Security Operations Center Engineer III MartinFedSecurity Operations Center Engineer IIIArlington, VAFull timeThe SOC Engineer III will collaborate with cybersecurity teams, system administrators, network engineers, and organizational leadership to strengthen the organization's security posture and ensure continuous monitoring of critical systems and infrastructure. JOB OVERVIEW:MartinFed is seeking a highly experienced Security Operations Center (SOC) Engineer III to provide advanced cybersecurity monitoring, detection, analysis, and incident response support within a complex enterprise environment.
Security Infrastructure Engineer Leidos Holdings IncSecurity Infrastructure EngineerAlexandria, VA$107,900–$195,050 / yearYour primary focus will be transforming manual workflows into automated pipelines by leveraging Python, developing robust API integrations, and exploring AI/LLM orchestration to rapidly scale threat detection and response capabilities. Design, build, and integrate custom APIs to connect disparate cybersecurity tools (SIEM, IDS/IPS, Netflow, and threat intelligence feeds) into a cohesive, orchestrated ecosystem.
Cybersecurity Engineer - Junior JCS Solutions LLCCybersecurity Engineer - JuniorBethesda, MD$95,000–$120,000 / yearJob Summary The Cyber Security Engineer (Junior) supports the National Institute for Child Health and Human Development (NICHD), Office of Information Technology (OIT), in maintaining and improving the organization’s cybersecurity posture. This position plays a key role in protecting the confidentiality, integrity, and availability of federal systems by supporting security tools, investigating potential incidents, and ensuring compliance with NIH and HHS policies.
NewInformation Systems Security Officer - TS/SCI with Polygraph General Dynamics Information TechnologyInformation Systems Security Officer - TS/SCI with PolygraphMcLean, VirginiaTo 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. Construct thorough and complete security documentation to include, but not limited to, System Security Plans (SSPs), Plan of Actions and Milestones (POA&Ms), and any other artifacts to support the Body of Evidence (BOE), for sponsor's approval.
Information System Security Officer Rincon Research CorpInformation System Security OfficerChantilly, VA$100,000–$140,000 / yearAt Rincon Research Corporation, our primary business is innovating, developing, and fielding digital signal processing (DSP) products and services for the United States Defense and Intelligence Communities in support of national security. Perform Continuous Monitoring and reporting of identified security controls including audit log reviews, system compliance assessments, vulnerability scans, and account activity for privileged and general users.
Communication Security Operations Lead Science Applications International CorpCommunication Security Operations LeadSpringfield, VA$160,001–$200,000 / yearThe scope encompasses the entire high-assurance ecosystem lifecycle (KMI and INE solutions, secure warehouse logistics) with a heavy focus on spearheading the adoption of Over-the-Network Keying (OTNK), transitioning to Post-Quantum Cryptography (PQC) solutions, and deploying next-generation High-Assurance Inline Network Encryption (HAIPE) and Next Generation Load Devices (NGLD). This position oversees a multidisciplinary team-including network and systems engineers, security analysts, COMSEC auditors, logistics specialists, and data engineers-ensuring the delivery of robust, compliant, and software-driven cryptographic solutions.
Cyber Defense Incident Responder (Tier 2) Resource Management Concepts, Inc.Cyber Defense Incident Responder (Tier 2)Quantico, VA$120,000–$130,000The selected applicant will perform a variety of activities including but not limited to: Investigate Cyber Incidents: Perform in-depth analysis of network and host artifacts (e.g., logs, system images, packet captures) to identify root causes, operational impacts, and enable rapid remediation of threats. RMC is hiring a dedicated Cyber Defense Incident Responder (Tier 2) to join our team and provide 24/7/365 cybersecurity monitoring and detection for the government enterprise network.
Information System Security Professionals Isso Isse Leidos Holdings Inc.Information System Security Professionals Isso IsseFort Meade, MD$131,300–$237,350 / yearOur 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. Apply system security engineering expertise in areas such as system security design, life cycle, risk management, and security testing, using industry system security engineering methodologies.
Tech Cyber Managing Consultant Guidehouse IncTech Cyber Managing ConsultantMcLean, VANote that Guidehouse will never charge a fee or require a money transfer at any stage of the recruitment process and does not collect fees from educational institutions for participation in a recruitment event. All communication regarding recruitment for a Guidehouse position will be sent from Guidehouse email domains including @guidehouse.com or guidehouse@myworkday.com.
Network Security Engineer CredenceNetwork Security EngineerMcLean, VA$130,000–$155,000 / yearSupport audit readiness and compliance for CMMC Level 2 and SOC 2, including maintaining network-layer controls in the System Security Plan (SSP), providing firewall and network evidence for assessments, and contributing to ISSO functions as needed. Experience with network monitoring and management platforms such as PRTG Network Monitor, network documentation tools such as NetBox, and network automation and configuration management tools such as Ansible.
Cyber - Cyber Security Specialist Progression IncCyber - Cyber Security SpecialistHerndon, VABachelor's degree in Cyber Security, Information Technology, Computer Science, or related field preferred; additional relevant experience may substitute for degree. Experience working with DoD Risk Management Framework (RMF) and ATO processes.
Cyber Systems Architect, Senior Advisor PeratonCyber Systems Architect, Senior AdvisorHerndon, Virginia$135,000–$216,000 / yearFull timeArchitect 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.
Senior Cyber Security Analyst Ampcus IncorporatedSenior Cyber Security AnalystWashington, DC$60–$75 / hourThe role coordinates with both the Information Technology (IT) team and Operational Team (OT) to ensure individuals have the appropriate access to resources, monitor vulnerabilities and threats, collects intelligence, assists in disaster recovery operations, and in updating cyber controls with intelligence obtained from third-party providers. Analyzes security events and incidents within the Computing and Network environment, investigating root causes, assessing impact, and coordinate and document response actions to mitigate risks and minimize operational disruptions.
Information Systems Security Engineer (ISSE) - SME/Cloud-based, Senior Advisor - TS/SCI w/poly PeratonInformation Systems Security Engineer (ISSE) - SME/Cloud-based, Senior Advisor - TS/SCI w/polyWashington, D.C.$176,000–$282,000 / yearFull timeBenefits: Peraton offers enhanced benefits to employees supporting 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 eligibility to participate in an attractive bonus plan. Serve as a principal technical advisor on cybersecurity, bringing subject-matter expertise to risk analysis, incident response, system remediation, and audit support efforts.
Manager, Cyber Defense DoorDash IncManager, Cyber DefenseWashington D.C., DC$193,800–$285,000 / yearWe value a diverse workforce - people who identify as women, non-binary or gender non-conforming, LGBTQIA+, American Indian or Native Alaskan, Black or African American, Hispanic or Latinx, Native Hawaiian or Other Pacific Islander, differently-abled, caretakers and parents, and veterans are strongly encouraged to apply. At DoorDash, our mission to empower local economies shapes how our team members move quickly, learn, and reiterate in order to make impactful decisions that display empathy for our range of users-from Dashers to merchant partners to consumers.
Information Systems Security Engineer Level 1 GRVTYInformation Systems Security Engineer Level 1Fort Meade, MD$154,000–$164,000 / yearSystems running Red Hat, CentOS, SUSE and custom vendor-specific operating systems, with high-speed shared storage (lustre, and gpfs as examples), along with dedicated high-speed low latency network interconnects like Infiniband and Slingshot. This team works across organizations to provide for planning, delivery, and integration of new or additional HPC sustainment capabilities that include HPC systems, servers (cluster, SMP, MPP and SPD), and parallel file systems.
Cyber Eviction Lead Nightwing Intelligence SolutionsCyber Eviction LeadSterling, Virginia$122,000–$253,000 / yearKnowledge of different operational threat environments (e.g., first generation [script kiddies], second generation [non nation-state sponsored], and third generation [nation-state sponsored])- Knowledge of system and application security threats and vulnerabilities (e.g., buffer overflow, mobile code, cross-site scripting, PL/SQL and injections, race conditions, covert channel, replay, return- oriented attacks, and malicious code). - Skilled in identifying different classes of attacks and attack stages- Understanding of system and application security threats and vulnerabilities- Understanding of proactive analysis of systems and networks, to include creating trust levels of critical resources.
Incident Response Expert / Cyber Eviction Analyst Node.DigitalIncident Response Expert / Cyber Eviction AnalystArlington, VAYou will serve as a subject matter expert in cyber incident response, applying deep knowledge of threat actor tools, techniques, and procedures to identify, contain, and eradicate threats. Required Qualifications: Bachelor’s degree in Computer Science, Cyber Security, Computer Engineering, or a related field; or a high school diploma with 10+ years of technical experience.
Cyber Eviction Analyst - Principal Nightwing Intelligence SolutionsCyber Eviction Analyst - PrincipalSterling, Virginia$122,000–$253,000 / yearKnowledge of different operational threat environments (e.g., first generation [script kiddies], second generation [non nation-state sponsored], and third generation [nation-state sponsored])- Knowledge of system and application security threats and vulnerabilities (e.g., buffer overflow, mobile code, cross-site scripting, PL/SQL and injections, race conditions, covert channel, replay, return- oriented attacks, and malicious code). - Skilled in identifying different classes of attacks and attack stages- Understanding of system and application security threats and vulnerabilities- Understanding of proactive analysis of systems and networks, to include creating trust levels of critical resources.
Security Engineer / Network Engineer (Dod | AWS Govcloud) CredenceSecurity Engineer / Network Engineer (Dod | AWS Govcloud)McLean, VA$120,000–$150,000 / yearCredence has an immediate opening for a highly skilled Security Engineer / Network Engineer to support and secure a mission-critical AWS GovCloud environment within a DoD-aligned ecosystem. Our AI, cloud, cyber, and modernization solutions save agencies thousands of hours, safeguard national security, and strengthen health and humanitarian missions worldwide.