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24 network and computer systems administrator jobs found

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Security Clearance network and computer systems administrator
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SAIC
Aug 19, 2026
Tier Three Technical Support
SAIC MD
Description SAIC is seeking a Senior (Tier 3) Technical Support Analyst, with in-depth Information Technology (IT) and communication systems experience in support of the U.S. Army Combat Capabilities Development Command (CCDEVCOM), Engineering and Systems Integration (ESI) Directorate, Quick Reaction Capability (QRC) Branch (C5ISR-QRC). The goal of the C5ISR-QRC is to research and develop technologies that enable systematic processes for discovering, selecting, organizing, distilling, sharing, developing and using information to better understand the enemy and the enemy's environment during full-spectrum operations and provides advanced collection capabilities with the flexibility to address changes in the operational environment and signatures of interest to develop situational awareness by acquiring precise and timely information. This is a full-time, on-site position on Aberdeen Proving Ground (APG), MD. The position is five days a week (Monday - Friday) but may require...
Lockheed Martin
Aug 18, 2026
DevSecOps Eng, Staff / Top Secret / Onsite - GA
Lockheed Martin GA
Basic Qualifications Active DoD Top Secret Clearance DoD 8140/8570 Certification Level II (Security + CE, CySA+, CISSP) DevSecOps experience with hands-on experience in CI/CD pipeline development, infrastructure as code (Ansible, Kubernetes, Terraform), and GIT version control Proficient in Red Hat Enterprise Linux (RHEL), with strong command-line and system administration skills Proficient in Microsoft Windows operating systems, including Windows Server 2016/2019 and Windows 11 Understanding of system hardening and security management, including hands-on experience with vulnerability remediation tools and platforms such as Nessus, McAfee, WSUS, Ivanti, Splunk, and SCAP Experience in on-premises virtualization technologies, including VMware ESXi/vSphere Comprehensive knowledge of enterprise storage and backup solutions, including EMC Unity and Data Domain Proficient in managing enterprise storage environments, including NetApp/EMC systems, tape management solutions,...
SAIC
Aug 12, 2026
Tier Two Technical Support
SAIC MD
Description SAIC is seeking a Journeyman Tier Two Technical Support Analyst with Information Technology (IT) and communication systems experience in support of the U.S. Army Combat Capabilities Development Command (CCDEVCOM), Engineering and Systems Integration (ESI) Directorate, Quick Reaction Capability (QRC) Branch (C5ISR-QRC). The goal of the C5ISR-QRC is to research and develop technologies that enable systematic processes for discovering, selecting, organizing, distilling, sharing, developing and using information to better understand the enemy and the enemy's environment during full-spectrum operations and provides advanced collection capabilities with the flexibility to address changes in the operational environment and signatures of interest to develop situational awareness by acquiring precise and timely information. This is a full-time, on-site position on Aberdeen Proving Ground (APG), MD. The position is five days a week (Monday - Friday) but may require shift...
SAIC
Aug 05, 2026
Senior Storage Engineer
SAIC ME
Description SAIC is seeking a Senior Storage Engineer to support the Portsmouth Naval Shipyard (PNSY) Information Technology Programs for the Dept of the Navy. This initiative leverages advanced technologies and integrates critical defense systems to optimize ship maintenance through IT applications, systems, and training, ensuring sustained mission success in naval ship maintenance operations. Work is performed on site in Kittery, ME. Role: Design, implement, and maintain secure and resilient data storage systems while ensuring they adhere to organizational cybersecurity policies and industry standards. This role combines expertise in storage technologies with a strong understanding of cybersecurity principles to safeguard sensitive data, protect systems from unauthorized access, and enable effective disaster recovery and business continuity. This role with focus on areas such as; storage infrastructure design and deployment, data protection and security, backup and...
SAIC
Jul 29, 2026
Network Administrator
SAIC CO
Description SAIC is seeking a Journeyman Network Administrator in Colorado Springs, CO who will provide network infrastructure expertise to the organization, focusing heavily on Cisco and Juniper routing, switching, and security platforms. The incumbent ensures the secure, reliable operation of the network backbone, translating technical directives, firewall requests, and security findings into concrete network actions. This position requires solid hands-on experience in managing enterprise network hardware, monitoring network traffic, and swiftly remediating connectivity or configuration issues across diverse vendor environments. Responsibilities: Network Operations & Maintenance. Configures, maintains, and troubleshoots Cisco (IOS/NX-OS) and Juniper (Junos) routers, switches, and firewalls to ensure high availability and secure data transmission. Security & Vulnerability Response. Analyzes and implements network-focused security tasks and Information...
SAIC
Jul 27, 2026
Systems Administrator II - Desktop Support
SAIC VA
Description SAIC is seeking a highly motivated and skilled Senior Systems Administrator II - Desktop Support to join our MAJESTIC Joint Program Office (JPO) Team in support of an on-premises enterprise IT environment. This individual will provide desktop maintenance of mission-critical systems and infrastructure, including Windows Servers, Red Hat Enterprise Linux (RHEL), and Nutanix hyper-converged platform solutions. The successful candidate will serve as a member of a dynamic team responsible for ensuring the performance, reliability, and security of a large-scale enterprise IT environment. The Systems Administrator II - Desktop Support will be responsible for desktop administration, patch management, system troubleshooting, and the implementation of new capabilities to meet operational and mission requirements. This role requires direct on-site support in the Springfield, VA location. Key Responsibilities: Perform day-to-day system...
SAIC
Jul 27, 2026
Systems Engineer - Platform
SAIC VA
Description SAIC is seeking a skilled and motivated Systems Engineer - Platform to join our MAJESTIC Joint Program Office (JPO) Team in support of an on-premises enterprise IT environment. The primary focus of this role is the design, implementation, operation, and maintenance of enterprise infrastructure and platform services to ensure the seamless performance, scalability, security, and reliability of mission-critical IT systems. In addition to traditional platform services, we are seeking a systems engineer with specific expertise in Kubernetes and containerization technologies to support modernization efforts. The successful candidate will leverage their knowledge of containerized architectures to improve platform scalability, streamline deployments, and enhance system resiliency. This role requires collaboration within a complex enterprise environment of virtualized systems, cloud platforms, Windows infrastructure, and networking services to deliver secure and...
SAIC
Jul 27, 2026
JEXC2 IT Trainer
SAIC FL
Description SAIC is seeking an IT Trainer for the Joint Expeditionary Command and Control (JEXC2) program based out of Panama City, FL. The qualified candidate will support the Naval Surface Warfare Center, Panama City Division, providing IT support to expeditionary military systems. This position requires an IAT Level II baseline certification, e.g., CompTIA Security+, prior to hire. Job Responsibilities: IT technical training of C4I systems to military, government, and contractor users Lead Systems and Networks training for classes of 15 to 20 personnel Frequent travel to US military bases and ships and government worksites, both CONUS and OCONUS Creating and maintaining training materials and curriculum and various other documentation Work on deployable IT systems that communicate over satellite Communicate effectively with end users via phone, email, chat, etc. Troubleshoot and resolve customer issues in timely manner according to mission guidelines Installation of...
Lockheed Martin
May 29, 2026
Systems Engineer-IT / Level 2
Lockheed Martin Boulder, CO
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. LM SPACE: WHAT WE'RE DOING Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. And we’re reimagining how space can connect us, ensuring security and prosperity. THE WORK Lockheed Martin is seeking a talented level 2 Systems Engineer-IT with a Secret clearance to work from our Boulder, CO location . Join a team where your network expertise will keep the sensors that watch...
General Dynamics Mission Systems, Inc
May 23, 2026
Space Force - Network System Engineer
General Dynamics Mission Systems, Inc Scottsdale, AZ
Basic Qualifications Bachelor's degree in Engineering, or a related Science or Mathematics field, plus a minimum of 5 years of relevant experience; or Master's degree plus a minimum of 3 years of relevant experience.   CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is preferred at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position The Network System Engineer provides requirements analysis, requirement testing, design, documentation, implementation, maintenance, and troubleshooting functions for data communications networks in support of the SDA program.   Primary duties:  Documents network plans and designs, installs components, and configures services to...
Lockheed Martin
Aug 21, 2026
Hardware Engineer Sr - E3
Lockheed Martin NY
Standard Job Description The Work As the Senior Test Software Automation Engineer, you will design and develop automated test station Software used to test RF/Digital/Analog/Power modules, subsystems, and systems. Designs can include automated test programs, as well as sim/stim test systems used in production test solutions. Responsibilities also include: - The design, development and maintenance phases of the project. - Presenting design documentation for customer and team reviews.  - Integration and validation of the test software. - Costing/proposal data generation for new business. Who you are The ideal candidate for this position will have: - Experience developing test automation software in an aerospace environment using LabView, C/C++ and Matlab. - Expertise in automating measurement equipment. -Previous experience with computer operating systems and administration.  What We're Doing Lockheed Martin is shaping the future of defense through cutting edge...
Lockheed Martin
Aug 21, 2026
Network Engineer - E2
Lockheed Martin CO
Standard Job Description WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. LM SPACE: WHAT WE'RE DOING Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. And we’re reimagining how space can connect us, ensuring security and prosperity. THE WORK Lockheed Martin is seeking a talented level 2 Network Engineer with a Secret clearance to work from our Boulder, CO location . Join a team where your network expertise will keep the...
SAIC
Aug 19, 2026
SCA Engineering Technician V
SAIC IN
Description SCA Engineering Tech V SAIC is seeking an Engineering Tech V in Bedford, Indiana to support the Common Aviation Command and Control System (CAC2S) Small Form Factor (SFF) and Medium-Range Intercept Capabilities (MRIC) program. JOB DESCRIPTION: This position will support mission-critical production and testing activities. The successful candidate will work closely with government customers, technicians, and engineering personnel to drive successful production, integration, and operational readiness of Air C2 systems. This role requires a strong background in tactical data links, network administration, and military system configurations, as well as proven leadership skills to manage production teams effectively. Note: This role will be fully onsite in Bedford, IN. No Remote Roles & Responsibilities: Act as a liaison between government engineering/logistics personnel and production teams to address system issues and ensure alignment...
Lockheed Martin
Aug 18, 2026
Cyber Software Engineer Senior
Lockheed Martin PA
Standard Job Description • Bachelor’s degree in Cybersecurity, Systems Engineering, Computer Science, Information Technology, or related STEM discipline; equivalent experience may be considered. • Minimum 5+ years of experience in cybersecurity, systems engineering, information assurance or relevant experience • Experience securing Linux and/or Windows operating systems in enterprise or mission environments. • Experience with Automation tools specifically Ansible and familiarity with deployment automation • Experience with vulnerability scanning and remediation tools. • Experience with scripting languages and automation tools • Ability to obtain and maintain a DoD Secret clearance (or higher, as required). Basic Qualifications What We're Doing At Lockheed Martin Rotary and Mission Systems, we are shaping the future of defense and security through innovation, integrity, and visionary thinking. Our teams apply the highest standards of business ethics and technical...
DLH
Jul 29, 2026
CANES SME Curriculum Developer (Job 1409)
DLH Norfolk, VA
About Us DLH delivers improved health and national security readiness solutions for federal programs through science research and development, systems engineering and integration, and digital transformation. Our experts in public health, performance evaluation, and health operations solve the complex problems faced by civilian and military customers alike by leveraging advanced tools – including digital transformation, artificial intelligence, data analytics, cloud enablement, modeling, and simulation, and more. DLH is dedicated to the idea that “Your Mission is Our Passion” and brings a unique combination of government sector experience, proven methodology, and unwavering commitment to innovation to improve the lives of millions. Overview Ready to put your  CANES  experience to work in a role that directly impacts fleet readiness? DLH is hiring a  CANES SME  ( Engineering Technician IV)  to join our team onsite at  Naval Station Norfolk ,...
SAIC
Jul 27, 2026
Security Control Assessor
SAIC VA
Description SAIC is seeking a highly skilled and motivated Senior Security Control Assessor (SCA) to support the cybersecurity assessment and compliance needs of mission-critical IT systems for the MAJESTIC Joint Program Office (JPO) Team. The successful candidate will perform independent assessments of security controls to ensure compliance with federal cybersecurity policies, standards, and frameworks, such as the Risk Management Framework (RMF), NIST SP 800-53, and others, to manage and mitigate risks to sensitive and classified systems. This role will require working closely with Information System Security Managers (ISSMs), Information System Owners (ISOs), and system administrators to conduct technical reviews, evaluate security controls, and assist with Authorization and Accreditation (A&A) efforts. This role requires on-site support in Springfield, VA. Key Responsibilities: Conduct independent, objective, and robust assessments of IT systems...
SAIC
Jul 27, 2026
Systems Engineer SME
SAIC IL
Description SAIC is seeking a Systems Engineer for the Cloud team to support an IT Service Management effort for USTRANSCOM located at Scott Air Force Base (AFB) in Illinois. The USTC Managed Information Technology Services (MITS) contract is intended to provide strategic, technical, and program management guidance and support services to facilitate the operations and modernization of the combatant command's infrastructure, systems, and applications. This support will be provided to the USTC Command, Control, Communications & Cyber Systems Directorate (TCJ6). The successful candidate initiates, supervises, and/or develops requirements from a project's inception to conclusion for complex to extremely complex programs; Provides strategic advice, technical guidance and expertise to program and project staff; Provides detailed analysis, evaluation and recommendations for improvements, optimization development, and/or maintenance efforts for client-specific or mission critical...
SAIC
Jul 13, 2026
Computer User Support Specialist
SAIC IL
Description The National Security Customer Group of SAIC is seeking a Computer User Support Specialist to support an IT support effort for USTRANSCOM located at Scott Air Force Base (AFB) in Illinois. The USTC Managed Information Technology Services (MITS) contract is intended to provide strategic, technical, and program management guidance and support services to facilitate the operations and modernization of the combatant command's infrastructure, systems, and applications. This support will be provided to the USTC Command, Control, Communications & Cyber Systems Directorate (TCJ6). The successful candidate will assist the as the primary point of contact for users experiencing a service disruption or requesting a service and/or a service change. They will document and facilitate service requests and restore normal service to the user IAW priority level response times . Provides Tier 1 & 2 deskside end-user support with strong interaction skills...
Lockheed Martin
Jul 10, 2026
Cyber Software Engineer Senior
Lockheed Martin King of Prussia, PA
Description: What We're Doing At Lockheed Martin Rotary and Mission Systems, we are shaping the future of defense and security through innovation, integrity, and visionary thinking. Our teams apply the highest standards of business ethics and technical expertise to design solutions that safeguard our nation and allies. Every day, we push boundaries to ensure mission success—and we invite you to be part of this critical work. Key Responsibilities • Design and implement secure system architectures for enterprise and mission-critical environments. • Apply cybersecurity engineering principles across the full system lifecycle, including requirements, design, implementation, verification, deployment, and sustainment. • Support Risk Management Framework (RMF) activities including control implementation, assessment, evidence collection, and ATO accreditation and sustainment. • Perform security hardening of operating systems, applications, databases, and network devices in...
Lockheed Martin
Jul 07, 2026
Infrastructure Network Engineer
Lockheed Martin Mount Laurel Township, NJ
Description: What We're Doing At Lockheed Martin Rotary and Mission Systems, we're driving innovation and upholding integrity in all that we do. Our mission is to push the boundaries of technology and pioneer groundbreaking solutions. By applying the highest standards of business ethics and visionary thinking, we believe that everything is within our reach. The Work In this Infrastructure Network Engineer role, you will: • Support network management and monitoring for Aegis programs, including troubleshooting and integration to ensure the network operates securely, efficiently, and reliably. • Contribute to network build development and delivery on a quarterly cadence. • Support network design and implementation, including installation and configuration of devices. • Apply automation tools and technologies to streamline system deployment. • Support customer and corporate events and exercises to test future capabilities for the Warfighter. Who You Are You have a...
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