Principal Linux System Administrator

Job Description

A RTX, the world’s largest aerospace and defense company, offers a position as an experienced Linux System Administrator. The role requires a secret security clearance and will be responsible for administering classified systems. The system administrator must provision, install, configure, operate and maintain systems hardware and software related to a Linux infrastructure for classified programs.

• Implement and maintain an enterprise Linux environment including system administration, networking, performance monitoring/tuning, security hardening, and troubleshooting.
• Employ disaster recovery and business continuity standards and practices, including working knowledge to backup data, restore systems, and troubleshoot.
• Conduct short-term and long-term capacity planning to address network growth, technology modernization, and service availability.
• Monitor security infrastructure and mitigate threats with enterprise security platforms (e.g. Ivanti, Symantec, Splunk, Tenable Nessus).
• Leverage experience with Windows server, virtual servers, or Linux fundamentals that include DNS, DHCP, Active Directory, RAID, backup, restore and server replication.
• Install and configure desktop applications and replace hardware end points.
• Automation via scripting.
• Partner with cross functional teams from applications, project, security, vendors, and executive stakeholders to plan, design, and implement new IT infrastructure.
• Develop and maintain IT artifacts.

• server management (software and hardware)
• storage management (logical and physical)
• cross platform authentication and access management
• data backup and restoration
• software and license configuration
• and workstation support

• Typically requires a University degree or equivalent experience and a minimum of 5 years of prior relevant experience or an Advanced Degree in a related field and minimum 3 years 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.
• Experience with, but not limited to, enterprise technologies and system administration related to RHEL, Active Directory, WSUS, VMware, Backup Exec, Net Backup, and Windows.
• Experience managing large Storage environments (HPE MSA, Net App).
• Experience with Ivanti, Symantec, Splunk, Tenable and Nessus products.

• 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.
• System deployment, administration, performance tuning, and monitoring.
• Multi-tenancy architecture knowledge.
• Net App FAS, HPE MSA, NAS, and SAN technologies.
• Experience with Window Servers, Active Directory, Group Policy, WSUS, Microsoft Configuration Manager (MCM) [formerly SCCM, MECM], and Exchange.
• Network and infrastructure services such as domain controllers, global catalogs, DNS, and DHCP.
• Practical knowledge of business continuity and disaster recovery practices.
• Experience with datacenter concepts and technologies.
• Direct working experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF.

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value:
Trust, Respect, Accountability, Collaboration, and Innovation.

• 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

The salary range for this role is 95,500 USD - 181,700 USD. The salary range provided…