NewLead, Information Security Systems Engineering L3Harris TechnologiesLead, Information Security Systems EngineeringChantilly, VA$127,500–$236,500 / yearAssist in systems/software engineering functions, to include creation of data flow diagrams, interface control documents, perform trade studies, and Static Application Security Testing (SAST) for Application Security and Development Secure Technical Implementation Guide (STIG) compliance using tools such as Fortify/Coverity and Gitlab as part of a DevSecOps Continuous Integration/Continuous Deployment (CI/CD) Pipeline, and generation of summary reports. Perform skills in implementing/assessing security controls, to include writing system security categorization memorandum, recommending appropriate security control overlays, define security control baseline based on defined system security categorization and approved security overlays, and apply security controls to computing/network nodes and verify implementation of security controls.
NewElectronic Security Systems Engineer Active Security Consulting LLCElectronic Security Systems EngineerSterling, VA$92,000–$138,500 / yearDevelop system architecture, engineering designs, and integration approaches for enterprise electronic security systems, including access control, intrusion detection, CCTV and video surveillance, alarm systems, communications equipment, and related network infrastructure. Active Security designs, develops, implements, and sustains advanced C5ISR and security solutions to enhance defense and mission capabilities, addressing threats across physical, electronic, cyber, and communications security for Mission Critical Commercial and U.S. Government clients.
NewInformation Systems Security Engineer System OneInformation Systems Security EngineerClarksburg, MD$180,000 / yearYou’ll be hands-on with the Risk Management Framework (RMF), Assessment & Authorization (A&A), ATO sustainment, control validation, continuous monitoring, and vulnerability/stig compliance efforts—partnering closely with security and technical teams. In this role, you’ll help build, secure, and maintain systems by applying cybersecurity engineering best practices across design, implementation, authorization, and ongoing compliance.
NewInformation System Security Officer PlanIT GroupInformation System Security OfficerReston, VAConducts assessments of threats and vulnerabilities, determines deviations from acceptable configurations or enterprise or local policy, assesses the level of risk, and develops and/or recommends appropriate mitigation countermeasures in operational and non-operational situations. Task description and/or any specific requirements: • Ability to manage responsibility for security assessments of a variety of applications or domains, to include cloud computing, and to manage several project/initiatives of large size, complexity, and risk.
NewSr. Manager SAP Digital Systems Integration & Sustainment L3Harris TechnologiesSr. Manager SAP Digital Systems Integration & SustainmentMillersville, MDResponsibilities include: collaborating with cross-functional teams, designing and delivering innovative solutions to align with L3Harris business objectives, ensuring system stability and performance for production systems, and contributing to continuous improvement initiatives. The salary range for this role in Colorado state, Hawaii, Illinois, Maryland, Minnesota, New York state, Cleveland Ohio, and Vermont is US$121,500.00 MIN - US$225,500.00 MAX.
NewSpecialist, Systems Engineering (Mission Protection) (TS/SCI w Poly) L3Harris TechnologiesSpecialist, Systems Engineering (Mission Protection) (TS/SCI w Poly)Springfield, VA$92,500–$171,500 / yearWith customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. The ideal candidate will apply operational security (OPSEC), counterintelligence, cyber defense, and threat principles to protect sensitive capabilities to ensure the survivability of U.S. assets in contested environments.
NewSpecialist, EO/IR Systems Engineer (Top Secret Clearance) L3Harris TechnologiesSpecialist, EO/IR Systems Engineer (Top Secret Clearance)Herndon, VA$92,500–$171,500 / yearWith customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. The candidate will need to work independently to resolve a wide range of engineering problems, requiring collaboration with all required disciplines (mechanical, optical, electrical, software, etc.).
NewLead Systems Engineering L3Harris TechnologiesLead Systems EngineeringMillersville, MD$127,500–$236,500 / yearExpertise in analyzing acoustic system design and performance, including ocean signal propagation and noise properties, sensor transduction, front-end signal conditioning, phased array design and performance, short- and long-haul telemetry, sonar and communications signal processing, and operator interfaces and data display. Experience planning at-sea activities, including defining sea test objectives and metrics, specifying acoustic sources and receivers, specifying at-sea recording and analysis for quality assurance, defining participant roles and responsibilities, defining platform capabilities, and managing data collection, analysis, and reporting.
NewSr. Specialist, Systems Engineering L3Harris TechnologiesSr. Specialist, Systems EngineeringMillersville, MD$106,500–$197,500 / yearCollaborate with other Systems Engineers in the development of work products, including: System Specifications, Logically Derived and Linked Requirements, Interface Definitions, System Diagrams, Systems Analyses, Trade Studies, and Detailed Designs. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.
NewSecurity Alarm Technician Securitas TechnologySecurity Alarm TechnicianLorton, VA$30–$40 / hourSecuritas Technology Corporation (STC) Technology and Solutions groups are experiencing tremendous success, and we currently have an Embedded Technician opening for team-oriented individuals possessing vocational training in electronics or electromechanical engineering. Performs scheduled, routing preventive maintenance on a variety of equipment/systems under contract agreement by inspecting, adjusting, cleaning, and calibrating systems and checking out equipment to ensure it’s in satisfactory working order.
NewExperienced Embedded Security Technician Securitas TechnologyExperienced Embedded Security TechnicianLorton, VA$30–$40 / hourSecuritas Technology Corporation (STC) Technology and Solutions groups are experiencing tremendous success, and we currently have an Embedded Technician opening for team-oriented individuals possessing vocational training in electronics or electromechanical engineering. Performs scheduled, routing preventive maintenance on a variety of equipment/systems under contract agreement by inspecting, adjusting, cleaning, and calibrating systems and checking out equipment to ensure it’s in satisfactory working order.
Systems Engineer IV Base One TechnologySystems Engineer IVArlington, VA$200,000–$220,000 / yearContractorSupporting a U.S. Government customer to provide support for onsite incident response to civilian Government agencies and critical asset owners who experience cyber-attacks, providing immediate investigation and resolution. Contract personnel perform investigations to characterize of the severity of breaches, develop mitigation plans, and assist with the restoration of services.
Sr. Systems Engineer - Microsoft 365 Trigyn Technologies IncSr. Systems Engineer - Microsoft 365Baltimore, MDTemporaryContractorFull timeExperience managing directory sync into Azure AD and deep knowledge of Azure AD Sync for Federation, authentication, SSO, and directory sync with Azure AD. Systems engineer – Microsoft 365 to develop solutions for e-mail and collaboration tools as well as handle day-to-day operations within the division.
NewSplunk Cyber Security SME PlanIT GroupSplunk Cyber Security SMEReston, VAManages knowledge objects (fields, extractions, tags, event types, lookups, workflow actions, aliases, macros, and so on) – through automations, scripting, management server functions; to include. This role demands deep expertise in Splunk system architecture, design, implementation, configuration, and operational support in a hybrid on-prem Unix/Linux and cloud-based environment.
Systems Engineer LeidosSystems EngineerTemple Hills, MD$107,900–$195,050If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. • The candidate should be a proactive leader and team player with strong communication, management, analytical, and problem solving skills; proven ability to thrive in environments that constantly embraces new technology.
Lead Systems Integration Engineer LeidosLead Systems Integration EngineerGlenwood, MD$87,100–$157,450TFDM program is a Federal Aviation Administration’s (FAA) NextGen program based on airport surface management provides that efficiencies for both the airport surface and terminal airspace by providing a new and comprehensive integrated surface traffic control and management system. June 3, 2026For 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.
Senior Systems Engineer LeidosSenior Systems EngineerLaurel, MD$131,300–$237,350This may include decomposing features into workable stories, prioritizing or reprioritizing items in the backlog for upcoming sprints, refining acceptance criteria and complexity estimates or removing tickets that are no longer relevant. Leidos has an exciting opening for you, as our next TS/SCI cleared Senior Systems Engineer, to play a critical role with design, engineering, development and deployment of software supporting the DIA-NMEC (National Media Exploitation Center) DOMEX Technology Platform (DTP).
Lead Systems Engineer LeidosLead Systems EngineerWashington, DC$107,900–$195,050If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. June 22, 2026For 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.
Model-Based Systems Engineer LeidosModel-Based Systems EngineerRockville, MD$69,550–$125,725Bachelor’s degree in engineering or related field with 2+ years of prior relevant experience or a master’s degree with at least a year experience in one of these areas: systems engineering, software engineering, test engineering or related field. March 30, 2026For 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.
Senior Model Based Systems Engineer LeidosSenior Model Based Systems EngineerAlexandria, VA$107,900–$195,050Bachelor’s degree in engineering or related field with 8+ years of prior relevant experience or a master’s degree with 6+ years of experience in one of these areas: systems engineering, software engineering, test engineering or related field. Your role will directly support our diverse portfolio of programs through a combination of requirements and design architecture analysis; MBSE Model development; mentoring junior engineers and assisting technical leadership develop briefing material.