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Principal Linux Systems Administrator with Security Clearance

Company:
APR Consulting
Location:
Linthicum Heights, MD, 21090
Posted:
May 13, 2025
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Description:

Our aerospace client is looking for a Principal Linux Systems Administrator with Active Secret Clearance who will work in a fast-paced team environment alongside engineers and program managers to help support and make our technologies a reality. Location: Linthicum, MD (On-site)

Position: Principal Linux Systems Administrator

Pay Rate: $40.36 - $54.68/hr. on W2

Duration: 6 months or longer

Schedule: 5x8 (M-F)

Shift: 1st shift Responsibilities:

-Perform as a Linux/Redhat Systems Administrator for a classified government contract.

-Perform as a Windows Systems Administrator for a classified government contract.

-Maintain smooth operations of all computer infrastructure in a multi-user computer system environment, including coordination of efforts with systems, software, and electrical design engineers, Information Systems Security Officers, PC desktop technicians, end users, network engineers, program/project managers, and IT management.

-Analyze internal and external customer requirements and determine equipment and software requirements for solutions to problems by means of automated systems.

-Recommend and implement system enhancements that will improve the performance and reliability of the system including installing, upgrading/patching, monitoring, problem resolution, and configuration management.

-Provide backup and recovery services, manage data storage devices, and implement/upgrade/update virus and malware protection on a routine basis.

-Create and maintain user and computer accounts and modify file permissions and security access lists.

-Test new releases of products to ensure compatibility and minimize user impact.

-Develop and document technical processes and procedures as needed.

-Make recommendations to purchase hardware, software, and system components.

-Interact, meet, discuss, and troubleshoot issues with vendors and evaluate vendor products, services, and suggestions.

-Adhere to strict Information Systems security guidelines in all cases.

-Deploy new STIGs & work with IT/IA to develop POA&Ms for vulnerabilities that cannot be mitigated or STIG settings that cannot be applied.

-Understand vulnerability and risk mitigation in accordance with RMF & DoD JSIG standards.

-Maintain security audit and logging information on all classified networked and standalone computers as directed by Information Systems Security Officers (ISSOs) and Information Systems Security Managers (ISSMs).

-Prepare security documentation for input to Computer Security.

-Report project status as required for all recurring and non-recurring efforts.

-Work under minimal direction and independently determine and develop approach to solutions. Qualifications:

-U.S. Citizenship required.

-Current DoD Secret security clearance (at a minimum), to include a closed investigation date completed within the last 6 years or must be enrolled in the DoD Continuous Evaluation (CE) Program, in order to be considered; the required security clearance must be maintained as a condition of continued employment.

-Current DoD 8570 IAT Level II (or higher) certification (example: Security+ CE); maintaining the required certification will be a condition of continued employment.

-Master's degree with 3 years of experience, or a Bachelor's degree with 5 years of experience, or an Associate's Degree with 7 years of experience; a High School Diploma or equivalent with 9 years of experience may be considered in lieu of a completed degree.

-Experience managing Red Hat Enterprise Linux OS in a classified environment.

-Experience managing Windows Server OS and domain architecture in a classified environment.

-Familiarity with DoD STIGs, deploying new STIGs, and working with IT and Information Assurance Analysts to develop POA&Ms for vulnerabilities that cannot be mitigated, or STIG settings that cannot be applied.

-Candidates must have the ability to obtain and maintain access to Special Programs within 9 months of their hire date; program and/or customer requirements may expedite this timeline, and maintaining an SAP/SAR clearance will be a condition of continued employment. Preferred Qualifications

-Bachelor's or a Master's degree in Information Technology, a Security+ CE, a Linux+ or RHCSA certification, an MCSE or similar Microsoft certification, and 5+ years of Linux, Windows, and VMWare server administration experience in a JSIG classified environment.

-Experience with Solaris OS.

-Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG information system environments.

-Experience installing, configuring, and maintaining computer hardware in a networked environment.

-Understanding of networking, including subnets, routing, and VLANs; Cisco experience and/or certification.

-Experience with Windows AD, LDAP, VMWare, and knowledge of SAN storage systems.

-Experience with Windows & Linux Operating systems that support Security Engineering tools.

-Knowledge of environmental monitoring tools (HBSS/Solar Winds/Splunk).

-VMWare experience with current version.

-Rudimentary Scripting experience.

-Experience with the creation and deployment of system images in an enterprise environment.

-Experience with Certification & Accreditation process.

-DoD 8570 Certification in a primary OS (Windows, Linux, Cisco).

-Active DoD Top Secret security clearance.

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