Database Security Engineer American International GroupDatabase Security EngineerReston, VAAbility to understand security risks and controls, to analyze various methods of controlling information security problems, determine the strengths and weaknesses of each method and implement the best cost-justified solution. Evaluating updates to new/existing database security controls by determining the strengths/weaknesses and coordinate the testing and implementation of the new/enhanced controls with all business partners that are affected.
Mid-Level Transport Network Engineer Leidos Holdings Inc.Mid-Level Transport Network EngineerColumbia, MD$59,150–$106,925 / yearFor 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. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Information System Security Engineer MarkonInformation System Security EngineerChantilly, Virginia$150,000–$180,000 / yearFull timeDevelop and maintain cybersecurity documentation supporting RMF and Assessment & Authorization (A&A) activities, including System Security Plans (SSPs), Security Assessment Reports (SARs), Plans of Action and Milestones (POA&Ms), risk assessments, and related artifacts. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.
Security Engineer (Infrastructure) gTANGIBLE CorporationSecurity Engineer (Infrastructure)Arlington, VirginiaMaintains and stays current with in-depth technical knowledge of operating system security testing tools in use by the Information Assurance & Cybersecurity Division ( IAD ) , and testing techniques in general, to perform automated security testing, manual validation of automated results, and manual configuration validation of items not covered by automated testing, of operating systems on servers, workstations, appliances, and other similar assets. The Secur ity En gineer (Infrastructure) supports this Transportation Security Administration Information Technology (TSA IT) Task Order (TO) by conducting Infrastructure Security Testing to include Operating System (OS), database, Network Fabric assets and Wireless Communications.
Data Center Physical Security Systems Engineer OpenAI LLCData Center Physical Security Systems EngineerDCFor unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. As OpenAI's global compute footprint continues to expand, this role will partner closely with infrastructure engineering, hardware operations, networking, and regional operations teams to design and deploy scalable security architectures across a diverse portfolio of data center environments.
NewInformation System Security Engineer Markon SolutionsInformation System Security EngineerChantilly, VA$150,000–$180,000 / yearDevelop and maintain cybersecurity documentation supporting RMF and Assessment & Authorization (A&A) activities, including System Security Plans (SSPs), Security Assessment Reports (SARs), Plans of Action and Milestones (POA&Ms), risk assessments, and related artifacts. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.
NewComputer Network Operations (CNO) Developer (Android) Cohere Technology Group LLCComputer Network Operations (CNO) Developer (Android)Washington, DCExploitation – You should have in depth knowledge with a wide range of techniques, including stack and heap attacks such as buffer overflows, off by one vulnerabilities, memory leaks, and format string attacks, and understand how to bypass protections like DEP and ASLR. Coding – Candidates should be able to demonstrate experience coding in C/C++ and Python, including understanding Object Oriented Programming, Networking (sockets), Multithreading, and implementing cryptographic protocols for data at rest and data in transit.
Network Engineer/Architect CbNetwork Engineer/ArchitectFt Belvoir, VirginiaBachelor’s degree in Computer Science, Electrical/Network Engineering, Information Systems, or a related technical discipline with 8-12 years of relevant experience, OR a Master’s degree with 6-10 years of relevant experience. Implement and manage network access control (NAC) using Cisco Identity Services Engine (ISE), including device profiling, posture assessment, and policy enforcement to support a Zero Trust architecture.
Sr. Network Engineer Abacus TechnologySr. Network EngineerWashington, Washington, DCAble to establish and maintain network performance by building network configurations and connections, troubleshooting network problems, and programming routers, switches and firewalls. Configure and manage Fortinet firewalls to protect cloud and on-premises network resources, implementing advanced security policies and access controls.
Network Engineer Armison TechNetwork EngineerChantilly, VirginiaWe're a company predominantly focused on cyber security for our government customers yet our expertise in other areas include big data analytics, instructional design, information management, and computer network infrastructure. As we help each of our new employees make adjustments to our operational methods, we make sure every professional is able to handle the workload of each project by resolving any relevant concerns or issues they may have relating to this recent career shift.
Infrastructure Security Engineer JBG SMITHInfrastructure Security EngineerBethesda, Maryland$130,000–$160,000 / yearFull timeIn-depth knowledge of Cloud Service Operations & Controls, network monitoring/management tools, network access control (Cisco ISE), NIST Framework, Zero trust solution (Zscaler), sophisticated networks and dynamic routing protocols (BGP, EIGRP), SD-WAN, VoIP/Cloud Voice Solutions, SaaS, PaaS, IaaS, SCCM and device/system patching, Building Automation Systems, SIEM (Splunk, CrowdStrike), network and endpoint security tools, firewalls (Palo Alto, Meraki, Cisco, Ruckus), Citrix, as well as WVD/Workspaces. This role suits an engineer who takes a holistic, full-stack approach — comfortable across every layer of the environment, from physical network and cabling design through cloud architecture and application enablement — and who wants to materially influence the security posture of a multi-faceted real estate company.
NewEndpoint Security Engineer Abile Group, Inc.Endpoint Security 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.
NewSenior Network Engineer - TS/SCI w/ Poly Parsons CorpSenior Network Engineer - TS/SCI w/ PolyColumbia, MD$134,100–$241,400 / yearBachelor's Degree from an accredited college or university in Computer Engineering, Computer Science, Cybersecurity, Computer Engineering, or related discipline or an equivalent technical/scientific discipline specifically related to area of specialty ( Advanced degree may be preferred at this level). Perform complex systems development and IT infrastructure design work that may include logic network design, physical network design, manufacturing and development cost projections, IT systems engineering.
Computer Network Defense Analyst (CNDA) III NewGen TechnologiesComputer Network Defense Analyst (CNDA) IIIArlington, VirginiaThese proactive measurers include, but are not limited to, identification of intruder local changes/suspect interactions, isolation, in-depth digital media analysis, consultation with law enforcement or counterintelligence organizations, development of signatures to detect this malicious behavior and development and deployment of eradication tools. Notify designated managers, cyber incident responders, and cybersecurity service provider team members of suspected cyber incidents and articulate the event's history, status, and potential impact for further action in accordance with the organization's cyber incident response plan.
Software Developer, Python - Security Clearance Required ICFSoftware Developer, Python - Security Clearance RequiredAdelphi, Maryland$81,499–$138,549 / yearPay 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. This role will support development and evaluation of machine learning (ML) algorithms for resource constrained devices such as Unmanned Air/Ground Vehicles (UAV/UGV) toward realizing efficient and effective Intelligence, Surveillance, Reconnaissance (ISR) in tactical environments.
National Security Analyst WireScreenNational Security AnalystArlington, VirginiaReport and write weekly on topics important to our customers: a mix of reported stories and shorter explanatory pieces (500–1,000 words) covering defense, national security, export controls, cybersecurity, rare earths, quantum, AI, and semiconductors, with room to break news. We’re building the go-to intelligence platform for navigating global supply chains and China-related risk—revealing the networks, relationships, and financial ties behind companies so our customers can see connections, remove obstacles, and make confident decisions.
DevOps Engineer ADG TECH Consulting LLCDevOps EngineerSterling, VAFull timeHands-on experience with AWS managed services (VPC, EC2, EKS, RDS), including monitoring and analytics tools such as AWS CloudWatch, NewRelic. Maintain, monitor, and help improve the performance and availability of the 24x7 production environment including networks, servers, databases, etc.
Senior Cloud Security Engineer Anduril Industries IncSenior Cloud Security EngineerWashington, DC$166,000–$220,000 / yearTo ensure your safety and help you navigate your job search with confidence, please keep the following critical points in mind: No Financial Requests: Anduril will never solicit payment or demand personal financial details (such as banking information, credit card numbers, or social security numbers) at any stage of our hiring process. As the world enters an era of strategic competition, Anduril is committed to bringing cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technology to the military in months, not years.
Information Systems Security Officer (ISSO) II TAC Integrated SolutionsInformation Systems Security Officer (ISSO) IIDistrict of ColumbiaThe primary function is working within Special Access Programs (SAPs) supporting Department of Defense (DoD) agencies, such as HQ Air Force, Office of the Secretary of Defense (OSD) and the Military Compartments’ efforts. The position shall have the detailed knowledge and expertise required to manage the security aspects of an information system and, in many organizations, is assigned responsibility for the day-to-day security operations of a system.
Cyber Security Analyst, Senior (High Level Clearance Required) ICF International IncCyber Security Analyst, Senior (High Level Clearance Required)Arlington, VA$108,476–$184,409 / yearPay 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. ICF seeks an experienced Senior Cyber Security Analyst to support the research and development of new cyber analytic capabilities that will help the US protect and defend its networks and critical information systems.