Linux System Administrator
Company: Leidos
Location: Montgomery
Posted on: November 20, 2023
Job Description:
Description Leidos is currently seeking an Linux System
Administrator in support of the AFINC II contract for the highly
visible 26th Network Operations Squadron (26 NOS) at Montgomery,
Alabama, which provides a world-wide support mission. The 26 NOS is
responsible for the intranet support of the entire Air Force
network. The mission of the 26 NOS is to operate and defend the Air
Force (AF) Enterprise computer network consisting of the AF Wide
Area Network (WAN) routers, AF Network Increment 1 (AFNET Inc 1)
Gateways, and the 26 NOS Local Area Network (LAN) assets.Primary
Responsibilities
- Serve as Linux junior or mid-level systems administrator
working within a team reporting to SME/Senior Linux team members
operating in a 24x7 multi-enterprise networks environment
- Provide support for mission critical applications; Monitor,
troubleshoot, and analyze overall health of Red Hat Enterprise
Linux infrastructure (RHEL) and/or other Unix-based OS
- Manage, open, and remediate tickets (incident, problem, change,
service requests, etc.) in accordance with 26 NOS policies and any
Service Level Agreements (SLAs). This encompasses any ticketing
system used to record tickets utilized by 26 NOS personnel in
support of mission requirements
- Monitor, troubleshoot, and resolve hardware, software or
network issues; coordinate with vendors for providing feedback
and/or conducting break-fix actions or replacement of server
hardware items
- Monitor all activities of the network facilities and ensure
high system availability
- Maintain, update, develop and sustain technical documents,
analyses, and reports
- Provide technical support in all customer interaction
situations, including receipt of specifications, design, test, and
response to service requests.
- Perform root cause analysis, recommend, and implement tactical
and strategic solutions to problems
- Ability to utilize remote access out-of-band management tools
such as Red Hat Satellite, SSH, SCP, integrated Dell Remote Access
(iDRAC), integrated Lights-Out (iLO), or KVM technologies
- Ability to support 3rd party applications (NetBackup, ESS) and
the implementation of Linux based security solutions across a
variety of networks on physical and virtual environments
- Familiarity with general networking topics such as SSL, load
balancing, routing protocols, firewall rules, and ability to
support/interact with McAfee Endpoint Security System (ESS) for
RHEL
- Ability to maintain valid system certificates, application
certificates, F5 load balancing local traffic management (LTM) and
two-factor authentication (2FA) within a smart card
environment
- Preferred experience utilizing vendor best practices for RHEL
systems and secure management across multiple unclassified and
classified network locations supporting Tenable products within
Assured Compliance Assessment Solution (ACAS) including .SC
(SecurityCenter) and Nessus Scanner
- Ability or experience in evaluating scan report data from
Tenable Nessus; participate in the audit, review and response
phases of the Vulnerability Management (VM) life cycle
- Install and patch operating systems, applications, and document
Department Information Systems Agency (DISA) Security Technical
Implementation Guidelines (STIGs) checklists applicable to each
Non-classified or Secret Internet Protocol (IP) Router Network
(NIPRNet, SIPRNet)
- Monitor, implement and/or create report dashboard designs,
automated custom email report notifications, report log data
repositories for each environment specific to the following
audiences: Leadership & Executives; Cybersecurity Staff; and System
Administrators
- Ensure networks receive periodic updates from AFCYBER-released
software patches, updates, and upgrades via Time Compliance
Technical Orders (TCTO), Time Compliance Network Orders (TCNO),
Maintenance Tasking Order (MTO) and Notices to Airman (NOTAMs)
- Ensures external networks receive inventory data for compliance
data DoD Enterprise Logging Ingest, NiFi, and Cyber Situational
Awareness Refinery (ELICSAR) Big Data Platform (BDP)Basic
Qualifications
- 1 to 4 years hands-on experience
- Prefer RHEL experience implementation or administration in a
large-scale environment preferably overseeing daily, weekly,
monthly functions and best practices
- Prefer candidate with 2+ years of years of hands-on experience
in Linux-based systems support with experience in mid-to-large data
center environments and patch/update management
- Demonstrated advanced diagnostics, analytical, troubleshooting
skills
- Preferred system hardening experience
- Preferred experience with physical servers and in virtualized
environments such as VMware vSphere's vCenter Server Appliance,
ESXi hosts, virtual machines (VMs), deploying templates, host bus
adapters (HBA) fiber connectivity, and/or VM/Host distributed
resource schedules (DRS) groups/rules
- Ability or experience with Linux based scripting such as:
Ansible, Bash, Bourne, Perl, or Python
- Knowledge of data communications, local-area networking (LAN),
wide-area networking (WAN), servers, routers, switches, and
firewalls
- Network (Layer 2, 3) LAN/WAN knowledge and
switches/routers
- Thorough understanding of Internet Protocol (IP) routing,
switching, and OSI model
- Ability to lift, rack and provision government furnished
equipment (GFE) servers
- Technical degree, Associates or, Bachelor's degree in Computer
Science/Information Systems, S.T.E.M. or 2-4 years' relevant
experience in Information Technology preferably within systems or
applications administration is acceptable
- Required IA Certification: CompTIA Security+ CE (Continuing
Education) or GIAC Global Industrial Cyber Security Professional
(GICSP) or (ISC) SSCP - Systems Security Certified
Practitioner
- One or more of the following CE/OS based technical
certifications required: CompTIA Linux+ or Red Hat Certified System
Administrator (RHCSA) or Linux Foundation Certified System
Administrator (LFCS) or Linux Professional Institute LPIC-1, LPIC-2
or LPIC-3
- Active Secret government security clearance required.Preferred
Qualifications
- Possess refined critical thinking skills, should be a motivated
self-starter, and multi-task capable
- Good communication and interpersonal skills; Ability to follow
policies and procedures
- Ability to communicate in a clear speaking voice as well as the
ability to respond clearly to questions
- Aptitude to address negative situations and resolve them in a
positive manner
- Approach work tasks as diplomatic, adaptive to a dynamic
environment, dependable and reliable
- ITIL certification a plus
- Splunk Core Certified User or Splunk Core Certified Power User
Pay Range: Pay Range $54,600.00 - $98,700.00 The Leidos pay range
for this job level is a general guideline only and not a guarantee
of compensation or salary. Additional factors considered in
extending an offer include (but are not limited to)
responsibilities of the job, education, experience, knowledge,
skills, and abilities, as well as internal equity, alignment with
market data, applicable bargaining agreement (if any), or other
law.
Keywords: Leidos, Montgomery , Linux System Administrator, IT / Software / Systems , Montgomery, Alabama
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