Endpoint Engineer LeidosEndpoint EngineerBowie, MD$87,100–$157,450Ensure proper OS images are deployed to all endpoint devises, test and manage software updates, ensure appropriate and enforce security policies (EDR/AV), and automate workflows to ensure stable, compliant, and efficient computing environments for endpoint migrations. The Defense Enclave Services contract will unify the DoD Fourth Estate Defense Agencies and Field Activities’ (DAFAs) common use information technology systems, personnel, functions, and program elements under the direction of DISA’s Fourth Estate Network Optimization program office.
Enterprise Architect/Systems Engineer LeidosEnterprise Architect/Systems EngineerBethesda, MD$131,300–$237,350Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. 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.
Senior Systems Engineer LeidosSenior Systems EngineerLaurel, MD$131,300–$237,350This may include decomposing features into workable stories, prioritizing or reprioritizing items in the backlog for upcoming sprints, refining acceptance criteria and complexity estimates or removing tickets that are no longer relevant. Leidos has an exciting opening for you, as our next TS/SCI cleared Senior Systems Engineer, to play a critical role with design, engineering, development and deployment of software supporting the DIA-NMEC (National Media Exploitation Center) DOMEX Technology Platform (DTP).
Active Directory Architect / Engineer LeidosActive Directory Architect / EngineerSilver Spring, MD$131,300–$237,350Design, deploy, upgrade, and administer Active Directory Domain Services, including domain controllers, forests, domains, trusts, and replication topologies (i.e. Manage and optimize Group Policy Objects (GPOs), OU structures, and security baselines; including object management through bulk operations and automation, Troubleshoot and resolve complex AD-related issues, including authentication failures, replication problems, DNS issues, and Kerberos/NTLM problems, Plan and execute Active Directory migrations, consolidations, and upgrades (of both underlying server infrastructure and overall forest/domain functional levels), Develop and maintain disaster recovery, backup, and restore procedures for AD environments (including AD Recycle Bin and authoritative restores), Monitor AD health and performance using tools such as Microsoft System Center, Azure Monitor, or third-party solutions). Deep expertise in designing, deploying, upgrading, and administering Microsoft Active Directory Domain Services (AD DS), including domain controllers, multi-domain/forest architectures, trusts, replication topologies, Group Policy Objects (GPOs), OU design, and security baselines.
Data Storage Engineer LeidosData Storage EngineerPoolesville, MD$107,900–$195,050If 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. Extensive experience administering enterprise-level data storage systems (Dell Storage Center, Dell Compellent, and Data Domain preferred) with a demonstrated understanding of the following services and technologies.
Systems Engineer LeidosSystems EngineerFrederick, MD$131,300–$237,350This may include decomposing features into workable stories, prioritizing or reprioritizing items in the backlog for upcoming sprints, refining acceptance criteria and complexity estimates or removing tickets that are no longer relevant. Leidos has an exciting opening for you, as our next TS/SCI cleared Systems Engineer, to play a critical role with design, engineering, development and deployment of software supporting the DIA-NMEC (National Media Exploitation Center) DOMEX Technology Platform (DTP).
Lead Systems Integration Engineer LeidosLead Systems Integration EngineerGlenwood, MD$87,100–$157,450TFDM program is a Federal Aviation Administration’s (FAA) NextGen program based on airport surface management provides that efficiencies for both the airport surface and terminal airspace by providing a new and comprehensive integrated surface traffic control and management system. June 3, 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.
Senior Network Engineer LeidosSenior Network EngineerAccokeek, MD$107,900–$195,050The Senior Systems Engineer will provide technical leadership and support in the areas of IT planning, solution specification/design, implementation and target architecture development for the AFNCR Consolidated Communication Center (CCC). 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.
M365 Engineer LeidosM365 EngineerBethesda, MD$107,900–$195,050Engineer, administer, and provide lifecycle support for Microsoft 365 (government community cloud (GCC) services including but not limited to: Entra ID (Azure AD), Exchange Online, Intune, Teams, Power Platform, Purview. Leidos Dig Mod Health IT division is seeking a skilled and collaborative M365 Engineer to support the HHS enterprise by managing all aspects of Microsoft 365 Government Community Cloud (GCC) Software as a Service (SAAS) offering.
Solution Architect / Engineer LeidosSolution Architect / EngineerCheltenham, MD$131,300–$237,350This role combines high level architectural design with deep technical implementation, requiring an individual who can define target-state architectures, build and optimize solutions, and guide modernization across hybrid and multi cloud environments. Proven hands-on experience designing and implementing solutions across hybrid/multi-cloud environments (AWS and Azure strongly preferred), on-premises data centers, virtualization platforms, and containerized workloads (e.g., Kubernetes/Docker).
Systems Integration Engineer LeidosSystems Integration EngineerMount Airy, MD$87,100–$157,450TFDM program is a Federal Aviation Administration’s (FAA) NextGen program based on airport surface management provides that efficiencies for both the airport surface and terminal airspace by providing a new and comprehensive integrated surface traffic control and management system. June 25, 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.
Model-Based Systems Engineer LeidosModel-Based Systems EngineerRockville, MD$69,550–$125,725Bachelor’s degree in engineering or related field with 2+ years of prior relevant experience or a master’s degree with at least a year experience in one of these areas: systems engineering, software engineering, test engineering or related field. March 30, 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.
Senior Information Security Engineer Offensive Security Verite Group, Inc.Senior Information Security Engineer Offensive SecurityMDSeeking experienced offensive security professionals to conduct security assessments, red team operations, and network exploitation activities in support of client security requirements. Bachelor Degree in Computer Science or related field is required or 5 years of direct work experience.
Information Security Engineer- Data Security Sinclair IncInformation Security Engineer- Data SecurityHunt Valley, MD$85,000–$112,500 / yearThe Company owns, operates and/or provides services to 177 television stations in 79 markets affiliated with all major broadcast networks; owns Tennis Channel, the premium destination for tennis enthusiasts; and multicast networks CHARGE, Comet, ROAR and The Nest. Additional position requirements include the ability to classify data, accurately deploying and tuning labels, triaging alerts, risk assessing AI technologies, and training staff on data security best practices.
Information Systems Security Engineer (ISSE) CymertekInformation Systems Security Engineer (ISSE)Annapolis JunctionInformation Security Engineer, Security Systems Engineer, Cybersecurity Engineer, Security Architect, Network Security Engineer, Information Assurance Engineer, Security Operations Engineer, IT Security Engineer, Systems Security Analyst, Cloud Security Engineer, ect. Cybersecurity, Information Technology, Computer Science, Information Systems, Network Engineering, Systems Engineering, Computer Engineering, Digital Forensics, Software Engineering, Electrical Engineering, ect.
Principal Information Security Engineer (supporting Naval Research Lab) ASRC Federal Holding CompanyPrincipal Information Security Engineer (supporting Naval Research Lab)MDStrong IT system and application engineering background with experience in Red Hat Enterprise Linux 8/9, Windows 11, Windows Server 2012, Active Directory Group Policy, networking, VMware vSphere 5 & 6, ESS, and ACAS. ASRC Federal System Solutions, a subsidiary of ASRC Federal, is seeking a Senior Principal Information Security Engineer to support our Prime program at Blossom Point Tracking Facility in Welcome, MD for the Naval Research Lab.
Information Systems Security Engineer ( ISSE) CACIInformation Systems Security Engineer ( ISSE)Columbia, MarylandPay 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. Participate as a security engineering representative on engineering teams for the design, development, implementation and/or integration of secure networking, computing, and enclave environments.
Senior Information Security Engineer, Offensive Security GRVTYSenior Information Security Engineer, Offensive SecurityColumbia, MD$175,000–$250,000 / yearSeeking experienced offensive security professionals to conduct security assessments, red team operations, and network exploitation activities in support of client security requirements. Pay Range: At GRVTY, we understand that compensation is influenced by many factors—such as geographic location, federal contract labor categories, wage rates, prior experience, skillsets, education, and certifications.
Information Systems Security Engineer Leidos Holdings IncInformation Systems Security EngineerCamp Springs, MD$87,100–$157,450 / yearThe AFNCR IT Services program provides support services for information systems for Headquarters Air Force (HAF), Air Force District of Washington (AFDW), Office of the Secretary of Defense (OSD), Joint Chiefs of Staff, and other Air Force activities within the AFNCR, missions to include the Pentagon, Joint Base Andrews (JBA), Joint Base Anacostia-Bolling (JBAB), and other locations, leased spaces, and alternate sites. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support.
Information Systems Security Engineer (ISSE) Set of XInformation Systems Security Engineer (ISSE)Annapolis Junction, MDFull timeWith a shared desire to give back, grow the community, and do great work, the Set of X team is building an elite group of engineers with a strong sense of shared responsibility and ownership. Participate 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.
Information Systems Security Engineer Level 1 Verite Group, Inc.Information Systems Security Engineer Level 1MDSystems running Red Hat, CentOS, SUSE and custom vendor-specific operating systems, with high-speed shared storage (lustre, and gpfs as examples), along with dedicated high-speed low latency network interconnects like Infiniband and Slingshot. This team works across organizations to provide for planning, delivery, and integration of new or additional HPC sustainment capabilities that include HPC systems, servers (cluster, SMP, MPP and SPD), and parallel file systems.
Information Systems Security Engineer ISSE 1 | TS/SCI w/ poly Security Clearance Tulzi TechnologiesInformation Systems Security Engineer ISSE 1 | TS/SCI w/ poly Security ClearanceAnnapolis JunctionApplies system security engineering expertise in one or more of the following to: system security design process; engineering life cycle; information domain; cross domain solutions; commercial off-the-shelf and government off-the-shelf cryptography; identification; authentication; and authorization; system integration; risk management; intrusion detection; contingency planning; incident handling; configuration control; change management; auditing; certification and accreditation process; principles of IA (confidentiality, integrity, non-repudiation, availability, and access control); and security testing. Support security authorization activities in compliance with NSA/CSS Information System Certification and Accreditation Process (NISCAP) and DoD Risk Management Framework (RMF), the NIST Risk Management Framework (RMF) process, and prescribed NSA/CSS business processes for security engineering.
Information System Security Engineer CymertekInformation System Security EngineerAnnapolis JunctionCybersecurity, Information Technology, Computer Science, Information Systems, Network Security, Systems Engineering, Information Assurance, Computer Engineering, Electrical Engineering, Data Science, Software Engineering, Telecommunications Engineering, etc. Cybersecurity Engineer, Security Architect, Network Security Engineer, Systems Security Engineer, IT Security Engineer, Information Assurance Engineer, Security Operations Engineer, Cyber Defense Engineer, Security Analyst, Infrastructure Security Engineer, Cloud Security Engineer, etc.
Information Systems Security Engineer 3 - TS/SCI With Poly Amentum Services IncInformation Systems Security Engineer 3 - TS/SCI With PolyLinthicum, MD$220,000–$270,000 / yearMinimum Requirements Knowledge, Skills, and Abilities Twenty (20) years of experience as an ISSE on programs and contracts of similar scope, type, and complexity to include recent experience within the last five (5) years with Cybersecurity principles and technology, including access control, authorization, identification, and authentication, PKI, network, and enterprise security architecture is required. Minimum Years of Experience Twenty (20) years of experience as an ISSE on programs and contracts of similar scope, type, and complexity to include recent experience within the last five (5) years with Cybersecurity principles and technology, including access control, authorization, identification, and authentication, PKI, network, and enterprise security architecture is required.
Information Systems Security Engineer | ISSE1 | TS/SCI w/ poly security clearance Power3 SolutionsInformation Systems Security Engineer | ISSE1 | TS/SCI w/ poly security clearanceAnnapolis JunctionApplies system security engineering expertise in one or more of the following to: system security design process; engineering life cycle; information domain; cross domain solutions; commercial off-the-shelf and government off-the-shelf cryptography; identification; authentication; and authorization; system integration; risk management; intrusion detection; contingency planning; incident handling; configuration control; change management; auditing; certification and accreditation process; principles of IA (confidentiality, integrity, non-repudiation, availability, and access control); and security testing. The Level 1 Information Systems Security Engineer (ISSE) must possess the following capabilities: -Participate as a security engineering representative on engineering teams for the design, development, implementation and/or integration of secure networking, computing, and enclave environments.
Information Systems Security Engineer ( ISSE) CACI International IncInformation Systems Security Engineer ( ISSE)Columbia, MD$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. Qualifications: Required: Twelve (12) years' experience as an ISSE on programs and contracts of similar scope, type, and complexity to include recent experience within the last five (5) years with Cybersecurity principles and technology, including: Access/control.
Information Systems Security Engineer (ISSE)-TS/SCI w/Poly PeratonInformation Systems Security Engineer (ISSE)-TS/SCI w/PolyAnnapolis Junction, Maryland$146,000–$234,000 / yearFull timeAs an Information Systems Security Engineer (ISSE), you will play a key role in securing complex systems, ensuring compliance with federal cybersecurity frameworks, and protecting sensitive information. 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.
NewInformation Systems Security Engineer - Level 1 -Security Stratum NetworksInformation Systems Security Engineer - Level 1 -SecurityMarylandHelp plan and coordinate the IT security programs and policies • Provide support for a program, organization, system, or enclave’s information assurance program • Provide security guidance and support to system developers, administrators, and owners • Provide guidance and support for directed changes related to security • Assess the security impact of changes to the system • Help maintain the Security documentation, such as SSPs • Conduct security assessments on systems in support of system authorization • Support AO/DAO, SCA, and ISSM on system Assessment and Authorization (A&A) duties to obtain and maintain ATOs • Conduct daily review of and respond to security related tickets • Utilize COTS/GOTS to communicate system status and compliance . As leading experts in their fields, our certified and highly experienced network, software development, IT support and security professionals are able to provide the necessary design, implementation, and consulting services to meet the demanding requirements of mission-critical networks.
Information Systems Security Engineer I VibrintInformation Systems Security Engineer IAnnapolis Junction, MDFull timeWorking alongside many of the most talented professionals in public service, we work tirelessly to create and sustain new solutions and services that meet the stringent demands across a variety of customer missions. Participate 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.
Information Systems Security Engineer (ISSE) TS/SCI w/Poly Peraton IncInformation Systems Security Engineer (ISSE) TS/SCI w/PolyMD$146,000–$234,000 / yearResponsibilities: As an Information Systems Security Engineer (ISSE), you will play a key role in securing complex systems, ensuring compliance with federal cybersecurity frameworks, and protecting sensitive information. 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 Level 1 – AI/ML Project TS/SCI w Poly PeratonInformation Systems Security Engineer Level 1 – AI/ML Project TS/SCI w PolyLaurel, Maryland$135,000–$216,000 / yearFull timeApplies system security engineering expertise in one or more of the following to: system security design process; engineering life cycle; information domain; cross domain solutions; commercial off-the-shelf and government off-the-shelf cryptography; identification; authentication; and authorization; system integration; risk management; intrusion detection; contingency planning: incident handling; configuration control; change management; auditing; certification and accreditation process; principles of IA (confidentiality, integrity, non-repudiation, availability, and access control); and security testing. The Level 1 Information Systems Security Engineer (ISSE) shall possess the following capabilities: Participate as a security engineering representative on engineering teams for the design, development, implementation and/or integration of secure networking, computing, and enclave environments.
Information System Security Engineer (ISSE) ProObject IncInformation System Security Engineer (ISSE)MDIf you are unable to apply through the portal and need to speak to someone about necessary accommodations to apply, please email accommodation@idsinternational.com and we will follow up with you. IDS is seeking a skilled Information System Security Engineer (ISSE) to support the Information Systems Security Division (ISSD).
Information System Security Engineer (ISSE) IDS InternationalInformation System Security Engineer (ISSE)Annapolis Junction, MDFull timeWe combine deep technical expertise with mission-driven focus to support government, military, nonprofit, and public-sector customers. This role focuses on collaborating with government stakeholders to ensure compliance with security requirements and maintain secure system operations.
Information Systems Security Engineer Level 1 GRVTYInformation Systems Security Engineer Level 1Fort Meade, MD$154,000–$164,000 / yearSystems running Red Hat, CentOS, SUSE and custom vendor-specific operating systems, with high-speed shared storage (lustre, and gpfs as examples), along with dedicated high-speed low latency network interconnects like Infiniband and Slingshot. This team works across organizations to provide for planning, delivery, and integration of new or additional HPC sustainment capabilities that include HPC systems, servers (cluster, SMP, MPP and SPD), and parallel file systems.
Senior Systems Engineer / Information Systems Security Officer (ISSO) CACISenior Systems Engineer / Information Systems Security Officer (ISSO)Fort Meade, MarylandPay 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. Join CACI as a Systems Engineer with an Information Systems Security Officer (ISSO) focus, where you will play a key role in ensuring the security, integrity, and reliability of mission‑critical systems.
Information Systems Security Engineer (ISSE I) (Government) AT&T IncInformation Systems Security Engineer (ISSE I) (Government)Columbia, MD$98,100–$175,780 / yearThis role conducts technical security assessments to identify vulnerabilities and non-compliance with Information Assurance (IA) requirements; validates security requirements; and contributes to secure-by-design solutions across networking, computer, and multi-enclave architectures with varying data protection and classification needs. The ISSE partners with system architects, developers, and stakeholders to ensure consistent application of security policy and enterprise solutions and supports risk management activities throughout the system life cycle in alignment with DoD and IC security frameworks.
Information Systems Security Engineer (TTO12) Que Technology GroupInformation Systems Security Engineer (TTO12)MarylandRequired Qualifications: Bachelors degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline and 7 years’ experience as an ISSE in programs and contracts of similar scope, type and complexity or 11 years’ experience in lieu of degree. Que Technology Group, Inc., is seeking a Information System Security Engineer to apply and employ Cyber Security expertise to information systems to ensure that the appropriate security features and safeguards are designed, integrated, and implemented for all Information Systems throughout their system development life cycle.
NewInformation System Security Engineers Artera TechnologiesInformation System Security EngineersAnnapolis Junction / Fort Meade, MDFull timeGeneral Qualifications: 14 years of IA System Architect and Engineer (IASAE) experience, to include recent experience within the last five years, with Defense-in-Depth principles and technology, including access/control, authorization, identification and authentication, Public Key Infrastructure (PKI), network and enterprise security architecture. We specialize in Computer Network Operations (CNO), embedded development, software engineering, cloud engineering, Artificial Intelligence and Machine Learning (AI/ML), DevOps support, systems engineering and more.
Senior Information Systems Security Engineer (Sr. ISSE) Helm Point SolutionsSenior Information Systems Security Engineer (Sr. ISSE)MarylandHelm Point Solutions is a woman-owned cybersecurity and physical security firm committed to protecting the infrastructure that underpins national security. Perform security-focused system/network designs that span multiple enclaves and data classifications.
Information Systems Security Engineer (ISSE) - Skill Level 1 Kaizen Approach, Inc.Information Systems Security Engineer (ISSE) - Skill Level 1MDMust have a bachelor's degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university, OR 11 years of Information Systems Security Engineer experience if a degree is not held, and must meet DoD 8570 compliance with IASAE Level 2. Active TS/SCI clearance with Polygraph is required. Requirements: Must have the ability to participate as a security engineering representative on engineering teams for the design, development, implementation, evaluation, and integration of secure networking, computing, and enclave environments, including serving as the primary representative when required.
Information Systems Security Engineer Level 1 - AI/ML Project TS/SCI w Poly Peraton IncInformation Systems Security Engineer Level 1 - AI/ML Project TS/SCI w PolyLaurel, MD$135,000–$216,000 / yearApplies system security engineering expertise in one or more of the following to: system security design process; engineering life cycle; information domain; cross domain solutions; commercial off-the-shelf and government off-the-shelf cryptography; identification; authentication; and authorization; system integration; risk management; intrusion detection; contingency planning: incident handling; configuration control; change management; auditing; certification and accreditation process; principles of IA (confidentiality, integrity, non-repudiation, availability, and access control); and security testing. The Level 1 Information Systems Security Engineer (ISSE) shall possess the following capabilities: Participate as a security engineering representative on engineering teams for the design, development, implementation and/or integration of secure networking, computing, and enclave environments.
Information Systems Security Engineer 1 UnisityInformation Systems Security Engineer 1Annapolis Junction, MarylandApplies system security engineering expertise in one or more of the following to: system security design process; engineering life cycle; information domain; cross domain solutions; commercial off-the-shelf and government off-the-shelf cryptography; identification; authentication; and authorization; system integration; risk management; intrusion detection; contingency planning; incident handling; configuration control; change management; auditing; certification and accreditation process; principles of IA (confidentiality, integrity, non-repudiation, availability, and access control); and security testing. The Level 1 Information Systems Security Engineer (ISSE) must possess the following skills and experience: Participate as a security engineering representative on engineering teams for the design, development, implementation and/or integration of secure networking, computing, and enclave environments.
Information Systems Security Engineer (All Levels) AdapticInformation Systems Security Engineer (All Levels)Annapolis Junction, MDWhether you're early in your career or leading security engineering efforts, we're looking for Information Systems Security Engineers at all levels who understand how to balance security, performance, and mission needs. Supporting the DoD and Intelligence Community, you'll help ensure systems are resilient, compliant, and built to withstand evolving threats.
Information Systems Security Engineer (ISSE) - Skill Level 3 Kaizen Approach, Inc.Information Systems Security Engineer (ISSE) - Skill Level 3MDMust have twenty years of experience as an Information Systems Security Engineer supporting programs and contracts of similar scope, type, and complexity, including recent experience within the last five years with Cybersecurity principles and technologies such as access control, authorization, identification and authentication, public key infrastructure, and network and enterprise security architecture, or eighteen years of experience with a qualifying master's degree, or twenty-four years of ISSE experience if no bachelor's degree is held. • Must have a bachelor's degree in Computer Science, Information Assurance, Information Security System Engineering, or a related discipline from an accredited college or university, or four additional years of ISSE experience may be substituted for the degree, and must be DoD 8570 compliant with IASAE III, including CISSP-ISSEP certification for CWIP IASAE III compliance.
Senior Information Systems Security Engineer (ISSE) Power3 SolutionsSenior Information Systems Security Engineer (ISSE)MarylandPower3 Solutions is supporting a cybersecurity and physical security firm committed to protecting the infrastructure that underpins national security. 14+ years of IA System Architecture and Engineering (IASAE) experience, including the last 5 years working with defense-in-depth technologies.
Information System Security Engineer (ISSE) IDS International Government Services LLCInformation System Security Engineer (ISSE)MDWe combine deep technical expertise with mission-driven focus to support government, military, nonprofit, and public-sector customers. This role focuses on collaborating with government stakeholders to ensure compliance with security requirements and maintain secure system operations.
Information Systems Security Engineer (ISSE) Dobbs Defense Solutions, LLCInformation Systems Security Engineer (ISSE)Landover, MDFull timeThis role partners closely with system administrators, network engineers, Information System Security Officers (ISSOs), and application teams to strengthen cybersecurity posture, support continuous monitoring, and protect mission-critical systems. Hands-on experience administering Tenable Nessus, CyberArk, Trellix, Splunk Enterprise, VMware vSphere, GitLab, Microsoft Windows Server, Red Hat Enterprise Linux, and Ubuntu Linux.
Principal Information Systems Security Engineer Leidos Holdings IncPrincipal Information Systems Security EngineerMD$154,050–$278,475 / yearValidates and verifies system security requirements definitions and analysis and establishes system security designDesigns, develops, implements and/or integrates IA and security systems and system components including those for networking, computing and enclave environment to include those with multiple enclaves and with differing data protection/classification requirementsAssist architects and systems developers in the identification and implementation of appropriate information security functionality to ensure uniform application of Agency security policy and enterprise solutionsContributes to the security planning, assessment, risk analysis, risk management, certification and awareness activities for system and networking operationsReviews C&A documentation, providing feedback on completeness and compliance of its contentCLEARANCE REQUIRED: Active TS/SCI with polygraph. QualificationsBachelor 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 spaceCISSP - ISSEPStrong writing skillsConfidence and ability to present briefing to senior level DoD officials in both prepared briefings and/or in ad hoc discussions.
Information Systems Security Engineer (ISSE) SME Leidos Holdings IncInformation Systems Security Engineer (ISSE) SMEBethesda, MD$154,050–$278,475 / yearThe ISSE collaborates with multidisciplinary teams - including Information Systems Security Managers (ISSMs), software developers, systems engineers, and government stakeholders-to integrate effective security controls and ensure systems remain resilient against evolving threats and vulnerabilities. Primary Responsibilities: Applying system security engineering principles in areas such as system security design, lifecycle engineering, authentication and authorization mechanisms, cryptography, intrusion detection, contingency planning, incident handling, auditing, configuration management, and change control.