NewCyber Security Engineer III System OneCyber Security Engineer IIISpringfield, VA$135,000–$135,000 / hourThe ideal candidate will have hands on experience in incident response, CSOC or SOC operations, digital forensics, malware analysis, indicator development, and cyber incident reporting within a DoD, Intelligence Community, or federal cyber environment. • Experience supporting cyber incident response, CIRT, CSOC, SOC, DFIR, threat hunting, or defensive cyber operations.
NewMid Level Cyber Security Engineer System OneMid Level Cyber Security EngineerReston, VA$68.18–$68.18 / hourSolve complex problems and answer routine questions related to installation, operation, configuration, and customization of cybersecurity software. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
NewSr Cyber Security Engineer System OneSr Cyber Security EngineerReston, VA$83.33–$83.33 / hourStrong knowledge of Kubernetes and container security, including Amazon EKS, RBAC, network policies, image security, and container hardening. Familiarity with security frameworks such as NIST CSF, NIST 800-53, ISO 27001, SOC2, CIS Benchmarks, MITRE ATT&CK.
NewIT- Cyber Security Architect/ Engineer III PlanIT GroupIT- Cyber Security Architect/ Engineer IIIFalls Church, VASecuring AI Workflows: Design security frameworks for the end-to-end AI lifecycle, including securing data ingestion, protecting model weights, and implementing "Guardrail" architectures for Large Language Models (LLMs). • AI-Enhanced Pipeline Security: Architect and maintain automated CI/CD pipelines that utilize AI/ML models for static and dynamic analysis (SAST/DAST) to identify complex vulnerabilities that traditional rule-based tools miss.
NewCyber Security Systems Engineer LeidosCyber Security Systems EngineerAlexandria, VA$107,900–$195,050The Cyber Security Systems Engineer will work within a team of engineers, developers, and system administrators adding new capabilities to our enclaves, as well as ensuring the existing systems are secure and performing as intended. If 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.
NewSenior Cyber AI Operations Engineer System OneSenior Cyber AI Operations EngineerWashington, DCThe ideal candidate will have experience working with a variety of AI technologies and models and will have exceptional working knowledge on the architecture and design requirements to implement AI solutions that support cybersecurity operations (e.g., intrusion detection, intrusion prevention, incident response, vulnerability analysis, security tests and evaluations, etc.). • Design, implement, deploy, maintain, and evolve AI-enhanced cybersecurity solutions that support a broad range of functions including intrusion detection, intrusion prevention, incident response, insider risk, vulnerability analysis, threat hunting, cyber threat intelligence, and security test and evaluation activities.
NewData Security Engineer System OneData Security EngineerVienna, VAProvide technical guidance and collaboration with other Cyber Security Engineers supporting technologies within designated area of focus (Data Scanning). Establish and maintain supporting documentation (architecture/data flow diagrams, runbooks, ServiceNow tickets, user stories and tasks).
NewAI-Enabled Cyber Capabilities Developer Johns Hopkins Applied Physics Laboratory (APL)AI-Enabled Cyber Capabilities DeveloperLaurel, MD$105,000–$290,000It requires designing AI-native architectures, orchestrating tool-using agents, and rapidly iterating on prototypes that demonstrate functional, outcome-driven impact. The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges.
NewReverse Engineer / Cyber Capability Engineer Johns Hopkins Applied Physics Laboratory (APL)Reverse Engineer / Cyber Capability EngineerLaurel, MD$100,000–$245,000We have custom facilities tailored to specific classes of systems including vehicles, telecommunications/network infrastructure, and industrial systems as well as general reverse engineering labs. Our team specializes in software and hardware reverse engineering, vulnerability research, and developing proof-of-concept offensive cyber capabilities with a focus on embedded systems.
NewSenior Reverse Engineer / Cyber Capability Engineer Johns Hopkins Applied Physics Laboratory (APL)Senior Reverse Engineer / Cyber Capability EngineerLaurel, MD$105,000–$290,000We have custom facilities tailored to specific classes of systems including foreign materiel, telecommunications/network infrastructure, and industrial systems as well as general reverse engineering labs. The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges.
Information Security Manager Base One TechnologyInformation Security ManagerArlington, VA$100,000–$130,000 / 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 the severity of breaches, develop mitigation plans, and assist with the restoration of services.
NewSecurity Operations Center (SOC) Analyst (Mid) LeidosSecurity Operations Center (SOC) Analyst (Mid)Baltimore, MD$69,550–$125,725Significant experience performing analysis of log files from a variety of sources, including individual host logs, network traffic logs, firewall logs, or intrusion prevention/detection logs. Formal IT Security/Network Certification such as SANS GIAC Certified Intrusion Analyst (GCIA), SANS GIAC Network Forensic Analyst (GNFA) or SANS GIAC Certified Incident Handler (GCIH).
NewSecurity Operations Analyst with Python System OneSecurity Operations Analyst with PythonWashington, DCRemote$85,000–$95,000 / hourSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Familiarity with Shodan, Censys, VirusTotal, domain/IP enrichment, or similar open-source cyber intelligence tools.
TIER III Analyst Foxhole TechnologyTIER III AnalystFt. Meade, MD$100,000–$120,000 / yearRequirements of position: Think analytically, effective verbal and written communication skills, make decisions, observe/remember details, interpret data, concentrate on tasks, adjust to change, handle stress/emotions. Our talented employee-owners provide agile, scalable services and solutions that solve operational gaps, operate critical systems, and protect and secure the enterprise – across the organization and around the world.
NewFormal Verification and Software Assurance Engineer Johns Hopkins Applied Physics Laboratory (APL)Formal Verification and Software Assurance EngineerLaurel, MD$100,000–$245,000Experience with (1) Static Analysis tools such as Coverity and Klockwork, (2) Dynamic Analysis tools such as Valgrind, libFuzzer, and Java Pathfinder, (3) Symbolic Execution Engines such as KLEE and angr, (4) Model Checkers such as TLA+ and SPIN, (5) SMT Solvers such as Z3, CVC5 and MathSAT (6) other Automated Theorem Provers such as ACL-2 and GnatProve, (7) Interactive Theorem Provers such as Lean and Rocq, and any other formal methods tools. Experience with formal methods tools and techniques, such as language safety properties, symbolic execution, abstract interpretation, model checking, automated and interactive theorem proving, programming language analysis and design, type theory, static source code analysis, and formal logic.
NewLead Security Engineer with TS/SCI Poly LeidosLead Security Engineer with TS/SCI PolyAnnapolis Junction, MD$154,050–$278,475The selected individual will lead all security engineering efforts for a large, complex network environment with geographically distributed systems; and will manage a team of Information Systems Security Officers (ISSOs) and Information Systems Security Engineers (ISSEs), providing technical leadership and direction to meet program requirements. At least twelve years of experience with defense-in-depth principals/technology (including access control, authorization, identification and authentication, public key infrastructure, network and enterprise security architecture) and applying risk assessment methodology to system development.
NewSenior Information Systems Security Officer (ISSO-3) LeidosSenior Information Systems Security Officer (ISSO-3)Annapolis Junction, MD$107,900–$195,050Seeking a self-starting, motivated individual to be the Information System Security Officer supporting Computer Network Operations with maintaining compliance and strengthening the security posture of critical mission systems via the Risk Management Framework; will be responsible for 6 System Security Plans (SSPs). An associate’s degree or 18 semesters hours of military coursework/training in a computer-related field plus 10-years of relevant experience or high school diploma/GED plus 12-years of relevant experience may be considered.
NewDevSecOps Engineer CredenceDevSecOps EngineerMcLean, VAThe position focuses on enabling reliable and scalable software delivery by building and optimizing CI/CD pipelines, infrastructure automation, and deployment workflows, while improving developer experience, release velocity, application quality, and system reliability across multi-stack environments. This role supports a variety of modern applications, including backend services, frontend applications, and data pipelines, with a strong emphasis on pipeline engineering, Infrastructure as Code (Terraform), and cloud-native deployments.
NewLead, Systems Engineer - Mission Protection L3Harris TechnologiesLead, Systems Engineer - Mission ProtectionSpringfield, VAThe ideal candidate demonstrates strong leadership, technical depth in threat-informed engineering, and the ability to integrate Mission Protection requirements into operational planning, system architecture, and lifecycle activities. The selected candidate will apply operational security (OPSEC), counterintelligence, cyber defense, and threat analysis principles to protect critical systems and ensure the survivability and resilience of U.S. assets in contested and degraded environments.
NewSpecialist, Systems Engineer - Watch Officer L3Harris TechnologiesSpecialist, Systems Engineer - Watch OfficerSpringfield, VA$90,500–$168,500 / yearActively participate in daily operations stand-up meetings to provide updates on ongoing activities, highlight key operational priorities, and address any challenges or risks impacting mission success. Possess knowledge of, or experience with, space operations, including managing and monitoring satellite systems, performing telemetry analysis, and conducting mission-critical activities such as orbital adjustments, payload operations, and anomaly resolution.
NewBusiness Process Re-engineering Specialist - Junior Level CredenceBusiness Process Re-engineering Specialist - Junior LevelMcLean, VACredence is seeking a Business Process Re-engineering Specialist – Junior Level to provide facilitation, training, methodology development and evaluation, process reengineering across all phases, identifying best practices, change management, business management techniques, organizational development, activity and data modeling, or information system development methods and practices, and supervision of business process reengineering. Computer Science, Engineering, or Information Systems/Technology) and a specific logistics function (e.g., finance, supply, contract administration, transportation and operations research) and first-hand knowledge of the following: DoD/Component policies.
NewISSO LeidosISSOAlexandria, VA$107,900–$195,050will assist with tracking, documenting, and remediating vulnerabilities identified by the customer’s Cyber Security division and direct remediation efforts for system administrator staff, provide status updates to government and program leadership, and update relevant RMF packages as required. NIST, RMF, Common Criteria, DoD, and Intelligence Community Directives (ICDs)) and works to mitigate risks by applying security controls effectively to maintain an acceptable degree of operational risk across multiple enclaves in an enterprise environment.
NewSystems Integration Engineer (NDA-2) LeidosSystems Integration Engineer (NDA-2)Fort Meade, MD$73,450–$132,775Bachelor's degree plus 5-years of relevant experience, or master’s degree plus 3-years of relevant experience or an associate’s degree plus 7-years of relevant experience or high school diploma/GED plus 9-years of relevant experience may be considered. Relevant experience must be in computer or information systems design/development, programming, information/cyber/network security, vulnerability analysis, penetration testing, computer forensics, information assurance and/or systems engineering.
NewSystems Engineer LeidosSystems EngineerAlexandria, VA$131,300–$237,350If 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. July 1, 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.
NewSenior Software Engineer LeidosSenior Software EngineerGaithersburg, MD$107,900–$195,050Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world. Leidos Intel Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world.
NewPrincipal Software Engineer (SWE-4) LeidosPrincipal Software Engineer (SWE-4)Annapolis Junction, MD$131,300–$237,350Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. Seeking an experienced and talented software developer to join an existing team that develops and manages software products and tools integral to discovering new mobile data related to the mission.
NewAI Systems Engineer (SE-3) LeidosAI Systems Engineer (SE-3)Fort Meade, MD$107,900–$195,050The engineer will work closely with mission stakeholders to build agentic AI solutions that automate research, analysis, reporting, and data workflows while creating intuitive natural language interfaces that make complex Knowledge Graphs accessible to users. Desirable Skills: Experience creating interactive visualizations that transform complex data science insights into compelling, actionable intelligence for end users and decision-makers.
NewSr Appian Platform Engineer / Architect LeidosSr Appian Platform Engineer / ArchitectAlexandria, VA$131,300–$237,350The Digital Modernization Sector at Leidos is seeking a dynamic Sr Appian Platform Engineer / Architect to support cloud modernization initiatives for the United States Coast Guard (USCG) at Command, Control, Communication, Computer, Cyber, and Intelligence Service Center (C5ISC) in the Alexandria, VA area. The ideal candidate will possess deep expertise in the Appian low-code platform along with hands-on experience in other low-code/no-code technologies such as ServiceNow, Microsoft Power Platform, Pega, Salesforce, Mendix, OutSystems, or similar enterprise automation platforms.
Cyber Engineer - 27644 Company ConfidentialCyber Engineer - 27644Annapolis Junction, MD$128,887–$175,000Full time9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience. HII Mission Technologies has a need for a Cyber Engineer who will be responsible for guiding systems through the full Risk Management Framework (RMF) lifecycle and ensuring all security controls are properly designed, implemented, documented, and assessed.
Cyber Software Engineer Company ConfidentialCyber Software EngineerAnnapolis Junction, MD$130,000–$180,000Full time5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience. Our capabilities in cybersecurity, network architecture, reverse engineering, software and hardware development uniquely enable us to support sensitive missions for the U.S. military and federal agency partners.
Cyber Tools Administrator - Majestic Company ConfidentialCyber Tools Administrator - MajesticFort Belvoir, VA$85,018–$160,000Full timeImplementing and maintaining the organization's cybersecurity toolsets, such as endpoint security solutions (ESS), malware protection, network detection & response (NDR), and endpoint detection & response (EDR) . As a Cyber Tools Administrator, you'll play a pivotal role in protecting our digital assets and strengthening our security posture through proactive monitoring, analysis, and implementation of cutting-edge security solutions.
Cyber Product Trainer (Hybrid) - 26419 Company ConfidentialCyber Product Trainer (Hybrid) - 26419Columbia, MDFull timeEnlighten, honored as a Top Workplace from USA Today, is a leader in big data solution development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Develop engaging training materials in a variety of formats including web-based training, videos, slides, instructor/participant guides, knowledge checks, practical exercises/labs, use cases and best practices.
Computer/Network Security Systems Specialist (Lead) Company ConfidentialComputer/Network Security Systems Specialist (Lead)Fort Belvoir, VA$106,681–$246,980Full timeWill analyze site survey reports, recommend network modernization upgrades, craft network architectures, and assist operations leads in creating deployment plans and executing capability roll outs. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
Cognizant/Alternate Cognizant Security Officer Company ConfidentialCognizant/Alternate Cognizant Security OfficerSuitland, MD$53,937–$114,395Full timeOur capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
Security Control Assessor (SCA) Company ConfidentialSecurity Control Assessor (SCA)Springfield, VA$102,831–$150,000Full timeEngineer Info Assurance 3: 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience. Engineer Info Assurance 2: 2 years relevant experience with Bachelors in related field; 0 years experience with Masters in related field; or High School Diploma or equivalent and 6 years relevant experience.
Jr. Contract Security Program Officer (CSPO) Company ConfidentialJr. Contract Security Program Officer (CSPO)Washington, DC$59,023–$85,000Full timeThe CSPO, as the liaison, must effectively communicate with senior leaders and be knowledgeable of all security pillars: Physical security, Industrial Security, Information Security, personnel security, and Cyber Security; Development of Program Protection Plans, OPSEC Plans, SOPS, SSAs and Transportation plans. Industrial Security Analyst 2 : 3 years relevant experience with Bachelors in related field; 1 year relevant experience with Masters in related field; or High School Diploma or equivalent and 7 years relevant experience.
Software Security Engineer (Hybrid) - 26911 Company ConfidentialSoftware Security Engineer (Hybrid) - 26911Columbia, MDFull timeMust have at least 15 years of experience in Systems/Software Engineering with a Bachelor's degree in technical discipline (i.e. computer science, engineering, mathematics, etc.); 13 years relevant experience with Masters in related field; or High School Diploma or equivalent and 19 years relevant experience. Enlighten, honored as a Top Workplace from USA Today, is a leader in big data solution development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science.
Senior Cyber Security Engineer Cooley LLPSenior Cyber Security EngineerVA$145,000–$210,000 / yearCompetencies: • Exceptional customer service skills • Excellent analytical, problem-solving, customer service, project management and communication skills • Goal-oriented • Excellent decision making, integrity and working with IT management, business users and staff • Excellent oral and written communication skills, including technical and user documentation • Strong organizational skills • Ability to work independently and under high pressure with tight schedules and deadlines • Ability to interact well with all levels of business professionals • Excellent active listening skills • Flexible and patient with process development/execution and adherence to instruct project management practices • Capable of grasping new concepts quickly and without prior experience • Detail-oriented • Ability to multi-task and work in fast-paced environment • Ability to interact and coordinate with several teams to achieve objectives • Ability to solve problems independently and simultaneously, effectively managing multiple tasks • Professional demeanor at all times. Preferred: • Bachelor's Degree in Information Technology or Computer Information Systems • CISSP or equivalent certifications and/or experience • Experience working with the following products: • Palo Alto Network's Firewalls and Prisma Access • Tenable Vulnerability Scanner • VMWare • Cyberhaven Data Loss Prevention • Proofpoint Email Gateway and Anti-Spam • Forensic Tools • S/MIME email encryption • Delina Secret Server • Crowdstrike • Google SecOps SIEM • Two factor authentication technologies • Penetration testing tools • Patch management systems.
NewCyber Security Engineer (Mid Level) ICONMA, LLCCyber Security Engineer (Mid Level)Reston, VA$63.18–$68.18 / hourThe incumbent is required to immediately disclose any debarment, exclusion, or other event that makes them ineligible to perform work directly or indirectly on Federal health care programs. Familiarity with application security testing tools such as Checkmarx, Contrast Security, TideLift, Burp Suite, OWASP Dependency Check, Fortinet or similar platforms.
Cyber Security Engineer TEEMACyber Security EngineerWashington DC, DC$55–$62Bachelor’s degree in Cybersecurity, IT, Computer Science, or related field, or equivalent experience (3+ years in security engineering/operations and 4+ years in incident response). This role is ideal for a cybersecurity professional who thrives in a fast-paced environment, combining incident response expertise with forward-looking security engineering.
Jr Cyber Security Engineer Chenega CorporationJr Cyber Security EngineerVienna, VAAbility to provide technical assistance and support over the phone; good phone skills, professional demeanor, and previous customer service experience strongly desired. Proficient with Microsoft Office Applications, and experience working in a home office setting, as well as the ability to train end users on frequently asked technical issues.
Senior Cyber Security Engineer Chenega CorporationSenior Cyber Security EngineerVienna, VAAbility to provide technical assistance and support over the phone; good phone skills, professional demeanor, and previous customer service experience strongly desired. Proficient with Microsoft Office Applications, and experience working in a home office setting, as well as the ability to train end users on frequently asked technical issues.
Mid Cyber Security Engineer Chenega CorporationMid Cyber Security EngineerVienna, VAAbility to provide technical assistance and support over the phone; good phone skills, professional demeanor, and previous customer service experience strongly desired. Proficient with Microsoft Office Applications, and experience working in a home office setting, as well as the ability to train end users on frequently asked technical issues.
Cyber Security Engineer (High Level Clearance Required) ICFCyber Security Engineer (High Level Clearance Required)Fort Meade, MarylandPay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position. Intermediate knowledge of Security Onion or Splunk, including interface requirements, scalability considerations, and enterprise configurations; understanding of VMware port properties and their relationship to sensor ports and promiscuous mode.
Cyber Security Engineer Technical Lead Lockheed Martin CorpCyber Security Engineer Technical LeadSpringfield, VAFurthermore, they will conduct cybersecurity test and evaluation of hardware and/or software designs to verify and validate compliance with defined specifications and requirements, and employ cyber security processes, methods, techniques and tools and assure their consistent application. You will interface with our Operations, Development, Deployment, and Systems Engineering teams, and will help to derive innovative solutions to complex technical problems to provide our customers with a secure system and new capabilities.
Expert Level Cyber Security Engineer Peraton IncExpert Level Cyber Security EngineerSpringfield, VA$146,000–$234,000 / yearExperience engineering Cyber Security solutions using Cloud Based Technology such as: Service Orientated Architecture (SOA), On-demand self-service, Broad network access, Resource pooling, Rapid elasticity, Measured Service, Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan.
Cyber Security Engineer Leidos Holdings IncCyber Security EngineerBethesda, MD$69,550–$125,725 / yearWe leverage cloud-based computing, artificial intelligence (Al), machine learning (ML) and cross-domain transfer systems to provide cutting edge data exploitation, enrichment, triage, and analytics capabilities to Defense and Intelligence Community members. 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.
NewCyber Security Engineer (Mid Level) IconmaCyber Security Engineer (Mid Level)Reston, VA$63.18–$68.18 / hourThe incumbent is required to immediately disclose any debarment, exclusion, or other event that makes them ineligible to perform work directly or indirectly on Federal health care programs. Familiarity with application security testing tools such as Checkmarx, Contrast Security, TideLift, Burp Suite, OWASP Dependency Check, Fortinet or similar platforms.