Senior Systems Administrator - RHEL

SAIC•Newington, VA

7h•Onsite

About The Position

SAIC is seeking a highly motivated and experienced Senior Systems Administrator - RHEL to join their 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.

Requirements

In-depth expertise in Red Hat Enterprise Linux (RHEL) system administration, including configuration, maintenance, performance optimization, patching, upgrades, tuning, and troubleshooting.
Experience with virtualized environments such as VMware vSphere or Nutanix AHV.
Experience with enterprise systems, including Windows Server and HCI solutions.
Ability to implement and enforce system hardening procedures for RHEL platforms, aligning with security and compliance requirements like STIGs and NIST 800-53 guidelines.
Proficiency in automating administrative tasks using Bash, Python, or tools like Ansible.
Experience monitoring and optimizing system performance, storage, and network interfaces using tools such as Splunk, Nagios, SolarWinds, or Grafana.
Ability to perform disaster recovery (DR) and high availability (HA) operations on Linux-based and hybrid enterprise systems.
Experience managing centralized logging and monitoring for Linux systems to ensure audit compliance and detect vulnerabilities.
Ability to collaborate with cross-functional teams for system integration.
Ability to document standard operating procedures (SOPs), configuration changes, topology maps, and troubleshooting guides.
Ability to support the evaluation of emerging RHEL and infrastructure technologies and recommend new solutions.

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.