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RTX · 1 month ago

Principal System Administrator - Windows and Linux

CA222: 2006 E El Segundo Blvd BldgE04 2006 East El Segundo Boulevard Building E04, El Segundo, CA, 90245 USA

Full-time

Hybrid

Lead/Staff

$112K/yr - $224K/yr

8+ years exp

RTX is a company dedicated to helping the nation and allies defend freedoms and deter aggression. They are seeking a Principal System Administrator to provide IT systems administration in a heterogeneous environment, ensuring the security and efficiency of classified programs.

AerospaceManufacturingSecuritySensorTelecommunications

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Provide IT systems administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment

Understanding and knowledge of Windows Server to include but not limited to Active Directory, Group Policy, & DNS

Advanced Red Hat Enterprise Linux knowledge

Working as a team member in a fast-paced technological environment.  Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS)

Experience with data RAID, data encryption, and data backup uses and technologies

Install and configure software applications requested by end users

Work with Cybersecurity professionals to maintain security requirements and provide documentation and training on advanced IT processes and procedures and other tasks as assigned

Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date

Must be able to develop solutions and documentation to solve a variety of technical problems

Systems are operational 24x7 and occasionally require work effort beyond standard work hours

Travel is required to other US Domestic locations as business needs dictate up to 5% travel

Qualification

Windows Server 2016+Red Hat Linux 7+VMWare ESXiAnsibleNetAppData encryptionData backup technologiesTroubleshootingTeamworkCommunication skillsDocumentation

Required

Typically requires a bachelor's degree and a minimum of 8 years of prior relevant experience, or an advanced degree and 5 years of direct experience

Active and transferable U.S. government issued secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Windows Desktops installation, configuration, and maintenance

Windows Server 2016+ installation, configuration, and maintenance

Red Hat Linux 7+ installation, configuration, and maintenance

Experience with VMWare ESXi

Experience with NetApp

Experience with Ansible

Experience with operating systems and software patching

Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date

Preferred

Strong leadership, teamwork, communication (written and oral), collaboration, and organizational skills

Experience with Red Hat Enterprise Linux (RHEL) and its ecosystem, including authentication and identity services (SSSD, LDAP, Kerberos, NIS) and file sharing/integration services (Samba, NFS)

Expertise with automation and configuration management tools such as Ansible and Red Hat Satellite, along with strong scripting skills in Bash, Python, Perl, or C to support provisioning, patching, and lifecycle management

Hands-on experience with virtualization and containerization technologies, including VMware vCenter, vSphere, Horizon, ESXi, KVM, Podman, Docker, and Kubernetes/OpenShift

Familiarity with enterprise storage systems (e.g., NetApp) and virtual desktop infrastructure

Proficiency with monitoring, vulnerability scanning, and compliance assessment tools (ACAS, Splunk, Nessus, SCAP, STIG, Nagios, SolarWinds) and working knowledge of security frameworks (CMMC, NISPOM, JAFAN, JSIG, DFARS, DoD RMF)

Benefits

Medical

Dental

Vision

Life insurance

Short-term disability

Long-term disability

401(k) match

Flexible spending accounts

Flexible work schedules

Employee assistance program

Employee Scholar Program

Parental leave

Paid time off

Holidays

Company

RTX

Glassdoor3.8

RTX is comprised of three market-leading businesses – Collins Aerospace, Pratt & Whitney and Raytheon – working as one to answer the biggest questions and solve the hardest problems in aerospace and defense.

Founded in 1922

Arlington, Virginia, USA

10001+ employees