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RTX · 19 hours ago

Senior Principal System Administrator

AZ888: RMS AP Bldg 928 1151 East Hermans Road Building 928, Tucson, AZ, 85706 USA

Full-time

Onsite

Senior Level, Lead/Staff

$108K/yr - $204K/yr

8+ years exp

RTX is a leading aerospace and defense company committed to helping the nation and allies defend freedoms. The Senior Principal System Administrator will collaborate with various teams to support critical programs, developing and maintaining secure IT environments across 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 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

Red Hat Enterprise LinuxWindows Server AdministrationCompTIA Security+ CertificationAutomation Tools (Ansible)Scripting Skills BashScripting Skills PythonTeam CollaborationMentoring ExperienceCommunication SkillsOrganizational Skills

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 top 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

Experience with Linux and Windows

Must have lead or mentoring experience

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

Deep 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

Familiarity with enterprise storage systems (e.g., NetApp) and virtual desktop infrastructure (VDI) technologies such as Horizon, Profile Unity, and NVIDIA GPU virtualization (NLS, DLS)

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