Mission-Critical Infrastructure Engineer (Windows/Linux)

PMAT Inc.; Norfolk (VA); On-site; USD 120,000 - 160,000; Full time

Job summary

PMAT Inc. is seeking an experienced Systems Infrastructure Engineer to support installation, configuration, and sustainment of mission-critical computing infrastructure in Navy operational environments.

You will work with engineers, cybersecurity, and stakeholders to ensure fielded systems are configured securely and maintained throughout their lifecycle. The role emphasizes hands-on administration of Windows and Linux servers, virtualization, enterprise services, IAM, and automation scripting

Qualifications

• Strong experience in systems engineering, systems administration, infrastructure engineering, or related disciplines.
• Hands-on experience administering, configuring, and troubleshooting Windows and/or Linux server environments.
• Experience with enterprise infrastructure services including Active Directory, DNS, DHCP, IAM, and authentication technologies.
• Experience with virtualization platforms and supporting infrastructure technologies.
• Experience implementing patch management, software updates, backup and recovery procedures, and routine maintenance.
• Experience troubleshooting across operating systems, networks, virtualization, and services.
• Experience developing or maintaining automation scripts using PowerShell, Bash, Python or similar tools.
• Understanding of cybersecurity principles, system hardening, access controls, and change management.

Responsibilities

• Plan, install, configure, integrate, test, deploy, and sustain hardware, software, and computing infrastructure across environments.
• Administer and troubleshoot Windows and Linux servers, virtualization platforms, and supporting services to ensure availability and readiness.
• Manage enterprise network and identity services including AD, DNS, DHCP, and access management.
• Support fielding activities by validating configurations, connectivity, and deployment readiness.
• Implement and maintain patching, backups, and recovery procedures for system performance and security.
• Develop automation scripts to streamline administration and maintenance tasks.
• Collaborate with cybersecurity to implement system hardening and compliance controls.
• Create and maintain technical docs, installation procedures, and troubleshooting guides.

Skills

Windows admin

Linux admin

AD/DNS/DHCP

Scripting PowerShell

Scripting Bash

Scripting Python

VMware vSphere

Security hardening

Documentation

Collaboration

Education

Bachelor’s Degree or Equivalent Experience

Tools

VMware ESXi

Terraform

Ansible

Azure

AWS

Job description

PMAT Inc. is seeking an experienced Systems Infrastructure Engineer to support installation, configuration, and sustainment of mission-critical computing infrastructure in Navy operational environments.

You will work with engineers, cybersecurity, and stakeholders to ensure fielded systems are configured securely and maintained throughout their lifecycle. The role emphasizes hands-on administration of Windows and Linux servers, virtualization, enterprise services, IAM, and automation scripting