Jobs in the United States

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Added 4 hours ago
Manager Electronics Engineering 3
Northrop Grumman
San Diego
…innovative technologies to develop, design, produce, integrate, test, and sustain optimized product lines across the sector while providing a decisive advantage to the warfighter. Come be a…
Added 4 hours ago
JA
Senior Engineer Core Infrastructure
JetBlue Airways Corporation
Salt Lake City, UT · Washington, DC · Orlando, FL · Long Island City, NY
- $105,600 to $150,400 USD / year
The Senior Core Infrastructure Engineer – is focused on ensuring the creation and management of Infrastructure including managing operational stability, performance, and cost-efficiency of…
Added 4 hours ago
Test Program Manager, Autonomous Airpower
Anduril Industries
Costa Mesa, CA
…and build collaborative combat aircraft, missiles, and the software that powers these autonomous weapons. We are looking for a Test Program Manager for the FQ-44 Fury program. As Test…
Added 5 hours ago
STAFF/Senior Systems Engineer - Data Center & Server Infrastructure
Zones LLC.
Irvine, CA
The Staff/Senior Systems Engineer position provides an extraordinary opportunity to support our Engineering team. You will support, test and validate server/storage system level products.…
Added 6 hours ago
Senior ASIC Validation Software Engineer (Hybrid)
Cisco Systems, Inc.
San Jose, CA
We are seeking a versatile Senior Hardware Engineer to join the team. Your involvement across multiple stages of the product lifecycle offers a unique opportunity to engage with a broad…
Added 7 hours ago
Staff DevOps Engineer - CI/CD, Build Automation, Edge & Robotics
General Motors LLC
Sunnyvale, CA
General Motors is seeking a highly skilled Senior DevOps Engineer to lead the design, implementation, and continuous improvement of modern CI/CD and build automation capabilities for…
Added 7 hours ago
NEN Solution Engineering – Sr. Voice Engineer
LEIDOS, INC.
Remote, United States
We are seeking a seasoned, hands-on Senior VoIP, VTC, and Telephony Solution Engineer to support the design, integration, validation, deployment, and sustainment of enterprise Unified…
Added 8 hours ago
T
Senior AI/ML Engineer
TEKsystems
Atlanta, GA
- $119,800 to $179,800 USD / year
…supported through our TGS Talent Acquisition Team requires:The Senior AI/ML Engineer Generative AI is a hands-on technical contributor responsible for designing, building, deploying, and…
Added 8 hours ago
Senior Software Engineer, Infrastructure, Google Cloud Compute
Google
Kirkland, WA
Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. Our products need to…
Added 8 hours ago
Senior Firmware Engineer
Avegant Corp.
San Mateo, CA
This role is an in-office role 3+ days per week, located at our office located in San Mateo, CA, within walking distance of Caltrain
Added 8 hours ago
Sr. Electrical Hardware Engineer, AI Satellites (Starmind)
SpaceX
Bastrop, TX
…systems to the fully custom compute electronics, memory, and networking that form the brain of our on-orbit data centers. As a Senior Electrical Design Engineer on the Starmind Payload…
Added 8 hours ago
Senior Embedded Software Engineer
Nordson EFD LLC
RI
We are looking for a talented Senior Embedded Software Engineer to join the Nordson EFD product design team. In this role you will be responsible for designing, developing, troubleshooting,…
Added 9 hours ago
O
Senior Core Infrastructure Engineer
Oracle
Seattle, WA · San Francisco, CA
- $79,200 to $209,500 USD / year
As a Senior Member of Technical Staff, you will help build Lightweight Infrastructure (LWI), the next-generation runtime and platform layer for compute, storage, networking, identity,…
Added 9 hours ago
O
Senior Core Infrastructure Engineer
Oracle
Seattle, WA · San Francisco, CA
- $79,200 to $209,500 USD / year
As a Senior Member of Technical Staff, you will help build Lightweight Infrastructure (LWI), the next-generation runtime and platform layer for compute, storage, networking, identity,…
Added 9 hours ago
Senior Propulsion Design Engineer
Amentum
Huntsville, AL
As a Senior Propulsion Design Engineer, you will provide inline design, development, and test support for propulsion systems used in NASA’s Human Launch Systems. In this role, you will…
Added 9 hours ago
LTG - Sr Network Engineer
LEN Lennar Corporation
Miami, FL
The Senior Network Engineer is responsible for the design, implementation, and optimization of the organization's enterprise network, with a focus on integrating Secure Access Service Edge…
Added 9 hours ago
GA
Sr Systems Engineer – Avionics Networking
GE Aviation Systems LLC
United States
- $130,000 to $173,000 USD / year
As a Senior Systems Engineer – Avionics Networking, you will be a subject matter expert in deterministic avionics networking within GE Aerospace’s ION (Input/Output & Networking)…
Added 9 hours ago
G
Senior RF Systems Engineer
Gridware
San Francisco, CA
- $160,000 to $220,000 USD / year
You’ll leverage electromagnetic and system simulations, hands-on prototyping, and test and measurement tools to understand complex system and sub-system interactions - translating insights…
Added 9 hours ago
Senior Systems Engineer - Hyperscaler, AI, and Cloud Titans
Arista Networks
Seattle, WA
Internally, you will collaborate with a broad range of Arista teams, including Sales, Hardware Engineering, Software Engineering, Product Management, System/Solution Test, Proof of Concept…
Added 9 hours ago
Field Service Engineer
Ascential Technologies
Grand Rapids, MI
Ascential Technologies is a global leader in high performance automated test systems, precision manufacturing solutions, and advanced industrial automation. With more than 70 years of…
Added 10 hours ago
T
Software Systems Engineer 1
TEKsystems
Orange, CA
- $30 to $38 USD / hour
…systems.The selected candidate will work under the guidance of senior OnBase administrators and engineers, gaining hands-on experience supporting a large-scale enterprise…
Added 10 hours ago
Manager Electronics Engineering 3
CORP-Corporate Office
United States
…innovative technologies to develop, design, produce, integrate, test, and sustain optimized product lines across the sector while providing a decisive advantage to the warfighter. Come be a…
Added 11 hours ago
S
Hardware In Loop (HIL) Software Engineer Intern - Winter 2027
Skydio
San Mateo, CA
- $47 to $70 USD / hour
An ideal intern candidate is a junior, senior, or MS-level college student with industry experience developing test infrastructure with familiarity of device-level embedded software or…
Added 11 hours ago
Senior Software Engineer (Remote)
Govcio LLC
United States
GovCIO is seeking an experienced Senior Software Engineer to support the Department of Veterans Affairs (VA) Data Modernization initiative. The engineer will lead the design, development,…
Added 11 hours ago
SETS - Network Engineer - Associate
Technology, Automation, and Management, Inc.
McConnell AFB, KS
As an Associate Network Engineer, you will be an integral part of a dynamic team responsible for the critical support of network infrastructure within the Air National Guard (ANG). Your…

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