NewElectronic Security Systems Engineer Active Security Consulting LLCElectronic Security Systems EngineerSterling, VADevelop 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.
Senior System Engineer (Email Security Migration) System OneSenior System Engineer (Email Security Migration)Washington, DCResponsibilities : • Lead the migration from on-premises IronPort email security appliances to Proofpoint cloud-based email security solution, ensuring seamless transition with minimal disruption to email services. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
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.
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.
NewSecurity Technician Securitas TechnologySecurity 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.
NewSr. Systems Engineer- Cloud Infrastructure Engineering VisaSr. Systems Engineer- Cloud Infrastructure EngineeringAshburn, VA$110,700–$171,800 / yearYou will be part of a team of systems DevOps engineers/architects who adopt, integrate & engineer industry leading technologies and management solutions for the container platform, focusing on Kubernetes, microservices architecture, and cloud technologies. Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.
NewSystems Engineer, Linux and AI VisaSystems Engineer, Linux and AIAshburn, VA$88,000–$136,900 / yearAs an Associate Systems Engineer, you’ll join a global team that plans, implements, and supports secure, resilient endpoints and platforms—partnering closely with vendors and global support groups to deliver nimble, client‑centric solutions. Deploy models as APIs or services, integrate with existing applications, implement and tune orchestration around tools and plugins (MCP‑style connectors, function‑calling schemas, vector DBs), including prompt design, safety/guardrails, and evaluation of agent behavior.
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.
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.
Junior Security Control Assessor System OneJunior Security Control AssessorBethesda, MD$100,000 / yearYou’ll work under a senior assessor and help evaluate security control implementation, validate evidence, and document results in alignment with NIST Risk Management Framework (RMF) and NIST SP 800-53 Rev. Education: Bachelor’s in Cybersecurity, IT, Computer Science, Information Systems (or similar) OR 4 additional years of relevant experience in lieu of a degree.
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.
Systems Integration Engineer LeidosSystems Integration EngineerMount Airy, 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 25, 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 EngineerBuckeystown, MD$131,300–$237,350As the Senior System Engineer, you will perform and manage the full spectrum of systems engineering tasks to include requirements analysis, feature, system and interface design, system integration, system testing, as well as working with the SE team in support of Model Based Systems Engineering (MBSE) and all associated documentation. As a senior member of the team, you bring deep expertise in Systems Engineering (SE) and will work closely with Systems Engineers, Software Engineers, Architects as well as Government counterparts on the following key tasks:
Lead Systems Engineer LeidosLead Systems EngineerBurke, VA$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 EngineerWashington, DC$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.
Mid-Level Security Control Assessor System OneMid-Level Security Control AssessorBethesda, MDRemote$135,000–$140,000 / yearRequirements Bachelor's degree in Cybersecurity, Information Technology, Computer Science, Information Systems, or related discipline, or four (4) additional years of relevant experience. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
Information Systems Technician U.S. NavyInformation Systems TechnicianDumfries, VAKey Responsibilities As an Information Systems Technician, design, operate, secure, and restore networks, servers, and communication systems that support naval operations; as a Cryptologic Technician Networks specialist, conduct offensive and defensive cyber operations, investigate and track adversary activity, and help protect Navy networks and critical systems; as an Intelligence Specialist, collect and analyze information on adversaries, environments, and weather and create intelligence products and briefings for commanders. Pathways, Training & Advancement Recruit Training followed by Class A School in an information warfare specialty, such as IT or CTN at information warfare training sites and IS at intelligence training commands; advanced C schools and follow on training in areas such as cyber operations, network defense, digital forensics, signals analysis, targeting, imagery, language, and mission systems; progressive advancement based on qualifications, performance, and warfare pins such as Information Warfare and platform specific warfare designations.