System Administrator III (TS/SCI w/ CI Poly required)

A&M Technologies, Inc is seeking an experienced Systems Administrator III to support a federal Operations & Maintenance (O&M) program. This individual will serve as a senior member of the infrastructure team responsible for maintaining mission-critical enterprise systems supporting a high-availability government environment.The ideal candidate will possess extensive experience administering Windows and Linux environments, virtualization platforms, enterprise storage, disaster recovery, system hardening, patch management, and troubleshooting complex infrastructure issues. The candidate will also provide technical leadership, mentor junior administrators, and support modernization initiatives.Primary ResponsibilitiesAdminister, maintain, and troubleshoot enterprise Windows and Red Hat Enterprise Linux (RHEL) server environmentsPerform installation, configuration, maintenance, hardening, and lifecycle management of enterprise infrastructureSupport VMware virtualization environments including VMware Cloud Foundation (VCF), virtual machines, clusters, and virtual desktop infrastructure (VDI)Support Cisco HyperFlex infrastructure and enterprise storage platforms including NetAppPerform server patching, vulnerability remediation, and system hardening in accordance with DoD security requirementsMaintain Active Directory, Group Policy, DNS, DHCP, certificate services, and authentication servicesSupport enterprise backup, replication, disaster recovery (DR), and Continuity of Operations (COOP) planningPerform root cause analysis for production incidents and provide advanced troubleshooting supportMaintain Citrix infrastructure and other enterprise application platformsSupport enterprise monitoring solutions including SolarWindsProduce and maintain technical documentation including:SOPsRunbooksAs-built documentationSystem diagramsCapacity plansDisaster Recovery documentationEvaluate emerging technologies and develop proof-of-concepts for government reviewParticipate in Configuration Control Board (CCB) activitiesCoordinate infrastructure upgrades, migrations, and modernization effortsSupport Help Desk escalations and participate in an on-call rotationProvide after-hours support for Priority 1 outages with a required 2-hour responseRequired QualificationsBachelor's degree in Information Technology, Computer Science, Engineering, or related field (or equivalent experience)8+ years of Systems Administration experienceActive Top Secret ClearanceDoD 8140/8570 compliant certification (Security+ CE or equivalent)Strong experience administering:Windows Server 2016/2019/2022Red Hat Enterprise Linux (RHEL)Experience supporting VMware infrastructureExperience supporting enterprise storage solutionsExperience with enterprise backup and disaster recoveryExperience performing patch management and vulnerability remediationExperience with Active Directory, Group Policy, DNS, and DHCPExperience creating technical documentationStrong troubleshooting skills across Windows, Linux, virtualization, and enterprise infrastructureAbility to support on-call operations and after-hours maintenanceDesired QualificationsVMware Certified Professional (VCP)Red Hat Certified System Administrator (RHCSA) or RHCEExperience with:Cisco HyperFlexVMware Cloud Foundation (VCF)NetApp StorageCitrixSolarWindsSQL ServerMicrosoft ExchangeVirtual Desktop Infrastructure (VDI)Experience supporting Cross Domain Solutions (CDS)Experience supporting Multiple Independent Levels of Security (MILS)Experience with STIG implementation and complianceExperience supporting DoD or Intelligence Community environmentsKnowledge of SECNAV M-5239.2Experience with automation using PowerShell, Bash, Python, or AnsibleExperience supporting enterprise GIS environmentsExperience participating in disaster recovery exercisesCompensation & Benefits HighlightsTarget Salary Range: $180,000-$200,000 DOECompetitive salary and benefits packageEmployee referral bonuses of up to $10,000 for eligible hiresAdditional bonus opportunities for exceptional performance and contributions to business development and company growthHealth & WellnessComprehensive medical, dental, and vision coverage for employees and eligible dependentsDeductible reimbursement of up to $1,000 for employee-only coverage and up to $2,000 for family coverage upon meeting plan deductiblesIncome Protection100% company-paid short-term disability insurance100% company-paid long-term disability insurance100% company-paid accidental death and dismemberment (AD&D) insuranceCompany-paid life insurance coverage up to $150,000Retirement401(k) plan with immediate vesting upon eligibility. Employees become eligible after six months of servicePre-tax and Roth contribution options availableCompany Match: A&M provides a dollar-for-dollar match on employee contributions up to 6% of eligible compensationNon-Elective Contribution (NEC): A&M provides an additional 6% company contribution to all eligible participants, regardless of employee contributionsPaid Time OffUp to 18 days of flexible paid time off (PTO)Additional PTO awarded based on years of service: +2 days after 3 years, +4 days after 6 years, and +7 days after 10 years10 paid holidays annually, including up to four floating holidaysWork-Life BalanceFlexible work schedules, including flex time and compressed work schedules, based on contract and project requirements