Principal Linux Systems Administrator- Must have active TS/SCI Poly clearance

RTX•Aurora, CO

2d•$86,800 - $165,200•Onsite

About The Position

The Principal Linux System Administrator supports critical programs with classified information-system capabilities. The role monitors and maintains system health and security posture, directly supporting customer mission-critical capabilities. The administrator works closely with program developers and system engineers to investigate issues, identify root causes, and implement solutions. The position is described as an 8x5 role with after-hours call-in responsibility and direct customer interaction in day-to-day operations. The posting identifies the work as 100% onsite, though it gives conflicting location information: Aurora, Colorado in the role description and Stennis, Mississippi in the onsite statement. The work environment fluctuates between routine and urgent depending on active tasks, priorities, and assigned-system performance. Responsibilities include Linux application maintenance, routine and preventative system maintenance, outage response and recovery, incident documentation, performance monitoring and trend analysis, and support for system engineering analysis and integration efforts.

Requirements

Typically, a bachelor’s degree and at least 5 years of relevant experience, or a master’s degree and at least 3 years of relevant experience.
Active and transferable U.S. government-issued TS/SCI with Poly clearance before the start date; the clearance must be active and existing on day one.
U.S. citizenship.
Experience with Linux systems administration.
Experience configuring domain information utilities such as Active Directory, Centrify, or LDAP.
An active DoD 8570 IAT Level 2 certification or higher, or the ability to acquire one within 30 days of the start date. Listed certifications include Security+ CE, CCNA Security, GICSP, GSEC, SSCP, CySA+, and CND.

Nice To Haves

Experience presenting technical information to customers, clients, or internal audiences.
Ability to work effectively with frequent, direct customer interaction in a real-time operational environment.
Ability to work under pressure to restore high-priority systems to operation.
Ability to navigate, debug, and modify programs in an advanced programming language.
Ability to write Perl, Python, and shell scripts.
Experience with storage products from Oracle/Sun/STK, EMC, IBM, NetApp, or DDN.
Experience with virtual or cloud computing technologies using Citrix, VMware, or Amazon Web Services (AWS).
Working knowledge of thin-client technologies.
Experience designing, implementing, and troubleshooting Public Key Infrastructure (PKI).

Responsibilities

Perform software application maintenance on mission systems running Linux and other operating systems.
Perform routine and preventative maintenance, including general computer tasks, application loads, disk utilization, system loading, and system monitoring.
Detect, isolate, document, report, and resolve system outages or operational-baseline problems; collect diagnostic data, restore system operation, develop workarounds, and support recovery.
Accurately document problems in logging and discrepancy-reporting tools.
Collect information about the environment at the time of a failure and support Tier 3 maintenance provider investigation and resolution.
Monitor and analyze system performance, document findings, and conduct trend analyses as required.
Support system engineering groups with ongoing analysis and integration efforts.
Work directly with the customer in most day-to-day aspects of the role.
Provide after-hours call-in support.

Benefits

Medical, dental, vision, and life insurance.
Short-term and long-term disability coverage.
401(k) match.
Flexible spending accounts.
Flexible work schedules.
Employee assistance program.
Employee Scholar Program.
Parental leave.
Paid time off and holidays.
Potential eligibility for annual short-term and/or long-term incentive compensation, depending on position level and collective-bargaining coverage.