Senior Systems Administrator - RHEL

Description

SAIC is seeking a highly motivated and experienced ** Senior Systems Administrator - RHEL**  to join our ** MAJESTIC Joint Program Office (JPO) Team ** in  Springfield, VA . This individual will play an integral role in managing and optimizing mission-critical  **Red Hat Enterprise Linux (RHEL) ** systems in a hybrid IT enterprise environment.

The ideal candidate will have in-depth expertise in RHEL system administration, including configuration, maintenance, and performance optimization. Additionally, experience with virtualized environments and enterprise systems, including Windows Server and HCI solutions, is critical. The candidate will ensure system security, reliability, and efficiency while collaborating with cross-functional teams to support operations. This position requires  on-site support in a high-security, fast-paced environment.

Key Responsibilities:

• Administer, configure, and maintain  Red Hat Enterprise Linux (RHEL)  systems, including patching, upgrades, tuning, and troubleshooting

• Perform advanced system administration for  virtualized environments , such as VMware vSphere or Nutanix AHV

• Implement and enforce  system hardening  procedures for RHEL platforms to align with security and compliance requirements, including  STIGs  and  NIST 800-53  guidelines

• Automate regular administrative tasks using  Bash ,  Python , or tools like  Ansible

• Monitor and optimize system performance, storage, and network interfaces using tools like Splunk, Nagios, SolarWinds, or Grafana

• Perform  disaster recovery (DR)  and  high availability (HA)  operations on Linux-based and hybrid enterprise systems

• Manage centralized logging and monitoring for Linux systems to ensure audit compliance and detect vulnerabilities

• Collaborate with  cross-functional teams  to ensure smooth integration of RHEL systems with Windows Server, HCI technologies, and other enterprise IT environments

• Document standard operating procedures ( SOPs ), configuration changes, topology maps, and troubleshooting guides

• Support the evaluation of emerging RHEL and infrastructure technologies and recommend new solutions to enhance infrastructure performance and security

Qualifications

Required Qualifications:

Education:

• High School Diploma/GED

Certifications (CWF Requirements):

• Candidates must satisfy Cybersecurity Workforce Framework (CWF)  ID 451 (System Administrator – Intermediate Level)  requirements, as outlined by Navy COOL (https://www.cool.osd.mil/usn/cswf/index.html?CWFModel) 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:

• A  Bachelor’s Degree  in Cybersecurity, Computer Science, IT, or a related field

Experience:

• 1-3 years  of professional experience managing and supporting enterprise-level IT environments

Technical Skills:

• Expert in managing Red Hat Enterprise Linux (RHEL) systems, including provisioning, upgrades, system tuning, patching, and performance optimization

• Strong experience in system automation with tools like Ansible, Puppet, or Chef as well as scripting in Bash, Python, or PowerShell

• Familiarity with high availability (HA) concepts, including clustering for Linux environments

• Proficiency in monitoring and diagnostics tools (e.g., Splunk, SolarWinds, Grafana, or Nagios)

• Strong understanding of virtualization platforms, including VMware vSphere, Nutanix AHV, or Hyper-V

• Knowledge of networking technologies and protocols, including TCP/IP, DNS, VLANs, and load balancing configurations for Linux systems

• Experience supporting compliance with industry standards like RMF, NIST 800-53, and DoD cybersecurity guidelines

Preferred Certifications (In Addition to CWF Requirements):

• Red Hat Certified Engineer (RHCE)  certification (strongly preferred)

• Nutanix Certified Professional (NCP)  certification or VMware Certified Professional (VCP)

• Familiarity with  cloud platforms  (e.g., Microsoft Azure, AWS) and hybrid cloud/hybrid IT implementations

• Knowledge of storage technologies and backup solutions

• ITIL v4  certifications for service management processes

Clearance Requirement:

• Active  TS/SCI  clearance with the ability to obtain and maintain a  TS/SCI with Poly

• Candidate must be US Citizen

Work Environment and Notes:

• On-Site Work:  All work must be conducted  on-site  in 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

Target salary range: $80,001 - $120,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.

REQNUMBER: 2618435

SAIC is a premier technology integrator, solving our nation's most complex modernization and systems engineering challenges across the defense, space, federal civilian, and intelligence markets. Our robust portfolio of offerings includes high-end solutions in systems engineering and integration; enterprise IT, including cloud services; cyber; software; advanced analytics and simulation; and training. We are a team of 23,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $6.5 billion. For more information, visit saic.com. For information on the benefits SAIC offers, see Working at SAIC. EOE AA M/F/Vet/Disability