Linux System Admin

Role:
Senior System Administrator (Internally known as Senior Analyst, Information Workplace Services).

Location:

El Segundo, CA. Employment: 100% onsite.

Citizenship: U.S. Citizen required. Security Clearance:
Active/due for Top Secret DoD clearance required prior to start date.

• Provision, installation, configuration, operation, and maintenance of hardware and software for Linux infrastructure in classified programs.
• Support lab environments on workstations that interact with or control Special Test Equipment (STE).
• Server and storage management—hardware and logical/physical storage, cross‑platform authentication and access management, data backup and restoration, software and license configuration, workstation support.
• Design, implement, and maintain solutions for Linux servers, networking, performance monitoring/tuning, security hardening, and troubleshooting.
• Integrate Active Directory authentication (Kerberos, LDAP, Centrify).
• Configure and maintain SMTP, DHCP, DNS, NIS, LDAP, CIFS, NFS, Samba, and
  * NIX system security.
• Backup and disaster‑recovery using products such as Symantec Net Backup.
• Deploy security infrastructure products (e.g., antivirus).
• Gather requirements, design, and implement appropriate solutions.
• Install applications in multi‑server environments.
• Use an IT incident/service‑request system.
• Diagnose HP server and storage hardware.

• University degree or equivalent experience, and minimum of 5years of relevant experience (or advanced degree with at least 3years).
• Active and transferable U.S. government‑issued Top Secret security clearance required prior to start date.
• U.S. citizenship required.
• Experience supporting Linux operating systems.
• Experience with Active Directory, VMware, administration, backup and recovery.
• Must obtain DoDD
  8140/8570 certification (CompTIA Security+ CE or equivalent) within 6months of start date.

• VMware vSphere (ESXi, vCenter) experience.
• HP MSA storage, RAID configuration.
• Windows Server, Active Directory, Group Policy.
• Domain controllers, global catalogs, DNS, DHCP.
• Infrastructure backup, restore, disaster recovery and business continuity.
• Knowledge of NISPOM, JAFAN, JSIG, DFARS, DoD/RMF.
• Data storage, NAS, SAN technologies.
• IT project lifecycle management.
• VMware vCenter, vSphere, ESX and other virtualization.
• Microsoft WSUS, MECM, Exchange.
• Scripting.

• Salary range: $95,500–$181,700 (USD).
• 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.
• Short‑term and long‑term incentive compensation programs (dependent on position level and agreement).

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class.

RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section
503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.