Lead Firewall Engineer Abile Group, Inc.Lead Firewall EngineerSpringfield, VirginiaAbile Group, founded in July 2004 to support the Intelligence Community and its contractors across Enterprise Analytics, IT & Systems Engineering, and Program & Project Management, merged with Valiant Solutions in January 2026 - an established provider of cybersecurity technologies and services for Federal Agencies since 2005. With significant experience serving the Federal Government, we remain dedicated to our employees and clients and seek high‑performing professionals who excel at providing guidance, developing solutions, and delivering implementation support that blends industry best practices with client expertise and Abile’s broad technical capabilities.
Digital Network Exploitation Analyst's (DNEA) Level 1-4 SentarDigital Network Exploitation Analyst's (DNEA) Level 1-4Annapolis Junction, MDAnalyze SIGINT and cybersecurity data at multiple levels up and down the OSI network stack and bring a solid understanding of logical/physical IP core infrastructure, communication devices and how they connect to networks, and the traffic movements in a network. In addition, it may also include engineering hardware and/or software, programming, computer/network security, vulnerability analysis, penetration testing, computer forensics, information assurance, systems engineering, and/or network and systems administration.
Principal Endpoint Security Systems Engineer LeidosPrincipal Endpoint Security Systems EngineerBethesda, MarylandWorking in a hybrid cloud/on-prem mission environment the engineer will support integration of Linux and Windows hosted mission systems with the endpoint security product and maintaining the scan policies to ensure proper protection of mission systems from external threats. January 21, 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.
Cyber Security Engineer NoblisCyber Security EngineerWashington, Washington, DC$86,800–$135,625 / yearFull timeCompensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws. Personnel performing cybersecurity functions must meet DoD cybersecurity workforce certification requirements in accordance with DoD Manual 8140.3 for their designated role within 9 months of hire.
Cloud Security Engineer/Architect (Hybrid) A.C. CoyCloud Security Engineer/Architect (Hybrid)Falls Church, VirginiaAPI-First Automation: Deep expertise in building "glue code" that connects disparate COTS and custom applications via secure, automated APIs to streamline cross-functional business activities. Responsibilities: Security Architecture Vision: Lead the design of a global Zero Trust architecture, ensuring robust identity governance (IAM), network micro-segmentation, and data encryption across AWS, Azure, or GCP.
Principal Information Systems Security Engineer LeidosPrincipal Information Systems Security EngineerLinthicum, MarylandAs a Principal Information Security Systems Engineer (ISSE) you will join a small team of security engineers providing Information Assurance (IA) Architecture Analysis and Security Engineering Support for the implementation and fielding of the National Leadership Command Capability in support of Nuclear Command, Control, and Communications (NC3), Continuity of Government (COG), and Senior Leader communications. Bachelor of Science degree from an accredited university ideally in Computer Science, Information Assurance, Information Security System Engineering or related field with a minimum of 20 years of experience as an Information Systems Security Engineer (ISSE) or System Engineer on programs and/or contracts with the customer space.
Cyber Security Development Engineer - JobID-0255 Innovative Defense TechnologiesCyber Security Development Engineer - JobID-0255Arlington, Virginia$90,000–$184,000 / yearThe Cyber Security Development Engineer is a highly technical role focused on ensuring the security and resilience of our software and systems and will be responsible for designing, building, and maintaining secure systems, applications, and infrastructure to protect against cyber threats. About The Role: Innovative Defense Technologies (IDT), a leading defense technology company, is seeking a Cyber Security Development Engineer to be part of our Advanced Capabilities team and based out of our Arlington, VA location.
Information Systems Security Engineer (ISSE) DirectViz Solutions, LLCInformation Systems Security Engineer (ISSE)Aberdeen, MDFull timeDevelop, implement, and maintain security architectures for research information systems in compliance with DoD, Army, and NIST cybersecurity policies and frameworks (e.g., RMF, NIST SP 800-53).Conduct and document security risk assessments and vulnerability analyses for new and existing research systems, networks, and applications. Qualifications:IAT III Certification (CASP+, CISSP, CISA, CISM, CCSP, GCED, GCIH, CCNP Security)8-10 years relevant experience in Cyber Security Preferred Qualifications:Master's degree in information technology or related fieldRequired Security Clearance:US Citizenship and an active DoD Top Secret Clearance per contract requirements.
NewSenior Cyber Security Engineer Brown and Caldwell IncSenior Cyber Security EngineerAlexandria, VA$129,000–$177,000 / yearWorking knowledge across many of the following domains, with deeper hands-on expertise in at least three or four: identity & access management; communications & network; asset; operations; software development; application; SIEM and detection engineering; automation/scripting; incident and vulnerability management; and assessment/compliance/audit support. The Senior Cyber Security Engineer protects the companys systems and information by designing, building, and supporting complex security solutions while driving the organizations compliance posture against applicable industry frameworks and client requirements.
NewSr. Endpoint Security Systems Engineer LeidosSr. Endpoint Security Systems EngineerBethesda, MarylandWorking in a hybrid cloud/on-prem mission environment the engineer will support integration of Linux and Windows hosted mission systems with the endpoint security product and maintaining the scan policies to ensure proper protection of mission systems from external threats. August 25, 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.
Network Engineer CTC GroupNetwork EngineerFort Meade, MDCTC Group is seeking System Administrators for a contingent program to provide support and serve on the Network Administration team including technical support to the Network Administrators and System Administrators, monitoring and maintaining the current infrastructure, improving system performance, and automating system administration. Provide technical support to Network Administrators and System Administrators, monitor and maintain current infrastructure, improve system performance, and automate system administration.
Cyber Security Code Analyst, Mid Booz Allen HamiltonCyber Security Code Analyst, MidUsa, MarylandOnsite : 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.
Information Systems Security Engineer Level 1 Applied Integrated TechnologiesInformation Systems Security Engineer Level 1Arrowhead, MDParticipate as the primary security engineering representative on engineering teams for the design, development, implementation, evaluation, and/or integration of secure networking, computing, and enclave environments. Participate as a security engineering representative on engineering teams for the design, development, implementation and/or integration of secure networking, computing, and enclave environments.
Sr. Information Systems Security Officer 2HBorporatedSr. Information Systems Security OfficerAnnapolis Junction, MarylandEvaluate proposed security architectures and designs and provide input as to the adequacy of those security designs to meet required security compliance objectives. Provide input to A&A process activities and related documentation such as systems concept of operations, system security design, implementation plans, operational procedures, and maintenance training materials.
NewTechnical Consultant- Cyber Security Engineering Job | Esri Career Opportunity Environmental Systems Research Institute IncTechnical Consultant- Cyber Security Engineering Job | Esri Career OpportunityVienna, VA$84,240–$142,480 / yearYou''ll work closely with system engineers, administrators, and program teams to ensure systems are built, assessed, and operated in compliance with DoD and NIST requirements. Compensation decisions and the base range for this role take into account many factors including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs.
NewInformation Systems Security Officer (ISSO) GD Information TechnologyInformation Systems Security Officer (ISSO)Annapolis Junction, MarylandTo 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. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.
Digital Network Exploitation Analyst ManTechDigital Network Exploitation AnalystAnnapolis Junction, MDDegree in a technical field (e.g., Telecommunications, Computer Science, Engineering, Mathematics, Physics, Computer Forensics, Cyber Security, IT, or Information Systems, Networking and Telecommunications, etc.) preferred. + Experience with evaluating target opportunities using all source data to understand and map target networks and to assist in developing detailed exploitation and operations plans.
Staff Security Engineer Alarm.com IncorporatedStaff Security EngineerTysons Corner, VA$167,500–$180,500 / yearOur comprehensive suite of solutions-including security, video surveillance, access control, active shooter detection, intelligent automation, energy management, and wellness-is delivered exclusively through a trusted network of thousands of professional service providers and commercial integrators across North America and worldwide. We collect and use those categories of Personal Information about you for human resources and other business management purposes, including identifying and evaluating you as a candidate for potential or future employment or future positions, recordkeeping in relation to recruiting and hiring, conducting criminal background checks as permitted by law, conducting analytics, and ensuring compliance with applicable legal requirements and Company policies.
Staff Security Engineer Alarm.comStaff Security EngineerTysons Corner, VA$167,500–$180,500 / yearOur comprehensive suite of solutions—including security, video surveillance, access control, active shooter detection, intelligent automation, energy management, and wellness—is delivered exclusively through a trusted network of thousands of professional service providers and commercial integrators across North America and worldwide. We collect and use those categories of Personal Information about you for human resources and other business management purposes, including identifying and evaluating you as a candidate for potential or future employment or future positions, recordkeeping in relation to recruiting and hiring, conducting criminal background checks as permitted by law, conducting analytics, and ensuring compliance with applicable legal requirements and Company policies.
Network Engineer 2 - Tysons, VA M.C. Dean, IncNetwork Engineer 2 - Tysons, VATysons , VirginiaFull timeAs part of the team, the Network Engineer’s responsibilities will include (but will not be limited to) the following: Implement approved network changes—switching, routing, wireless, firewall, SD-WAN, VPN, and cloud networking—following established designs, configuration baselines, and change-management procedures. This role is the network analog to our developer-platform Systems Engineer role and is focused on day-to-day operations, change implementation, and lifecycle support of deployed systems—working under the direction of senior network engineers and architects.