Systems Administrator II – Desktop Support

Posted Yesterday
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Port Hueneme, CA, USA
In-Office
Senior level
Security
The Role
Administer and support enterprise Windows Server, RHEL, and Nutanix environments onsite. Responsibilities include patch management, Active Directory administration, scripting and automation, monitoring, troubleshooting, backup and recovery, virtualization, security compliance, documentation, and technical support. The role requires maintaining reliable mission-critical infrastructure and implementing new capabilities in a classified defense environment.
Summary Generated by Built In

SAIC is seeking a highly motivated and skilled Senior Systems Administrator II – Desktop Support to join our MAJESTIC Joint Program Office (JPO) Team in support of an on-premises enterprise IT environment. This individual will provide desktop maintenance of mission-critical systems and infrastructure, including Windows Servers, Red Hat Enterprise Linux (RHEL), and Nutanix hyper-converged platform solutions.

The successful candidate will serve as a member of a dynamic team responsible for ensuring the performance, reliability, and security of a large-scale enterprise IT environment. The Systems Administrator II – Desktop Support will be responsible for desktop administration, patch management, system troubleshooting, and the implementation of new capabilities to meet operational and mission requirements. This role requires direct on-site support in the Springfield, VA location.

Key Responsibilities: 

  • Perform day-to-day system administration tasks to ensure the availability, security, and performance of critical enterprise Windows Server and RHEL systems
  • Monitor system performance and maintain enterprise infrastructure for compliance with security and reliability requirements
  • Manage patching across Windows and Linux servers using tools like WSUS, Microsoft SCCM, and Ansible
  • Write and maintain scripting solutions (e.g., PowerShell, Bash, or Python) to automate repetitive administrative tasks and improve operational efficiency
  • Implement and administer Active Directory (AD), including group policies, user administration, and cross-platform integration with RHEL
  • Leverage monitoring tools such as Nagios, Splunk, SolarWinds, and Grafana to monitor health and resolve issues proactively
  • Collaborate with cross-functional teams to ensure proper integration of Windows, Linux, and Nutanix environments into overall enterprise infrastructure
  • Analyze and troubleshoot system performance or configuration issues and implement long-term solutions to systemic challenges
  • Maintain detailed technical documentation, including system diagrams, SOPs, and recovery procedures
  • Provide technical support for application teams leveraging Windows Servers, RHEL systems, and Nutanix, ensuring seamless operations
  • Assist with evaluating and implementing new infrastructure technologies, tools, and processes to drive continuous improvement
Qualifications

Education:

  • High School diploma 


Certifications (CWF Requirements): 

  • Candidates must satisfy Cybersecurity Workforce Framework (CWF)ID 451 (System Administrator – Intermediate Level)requirements, as outlined byNavy COOL
    This requirement can be met by possessing one or more of the following qualifying certifications: 
  • CompTIA Cloud+ 
  • CompTIA Security+ 
  • GIAC Global Industrial Cyber Security Professional (GICSP) 
  • GIAC Security Essentials Certification (GSEC) 
  • Systems Security Certified Practitioner (SSCP) 

OR This requirement can be met through: 

  • ABachelor’s Degreein Cybersecurity, Computer Science, IT, or a related field

Experience: 

  • 3-6 yearsof professional experience managing and supporting enterprise-levelIT environments

Technical Skills: 

  • Expertise in Windows Server administration, including Active Directory, DNS, and group policy management
  • Strong knowledge of Red Hat Enterprise Linux (RHEL), including configuration, management, troubleshooting, and security hardening
  • Comprehensive understanding of enterprise virtualized environments (e.g., VMware, Hyper-V) and managing VMs in multi-hypervisor architectures
  • Experience with backup and recovery solutions, clustering, and high availability (HA) architectures
  • Proficiency in scripting and automation using tools like PowerShell, Bash, or Python to streamline operations
  • Expertise in system performance monitoring and troubleshooting tools (e.g., Splunk, Nagios, SolarWinds, or Grafana) for diagnostics and proactive issue resolution
  • Hands-on experience with network services (e.g., DHCP, TCP/IP, load balancing, and VLAN configurations)
  • Strong understanding of security and compliance standards, including RMF, NIST 800-53, and DoD 8510.01, for ensuring infrastructure meets operational requirements

Preferred Certifications (In Addition to CWF Requirements): 

  • Microsoft Certified: Windows Server Hybrid Administrator Associate 
  • Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) 
  • Nutanix Certified Professional (NCP) or advanced Nutanix certifications 
  • VMware Certified Professional (VCP) 
  • ITIL v4 Foundation or equivalent 

Clearance Requirement: 

  • ActiveTS/SCIclearance with the ability to obtain and maintain aTS/SCI with Poly

Work Environment and Notes: 

  • On-Site Work:All work must be conductedon-sitein Springfield, VA
  • Program Scope:Supports on-premises enterprise IT environments, including virtualized Windows servers, MS SQL Server databases, and networking layers
  • Subcontractor Role:Responsibilities and compensation vary based on the subcontract agreement, with a competitive salary aligned to market rates and role-specific requirements
About UsSAIC® is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

Skills Required

  • High school diploma
  • Meet Cybersecurity Workforce Framework ID 451 System Administrator Intermediate Level requirements through an approved certification or a bachelor's degree in Cybersecurity, Computer Science, Information Technology, or a related field
  • One or more qualifying certifications: CompTIA Cloud+, CompTIA Security+, GIAC GICSP, GIAC GSEC, or SSCP
  • 3-6 years of professional experience managing and supporting enterprise-level IT environments
  • Windows Server administration, including Active Directory, DNS, and group policy management
  • Red Hat Enterprise Linux configuration, management, troubleshooting, and security hardening
  • Experience with enterprise virtualization, including VMware or Hyper-V, and multi-hypervisor environments
  • Experience with backup and recovery, clustering, and high-availability architectures
  • Proficiency with PowerShell, Bash, or Python scripting and automation
  • Experience with system monitoring and troubleshooting tools such as Splunk, Nagios, SolarWinds, or Grafana
  • Experience with DHCP, TCP/IP, load balancing, and VLAN network services
  • Understanding of RMF, NIST 800-53, and DoD 8510.01 security and compliance standards
  • Active TS/SCI clearance with ability to obtain and maintain TS/SCI with polygraph
  • Microsoft Certified: Windows Server Hybrid Administrator Associate
  • RHCSA or RHCE certification
  • Nutanix Certified Professional or advanced Nutanix certification
  • VMware Certified Professional certification
  • ITIL v4 Foundation or equivalent
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The Company
HQ: Stamford, CT
34,000 Employees

What We Do

Spectrum San Diego is a high tech security innovator, specializing in ultra-low-dose X-ray screening systems.

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