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Linux System Administrator

Omniscius Consulting

Orlando, FL

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JOB DETAILS
JOB TYPE
Full-time
SKILLS
Access Control, Adobe Product Family, Auditing, Best Practices, CCNA - Cisco Certified Network Associate, Calendar Management, Change Management, CompTIA Security+, Computer Firmware, Computer Security, Computer Workstations, Configuration Management, Customer Support/Service, DNS (Domain Name System), Defense Information Systems Agency (DISA), DoD Directive 8140, DoD Directive 8570, Document Change Management, Endpoint Security, Enterprise Applications, Firewalls, Government, Help Desk, IAT - Information Assurance Technical, Identify Issues, Internet Security, Java, Laboratory Operations, Leadership, Linux Administration, Linux Operating System, McAfee Product Family, Microsoft Active Directory, Microsoft Product Family, Microsoft VBScript (Visual Basic Script) Scripting Language, Microsoft Windows Operating System, Microsoft Windows Server, Microsoft Windows System Administration, Operating Systems, Operations Processes, Performance Analysis, Red Hat Linux Operating System, Secret Clearance, Security Clearance, Security Monitoring, Server Support, Software Administration, Software Patches, Splunk, Support Documentation, Systems Administration/Management, Systems Maintenance, Team Lead/Manager, Technical Support, Technical Writing, United States Department of Defense (DoD), User Account Administration, VMWare, VMWare ESX/ESXi, VMWare vSphere
LOCATION
Orlando, FL
POSTED
Today

Our client is seeking an experienced Systems Administrator to support mission-critical Department of Defense (DoD) operations in Orlando, FL. This is an excellent opportunity to work in a secure, fast-paced environment supporting enterprise infrastructure, cybersecurity initiatives, and lab operations while collaborating with engineering and cyber leadership.

If you thrive in Windows and Linux environments, enjoy solving complex infrastructure challenges, and have experience supporting DoD systems, we'd like to hear from you.

As a Systems Administrator II, you will:

  • Administer, maintain, and troubleshoot Windows and Linux server environments supporting mission-critical systems.
  • Install, configure, and maintain operating systems, software, firmware, and enterprise applications.
  • Configure user accounts, permissions, group policies, and system access controls.
  • Monitor system performance, identify issues, and perform hardware and software troubleshooting.
  • Maintain server configurations in compliance with DISA STIGs and cybersecurity best practices.
  • Support vulnerability management activities using ACAS and other DoD security tools.
  • Perform system hardening, patch management, and configuration management.
  • Support VMware virtual infrastructure including ESXi and vSphere environments.
  • Provide Tier I, II, and III technical support through the enterprise help desk.
  • Assist with lab operations and provide technical support during scheduled testing events.
  • Collaborate with Cybersecurity and Engineering teams to implement secure, reliable infrastructure solutions.
  • Maintain centralized logging solutions such as Splunk (or similar technologies).
  • Support system documentation, change management, and operational procedures.

Required Qualifications

  • Active Secret Security Clearance
  • 3–5 years of Systems Administration experience
  • DoD 8570 IAT Level II Certification (Security+, CCNA Security, CySA+, etc.)
  • Bachelor's degree preferred (equivalent experience considered)
  • Must be local to the Orlando, FL area
  • Must be willing to work onsite full-time

Required Technical Experience

Candidates should have experience with most of the following:

Operating Systems

  • Windows Server 2019 & 2022
  • Windows Workstation Administration
  • Linux Administration (RHEL 7 & RHEL 8)
  • Proxmox

Virtualization

  • VMware ESXi
  • VMware vSphere

Infrastructure

  • DNS
  • MDT
  • PXE Imaging
  • Active Directory
  • User and Group Management

Cybersecurity & Compliance

  • ACAS (Assured Compliance Assessment Solution)
  • DISA STIG implementation and remediation
  • System hardening
  • Patch management
  • Vulnerability remediation

Enterprise Applications

  • Splunk or similar centralized logging platforms
  • Java
  • Adobe
  • Microsoft Edge
  • VBScript

Endpoint & Security Management

  • Trellix / McAfee ePO
  • ENS Firewall
  • DLP
  • Policy Auditor
  • HBSS / AESS

Help Desk & Operations

  • ManageEngine Service Desk (Tier I-III)
  • System troubleshooting
  • Hardware diagnostics
  • Technical documentation
  • Change management support

Preferred Qualifications

Experience supporting one or more of the following is highly desirable:

  • OCSP Axway Server Administration
  • Enterprise logging and monitoring platforms
  • DoD laboratory environments
  • Secure enterprise infrastructure
  • Mission-critical government systems

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About the Company

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Omniscius Consulting

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