solving skills

Ability to operate independently and collaboratively Preferred

?Certifications in one or more: AWS, Microsoft, VMware, or Zscaler

?Scripting/automation background

?Familiarity with compliance and regulatory frameworks relevant to IT (e.g., CMMC, NIST 800-171 or C-SCRM). Additional Value-add Skills

PowerShell/Python automation skills

Enterprise hardware management (PowerEdge, SANs, Unifi)

Understanding of CMMC, NIST, or C-SCRM frameworks

Experience tuning Defender, Horizon View, or IIS

Strong documentation + communication capability

Salary Range: $65,000 - $85,000/Year, DOE

Candidates who meet 70-80% of the core requirements are encouraged to apply - we value growth, curiosity, and capability over perfection.

Education

Bachelors degree preferred, preferably in management information systems, math or engineering. Additional degrees or certifications may subsitute for years of experience.