Jobs in the United States

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Added 3 mins ago
Senior Systems Engineer (Platform Requirements & Interfaces)
George Bernard Consulting
San Francisco · San Francisco, CA
Write and maintain complete system requirements and Interface Control Documents (ICDs) for autonomous vehicle platforms.
Added 4 mins ago
Principal Engineer Mission Assurance
CORP-Corporate Office
United States
The ideal candidate must have the ability to support Program corrective action board, communicate written and verbally, and work in a team environment
Added 4 mins ago
Principal / Sr. Principal Research & Development Engineer – Advanced Sensors & Precision Instrumentation
CORP-Corporate Office
United States
We are seeking a Principal / Sr. Principal Research & Development Engineer to join our engineering team. In this role, you will research, design, model, develop, and characterize physical…
Added 12 mins ago
SN
Staff Software Engineer
Second Nature
Remote, United States
- $175,000 to $195,000 USD / year
…buy renters insurance, get air filters changed, handle pest control and more. That’s why we’ve built the world’s first Resident Experience Platform that makes resident onboarding, resident…
Added 16 mins ago
Aircraft Mechanic (Title 32) (Indefinite)
Army National Guard Units
Sandston, VA
…Works closely with maintenance supervisor(s) and production control personnel to report and maintain current aircraft status.Requests maintenance services exceeding AASF capabilities or…
Added 16 mins ago
AV Programming/Commissioning Engineer 3 - Tysons, VA
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Tysons, VA
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Added 25 mins ago
Plant Engineer IV - Regulatory Compliance Pressure Safety
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Added 31 mins ago
CAD Designer/Drafter
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Bill of Material and Product Lifecycle Management experience with multi-level BOM management, strict revision control, and release protocol. Familiarity with Siemens Team Center PLM system.
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Added 31 mins ago
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…care, we seek to connect the pieces of fragmented health care system and ensure people get the same level of care and compassion we would want for our loved…
Added 34 mins ago
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Experience with Engineering drawings and Quality Systems (e.g., deviation management, change control, CAPA, document management system).
Added 44 mins ago
Senior Systems Engineer
Sabre Systems LLC
Patuxent River, MD
Must have ten (10) years of recent and relevant experience in an engineering position, three (3) of which must be directly related to DoD Systems · Must have an active DoD Secret Clearance or higher
Added 52 mins ago
U.S. Quality Manager
ITW
Richton Park, IL
…accountable for the effectiveness of the Quality Management System and delivery of quality objectives. This leader sets clear expectations, develops team capabilities, and drives timely…
Added 52 mins ago
NG
2027 Electromechanical Engineer Intern - Rolling Meadows IL
Northrop Grumman
Rolling Meadows, IL
- $25.5 to $38 USD / hour
Help manage parts lists (BOMs) and ensure designs meet system, manufacturing, and environmental requirements.
Added 53 mins ago
Core Senior .NET Software Engineer
Evolent
Springfield, IL
…care, we seek to connect the pieces of fragmented health care system and ensure people get the same level of care and compassion we would want for our loved…
Added 1 hour ago
DCIM Engineer II
Quality Technology Services, LLC
United States
The Data Center Infrastructure Management (DCIM) Engineer II is responsible for the management and administration of the Electric Power Monitoring Systems (EPMS) and Building Management…
Added 1 hour ago
DCIM Engineer III
Quality Technology Services, LLC
United States
The Data Center Infrastructure Management (DCIM) Engineer III is responsible for the management and administration of the Electric Power Monitoring Systems (EPMS) and Building Management…
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Senior QA Engineer, Sterility Assurance
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Holly Springs, NC
The Senior QA Engineer, Sterility Assurance is responsible for providing Quality Assurance oversight of the site’s sterility assurance program to ensure the manufacture of sterile…
Added 1 hour ago
Senior Machine Learning Engineer
Xenon7
Remote, United States
We are seeking a Senior Machine Learning Engineer with extensive experience in production MLOps, model deployment, and system scaling to drive ML engineering initiatives for a top-tier life…
Added 1 hour ago
Senior Machine Learning Engineer
Xenon7
Remote, United States
We are seeking a Senior Machine Learning Engineer with extensive experience in production MLOps, model deployment, and system scaling to drive ML engineering initiatives for a top-tier life…
Added 1 hour ago
Senior Machine Learning Engineer
Xenon7
Remote, United States
We are seeking a Senior Machine Learning Engineer with extensive experience in production MLOps, model deployment, and system scaling to drive ML engineering initiatives for a top-tier life…
Added 1 hour ago
Senior Machine Learning Engineer
Xenon7
Remote, United States
We are seeking a Senior Machine Learning Engineer with extensive experience in production MLOps, model deployment, and system scaling to drive ML engineering initiatives for a top-tier life…
Added 1 hour ago
Senior Machine Learning Engineer
Xenon7
Remote, United States
We are seeking a Senior Machine Learning Engineer with extensive experience in production MLOps, model deployment, and system scaling to drive ML engineering initiatives for a top-tier life…
Added 1 hour ago
Senior Machine Learning Engineer
Xenon7
Remote, United States
We are seeking a Senior Machine Learning Engineer with extensive experience in production MLOps, model deployment, and system scaling to drive ML engineering initiatives for a top-tier life…

Delaware Nation Industries

Senior Linux System Administrator - 306502

Dahlgren, VA, United States

Salary Compensation: $120,000-$125,000

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Job details

Pay: Salary Compensation: $120,000-$125,000
Posting language: English
Posted: Oct 14, 2026

Original job description

Delaware Nation Industries is seeking a Linux System Administrator – Senior to provide advanced systems administration and engineering support for the Air Force Joint Worldwide Intelligence Communications System/Joint Interoperability Test and Services mission. This position will help maintain secure, resilient, and highly available Linux infrastructure across classified and unclassified environments supporting mission-critical operations. The Senior Linux System Administrator will serve as a technical authority for Linux platforms, virtualization, automation, system security, performance, and lifecycle management. The position requires the ability to independently solve complex problems, lead technical efforts, develop repeatable processes, and coordinate with Government stakeholders and other engineering disciplines.

Responsibilities

Administer, engineer, optimize, and maintain enterprise Linux systems and services across multiple security levels and operational environments.
Install, configure, harden, patch, upgrade, and decommission Linux operating systems, applications, services, and supporting infrastructure.
Support Red Hat Enterprise Linux and other approved Linux distributions, including system services, package management, storage, networking, authentication, logging, and performance tuning.
Design and implement repeatable procedures for system builds, provisioning, configuration management, patching, backup, recovery, restoration, and lifecycle operations.
Analyze complex system, application, hardware, virtualization, storage, and network problems; conduct root-cause analysis and implement durable corrective actions.
Monitor system availability, resource utilization, capacity, performance, and security posture; identify risks and recommend improvements before they affect mission operations.
Administer and troubleshoot VMware or comparable virtualized infrastructure, including virtual machines, images, templates, virtual networking, and storage dependencies.
Develop and maintain scripts and automation using Bash, Python, Ansible, Puppet, or comparable tools to improve consistency, reduce manual effort, and support troubleshooting.
Support DevSecOps practices, source-code or configuration repositories, automated workflows, and controlled deployment processes when applicable to the environment.
Apply DISA STIGs, security baselines, vulnerability-remediation procedures, and other DoD cybersecurity requirements to Linux systems and applications.
Execute or support ACAS/Nessus scans, vulnerability analysis, remediation, validation, and compliance reporting.
Maintain secure system access, including accounts, roles, privileges, SSH, authentication services, certificates, keys, and least-privilege controls.
Support SAN/NAS storage, NFS, iSCSI, file systems, backup infrastructure, and data-transfer services as assigned.
Support authorized electronic and manual data transfers between network environments and troubleshoot transfer failures, integrity issues, and related operational problems.
Participate in system integration, testing, acceptance, change control, technical interchange meetings, exercises, and mission-readiness activities.
Produce and maintain system documentation, architecture diagrams, standard operating procedures, configuration records, plans of action and milestones, and technical reports.
Provide technical leadership, mentoring, knowledge transfer, and cross-training to Mid-level administrators and other team members.
Coordinate with cybersecurity, network, Windows, application, database, service desk, and Government teams to resolve escalated incidents and maintain continuity of operations.
Participate in scheduled maintenance, planned outages, incident response, and after-hours or on-call support as required by the contract.
Active DoD TS/SCI security clearance.
At least six (6) years of professional Unix/Linux systems administration experience.
DoD 8570/8140-compliant IAT III certification, such as CISSP, CASP+ or another current DoD-approved equivalent.
Demonstrated experience administering enterprise Linux systems in a DoD, intelligence, classified, or similarly regulated environment.
Strong knowledge of Linux system architecture, networking, storage, system services, access control, logging, troubleshooting, and performance tuning.
Experience with system backup and recovery, software and patch management, security hardening, vulnerability remediation, and configuration control.
Experience with virtualization technologies, preferably VMware vSphere and related management components.
Proficiency with shell scripting and demonstrated ability to automate or streamline system administration tasks.
Experience diagnosing complex technical issues, performing root-cause analysis, and communicating solutions to technical and nontechnical stakeholders.
Strong written and verbal communication skills and the ability to work independently, lead technical efforts, and collaborate across functional teams.

Preferred Qualifications

Experience supporting Air Force, JWAC, JITS, Joint, intelligence, or other DoD mission environments.
Experience with Red Hat Enterprise Linux 7/8/9 or successor supported releases, CentOS, Scientific Linux, Debian, or comparable distributions.
Experience with Puppet Enterprise, Ansible, CloudBolt, Git, Docker, or comparable automation and DevSecOps technologies.
Experience supporting multi-level security, cross-domain solutions, classified networks, data-transfer systems, or mission-essential communications environments.
Experience with ACAS/Nessus, HBSS/endpoint security tools, STIG Viewer, vulnerability-management platforms, or comparable DoD cybersecurity tools.
Experience with SAN/NAS technologies, NFS, iSCSI, RAID, LVM, XFS, ext4, ZFS, or other enterprise file systems.
Experience with DNS, DHCP, NTP, LDAP/Active Directory integration, RADIUS, PKI, certificates, SSH, TCP/IP, and firewall-related troubleshooting.
Experience with monitoring, logging, configuration-management, ticketing, and IT service-management platforms.
Bachelor’s degree in information technology, computer science, cybersecurity, engineering, or a related field; equivalent experience may be considered.
Linux, VMware, automation, security, or other relevant industry certifications.

Benefits Include:

Covers 100% of employee benefit premiums, including Medical (PPO or HDHP Option), Vision, Dental
Matching 401K
Short- and Long-Term Disability
Pet Insurance
Professional Development/Education Reimbursement
Parking and Transit Benefits for NY, NJ, ATL, and DC Metro areas

Other Duties:

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.

Salary Compensation: $120,000-$125,000

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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Jobs in the United States