Linux Subject Matter Expert
1 week ago
REQUIRES AN ACTIVE/EXISTING TS/SCI WITH CI POLYGRAPH - NO REMOTE WORK, MUST WORK ON SITEWe are seeking an experienced Linux Subject Matter Expert (SME) to provide advanced systems engineering and operational support for Dedicated Cross Domain Infrastructure within a secure Defense Intelligence Agency (DIA) environment. This role is embedded with our Cross Domain Solutions (CDS) team and is responsible for maintaining, hardening, troubleshooting, and optimizing Linux-based systems across multiple domains and mission enclaves.The ideal candidate will have a deep understanding of Red Hat Enterprise Linux (RHEL), system hardening (STIG), cross domain security architectures, and the accreditation processes necessary to support Top Secret/Sensitive Compartmented Information (TS/SCI) systems.Key Responsibilities:Lead system engineering, patching, configuration, and lifecycle maintenance of RHEL/CentOS/Oracle Linux systems supporting CDS environments.Implement and maintain DISA STIG-compliant baselines using automation tools (e.g., Ansible, SCAP, Puppet).Collaborate with CDS engineers, Information Assurance personnel, and enclave leads to meet ATO/RMF compliance.Troubleshoot kernel-level issues, performance bottlenecks, and cross-domain interface stability.Provide SME-level support for SE Linux, LDAP/Kerberos, and auditing solutions (e.g., syslog, Splunk forwarders).Manage OS provisioning, virtual infrastructure (e.g., VMware or KVM), and baseline image creation for cross-domain enclaves.Assist with developing and maintaining infrastructure-as-code configurations and custom scripts (Bash, Python).Serve as Tier III escalation for complex OS issues affecting CDS reliability or availability.Support enclave isolation and guard-side interface requirements under strict security policies.Document engineering decisions, operational procedures, and system configurations for cross-team knowledge sharing and accreditation packages.Required Qualifications:U.S. Citizen with active TS/SCI clearance and CI Polygraph (or ability to obtain).8+ years of experience administering Linux systems in a secure, mission-critical environment.3+ years supporting cross-domain or multi-enclave environments (CDS, Garrison, SMART.NeXT, CDSSF).Advanced knowledge of RHEL 7/8/9, including system hardening and kernel-level tuning.Experience with automation frameworks and scripting languages (Ansible, Bash, Python).Familiarity with RMF/ATO processes and audit log management.Strong understanding of networking (TCP/IP, firewalls, VLANs, DNS) as it relates to Linux systems.Desired Qualifications:DoD 8570 IAT Level II or III certification (Security+ CE, CASP+, CISSP).Red Hat Certified Engineer (RHCE) or similar Linux certification.Familiarity with CDS guard technologies (Radiant Mercury, Data Diode, Garrison, etc.).Experience with hypervisors and virtual infrastructure supporting isolated environments.Knowledge of Zero Trust, enclave segmentation, and compartmentalized architectures.
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Subject Matter Expert
2 weeks ago
Bethesda, United States HyLoSo International Full timeStatewide Agile Resources and Teams 2024–Labor Category – Subject Matter ExpertPosition Description: The Subject Matter Expert defines the problems and analyzes and develops plans and requirements in the subject matter area for moderately complex-to-complex systems. This position performs the following tasks: Coordinates and manages the preparation of...
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Bethesda, Maryland, United States Cybervance, Inc. Full time $120,000 - $180,000 per yearPosition Title: Endpoint Vulnerability Management Subject-Matter Expert / Technical Team LeadLocation:Bethesda, MD | Hybrid- Not RemoteCybervance is a rapidly growing information security and information technology company based in Washington, D.C., and we are an equal opportunity employer. We design, develop, and manage the successful execution of training...
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IT Subject Matter Expert
3 weeks ago
Bethesda, United States SAIC Full timeDescriptionSAIC, a leading provider of systems development & deployment, targeting & intelligence analysis, systems engineering & integration, and training capabilities and solutions for the Intelligence Community, is seeking creative and dedicated professionals to fulfill their career goals and objectives while delivering mission excellence on programs of...
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IT Subject Matter Expert
5 days ago
Bethesda, United States SAIC Full timeDescription SAIC, a leading provider of systems development & deployment, targeting & intelligence analysis, systems engineering & integration, and training capabilities and solutions for the Intelligence Community, is seeking creative and dedicated professionals to fulfill their career goals and objectives while delivering mission excellence on programs of...
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Subject Matter Expert- RxNav
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Bethesda, United States NIH-NLM-LH Full timeOverview Black Canyon Consulting (BCC) is actively looking for a part-time Subject Matter Expert - RxNav to support the the National Library of Medicine (NLM). The Lister Hill National Center for Biomedical Communications (LHNCBC)'s Applied Clinical Informatics Branch (ACIB) at the National Library of Medicine (NLM) identifies and develops innovative...
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Bethesda, Maryland, United States General Dynamics Information Technology Full time $124,100 - $167,900 per yearType of Requisition:RegularClearance Level Must Currently Possess:NoneClearance Level Must Be Able to Obtain:NonePublic Trust/Other Required:MBI (T2)Job Family:Program Delivery and ExecutionJob Qualifications:Skills:SIEM Tools, Vulnerability Assessments, Vulnerability ManagementCertifications:NoneExperience:10 + years of related experienceUS Citizenship...
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Data Loss Prevention Subject-Matter Expert
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Bethesda, United States KellyMitchell Group Full timeJob Summary:Our client is seeking a Data Loss Prevention Subject-Matter Expert / Technical Lead to join their team! This position is located in Bethesda, Maryland.Duties:Lead the design, implementation, and management of Data Loss Prevention (DLP) solutions across enterprise systems, applications, and cloud platformsDevelop and maintain agency-specific...
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Bethesda, United States SAIC Full timeDescription SAIC, a leading provider of systems development & deployment, targeting & intelligence analysis, systems engineering & integration, and training capabilities and solutions for the Intelligence Community, is seeking creative and dedicated professionals to fulfill their career goals and objectives while delivering mission excellence on programs of...
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Credentialing Subject Matter Expert
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Bethesda, United States HiLabs Full timeCredentialing Subject Matter ExpertThe HiLabs StoryHiLabs is a leading provider of AI-powered solutions to clean dirty data, unlocking its hidden potential for healthcare transformation. HiLabs is committed to transforming the healthcare industry through innovation, collaboration, and a relentless focus on improving patient outcomes.HiLabs...
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Clinical Subject Matter Expert: Gyne Onc
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Bethesda, MD, United States Mytonomy Full timeMytonomy Subject Matter Expert Job Description : Gynecology Oncology About Mytonomy Mytonomy is a market leader in enterprise cloud solutions for video-based patient engagement, education, and experience. Our platform delivers broadcast-quality microlearning videos and intelligent, personalized communications that support patients throughout their care...
