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Systems Planning & Analysis · 1 week ago

Classified System Administrator – Red Hat, VMware, and Windows Thick Client Support

Alexandria, VA

Full-time

Onsite

Senior Level

5+ years exp

Systems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. They are seeking a Classified System Administrator to implement, configure, and sustain Red Hat Enterprise Linux systems alongside VMware-based infrastructure and Windows endpoints in a secure, air-gapped lab environment.

AnalyticsInformation Technology

Growth Opportunities

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

The System Administrator install, configure, and harden RHEL 8/9 systems in alignment with DoD STIGs and CIS Benchmarks

Maintain system patching, package repositories, SELinux policies, and firewalld configurations

Support services, including SSSD integration, systemd configuration, file server management (NFS/SMB), and log forwarding

Develop and maintain baseline hardened images and automation scripts (e.g., Bash, Ansible)

The System Administrator will also deploy and manage VMware ESXi, vCenter, and virtual machine templates for both RHEL and Windows systems

Ensure secure resource allocation, network segmentation, and snapshot control across enclaves

Work with network and security engineers to maintain compliant virtual environments (vLAN tagging, vSwitch configuration)

The System Administrator is also responsible for providing mentorship and guidance for junior system administrators troubleshooting and performing end-user support services for classified systems

In this role, you will report to the Operations Manager while designing, building, installing and configuring physical and virtual servers/systems, virus updates, patching, maintenance, and performance tuning

As the System Administrator, you will be expected to collaborate with team members to develop creative, secure, and innovative solutions for complex technical issues

You will also support Defense Counterintelligence and Security Agency (DCSA) Technical Reviews and Command Cybersecurity Readiness Inspections (CCRI) as the subject matter expert for systems administration

Qualification

Red Hat Enterprise LinuxVMware ESXiWindows AdministrationRHCSARHCEDoD 8140 CertificationDISA STIG ComplianceMicrosoft ExchangeCustomer SupportTeam ManagementProblem SolvingTime Management

Required

Bachelor's degree in an Information Technology related field or equivalent work experience and certifications

Minimum of five (5) years system administration experience with two (2) or more years direct experience administrating networked classified systems in a Windows / Active Directory environment

Red Hat Certified System Administrator (RHCSA) or RHCE

Experience using VMWare virtualization technologies including ESXi, vCenter, and vSphere

Must meet Department of Defense 8140 certification requirements at IAT Level II. Acceptable certifications include Security+ CE, CCNA Security, CySA+, GISCP, and GSEC

Experience configuring systems for compliance using Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs) and STIG Viewer

Expertise managing Microsoft Domains and Domain Services (AD, DNS, DHCP, File Services, GPOs, etc.)

Experience managing Microsoft Exchange 2016/2019 including system configuration, hardening, and patching

Experience administering and patching RHEL 9 syslog servers

Experience evaluating Information System security posture by evaluating STIGs and identifying and remediating vulnerabilities

Ability to exercise independent judgement and manage a team of up to six (6) system administrators with varying levels of expertise

Superior problem solving and time management capabilities

Excellent customer relations and customer support skills

Active DoD Secret security clearance