June 5, 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.
The Digital Modernization Sector at Leidos is seeking a Sr Azure Virtual Desktop Engineer 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.
Supporting 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 of the severity of breaches, develop mitigation plans, and assist with the restoration of services.
Alexandria, VA16 days ago
June 10, 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.
The 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.
ul>Bachelor’s degree and minimum of 4 years of experience working with Red Hat Enterprise Linux 7.X, 8.X, 9.X with a strong command-line interface (CLI) skillset (additional 2 years of experience may be substituted in lieu of degree).
Gaithersburg, MD17 days ago
June 9, 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. 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.
HII - Mission Technologies is currently seeking Senior-level IaC Engineer to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platformdesigned to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • Designs and implements automated cloud architectures using Terraform, Ansible, and CloudFormation to support system administration, release management, cybersecurity controls, and continuous integration pipelines across multiple operational enclaves.
HII - Mission Technologies is currently seeking a Senior Information System Security Officer (ISSO) to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • 10 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 is currently seeking a SME Information System Security Manager (ISSM) to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • 15 years relevant experience with Bachelors in related field; 13 years relevant experience with Masters in related field; 10 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 19 years relevant experience.
HII - Mission Technologies is currently seeking Intermediate-level IaC Engineer to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platformdesigned to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. "• 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.
HII - Mission Technologies is currently seeking an Intermediate-level Cloud Security Engineer to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • Conducts patch management operations across Advana cloud enclaves by operating vulnerability scanning workflows, identifying required updates, tracking patch applicability, and automating deployment actions aligned with Department of Defense patching directives supporting Joint Staff elements and mission-owner communities.
Fort Belvoir, VA30+ days ago
Implementing 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.
Chantilly, VA30+ days ago
Job Title: Senior Cyber Security Engineer (Splunk) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers via email, phone, or virtual communication, which may involve delivering presentations.
p>Competencies: • 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.
p>The right candidate will understand software development, system administration, networking, and security and be able to take a holistic systems level approach to influence how we build our applications to meet the higher level security requirements associated with a system that bridges security domains, as well as someone who can help the software engineers understand zero trust architecture for a multi-releasability domain. Responsibilities include serving as information security specialist, reviewing all software, hardware, and infrastructure changes on the contracts, following the risk management framework process to support system accreditation, continuous monitoring, security mitigation; maintain security documentation, and other tasks as necessary.
p>The Principal Cyber Security Engineer will leverage their strong technical background and knowledge to support the Sponsor's system accreditation efforts, to include creating Body of Evidence (BOE) documentation, responding to/implementing/documenting required controls, and completing required tasks/actions. Deploying solutions to proactively mitigate cyber threats to customer networks while collaborating with cross-functional teams to ensure security and performance requirements.
Sterling, Virginia30+ days ago
The right candidate will understand software development, system administration, networking, and security and be able to take a holistic systems level approach to influence how we build our applications to meet the higher level security requirements associated with a system that bridges security domains, as well as someone who can help the software engineers understand zero trust architecture for a multi-releasability domain. Responsibilities include serving as information security specialist, reviewing all software, hardware, and infrastructure changes on the contracts, following the risk management framework process to support system accreditation, continuous monitoring, security mitigation; maintain security documentation, and other tasks as necessary.
Chantilly, Virginia26 days ago
li>Experience 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). Qualifications: 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..
Fort Belvoir, VA30+ days ago
Will 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.
Washington DC, DC5 days ago
Bachelor’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.
Ability 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.
Ability 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.
Ability 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.
Chantilly, Virginia23 days ago
p>Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. We’re looking for a Senior Cyber Security Engineer who is passionate about protecting critical systems, solving complex technical challenges, and building high‑performance data collection and monitoring capabilities that empower smarter decision-making.
Merrifield, VA25 days ago
By applying for this job, you agree to receive AI-generated calls, text messages, and/or emails from Mitchell Martin Inc and its affiliates and contracted partners at various frequency through traditional and automated methods. The position requires expertise in cybersecurity engineering, with a focus on data scanning technologies.
Springfield, VA30+ days ago
Engineer 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.
We are looking for candidates with 7-10 years of experience as a Systems Administrator with strong Linux/Windows administration, cybersecurity operations, patch management, automation, networking, and enterprise change management experience. The engineer works closely with cyber teams, manages ticket queues, performs access reviews, responds to audits, and contributes to documentation while supporting Agile/Kanban workflows and enterprise security initiatives.
Design, configure, implement, troubleshoot, and maintain all security platforms and their associated software, such as firewalls (Security Groups), intrusion detection/intrusion prevention, anti-virus/malware (HBSS), cryptography systems (Vormetric), SIEM (Splunk), and MDM. The Cyber Security Engineer must display an excellent understanding of technology and utilization of Firewalls (Security Groups), VPNs, Data Loss Prevention (DPS), IDS/IPS, Web-Proxy, Security tools, and Security Audits.
Chantilly, VA30+ days ago
p>• Bachelors degree or 4 years of additional cyber experience in lieu of degree • 5 years of cyber experience • Experience with technologies involved in large-scale enterprise network deployments and data centers • Experience deploying and/or supporting enterprise security software products such as firewalls, IPS, anti-virus solutions, application firewalls, high availability solutions, network management systems, and virtual systems • Knowledge of Windows and Linux systems, general operating system security practices, TCPIP networking, 802.1x, and network security concepts • IAT Level II certification, GSEC Security, SSCP, or CCNA-Security, or ability to obtain within 6 months of hire. • Experience implementing and using complex software products involving multiple integrated components • Real-time enterprise-level C2C expertise, including vendor-agnostic services, open-source trends, and proficiency in DoD integration engineering and sustainment processes • Experience with Cisco Identity Services Engine (ISE) • Experience with tools such as Nmap, Nessus, and tcpdump.
Springfield, VA30+ days ago
Qualifications: Required: A deep expertise in one of the following areas and working knowledge of one or more of the other following: Network Detection and Response (Vectra, Extrahop, Corelight etc), Endpoint Detection and Response (Carbon Black, CrowdStrike Falcon, Microsoft Defender), Next-Generation Firewalls (Palo Alto, Juniper, Cisco), Intrusion Detection/Prevention Systems (Cisco Firepower), F5 platforms, email/web security gateways (Proofpoint, Cisco) Strong technical background with a thorough understanding of cloud infrastructure, security principles, compute, storage, and transport Expertise in Windows and Linux server operating systems Excellent writing and communication skills, including the ability to develop analytical documents and present oral presentations to senior/executive management Ability to work independently with little direction and guidance 6+ years related technical experience in network/cybersecurity engineering and experience with large-scale enterprise/global networks in a highly diverse environment with an emphasis in DoD capabilities Demonstrated experience modernizing complex enterprise cybersecurity systems Candidate must have a TS/SCI with ability to obtain a Polygraph Certified DoD 8140.01 and 8570.01-M Responsibilities: Represent customer requirements in technical exchanges with other government agencies Develop and maintain architecture diagrams Develop and maintain a road map for capabilities, operations, and technologies Assist with development and execution of test plans and supporting documentation of all network configuration upgrades, additions or revisions for customer approval before implementation May serve as a team or task lead Coordinate with stakeholders and external assessors to facilitate security assessments and authorization processes.
li>Experience managing Linux-based Java/Tomcat COTS web applications, Windows .NET-based IIS COTS applications, or physical/virtual appliances with limited Linux CLI interfaces. This role supports enterprise cybersecurity tools and infrastructure, with a focus on systems administration, vulnerability remediation, and secure platform maintenance.
The Cyber Security Engineer- Technical Lead will serve in a hands-on "player-coach" capacity, dedicating approximately 75% of time to direct technical engineering, troubleshooting, and implementation work, while providing technical leadership and coordination across the security team. • Provide technical leadership and subject matter expertise to the security engineering team while coordinating with peer Technical Leads across infrastructure and application domains to ensure alignment of architecture and security controls.
We 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.
In support of various state and city equal pay transparency laws, Ad Hoc job descriptions feature the starting range we reasonably expect to pay to candidates who would join our team with little to no need for training on the responsibilities we've outlined above. We’ve helped build products that connect Veterans to tailored services, help millions access affordable health care, and support important programs like Head Start.
Our 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.
Alexandria, VA30+ days ago
Leidos Digital Modernization sector is seeking an experienced SME Cybersecurity Engineer to support the delivery, enhancement, and adoption of enterprise data and analytics products used across multiple DoD organizations. Bachelor's degree in Computer Science, Engineering, Information Systems, Cybersecurity, or related technical discipline and 12-15 years of relevant experience OR Master's degree in a related field and 10-13 years of relevant experience.
Chantilly, VA30+ days ago
The Principal Cyber Security Engineer will leverage their strong technical background and knowledge to support the Sponsor’s system accreditation efforts, to include creating Body of Evidence (BOE) documentation, responding to/implementing/documenting required controls, and completing required tasks/actions. + Deploying solutions to proactively mitigate cyber threats to customer networks while collaborating with cross-functional teams to ensure security and performance requirements.
By taking a three-tiered, holistic approach for evaluating security posture and ecosystems, GuidePoint enables some of the nation's top organizations, such as Fortune 500 companies and U.S. government agencies, to identify threats, optimize resources and integrate best-fit solutions that mitigate risk. With more than 800 vetted technology vendor partnerships and deep practitioner expertise across every major cybersecurity domain, GuidePoint serves more than half of the U.S. Government's cabinet-level agencies across Civilian, DoD, and Intelligence Community segments, as well as Federal System Integrators and major defense prime contractors.
p>They will bring experience identifying and prioritizing risk across enterprise systems, applying defense-in-depth principles across platforms, and leveraging security tools and threat intelligence (including CVE and CISA Known Exploited Vulnerabilities (KEV)) to proactively mitigate threats. This role focuses on strengthening enterprise cybersecurity posture through a combination of vulnerability management, secure engineering practices, DevSecOps integration, and advanced threat detection, while incorporating Zero Trust principles as part of a comprehensive defense strategy.
Chantilly, Virginia16 days ago
div class="job__description body">Freedom Technology Solutions Group is seeking a motivated, career and customer-oriented Cyber Subject Matter Expert - Scientist to perform on our Cybersecurity Data Analysis Services team in the Springfield, VA.
Verification and validation that the segments are operating as desired, audit events are being processed, and parsed properly, metrics generation, and ensuring that all required systematic audit events are being accomplished.
Springfield, VA30+ days ago
li>Experience 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.
The ideal candidate has strong hands-on experience in intrusion detection, threat hunting, phishing investigations, endpoint and network analysis, and operational cybersecurity support. Investigate and respond to security alerts involving phishing, malicious URLs, malware activity, credential compromise, suspicious authentication activity, and endpoint threats.
li style="font-family:serif;font-size:10pt;margin:0pt 0pt 0pt 26.5pt;padding-left:9.5pt;text-indent:0pt">Demonstrated experience securing Kubernetes platforms (secrets management, RBAC, etc.) and integrating security into CI/CD pipelines and containers; must understand microservices architecture and service mesh. Bachelor’s degree in a related field and 8+ years of industry experience with 5+ years in cybersecurity or additional years of experience in lieu of degree (ISSO experience must be supplemented with demonstrated technical expertise).
Founded in 1986, OnTrac has evolved into the leading provider of same-day and next-day delivery services in the U.S. for premier e-commerce and product-supply businesses, including five of the largest retailers in the U.S. Location: Remote - Washington D.C., Maryland, Virginia (Preferably). Your Mission in Motion: SOC + GRC enablement: Design and implement technical solutions that assist the SOC in alert orchestration (SOAR) and provide the GRC team with automated risk monitoring and evidence collection capabilities.
Springfield, VA14 days ago
The NV5 family brings together talent across a wide range of markets and fields, including Professional Engineers, Professional Land Surveyors, Architects, Photogrammetrists, GIS Professionals, Software Developers, IT, Project Management Professionals, and more. You will focus on cybersecurity engineering, risk management, and compliance across cloud and on-prem systems, supporting system authorization, vulnerability management, and secure operations in classified environments.
Chantilly, VA30+ days ago
The Senior Splunk Cyber Security Engineer will leverage their strong technical background and knowledge to support the Sponsor’s system accreditation efforts, to include creating Body of Evidence (BOE) documentation, responding to, implementing, and documenting required controls, and completing required tasks and actions. + Deploying and managing all supported and unsupported Splunk Add-ons required for specific data sources and performing integrations via API.
Demonstrated experience with networking, including Open Systems Interconnection (OSI) model, TCP/IP, Multiprotocol Label Switching (MPLS), Synchronous Optical Network (SONET), and Ethernet. A Bachelor's degree (or equivalent experience) in Computer Science, Systems Engineering, Mathematics, Information Systems, or other associated discipline.
QUALIFICATIONS: Education Level: Bachelor''s Degree in Computer Science, Information Technology, or related field OR in lieu of a Bachelor''s degree, an additional 4 years of relevant work experience is required in addition to the required work experience. Note: The incumbent is required to immediately disclose any debarment, exclusion, or other event that makes him/her ineligible to perform work directly or indirectly on Federal health care programs.