Systems and Platform Engineer LeidosSystems and Platform EngineerBethesda, MarylandJuly 23, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Information Systems Security Engineer ( ISSE) CACIInformation Systems Security Engineer ( ISSE)Columbia, Maryland$120,800–$265,800 / yearPay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Job Title: Information Systems Security Engineer ( ISSE)Job Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental US* * * The Opportunity:
Information Systems Security Engineer (ISSE)-TS/SCI w/Poly PeratonInformation Systems Security Engineer (ISSE)-TS/SCI w/PolyAnnapolis Junction, Maryland$146,000–$234,000 / yearFull timeAs an Information Systems Security Engineer (ISSE), you will play a key role in securing complex systems, ensuring compliance with federal cybersecurity frameworks, and protecting sensitive information. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.
Systems Modeling Engineer – Space Safety & Sustainability - TeraWave Blue OriginSystems Modeling Engineer – Space Safety & Sustainability - TeraWaveBay Area, Washingtonand/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. You will work alongside engineers modeling power, communications, and orbital performance, ensuring that space safety analysis is tightly coupled to the broader system picture and that sustainability trades are evaluated in the context of their impact on network capability.
NewAsset Manager and Network Engineer Booz Allen HamiltonAsset Manager and Network EngineerElkridge, MarylandAs a network engineer on our team, you’ll use your experience in network design and architecture, system interoperability, network device configuration and usage, and virtual routing and forwarding to support the nation’s defense and respond to evolving adversaries. You’ll help support the development of enterprise-wide management solutions, work through complex device integration tasks, and increase security, reliability, and availability for mission-critical workflows.
NewAsset Manager And Network Engineer Booz Allen Hamilton Inc.Asset Manager And Network EngineerUSA, MD$77,600–$176,000 / yearAs a network engineer on our team, you'll use your experience in network design and architecture, system interoperability, network device configuration and usage, and virtual routing and forwarding to support the nation's defense and respond to evolving adversaries. You'll help support the development of enterprise-wide management solutions, work through complex device integration tasks, and increase security, reliability, and availability for mission-critical workflows.
Network Engineer (All Levels) AdapticNetwork Engineer (All Levels)Annapolis Junction, MDWhether you're early in your career or leading network architecture and engineering efforts, we're looking for Network Engineers at all levels who enjoy solving complex problems and keeping systems running at peak performance. You'll support and enhance network infrastructure across design, implementation, and operations—ensuring secure, reliable connectivity in high-stakes environments.
Information Systems Security Engineer/IT Systems Eng University of Southern CaliforniaInformation Systems Security Engineer/IT Systems EngArlington, VA$130,000–$140,000 / yearTechnical Expertise: Familiarity with personnel and facilities security in classified environments Experience performing ISSO responsibilities Experience with: CMMC NIST 800-171 and/or NIST 800-53 CISSP or equivalent security certification Experience supporting higher education or research-focused academic environments Interpersonal and Communication Skills: Strong written and verbal communication skills. When extending an offer of employment, the University of Southern California considers factors such as (but not limited to) the scope and responsibilities of the position, the candidate’s work experience, education/training, key skills, internal peer equity, federal, state and local laws, contractual stipulations, grant funding, as well as external market and organizational considerations.
Mid-Level Software Engineer Belay TechnologiesMid-Level Software EngineerLaurel, MDFull timeSeveral factors influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, education, specific skills and competencies and certifications. This role will initially support the final release activities for the Power Space and Cooling (PSC) application as it transitions into sustainment and will continue to play a key role in maintaining and modernizing the application's backend services.
Senior AI Engineer (SWE-3) LeidosSenior AI Engineer (SWE-3)Linthicum Heights, MarylandMission Focus : Collaborate closely with technical leadership to design, develop, and maintain LLM orchestration frameworks that coordinate static analyzers, retrieval-augmented generation (RAG) systems, and automated testing pipelines. Seeking a motivated Senior AI Engineer with a proven track record in software engineering and deep understanding of Artificial Intelligence/Machine Learning (AI/ML) techniques to support the exciting new AI and Emerging Technologies (AI&ET) mission.
Information Systems Security Engineer (ISSE) ATR, LLCInformation Systems Security Engineer (ISSE)MarylandFull timeLead and contribute to security governance activities including security planning, assessment, risk analysis, risk management, certification support, awareness activities, security control assessment, and continuous monitoring and other IA program support functions. Ensure end-to-end implementation alignment by working closely with Systems Engineering, Test Engineering, and Integration teams so hardware and software architecture and implementations meet security requirements.
Information System Security Engineer Omega Enterprise SolutionsInformation System Security EngineerAnnapolis Junction, Maryland$120,000–$178,000 / yearA Bachelor’s degree in Computer Science, Information Assurance, Information Security System Engineering, or a related discipline from an accredited college or university and a technical certification such as Security +, or An Associate’s degree in Computer Science, Information Assurance, Information Security System Engineering, or a related discipline from an accredited college or university and a technical certification such as Security + plus two (2) years of general IT experience, or Four (4) years of general IT experience, at least one (1) of which must be information systems security experience. At the highest levels the ISSE may work independently or in a contractor lead technical role, developing system security architecture and requirements, defining processes and methodologies, and resolving complex technical issues or research problems with government oversight.
Software Engineer 2 Weeghman & Briggs LLCSoftware Engineer 2Jessup, MD$206,600–$229,600 / yearFull timeWhat You'll DoSupport mission-critical programs in secure government environmentsContribute ideas to improve processes, efficiency, and performanceWork directly with mission users to capture workflows, document operational decision points, and translate them into effective AI enabled capabilitiesDesign and implement solutions that may include LLM powered workflows, agent-based automation, or hybrid approaches depending on mission needsCollaborate with operators, analysts, developers, and mission leadership to ensure solutions integrate cleanly with existing systems, perform reliably in production, and adhere to the security and governance expectations of classified environmentsAnalyze user requirements to derive software design and performance requirements. Software Engineer 2Location: Annapolis Junction, MD | Onsite Clearance Required: TS/SCI with Polygraph Employment Type: Full-Time Salary Range: $206,600-$229,600Join a Growing Team at Weeghman & BriggsWeeghman & Briggs is seeking a motivated and mission-driven Software Engineer 2 to support critical government initiatives in Annapolis Junction, MD.Founded in 2016 by Anthony Jordan, Weeghman & Briggs specializes in delivering high-impact analytical services to Government Agencies and private organizations.
NewNetwork Engineer Quadrant IncNetwork EngineerAlexandria, VANetwork Engineer will support the installation, configuration, troubleshooting, maintenance, and optimization of network and cybersecurity technologies from vendors including Cisco Systems, Juniper Networks, Versa Networks, and other integrated security platforms. Assist with the design, implementation, and validation of network configuration prototypes including routers, switches, firewalls, servers, and automation frameworks.
Information Systems Security Engineer Level 1 (ISSE 1) ARSIEMInformation Systems Security Engineer Level 1 (ISSE 1)Columbia, MDSupport security authorization activities in compliance with NSA/CSS Information System Certification and Accreditation Process (NISCAP) and DoD Risk Management Framework (RMF), the NIST Risk Management Framework (RMF) process, and prescribed NSA/CSS business processes for security engineering designs. ARSIEM is currently looking for an Information Systems Security Engineer 1 to participate as a security engineering representative on engineering teams for the design, development, implementation, and/or integration of secure networking, computing, and enclave environments.
Information Systems Security Engineer Level 2 (ISSE 2) ARSIEMInformation Systems Security Engineer Level 2 (ISSE 2)Columbia, MDSupport security authorization activities in compliance with NSA/CSS Information System Certification and Accreditation Process (NISCAP) and DoD Risk Management Framework (RMF), the NIST Risk Management Framework (RMF) process, and prescribed NSA/CSS business processes for security engineering designs. ARSIEM is currently looking for an Information Systems Security Engineer 2 to participate as a security engineering representative on engineering teams for the design, development, implementation and/or integration of secure networking, computing, and enclave environments.
Systems Security Engineer (SSE), Journeyman KAIROS IncSystems Security Engineer (SSE), JourneymanPax River, MD$130,000–$145,000 / yearEstablished in July 2013, KAIROS, Inc. is a growing Woman Owned Small Business (WOSB) providing full life cycle Cybersecurity, Program Management, Engineering, Logistics, Additive Manufacturing, and Training and Education services focused on optimizing customers’ program performance and mission through proven methodologies and ethical practices. Lead IPT cybersecurity activities: Initiate, communicate, and coordinate with stakeholders and SMEs to address actions and RFIs required for IPT cybersecurity activities in a timely manner (no actions/RFIs to be stagnant for longer than 2 weeks).
Network Engineer Orbis Sibro, Inc.Network Engineerarlington, VAContinuous improvement of relevant systems, applications, infrastructure, and processes is a core responsibility, requiring the engineer to maintain a current understanding of emerging technologies and trends in cloud services, online media, storage solutions, and other data center technologies, with a focus on how these trends impact network architecture and security, particularly within SDN environments. Experience with TACLANEs, SolarWinds, IPAM, Kiwi Syslog Server, DHCP, ISE, ACI, NSX, TACACS, RADIUS, MAB, 802.1x, Event Manager Applet, Macro Creation, TFTP, SFTP, Splunk, Microsoft Visio, and Cisco Firewall Management Center.
Network Engineer - TS/SCI POLY Staffed4UNetwork Engineer - TS/SCI POLYAnnapolis Junction, MarylandWe are seeking a Network Engineer to support a high-impact mission with a defense client conducting vulnerability assessments on Major Weapons Systems. Our client offers a highly competitive and comprehensive benefits package designed to support your personal and professional growth, while promoting a healthy work-life balance.
Senior Systems Integration & Configuration Engineer MAG AerospaceSenior Systems Integration & Configuration EngineerAberdeen Proving Ground, Maryland$150,000–$195,000 / yearFull timePosition Summary: The Senior Systems Integration & Configuration Engineer serves as a technical leader for Configuration Management (CM), systems integration, documentation control, and cybersecurity readiness across TSIGS platforms—including Picketline, TSPRING, and SCAMP. This role requires expert-level understanding of platform Technical Data Packages (TDPs), the ability to accurately redline and manage technical documentation, and the engineering discipline to ensure configuration baselines remain authoritative and traceable.