Sr. Linux Systems Administrator AstrionSr. Linux Systems AdministratorColumbia, Maryland$145,000–$165,000 / yearAstrion has an exciting opportunity for a highly experienced Senior Linux Systems Administrator to build, secure, and sustain the Linux server and workstation estate, the high-performance computing (HPC) cluster, and the enterprise storage that run across three or more isolated classified networks supporting Department of Defense/Department of War (DoD/DoW) environments in Columbia, MD. The ideal candidate brings deep Red Hat Enterprise Linux (RHEL) expertise, extensive experience operating inside closed and air-gapped classified enclaves, and a proven record of building and maintaining systems in compliance with Risk Management Framework (RMF) , DoD STIG , and Comply-to-Connect (C2C) requirements.
Information System Security Officer (Remote) A.C. CoyInformation System Security Officer (Remote)Falls Church, VirginiaRemoteResponsibilities: Serve as the Subject Matter Expert (SME) for the Assessment and Authorization (A&A) process, providing strategic guidance to stakeholders, business units, and cross-functional teams while mentoring new A&A personnel and ensuring consistent implementation of security authorization requirements and best practices. Demonstrated proficiency in successfully evaluating and supporting documentation, validation, and accreditation processes necessary to assure that new and existing information technology (IT) systems meet the organization's information assurance (IA) and security requirements.
Risk and Compliance Systems Analyst - 17222 QED NationalRisk and Compliance Systems Analyst - 17222Vienna, VAThis team is responsible for security, risk monitoring, and compliance across the Oracle ERP Fusion ecosystem, leveraging the Risk Management Cloud (RMC) module to identify, assess, and mitigate risk. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact.
Junior Developer / Microsoft 365 Systems Specialist CSEngineeringJunior Developer / Microsoft 365 Systems SpecialistBethesda, MDFull timeAdminister users, groups, roles, permissions, and application access in Microsoft Entra ID and Microsoft 365.Support SSO and identity integrations using Entra ID, OAuth 2.0, OpenID Connect, SAML, CAC/PIV, and Navy Identity Service. Location: Bethesda, MD (Hybrid) COMPANY OVERVIEW Who we are- CSEngineering, a Service-Disabled Veteran-owned small business established in 2002, is dedicated to becoming the premier engineering and services firm in our industry, all while prioritizing client satisfaction above all else.
Junior Full Stack Developer / Microsoft 365 Systems Specialist Constellation Software Engineering, Corp.Junior Full Stack Developer / Microsoft 365 Systems SpecialistBethesda, MDThe candidate will develop, enhance, integrate, and support secure web applications while assisting with Microsoft 365 administration, endpoint management, identity and access management, cloud services, and technical support activities. What we do- With a rich history of excellence, we boast significant expertise in a wide array of areas, including satellite systems, weapons and missile systems, naval architecture, aviation systems, IT and Enterprise Architecture, and more.
NewNext Generation Desktop (NGDE) Systems Administrator - TS/SCI with Poly GD Information TechnologyNext Generation Desktop (NGDE) Systems Administrator - TS/SCI with PolyAnnapolis Junction, MarylandAs a Next Generation Desktop (NGDE) Systems Administrator supporting CIO Infrastructure Services, you will maintain, secure, and optimize a largescale thin client and virtual desktop ecosystem that delivers multidomain access across distributed environments. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.
2026 Fall Co-Op - Software Engineer (Sea Systems) - Hunt Valley, MD Textron Inc2026 Fall Co-Op - Software Engineer (Sea Systems) - Hunt Valley, MDHunt Valley, MD$26–$31 / hourRecruiting Company: Textron Systems Primary Location: US-Maryland-Hunt Valley Job Function: Engineering Schedule: Full-time Job Level: Individual Contributor Job Type: Internship / Co-Op Shift: First Shift Job Posting: 03/24/2026, 1:18:54 PM Job Number: 340605. Benefits may include health insurance and prescription plan coverage, dental insurance, family building benefits, vision insurance, mental health resources, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and programs that provide employees time away from work.
Satellite Communications/Ground Systems Integration & Test Engineer Peraton IncSatellite Communications/Ground Systems Integration & Test EngineerGreenbelt, MD$80,000–$128,000 / yearAs a mission lead, you will support all phases of the mission life cycle: from initial exploratory compatibility discussions, through the technical aspects of designing, implementing, and testing ground and space interfaces, to procedural aspects for scheduling and controlling operational service. Peraton is seeking a Satellite Communications / Ground Systems Integration & Test Engineer to support the Space Exploration Networks Services and Evolution (SENSE) contract on-site at NASA's Goddard Space Flight Center (GSFC), in Greenbelt, MD.
Cyber Systems Architect, Senior Advisor Peraton IncCyber Systems Architect, Senior AdvisorHerndon, VA$135,000–$216,000 / yearArchitect cybersecurity controls that account for the safety-of-life implications inherent in aviation systems - ensuring that security mechanisms do not introduce latency, single points of failure, or operational disruptions that could compromise airspace safety. You will serve as the principal authority on enterprise cybersecurity architecture, guiding engineering teams, subcontractors, and program leadership through the unique challenge of protecting safety-critical systems in an evolving threat landscape.
Linux Systems Administrator ManTech International CorpLinux Systems AdministratorFort Meade, MD$128,000–$214,400 / yearThere are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.
Senior Systems Integration & DevSecOps Engineer LyntrisSenior Systems Integration & DevSecOps EngineerSterling, VirginiaThe Senior Systems Integration & DevSecOps Engineer is a hands-on engineering role focused on integrating and testing complex DoD software systems, building the tooling that makes that testing repeatable, and maintaining the secure pipelines and environments those systems deploy into. Proficiency with Python and testing frameworks such as Pytest; Linux shell scripting and core CLI tooling (grep, awk, sed, ssh, scp); pipeline development using tools such as GitLab and Artifactory.
Lead Systems Integration & DevSecOps Engineer LyntrisLead Systems Integration & DevSecOps EngineerSterling, VirginiaThe Lead Systems Integration & DevSecOps Engineer is a strategic and hands-on role responsible for owning system integration testing, building the tooling and automation that makes that testing repeatable, and architecting secure, scalable infrastructure in support of complex DoD software systems. This position supports the Beyond Line of Sight (BLOS) Engagement Controller and Manager (BECM) program and requires strong software integration engineering, test engineering, and DevSecOps experience to support integration, verification, automation, and documentation efforts in classified, highly regulated environments.
NewSUPERVISORY INFORMATION SYSTEMS MANAGER U.S. Department of DefenseSUPERVISORY INFORMATION SYSTEMS MANAGERWashington, DC$169,279–$197,200 / yearYou may qualify at the GS-GS-15, if you fulfill the following qualifications: A. One year of specialized experience equivalent to the GS-14 grade level in the Federal service: Providing policy, strategy, oversight, and supporting information technology for the development, coordination, review, dissemination, and approval of Joint Command and Control (C2) information systems; Serving as principal advisor to high-level management on all matters relating to Global Common Operational Picture (GCOP) policies, procedures and supporting Information Technology (IT), and expeditiously responding to challenges in maintain optimal technical reliability and functionality for all Global C2 systems); Participating in the publishing of annual C2 priorities list that includes requirements, priorities, and budgets for modification enhancements, technical corrections, and new initiatives relative to Common Operational Picture and Shared Situation Awareness (SSA) development efforts; Possessing a working knowledge of the National Security Strategy, National Defense Strategy, National Military Strategy, the Unified Command Plan and experience in drafting and staffing Instructions/Manuals. As a SUPERVISORY INFORMATION SYSTEMS MANAGER at the GS-0301-15 some of your typical work assignments may include: Duties include the management, coordination, integration, modernization, and execution of all activities relating to 54 critical C2 sites; the organizations responsible for these sites include; Combatant Commands (CCMDs), Service Components, Agencies, Allies, and International Partnership for Peace members on the Global Common Operating Picture (COP) and multinational systems.
Senior Cloud Systems Owner LeidosSenior Cloud Systems OwnerMarylandWorking closely with software engineers, systems engineers, cybersecurity personnel, DevSecOps engineers, Product Owners, and solution architects, you will help deliver reliable cloud platforms that enable mission-critical FAA applications. This work aligns with the FAA's broader initiative to modernize legacy flight service capabilities, replacing aging infrastructure with scalable, cloud-based platforms designed to improve safety and operational efficiency—particularly in remote and high-dependency aviation environments.
Systems Engineer for Embedded Software Johns Hopkins Applied Physics LaboratorySystems Engineer for Embedded SoftwareLaurel, MarylandFull timeOur spacecraft technologies help our civilian space and national security space sponsors reason about multiple new technologies including space-based networking, machine learning, cyber security, and image recognition. This includes historic, science space firsts like New Horizons reaching Pluto, Parker Solar Probe being the first to “touch” the sun, and the DART mission that redirected an asteroid for planetary defense.
NewSecurity Officer Patrol Access Assistance Allied UniversalSecurity Officer Patrol Access AssistanceSterling, VAAs an Unarmed Security Officer at a dynamic technology location, you will monitor and patrol assigned areas, maintain a visible presence to help deter security-related incidents, support access control, and provide exceptional customer service and communication. Conduct regular and random unarmed patrols of buildings, parking areas, entry points, and perimeter areas to help deter unauthorized activity and identify security-related concerns.
Security Officer - Part Time Patrol Access Checkpoint Allied UniversalSecurity Officer - Part Time Patrol Access CheckpointSterling, VAConduct regular and random patrols of production areas, receiving and shipping locations, employee entrances, parking areas, and the facility perimeter to help identify unusual activity and help deter unauthorized access. As an Unarmed Patrol Officer at a food and beverage location, you will monitor and patrol assigned areas, maintain a visible presence to help deter security-related incidents, and support access control activities.
Senior Network Engineer (Security) Peraton IncSenior Network Engineer (Security)Washington, DC$146,000–$234,000 / yearPeraton provides a secure, worldwide, high-performance communications network comprised of real-time interactive applications operating over a dedicated IP backbone with secure services for complex national and worldwide executive-level communications. Peraton provides the O&M of the network infrastructure and its components, integration for development of hardware and software solutions, and task support for the delivery of system, network, software, and security solutions.
Analyst, Security Support Logistics Management InstituteAnalyst, Security SupportTysons, VA$40,000–$90,000 / yearPerform routine tasks to support the regular operations of the security function, including filing, typing, data entry, mail distribution, and maintaining materials inventory and supplies. Individual salaries are determined by various factors including, but not limited to location, internal equity, business considerations, client contract requirements, and candidate qualifications, such as education, experience, skills, and security clearances.
Systems Administrator BAE Systems PlcSystems AdministratorSpringfield, VA$118,095–$200,762 / yearAbout BAE Systems Intelligence & Security BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. The test center support team maintains smooth operation of multi-user computer systems, coordinates with network engineers, monitors and manages system resources, and performs systems security administration functions.