Linux System Administrator

As part of a cross-functional team, this role partners closely with organization members to support Linux-focused environments within secure labs. Responsibilities span Tier 1 through Tier 3 support, handling everything from frontline service requests to advanced engineering and troubleshooting.

Tier 1 Frontline Support: Respond to service requests, perform initial triage, gather required information, and provide first-line troubleshooting or escalation for Linux environments.

Tier 2 Intermediate Support: Implement, configure, and maintain Linux solutions, server hardware, virtualization platforms, and networking/storage technologies. Deploy updates and support operational stability efforts.

Tier 3 Advanced Engineering & Security Support: Resolve complex technical issues, handle advanced system escalations, and drive cross-functional resolutions across support levels.

Security, Hardening & Compliance: Utilize OpenSCAP, implement DISA STIG and NIST 800-53 security baselines, and execute automated system hardening and compliance remediation across enterprise assets.

Automation & Security Tooling: Contribute to automation, configuration management (Ansible preferred), and operational stability initiatives using industry-standard sec tools (such as vulnerability scanners and compliance auditing frameworks).

Process Improvement: Participate in the improvement of internal processes using frameworks such as LEAN, ACE, and CORE.

Collaboration & Communication: Build strong working relationships with customers and peers, foster connections with domestic U.S. DT peers, and effectively communicate with Engineering leadership to provide ROI based on project performance.

Ansible Tooling Scripting Hardening Operations Leadership Automation NIST 800-53 Communication Active Directory Technical Issues CompTIA Security+ Virtual Computing Business Valuation Security Clearance Process Improvement Compliance Auditing Top Secret Clearance Linux Administration Server Administration Full Stack Development Vulnerability Scanning Compliance Remediation Business Transformation Hardware Virtualization Configuration Management Red Hat Enterprise Linux Ubuntu (Operating System) IAT Level II Certification Troubleshooting (Problem Solving) Red Hat Certified Engineer (RHCE) Puppet (Configuration Management Tool) Red Hat Certified System Administrator (RHCSA) Certified Information Systems Security Professional Top Secret-Sensitive Compartmented Information (TS/SCI Clearance)

At least 5 years, Experience: University Degree with a minimum of 2 years of prior relevant experience, an Advanced Degree in a related field, or 5+ years of relevant experience in lieu of a degree.

Technical Skills (Required): Professional experience supporting Linux Systems Administration (RHEL and Ubuntu required), server administration, virtualization technologies (e.g., VMware), networking fundamentals, and compliance frameworks (NIST 800-53, DISA STIG). OpenSCAP and security hardening experience strongly preferred. Ansible experience is heavily preferred.

Certification (Required): Active DoD 8570/8140 IAT Level II certification (e.g., CompTIA Security+) or higher.

Clearance (Required): Active Top Secret Government Security Clearance.

Certifications (Preferred):

o Linux administration certifications (RHCSA, RHCE, Ubuntu, etc.)

o Automation / configuration management certifications (Ansible, Puppet, etc.)

o Security certifications (Sec+, CISSP, etc.)

Additional Details

Environment: Secure Labs / professional environment experience preferred.

Skills

Linux, System administrator, Red hat, Active directory, Vmware, Ansible, Scripting, Automation, Rhel, Infrastructure

Top Skills Details

Linux,System administrator,Red hat,Active directory, Experience: University Degree with a minimum of 2 years of prior relevant experience, an Advanced Degree in a related field, or 5+ years of relevant experience in lieu of a degree.

Technical Skills (Required): Professional experience supporting Linux Systems Administration (RHEL and Ubuntu required), server administration, virtualization technologies (e.g., VMware), networking fundamentals, and compliance frameworks (NIST 800-53, DISA STIG). OpenSCAP and security hardening experience strongly preferred. Ansible experience is heavily preferred.

Certification (Required): Active DoD 8570/8140 IAT Level II certification (e.g., CompTIA Security+) or higher.

Clearance (Required): Active Top Secret Government Security Clearance.

Certifications (Preferred):

o Linux administration certifications (RHCSA, RHCE, Ubuntu, etc.)

o Automation / configuration management certifications (Ansible, Puppet, etc.)

o Security certifications (Sec+, CISSP, etc.)

Additional Details

Environment: Secure Labs / professional environment experience preferred., Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

We’re partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That’s the power of true partnership. TEKsystems is an Allegis Group company., Were a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. Were a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. Were strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. Were building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.