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UNIX/Linux OS Administrator, Sr Principal

General Dynamics Information Technology • Offutt Air Force Base, NE • 11h ago

Req ID: RQ221639

Type of Requisition: Regular

Clearance Level Must Be Able to Obtain: Top Secret/SCI

Public Trust/Other Required: None

Job Family: IT Infrastructure and Operations

Skills:

DISA STIG,Linux,System Administration

Experience:

10 + years of related experience

US Citizenship Required:

Yes

Job Description:

UNIX/Linux OS Administrator

Make meaningful contributions that fuel critical outcomes for some of the most complex government, defense, and intelligence projects. Join GDIT as a UNIX/Linux OS Administrator for a career where your growth is just as important as the mission you support.

MEANINGFUL WORK AND PERSONAL IMPACT:

As a UNIX/Linux OS Administrator, the work you'll do at GDIT will be impactful to the mission of USSTRATCOM. USSTRATCOM is a Combatant Command responsible for strategic deterrence, nuclear operations, and enterprise IT services essential to national security. It oversees Nuclear Command, Control, and Communications (NC3), Joint Electromagnetic Spectrum Operations (JEMSO), Global Strike, and Missile Threat Assessments, working closely with other Combatant Commands, Services, and defense agencies. SCITLS will be a key component that will ensure mission success and the safety of the U.S. and its allies by providing 24/7 IT services and network support for NIPRNet, SIPRNet, JWICS, and SAP/SAR environment.

You will play a crucial role in providing administration support in the following areas:

Perform systems administration for enterprise Linux/Unix solution.

Install, configure, and maintain Linux/Unix operating systems.

Analyze and resolve problems associated with the operating system's servers, hardware, applications, and software.

Monitor system performance and ensure compliance with security standards.

Monitor everyday system, evaluate availability of all server resources, and performs all activities for Linux servers.

Assist with configuring and deploying all virtual machines and install and provide backup to all configuration procedures.

Maintain and monitor all patch releases, designs various patch installation strategies, and maintain all systems according to program standards.

Provides Tier 2 and 3 troubleshooting support, interfacing the end users and other technical teams from a service support perspective.

Conduct Security Technical Implementation Guide (STIG) compliance assessments, harden Linux systems according to DoW standards, and ensure adherence to security policies and procedures.

WHAT YOU'LL NEED TO SUCCEED:

BS degree; may be substituted for additional years of experience

10+ years of IT/DoW systems administration experience

Security Clearance Level: Top Secret with SCI eligibility

Required Certifications: ITIL 4 Foundation certified within 9 months of start; GFACT or CND or Security+ or GSEC

Location: Offutt AFB, NE

Strong experience with Linux distributions (RHEL, CentOS, Ubuntu, SUSE)

Experience with VMware, Hyper-V, KVM, or cloud-based VMs

Understanding of security hardening standards (DISA STIGs, CIS benchmarks)

OS patching and vulnerability remediation

SELinux or AppArmor experience

Managing firewall rules (firewalld, iptables)

Secure configuration of SSH, PAM, sudo policies

Strong troubleshooting communication (translating technical issues)

Incident response and root-cause analysis

Ability to escalate and collaborate with networking, storage, and security teams

GDIT IS YOUR PLACE:

Excellent customizable health benefits (Medical, Dental and Vision)

401K with company match

Educational Assistance and eLearning

Flexible work week

Internal mobility team dedicated to employee advancement

Rewards and Recognition programs

Innovative and collaborative environment encouraging highly motivated critical thinking

SCITLS

The likely salary range for this position is $120,275 - $162,725. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

Join our Talent Community to stay up to date on our career opportunities and events at https://gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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