Senior Systems Administrator - RHEL

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

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.