Sr Information Systems Security Engineer (ISSE) - VRT, Advisor - TS/SCI w/poly PeratonSr Information Systems Security Engineer (ISSE) - VRT, Advisor - TS/SCI w/polyWashington, D.C.$146,000–$234,000 / yearFull timeServe as a principal technical advisor on cybersecurity, bringing subject-matter expertise to risk analysis, incident response, system remediation, and audit support efforts. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.
Sr Information Systems Security Engineer (ISSE) - SCA, Advisor - TS/SCI w/poly PeratonSr Information Systems Security Engineer (ISSE) - SCA, Advisor - TS/SCI w/polyQuantico, Virginia$146,000–$234,000 / yearFull timeServe as a principal technical advisor on cybersecurity, bringing subject-matter expertise to risk analysis, incident response, system remediation, and audit support efforts. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.
Sr Information Systems Security Engineer (ISSE), Advisor - TS/SCI w/poly PeratonSr Information Systems Security Engineer (ISSE), Advisor - TS/SCI w/polyWashington, D.C.$146,000–$234,000 / yearFull timeServe as a principal technical advisor on cybersecurity, bringing subject-matter expertise to risk analysis, incident response, system remediation, and audit support efforts. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.
Information Systems Security Engineer MarkonInformation Systems Security EngineerFort Meade, Maryland$215,000–$225,000 / yearFull timeDescription: Markon is seeking an experienced Information Systems Security Engineer (ISSE) to support the Fort Meade customer by providing cybersecurity engineering expertise for mission-critical systems supporting the Cyber Threat Intelligence (CTI) mission. This role evaluates system and cloud architectures, develops security requirements and technical documentation, supports authorization activities, and identifies and mitigates vulnerabilities across classified and unclassified environments.
Information Systems Security Engineer Markon SolutionsInformation Systems Security Engineerfort meade, MD$215,000–$225,000 / yearMarkon is seeking an experienced Information Systems Security Engineer (ISSE) to support the Fort Meade customer by providing cybersecurity engineering expertise for mission-critical systems supporting the Cyber Threat Intelligence (CTI) mission. This role evaluates system and cloud architectures, develops security requirements and technical documentation, supports authorization activities, and identifies and mitigates vulnerabilities across classified and unclassified environments.
NewSr. Principal Threat Intelligence Engineer- Remote Or Hybrid In MN Or DC UnitedHealth Group Inc.Sr. Principal Threat Intelligence Engineer- Remote Or Hybrid In MN Or DCWashington, DCRemote$134,600–$230,800 / yearThe Senior Principal Threat Intelligence Engineer is expected to conceptualize, guide, and execute the delivery of technical intelligence solutions to CTI, SOC, Threat Detection, and Threat Hunting teams that accelerate the processing and dissemination of intelligence, increase speed of detection, and enable rapid response. The role focuses on ingesting, normalizing, and enriching threat intelligence information, integrating Threat Intelligence Platforms (TIPs) and intelligence sources with security tooling (e.g., SIEM, SOAR, EDR), and deploying automated intelligence-enabled detection and response workflows.
Enterprise Requirements Engineer PeratonEnterprise Requirements EngineerLinthicum, Maryland$146,000–$234,000 / yearFull timeThis position would be responsible for working across multiple teams to understand the technical aspects of each project and breaking down the information into enterprise project plans to span multiple projects and assist project managers to track work against. A degree in one of the following fields of study is highly desired: Information Technology, Computer Science, Cybersecurity, Information Systems, Software Engineering, or Data Science.
NewMalware Engineer PeratonMalware EngineerLinthicum, Maryland$135,000–$216,000 / yearFull timeThe successful candidate will contribute to protecting national security interests by leveraging technical expertise, analytical skills, and innovative problem-solving to address complex cyber challenges. Responsibilities: Peraton is seeking a Malware Engineer in our Linthicum, MD office in support of our Department of Defense (DoD) customer as part of a highly talented, highly motivated, and high-performing team.
AI/ML Engineer Nightwing Intelligence SolutionsAI/ML EngineerSterling, VirginiaNightwing is 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. The AI/ML Engineer will develop and implement automation solutions to support machine learning technology integration activities, focusing on agentic workflow development, automated analysis workflows, and integration automation.
Senior Principal Reverse Engineer Nightwing Intelligence SolutionsSenior Principal Reverse EngineerSterling, VirginiaThis position requires deep technical knowledge of proprietary hardware systems, exploitation methodologies, and defensive strategies to support forensic investigations of compromised edge devices and systems where threat actors have embedded malware deeply within hardware components. Nightwing is 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.
Application Security Engineer — Secure Mission Systems RacknerApplication Security Engineer — Secure Mission SystemsLaurel, MDYou will work closely with software engineers, AI/ML engineers, platform teams, DevSecOps professionals, and customer technical leads to identify meaningful risks, support vulnerability remediation, and strengthen secure-development practices. You will help teams understand security findings, separate actionable risks from false positives, verify fixes, improve software supply-chain security, and deliver resilient software with greater confidence.
Senior Ansible Engineer Sealing Technologies, a Parsons CompanySenior Ansible EngineerColumbia, MD$127,000–$157,000Sealing Technologies, a Parsons company, innovates and delivers high-performance deployable anywhere technologies that push what's possible at the edge, enabling organizations across the globe to solve complex challenges with speed and confidence. Strong understanding of core cybersecurity concepts, technologies, and methodologies and understanding of infrastructure security, hardening processes, techniques, and industry best practices.
Information Systems Security Engineer The Josef GroupInformation Systems Security EngineerChantilly, VirginiaDevelop, implement, and/or integrate Information Assurance (IA) and security systems, including those for networking, computing, virtualization, cloud, and enclave environments, to include those with multiple enclaves and with differing data protection/classification requirements. 8+ years of experience supporting highly secure cybersecurity systems, including ATO processing, A&A documentation, networking operations, and security control analysis/remediation.
Information Systems Security Engineer ( ISSE) CACIInformation Systems Security Engineer ( ISSE)Columbia, Maryland$120,800–$265,800 / yearPay 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. Job Title: Information Systems Security Engineer ( ISSE)Job Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental US* * * The Opportunity:
NewSenior Systems Engineer (On-Site - Arlington, VA) Chinook SystemsSenior Systems Engineer (On-Site - Arlington, VA)Arlington, VA$130,000–$170,000 / yearAuthor and maintain detailed technical white papers, SOPs, architecture and workflow diagrams, configuration baselines, runbooks, implementation guides, and test evidence in version-controlled repositories; transfer routine support procedures to the provider. Demonstrated ability to produce detailed technical white papers, SOPs, system and workflow documentation, and implementation records, and to execute formal change management with approvals, testing, rollback, and post-change validation.
NewSenior IT Systems Engineer (On-Site - Arlington, VA) Chinook SystemsSenior IT Systems Engineer (On-Site - Arlington, VA)Arlington, VA$130,000–$170,000Author and maintain detailed technical white papers, SOPs, architecture and workflow diagrams, configuration baselines, runbooks, implementation guides, and test evidence in version-controlled repositories; transfer routine support procedures to the provider. Demonstrated ability to produce detailed technical white papers, SOPs, system and workflow documentation, and implementation records, and to execute formal change management with approvals, testing, rollback, and post-change validation.
Senior Threat Detection Engineer Dragos IncSenior Threat Detection EngineerDCRemoteAbout the Role: Dragos is seeking a Senior Detection Engineer to join our Detection Engineering team, which plays a pivotal role in our customers'' ability to identify and respond to threats targeting their OT environments by turning cyber threat intelligence into high-fidelity, performant detections. Backed by the industry's largest and most experienced team of industrial control systems (ICS) cybersecurity practitioners, Dragos ICS Cyber Threat Intelligence provides in-depth visibility of threats targeting industrial environments globally.
Cyber Systems Security Engineering Sr - E3 Lockheed Martin CorpCyber Systems Security Engineering Sr - E3Springfield, VA$110,300–$204,900 / yearLockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate''s work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer. Experience performing cybersecurity accreditation activities in support of software and system requirements, design, development, testing, and sustainment of approvals - Authority To Operate.
Federal Sales Engineer, CIV Horizon3Federal Sales Engineer, CIVWashingtonWe're committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Technical expertise - Must demonstrate deep knowledge of our cybersecurity products and services, assisting the sales team in presenting and position them to prospects and clients.
Federal Sales Engineer, DoW Horizon3Federal Sales Engineer, DoWWashingtonRemoteWe're committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Technical expertise - Must demonstrate deep knowledge of our cybersecurity products and services, assisting the sales team in presenting and position them to prospects and clients.