Linux Systems Admin (IE1) with Security Clearance

Linux Systems Admin (IE1) Full time | Jovian Concepts, LLC | United States Posted On 10/02/2026 Job Information Posting ID AA-SA-26-001 Listing TTO/DO AA-SA-26-001 Industry Technology Number of Positions 2 Clearance Required Top Secret/SCI with Polygraph City Annapolis Junction State/Province Maryland Zip/Postal Code 20701 Job Description Jovian Concepts, LLC is seeking a Linux Systems Administrator in an Infrastructure Engineer Level 1 role for an exciting opportunity in the Annapolis Junction, MD area.

Our people are the foundation of our success, and we're looking for talented professionals to join our team and contribute their expertise to specialized, innovative solutions supporting our nation's most critical missions. Click "Apply Now" and take the next step toward joining the Jovian Concepts team!

CLEARANCE REQUIREMENT: A current and active TS/SCI clearance with a Maryland (MD) polygraph is required for consideration. CCA candidates will not be considered for this position at this time. The Linux System Administrator will be responsible for providing support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems.

Provides support to IT systems including day-to-day operations,monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems. Provides support for the escalation and communication of status to agency management and internal customers. Provides support for the dispatch system and hardware problems and remains involved in the resolution process.

Configures and manages LINUX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance.

Key Responsibilities

• Implement, maintain, and enhance complex research infrastructure and its security posture across classified/unclassified spaces
• Perform Linux and Windows system administration for workstations and servers
• Install, configure, troubleshoot, and integrate GOTS/COTS/open-source solutions
• Support and administer virtualization platforms, compute/storage, and remote access solutions
• Configure and troubleshoot networking and TCP/IP (switching/routing basics, port activation, patching/cabling)
• Build, maintain, and update gold images for Linux and Windows systems; apply baseline configurations and hardening best practices
• Execute routine patching and system/tool updates, and assist with audit/readiness tasks
• Support security administration activities such as endpoint protection, malware detection, intrusion detection, and logging/auditing solutions
• Physically set up, cable, label, and power systems; implement required physical contr ols in secure spaces
• Execute approved procedures for sanitizing and releasing system components/media
• Maintain working knowledge of security policies, technical safeguards, and operational security measures   Requirements CLEARANCE REQUIREMENT: A current and active TS/SCI clearance with a Maryland (MD) polygraph is required for consideration. CCA candidates will not be considered for this position at this time. Qualifications
• Minimum of 3+ years of experience and a Bachelors, 1+ years and a Masters, or a PhD in Computer Science or related discipline. 4 additional years of experience may be used in lieu of a degree, for a total of 7 years of experience
• Demonstrated experience conducting Linux system administration in operational environments.
• Demonstrated work delivery experience supporting IT and telecommunications
• Experience installing/configuring IT/network hardware and software
• Strong communication/ and collaboration skills supporting integrated teams (customer, subcontractors)
• Ability to document configurations and procedures clearly

Desired Skills

• Advanced troubleshooting experience with complex network issues such as IPSec, VXLAN, firewalls, load balancing, and DNS
• Experience with VDI and thin client architectures and operations
• Experience administering security tooling such as enterprise antivirus/EDR, malware detection, IDS, and audit/logging solutions
• Familiarity with open-source security/network tools (e.g., Snort)
• Experience with cloud and data platforms such as OpenStack, Hadoop, and/or Cloudera
• Working knowledge of AWS platforms/services and common deployment patterns
• Familiarity with modern network operations and capability delivery processes   Benefits In a recent employee survey, Jovian Concepts earned a 92% Overall Workplace Experience Score and 100% of employees agreed that they would highly recommend working at Jovian Concepts to others. A compressive benefits package is a key part of how Jovian Concepts fosters an exceptional work-life balance for its employees. Our benefits include:
• Great Healthcare Coverage: Three (3) healthcare options through CareFirst BlueChoice Advantage with 50% company-paid premiums. Tax-advantaged health savings account available with two options and up to 100% employer contribution. Dental + Vision: 50% employer-paid premiums for employees and family.
• Amazing Retirement Savings: 401K - 8% TOTAL CONTRIBUTION - 3% safe harbor - 5% annual profit share. Immediately vested on day one and no matching or additional employee contribution required!
• Generous Paid Time Off: 5 weeks PTO with no use it or lose it policy + 11 federal holidays + paid hours for company-required all-hands meetings + inclement weather leave
• Fantastic Education Assistance: Up-front tuition payment program, employees pursuing job related degrees and/or certifications could be eligible for full up-front funding depending on performance and job relevance.
• WE DON'T STOP THERE — ENJOY MANY MORE BENEFITS!
• Basic Life and AD&&D insurance, Long-Term and Short-Term Disability at no cost to eligible employees - Up to four (4) weeks paid parental leave - Birthdays and Jovian Concepts’ anniversary recognition and gifts - Annual merit increases - Loyalty bonus- Employee and family-friendly corporate events, including our annual Team Build event and Holiday Party extravaganza.

Disclaimer: Benefits offered by Jovian Concepts may vary based on work location, clearance level, eligibility, and other applicable criteria. Specific benefits, eligibility, and availability are not guaranteed and may differ from those generally described and are subject to change at the company’s discretion. Jovian Concepts, LLC. is an

Equal Opportunity Employer and does not discriminate on the basis of race, color, religion, sex, sexual preference, national origin, disability, status as a protected veteran, genetic information, or any other reason prohibited by law in employment. {{topMessage}} Job Details {{topMessage}} previous next {{message}} Step {{curStepInMandatorySecPrompt}}/{{totalNumOfStepsInMandatorySecPrompt}} For privacy and security purposes, please go through the following points and provide consent. Accept Decline