Principal Infrastructure Engineer
Liberty Personnel Services, Inc.
Principal Infrastructure EngineerMust be a US Citizen or Green Card Holder able to get onsite in MT.Enterprise EnvironmentWe're looking for a hands-on Infrastructure Engineer to own and support core systems across a complex environment. This role blends project work, system design, and high-level troubleshooting, with strong autonomy and visibility across the business.What You'll DoDesign, implement, and maintain enterprise infrastructure (servers, networking, virtualization)Lead and execute projects from planning through deploymentProvide Tier 3 support for critical system and performance issuesManage Active Directory, DNS, DHCP, and Windows Server environmentsSupport network infrastructure including switches, routers, and firewallsPartner with teams and vendors to ensure reliability, security, and performanceCreate and maintain clear documentation, diagrams, and best practicesDrive continuous improvements and modernization effortsWhat You Bring5+ years of infrastructure / systems engineering experienceStrong experience with Windows Server, virtualization, and enterprise networkingSolid troubleshooting skills across systems and network layersExperience with documentation, change management, and project deliveryAbility to work independently and adapt quickly in a fast-moving environmentNice to HaveAzure or cloud exposureIndustry certifications (MCSA, Azure Admin, etc.)Experience with Linux/Unix environments or SAN/storage systems
$156k - $214.5k
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