UNIX/Linux OS Administrator, Sr Principal

Requirements

• DISA STIG, Linux, System Administration Certifications:
• None 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:
• 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.
• Scheduled Weekly Hours:
• 40
• Travel Required:
• None
• T elecommuting Options:
• Onsite
• Work Location:
• USA NE Offutt AFB
• Additional Work Locations:
• Total Rewards at GDIT:

Benefits

Additional Information

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications:

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