SYSTEM ADMINISTRATOR - Linux/RedHat/Splunk - 15+ yrs of Experience - TS/SCI w/Poly clearance is requ
$25kHalogen Engineering Group, Inc
Job Description
Job Description
System Administrator - Linux/RedHat/Splunk - 15+ yrs of Experience - TS/SCI w/Poly Required
Halogen Engineering Group is looking for a System Administrator who will be responsible for providing support for a large-scale Linux system including installation of COTS/GOTS/FOSS software, day-to-day operations, monitoring, and problem resolution for all the compute, network, memory, and storage system components. In addition, the System Administrator shall maintain the system security integrity and configure network components, along with implementing operating systems enhancements to improve reliability and performance.
Location: Annapolis Junction, MD
Travel Required: No
Shift: Day
Remote Type: Onsite
Call in Support: Yes
Security Clearance: Current TS/SCI
Polygraph: Required
Salary Range
The projected compensation range for this position is 217K to 230K (annualized USD).
Salary is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements
Capabilities
- Provide support for implementation, troubleshooting and maintenance of IT systems
- Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems
- Manage the daily activities of configuration and operation of IT systems
- Provide assistance to users in accessing and using IT systems
- Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems
- Provide 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.
- Provide support for the escalation and communication of status to agency management and internal customers
- Optimize system operations and resource utilization, and perform system capacity analysis and planning
- Provide in-depth experience in trouble-shooting IT systems
- Provide detailed analysis and feedback to agency management and internal customers for escalated tickets
- Provide support for the dispatch system and hardware problems and remains involved in the resolution process
- Configure and manage UNIX and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance
- Support the design of systems, mission architecture and associated hardware
- Possess a working knowledge and understanding of system administration interdependencies as part of the Service Oriented Architecture (SOA)
- Analyze and resolve complex problems associated with server hardware, applications and software integration
Required Skills
- Experience using the Linux CLI
- Experience developing scripts using Bash/Python
- Experience in performing System Administration including installation, configuration, and support of COTS/GOTS/FOSS software in a large-scale Linux cluster environment
- General technical knowledge regarding compute, network, memory, and storage system components
- Experience with Red Hat Satellite systems management solution
- Familiarity using Splunk for ingesting, indexing, searching, monitoring, and analyzing big data
- Experience with the sustainment and support of large Linux clusters including day-to-day operations, monitoring and problem resolution
- Experience configuring and sustaining VMware ESXi/Virtualization environments
- Experience with IaC (Infrastructure as Code) principles and automation tools such as SaltStack and Ansible
- Experience with corporate STE/STN security compliance policies and procedures
- Experience using system monitoring tools such as HPE One View and Nagios
- Experience with containerization technologies such as Docker
- Certifications - Security +
Desired Skills
- Experience with container orchestration technologies such as Kubernetes
- Experience with the Atlassian Suite of Tools such as Jira and Confluence
Qualifications
- Fifteen (15) years experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity is required.
- Bachelors degree in a technical discipline from an accredited college or university is required.
- Five (5) years of additional Systems Administration experience may be substituted for a bachelors degree.
CareFirst Insurance
Medical Plans
- Three available medical plans–2 Platinum PPO Plans ($0 Deductible) and 1 HSA Plan ($1500 deductible)
- Halogen pays 100% Medical Premium Costs up to $25,000
- CareFirst Wellness Rewards Program
Dental Plan
- Halogen pays 50% of the plan costs
Vision Plan
- Halogen pays 100% of the plan costs
401K Retirement Plan
· 10% contribution paid by the company, automatically vested and paid in each pay period.
Life Insurance, AD&D, Short and Long Term Disability Coverage
Paid Time Off
· 20 Paid Time Off Days
· 6 Federal Holidays
· 5 Floating Holidays
Bonuses
· Based on performance and billable hours
Halogen Engineering Group does not discriminate in employment on the basis of race, color, religion, sex (including pregnancy and gender identity), national origin, political affiliation, sexual orientation, marital status, disability, genetic information, age, membership in an employee organization, retaliation, parental status, military service, or other non-merit factor.
$25k
...Description Software Engineer - HPC/Linux - 5+ yrs of Experience - TS/SCI w/Poly clearance is required Halogen... ...securing access to critical HPC system resources through robust permission... ...processes Basic Linux systems administration including User and Group...LinuxContract workTemporary workRemote workShift work$25k
...Integration Engineer - HPC - 10+ yrs of Experience - TS/SCI w/Poly Clearance Halogen Engineering... ...stack and related system issues. This candidate... ...infrastructure within a Linux environment. In this... .... Basic Linux system administration skills and shell scripting...LinuxFull timeContract workRemote workShift work$112k - $179k
ResponsibilitiesCloud Systems Administrator 2 Annapolis... ...Perform Linux systems administration... ...Administration: RedHat, CentOS, or similar... ...& Operations: Experience troubleshooting... ...considered Active TS/SCI clearance with current... ...TechnologyClearance: Top Secret/SCI w/PolyLinuxContract workShift work$25k
...Defensive Cyber Operations \- 7+ yrs of Experience \- TS\/SCI w\/Poly Required \\\ \... ...directly performing full cycle system engineering, gathering... ...\ \\\ Security Clearance: \ \ \ Current TS\/SCI \... ...understanding of the Windows and Linux Operating System internals...LinuxFull timeContract workTemporary workWork experience placementRemote workShift work$176k - $282k
ResponsibilitiesThe Systems Engineer -Splunk Administrator will support a critical mission... ...years of additional SE experience may be substituted for... ...leading SystemsActive TS/SCI security clearance with current polygraph... ...TechnologyClearance: Top Secret/SCI w/PolySplunkContract workFor contractorsShift work$176k - $282k
...team is seeking Systems Engineer to:Outline... ...working in a Linux environment, interact... ..., have database experience (MySQL/NoSQL)... ...with JAVA and Splunk.#MDFSPQualificationsBasic... ...Qualifications: TS/SCI with Polygraph level clearance is required.... ...: Top Secret/SCI w/PolySplunkLinuxContract workFor contractorsFlexible hoursShift work$146k - $234k
...highly motivated User Experience software engineer to... ...collaborate with systems engineers and developers... ...Qualifications: TS/SCI with Polygraph level clearance is requiredBA/BS and... ...strong background in Linux, CSS, JavaScript and... ...Information TechnologyClearance: Top Secret/SCI w/PolyLinuxContract workShift work$104k - $166k
ResponsibilitiesThe team is seeking a Linux Systems Administrator / Systems Engineer with experience supporting Linux systems in... ...Certification is desired.Active TS/SCI with current polygraph... ...Position Category: Information TechnologyClearance: Top Secret/SCI w/PolyLinuxContract workShift work- ...ENTERPRISE MONITORING SYSTEMS ADMINISTRATOR YOUR IMPACT... ...NEED TO SUCCEED : EXPERIENCE REQUIREMENTS:... ...Security+ CE, etc.) CLEARANCE: Active TS/SCI clearance with a favorable... ...(e.g., SolarWinds, Splunk, Elastic/ELK,... ...of Windows and Linux systems administration...SplunkLinux
$48.51 - $84.9 per hour
...seeking a versatile System Administrator to tackle new... ...’ extensive experience in the cleared space... ...of Linux systems, and Windows... ...supports.Active TS/SCI with poly clearanceDesired... ..., etc.)Security Clearance Requirement:An active... ...Top Secret SCI w/Polygraph security...LinuxFull timeWork experience placementFlexible hours$25k
...Network Exploitation - 5+ yrs of Experience - TS/SCI w/Poly Required Halogen Engineering... ...: Onsite Security Clearance: Current TS/SCI... ...information, computer OS system data, executable file data... ...analysis of Windows systems, Linux systems or mobile devices...LinuxContract workTemporary workRemote workShift work- ...Description The Systems Specialist is... ...focuses on system administration, troubleshooting... ...AS ● Required Experience: 8+ years of... ...Windows and/or Linux server administration... ..., Nagios, PRTG, Splunk). Hands-on... ...stakeholders. ● Security Clearance Level: TS/SCI w/Poly ● Location: On...SplunkLinuxMonday to FridayShift work
$119.5k - $275k
Federal HPC Linux System Administrator, (Clearance required TS/SCI with Poly) On-Site, MarylandThis role has been designed as ‘’Onsite’ with an expectation that... ...investigate and resolve complex problems Direct experience and demonstrated proficiency with multiple programming...LinuxFull timeWork experience placementWork at office- ...seeking a talented and skilled System Administrator to join our Cyber... ...Qualifications: An Active TS/SCI clearance with polygraph is required Five (5) years experience as a SA in programs and contracts... ...(DoD 8570 compliant) UNIX/Linux system administration experience...Linux
$148.3k - $266.9k
...and fully cleared Systems Administrator to join our... ...one-stop-shop for Linux systems administration... ...Linux systems. Experience with Windows to support... ...'ll Bring:Active TS/SCI with Poly10+... ...is a plusSecurity Clearance Requirement:An... ...active Top Secret SCI w/Polygraph...LinuxFull timeFlexible hours$146k - $234k
...level Network / Desktop Administrator to support and maintain... ...to IAVAs, ensuring systems remain compliant with security... ...discipline and 15 years of system administration experience. Five years of additional... ...substituted for a BS.An active TS/SCI w/Poly is required.5+ years of...Contract workRemote workShift work- ...resources Position System Administrator, Level II... ...Requirement: Active TS/SCI clearance with full scope... ...performance working with Linux virtual machines... ...with full scope poly and Security+... ...and maintains RedHat Linux virtual... ...& Experience Bachelor’s Degree...LinuxWork experience placement
$103.8k - $218.1k
...Test Engineer (TS/SCI w/Poly) Job... ...time Minimum Clearance Required to Start... ...will analyze system requirements to... ...engineers, system administrators, and other... ...years of testing experience. Additional... ...experience testing in Linux, Unix, Windows... ..., LDAP (RedHat directory) Java...LinuxFull timeContract workWork experience placementLocal areaImmediate startFlexible hours$104k - $166k
...technologies, distributed systems, and modern... ...Operate and develop in Linux/UNIX environments, leveraging... ...QualificationsActive TS/SCI clearance with a current polygraphEducation and experience:High School Diploma/GED... ...TechnologyClearance: Top Secret/SCI w/PolyLinuxContract workFlexible hoursShift work$72.7k - $149.2k
...Software Engineer 1 (TS/SCI w/Poly)Job Category:... ...Full timeMinimum Clearance Required to Start... ...diverse software systems (e.g., processing... ...environmentso Will need experience with enterprise-... ...Injection.• Linux proficiency is... ...encryption, LDAP (RedHat directory) Java,...LinuxContract workWork experience placementLocal areaImmediate startFlexible hours$75.72 - $136.3 per hour
...to critical U.S. systems.What Required Skills... ...'ll Bring:Active TS/SCI with Poly is requiredMust... ...Degree7+ years’ experience working in the areas... ...with Elastic/Splunk/ or other Security... ...stakeholders.Security Clearance Requirement:An... ...Top Secret SCI w/Polygraph security...SplunkFull timeFlexible hours$135k - $216k
...-generation software systems. This role focuses on... ...Twenty (20) years of experience as a Software Engineer... ...’s degree.Active TS/SCI security clearance with a current polygraph... ...software for Solaris or Linux environments.Six (6)... ...TechnologyClearance: Top Secret/SCI w/PolyLinuxContract workWork experience placementShift work$146k - $234k
...Application Support Systems Engineer to join... ...running in Linux. Some software includes... ...Active TS/SCI clearance with current polygraph... ...requiredTen (10) years’ experience as a SE in... ...line and Systems Administration support Ability... ...TechnologyClearance: Top Secret/SCI w/PolyLinuxContract workShift work$112k - $179k
Responsibilities Systems Engineer | Location: RemoteActive TS/SCI with polygraph... ...for engineers with experience or interest in dataflow... ...TS/SCI security clearance with a current... ...formatsFamiliarity with Linux operating systems... ...EngineeringClearance: Top Secret/SCI w/PolyLinuxContract workImmediate startShift work$146k - $234k
...-generation software systems supporting critical mission... ...Twenty (20) years of experience as a SWE in programs... ...’s degree.Active TS/SCI security clearance with a current... ...developing software in Linux or Solaris environments... ...Information TechnologyClearance: Top Secret/SCI w/PolyLinuxContract workShift work- ...Description ACTIVE DIRECTORY SYSTEMS ADMINISTRATOR YOUR IMPACT Own... ...machines (Windows and Linux) to support mission... ...YOU’LL NEED TO SUCCEED EXPERIENCE REQUIREMENTS: Virtualization... ...g. Security+ CE, etc.) CLEARANCE: Active TS/SCI clearance with a...Linux
$95.9k - $178.1k
...Prior to Start: TS/SCI w/Poly SPFinal Clearance: TS/SCI w/Poly SPPay... ...and Mission Systems (RMS). The selected... ...Engineer/System Administrator team member to... ...education and experience as well as the resources... ...Windows and Linux operating... ...solutions (WSUS, SCCM, Splunk, ACAS, SCAP,...SplunkLinuxFull timeTemporary workWork experience placementCasual workFlexible hours- ...Performance Specialist The Systems Engineer will play a... ...Bachelor of Science ● Required Experience: 8+ years of related... ...in Windows Server, Linux, and/or cloud-based environments... ...required Sec ● Security Clearance Level: TS/SCI w/Poly ● Location: On Site ●...Linux
$135k - $216k
...a talented and skilled User Experience Designer to join our Cyber Intelligence... ...for devices, tools and systems. Responsible for... ...and Education): An Active TS/SCI clearance with polygraph is required.... ...and tools Well‑grounded in Linux fundamentals and knowledge in...LinuxContract workShift work- Systems Administrator - (Active TS/SCI security clearance with a current polygraph ) College Park, United States | Posted on 08/20/2026 Fifteen (15) years of experience as an SA in programs and contracts of similar... ...operating systems (Windows, Linux, Unix) Experience with...Linux
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to SYSTEM ADMINISTRATOR - Linux/RedHat/Splunk - 15+ yrs of Experience - TS/SCI w/Poly clearance is requ. Be the first to apply!
- remote systems administrator Annapolis Junction, MD
- computer systems administrator Annapolis Junction, MD
- application system administrator Annapolis Junction, MD
- hpc system administrator Annapolis Junction, MD
- IT infrastructure administrator Annapolis Junction, MD
- microsoft systems administrator Annapolis Junction, MD
- enterprise administrator Annapolis Junction, MD
- systems administrator Annapolis Junction, MD
- system admin Annapolis Junction, MD
- IT administrator Annapolis Junction, MD


