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Senior Systems Administrator - RHEL

SAIC
Springfield, USA
Senior · 1–3 years experience
Onsite
Discovered 1 weeks ago
ansibleawsazurebashgrafanalinux

Full Job Posting

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.

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. 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.
  • Candidates must satisfy Cybersecurity Workforce Framework (CWF) ID 451 (System Administrator – Intermediate Level) requirements, as outlined by Navy COOL.
  • 1-3 years of professional experience managing and supporting enterprise-level IT environments.
  • 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.
  • 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.
  • Active TS/SCI clearance with the ability to obtain and maintain a TS/SCI with Poly.
  • Candidate must be US Citizen
  • 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.

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.

Preferred Qualifications

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

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