Lead Firewall Engineer LeidosLead Firewall EngineerWashington DC, District of ColumbiaSeptember 3, 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. Through the J6 Penetration Handling, Incident, System Health (PHISH) support services task order on the GSM-O contract, we provide IT products, services and solutions to the Pentagon and other DoD offices and agencies for them to meet mission and business requirements.
Threat Management Specialist – Tier1 (Hybrid) A.C. CoyThreat Management Specialist – Tier1 (Hybrid)Falls Church, VirginiaResponsibilities: Receive and triage security alerts from multiple sources, including SIEM platforms, CSOC mailboxes, and direct phone notifications, following established playbooks, SOPs, and incident response procedures. Analyze and interpret outputs from SIEM platforms, CSOC mailboxes, and other security monitoring sources to identify potential security incidents and determine appropriate response actions.
Cyber Event Red Team Planner Raydon CorpCyber Event Red Team PlannerHanover, MD$120,000–$170,000 / yearThe Cyber Event Red Teamer will provide direct support to the Plans and Exercise Lead for the Joint Cyber Training Enterprise, one of the largest leading cyber training and operations platforms in the world. Since 2004, CESI has been at the forefront of developing, maintaining, and integrating simulation-based training, serious gaming, technical services, training and other support in live, virtual, constructive, and gaming (LVCG) domains.
Technical Program Manager Cyber, Public Sector Scale AI IncTechnical Program Manager Cyber, Public SectorColumbia, MD$199,200–$249,000 / yearOversee end-to-end creation and delivery of high-quality datasets that evaluate model performance in cyber domains (i.e., malicious network traffic, cryptographic systems, adversarial LLM prompts, threat intelligence, and cyber ethics). Scale is at the frontier of the AI industry, improving the world's leading generative AI and large language models through model evaluations, human-powered supervised fine-tuning datasets, world-class reinforcement learning with human feedback, and more.
Penetration Tester, Mid (TS/SCI Clearance) Praescient Analytics LLCPenetration Tester, Mid (TS/SCI Clearance)Arlington, VA$90,000–$130,000 / yearPosition Overview: Praescient Analytics is seeking a highly motivated Penetration Tester to join our cybersecurity team in Arlington, VA, supporting the Department of War (DoW) Chief Digital and Artificial Intelligence Office's (CDAO) War Data Platform (WDP)-formerly known as Advana. You will conduct comprehensive penetration tests across applications, networks, and hybrid-cloud systems hosting hundreds of curated analytics tools, actively identifying and exploiting vulnerabilities to validate and strengthen the platform's security posture against advanced threats.
Iase / Isse LeidosIase / IsseSuitland, MarylandIn this engineering-focused role, you will actively secure, administer, harden, and maintain critical systems and infrastructure while collaborating across network, systems, cybersecurity, and architecture teams to continuously strengthen and evolve the organization’s overall security posture. Extensive experience with Intelligence Community (IC), Department of Defense (DoD), Defense Information Systems Agency (DISA), NAVINTEL Cybersecurity, Fleet Cyber Command (FLTCYBERCOM), and DoDIIS processes, tools, systems, reporting mechanisms, and requirements supporting Assessment and Authorization (A&A).
NewTechnical Targeting Specialist Booz Allen HamiltonTechnical Targeting SpecialistUsa, District of ColumbiaBachelor’s degree and 3+ years of experience in technical computer network target development or analysis in support of cyberoperations, or 6+ years of experience technical computer network target development or analysis in support of cyberoperations in lieu of a degree. Knowledge of modern network topologies or architecture components, including data centers, telecommunications and fiber optic backbones, and software and hardware supply chain.
Penetration Tester, Senior (TS/SCI Clearance) Praescient Analytics LLCPenetration Tester, Senior (TS/SCI Clearance)Arlington, VA$110,000–$160,000 / yearPosition Overview: Praescient Analytics is seeking a highly motivated Penetration Tester to join our cybersecurity team in Arlington, VA, supporting the Department of War (DoW) Chief Digital and Artificial Intelligence Office's (CDAO) War Data Platform (WDP)-formerly known as Advana. You will conduct comprehensive penetration tests across applications, networks, and hybrid-cloud systems hosting hundreds of curated analytics tools, actively identifying and exploiting vulnerabilities to validate and strengthen the platform's security posture against advanced threats.
Network Security Architect (SASE/SSE - Zscaler + Netskope) PeopleNTech LLCNetwork Security Architect (SASE/SSE - Zscaler + Netskope)Alexandria, VARequired Skills & Technical Competencies: - SASE/SSE, Zscaler (ZIA, ZPA, ZDX), Netskope, Cloudflare, Palo Alto Prisma - Secure Web Gateway, CASB, ZTNA, DLP inline, Remote browser isolation, FWaaS, Network Security architecture, current state assessment, healthchecks per OEM and best practices, SASE/SSE metrics and dashboards, L3 SME, HLD, LLD Qualifications: - Bachelor's or Master's degree in Computer Science, Information Technology, Engineering, or related field. The role involves performing due diligence on the current state to define strategy and roadmap, conducting healthchecks per OEM and industry best practices, and creating metrics reports and dashboards for executive and operational consumption.
OT Security Architect Segmentation & Compliance PeopleNTech LLCOT Security Architect Segmentation & ComplianceAlexandria, VAThe role involves performing due diligence on the current state to define strategy and roadmap, conducting healthchecks per OEM and industry best practices, and creating metrics reports and dashboards for executive and operational consumption. The incumbent will be a senior expert who solutions requirements, designs architecture, defines HLD and LLD, collaborates with customers, and leads / executes implementation of security projects.
Senior Security Architect Evolver FederalSenior Security ArchitectWashington, DCFull timeThe Senior Security Architect is responsible for designing, implementing, and maintaining enterprise-level cybersecurity architectures that protect federal systems and data. The Senior Security Architect will lead the development of secure solutions, provide technical guidance on security design, and collaborate with stakeholders to integrate advanced security controls across complex environments.
NewCloud Security Architect StratAcuity Staffing Partners IncCloud Security ArchitectSterling, VA$100–$115 / hourHands-on experience is required with cloud native security tools (Azure Defender for Cloud, GCP Security Command Center, AWS GuardDuty), command line interfaces (Bash, Powershell, AWS-CLI), security administration in Azure/GCP/AWS, perimeter security (WAF, CDN), cloud network engineering (CIDR, routing, VPN), zero trust architecture (HashiCorp Vault, AWS Secrets Manager, Azure Key Vault), SIEM/logging platforms (Splunk, Chronicle), Infrastructure as Code tools (Terraform, CloudFormation, Ansible), Docker, Kubernetes, developing and securing serverless applications, and GitHub Security. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA.
Technology Cloud Security Architect Cooley LLPTechnology Cloud Security ArchitectReston, VA$120,000–$175,000 / yearWe offer a full range of elective benefits including medical, health savings account (with applicable medical plan), dental, vision, health and/or dependent care flexible spending accounts, pre-tax commuter benefits, life insurance, AD&D, long-term care coverage, backup care for children and/or adults and other parental support benefits. This role requires a deep understanding of advanced cloud architectures, threat detection techniques, strong analytical skills, and the ability to work collaboratively with other security professionals and other Cloud Architects on the Technology Infrastructure and Development Operations team.
Senior Cloud Security Architect PlanIT GroupSenior Cloud Security ArchitectReston, VARemoteAI-Native Security Strategy: Architect specialized security frameworks for AI/ML pipelines, focusing on data privacy for training sets, model integrity, and securing LLM-integrated applications against emerging attack vectors. • Threat Modeling & Resilience: Conduct deep-dive threat modeling for complex cloud-native systems, simulating advanced persistent threats (APTs) and "blast radius" scenarios to strengthen system resilience.
Cloud Security Architect / FedRAMP Advisor Apogee Global RMSCloud Security Architect / FedRAMP AdvisorMcLean, VAThis role is built for architects who understand the intersection of cloud engineering, compliance frameworks, and real‑world security design — and who can guide federal programs through secure cloud adoption with precision and authority. You will serve as a trusted advisor across AWS, Azure, and hybrid environments, shaping security architectures, guiding FedRAMP readiness, and ensuring cloud platforms meet stringent federal requirements.
Principal Data Protection & Security Architect PeopleNTech LLCPrincipal Data Protection & Security ArchitectAlexandria, VA$70–$75 / hourDefine and implement data security controls including encryption, tokenization, obfuscation, data masking, row-level security, attribute/column-level security, access governance, and data loss prevention (DLP) capabilities. Deep hands-on expertise in Databricks security architecture , including Unity Catalog, RBAC/ABAC, data masking, row-level security, secure data sharing, lineage, and governance capabilities.
Cloud Security Architect, Mid Booz Allen HamiltonCloud Security Architect, MidChantilly, Virginia$62,000–$141,000 / yearOnsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.
Security Architect SteerBridge LLCSecurity ArchitectVienna, VA$170,000–$180,000 / yearEnsure that security requirements are adequately addressed in all aspects of enterprise architecture, including reference models, segment and solution architectures, and the resulting systems that protect and support organizational mission and business processes. Leveraging deep expertise in federal acquisition, digital transformation, and emerging technologies, we deliver agile, commercial‑grade capabilities that accelerate operational effectiveness and drive measurable mission success.
AI Security Architect AGE SolutionsAI Security ArchitectFort Meade, MDThe AI Security Architect provides specialized security engineering and architecture guidance for the secure integration, development, and deployment of Artificial Intelligence (AI) and Machine Learning (ML) capabilities, including Large Language Models (LLMs) and generative AI. This position serves as a security consultant to Mission Partners, system owners, ISSMs/ISSOs, architects, and development teams to ensure AI-enabled solutions protect mission information and Controlled Unclassified Information (CUI) throughout model training, deployment, and inference.
Security Architect Acuity INCSecurity ArchitectUNAVAILABLE, DCFamiliarity with infrastructure components (VMs, Security Products, Network ports and protocols, Databases, Middleware and open source code) to support DevOps in an enterprise environment to build, maintain and sustain an enterprise information technology DevOps operational model. Final compensation will be determined based on factors including, but not limited to, the candidate's qualifications, experience, education, certifications, skills, geographic location, contract requirements, applicable labor categories, and, where applicable, contract award and funding.