March 16, 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 selected individual will lead all security engineering efforts for a large, complex network environment with geographically distributed systems; and will manage a team of Information Systems Security Officers (ISSOs) and Information Systems Security Engineers (ISSEs), providing technical leadership and direction to meet program requirements.
Springfield, VA30+ days ago
Designs and implements information assurance and security engineering systems with requirements of business continuity, operations security, cryptography, forensics, regulatory compliance, internal counter-espionage (insider threat detection and mitigation), physical security analysis (including facilities analysis, and security management). Information Assurance Engineer 4: 9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; or High School Diploma or equivalent and 13 years relevant experience.
The ideal candidate will have a robust background in security engineering, extensive experience with Department of Defense (DoD) and Intelligence Community (IC) security frameworks, and a proven track record in implementing security practices throughout the System/Software Development Life Cycle (SDLC). 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.
li>Continuous Monitoring and Compliance: Deploy and maintain Enterprise-wide network-based scanning and reporting tools (e.g., HBSS/ESS, ACAS, RedSeal, Evaluate-STIG, SteelCloud ConfigOS, STIG Manager, etc.) to support compliance testing and continuous monitoring. The ideal candidate will have a robust background in security engineering, with extensive experience in implementing and managing security protocols and frameworks within the Department of Defense (DoD), Intelligence Community (IC), and other relevant government entities.
p>Minimum Requirements (Knowledge, Skills, and Abilities): - Minimum of 7 years of experience collectively with the following:
- Proven work experience as an Information Systems Security Officer or a similar role, preferably in a complex organizational setting. The entire section leverages agile and works to provide enhanced reporting and global searching capabilities to facilitate task management, cross-utilization, and address national intelligence priorities while protecting confidential data and sources.
The entire section leverages agile and works to provide enhanced reporting and global searching capabilities to facilitate task management, cross-utilization, and address national intelligence priorities while protecting confidential data and sources. As appropriate, each employee is responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams.
Pay Range
$175,000—$250,000 USD
Why Choose GRVTY.
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.
p>Seeking 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.
In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. The Lead Information Security Engineer will serve as a technical expert, designing and implementing DDoS Mitigation for Federal Customers and providing subject matter expertise on worldwide DDoS threats.
li>Build and administer core network and systems security controls, including: Next Gen firewalls, ZTNA - Zero Trust Network Architecture, intrusion detection and prevention, anti-malware, application whitelisting, host intrusion prevention, endpoint detection and response (EDR), vulnerability scanners, content monitoring/filtering, and security monitoring (SIEM). This role is responsible for managing the controls that protect the organization''s computer networks, systems, and data from cyberattacks, working closely with IT teams to identify, assess, and mitigate security risks, and supporting incident response to contain the damage from security incidents and prevent future attacks.
Chantilly, VA30+ days ago
p>The typical day for an ISSE supporting the cloud-based applications is as follows:
Washington, DC, DC15 days ago
Define, implement, assess, and maintain controls necessary to protect software, applications, networks, hardware, systems, and mobile devices in accordance with security requirements. This position manages the security and integrity of the Firm's information systems throughout their lifecycle and ensures that systems are secure during operations and is a primary technical point of contact for other Firm departments.
Master's degree in Computer Science or a related field.
LT Consulting is seeking an Information Security (INFOSEC) Engineer responsible for maintaining the integrity and security of enterprise-wide cyber systems and networks.
ASRC Federal Technology Solutions is seeking an Information System Security Officer (ISSO) to support cybersecurity governance, risk management, and compliance activities for systems within the Department of Justice - Office of Justice Programs (OJP). Support continuous monitoring activities, including review of security controls, account management, audit logs, and security impact assessments.
Preferred Qualifications: Experience with BigFix, Nutanix, Splunk, Tenable Security Center, Security Compliance Checker, Security Technical Implementation Guide (STIG) Viewer, NMAP, Nipper, Wireshark, Microsoft Defender for Endpoint, RSA Authentication Manager, Microsoft Windows Active Directory, CISCO Firepower Management Center. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses.
Columbia, Maryland25 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.
- Participate as a security engineering representative on engineering teams for the design, development, implementation and/or integration of secure networking, computing, and enclave environments.
Sterling, Virginia30+ days ago
Working on this team means directly supporting the nation's cybersecurity defenders by ensuring they have reliable, scalable, and secure cloud infrastructure available within hours of a cyber incident—helping protect America's digital infrastructure when it matters most. As part of the Engagement Support Services (ESS) contract, this program enables analysts to quickly access the tools and environments they need to investigate cyber threats affecting federal agencies, state and local governments, and critical infrastructure.
If you''ve written detections for DCSync, built hunting pipelines around Kerberos ticket anomalies, or reverse-engineered a novel persistence mechanism in a Windows kernel driver, this is the team you want to be on. We want every Palantirian to achieve their best outcomes, that's why we celebrate individuals' strengths, skills, and interests, from your first interview to your longterm growth, rather than rely on traditional career ladders.
ul>Deep, working knowledge of DLP architecture: endpoint agents, network inspection, cloud API integrations, policy engines, and content-aware detection across structured and unstructured data. We''re looking for someone who has spent years thinking adversarially about how sensitive data moves, leaks, and gets exfiltrated - not just enforcing policies, but understanding every layer of how data can be abused, detected, and protected.
By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. We want every Palantirian to achieve their best outcomes, that's why we celebrate individuals' strengths, skills, and interests, from your first interview to your longterm growth, rather than rely on traditional career ladders.
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. 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.
Annapolis Junction, Maryland30+ days ago
li style="margin-left:0.25in;font-family:'arial' , 'helvetica' , sans-serif;font-size:12pt">Bachelor’s degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline is required. 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.
Preferred Qualifications: Experience with BigFix, Nutanix, Splunk, Tenable Security Center, Security Compliance Checker, Security Technical Implementation Guide (STIG) Viewer, NMAP, Nipper, Wireshark, Microsoft Defender for Endpoint, RSA Authentication Manager, Microsoft Windows Active Directory, CISCO Firepower Management Center. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses.
Laurel, Maryland19 days ago
p style="margin:0px">Applies 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 .
li>Hands on engineering experience with: host and container hardening; Kubernetes security (RBAC/NetworkPolicies, PodSecurity, image signing); cloud platform security (AWS/Azure/GCP IAM and network controls); and security tools such as encryption technologies, intrusion detection/prevention, EDR, and penetration testing frameworks. The ideal candidate brings a strong systems and security engineering background (Linux/Windows, containers/Kubernetes, networking, identity, and cloud), experience architecting security patterns and automating enforcement (Terraform/Ansible, Python/PowerShell/Bash), and a practical understanding of how engineering enables ATO readiness in high tempo environments.
p>Candidate Resources Chantilly Charleston Colorado Springs Crane El Segundo Fort Meade Hampton Roads Hawaii Huntsville Reston San Diego Southern Maryland St. Louis Washington DC View All Locations Business Management Cyber Cloud Data Science DevSecOps Electrical Engineering Mechanical Engineering Network Engineering Software Engineering Systems Engineering Technical Support View All Career Fields. Please apply through the internal career site here > Address 12010 Sunset Hills Road Reston VA Facebook Page Instagram Feed X Feed Linkedin Page Youtube Page What We Do Mission IT Engineering Services Enterprise IT Professional Services Who We Serve Federal Civilian State and Local Defense Intelligence Community Space Contracts Who We Are About SAIC Investors Newsroom National Imperatives Partnerships Suppliers and Small Business Careers Employee Tools Contact Us 2025 SAIC.
Washington, DC30+ days ago
p style="margin-bottom:26px">We are seeking a Mid Level ISSE to carry out the following duties and responsibilities: - Services to support Information System Engineering performed by the Information System Security Engineer (ISSE) at a minimum, shall consist of the following activities:
- Identify information protection needs for an IS and Network Environment.
- Minimum 5 years’ experience, or equivalent education/experience; Doctorate plus 4 years; Master’s plus 3 years; Associates plus 7 years; or H.S./GED plus 10 years.
Elkridge, Washington12 days ago
div>*Position is currently located in Elkridge, MD and will relocate to another site in the National Capital Region in Summer 2026*
Transform technology into opportunity as a Cybersecurity Systems Engineer/Information Systems Security Engineer (ISSE). USA MD Elkridge
Total Rewards at GDIT:.
Sterling, Virginia30+ days ago
Security Engineering: Designs security architectures from requirements phase, defining system security requirements, and integrating capabilities including Zero Trust Architecture Software Defined Networking (SDN), macro/micro-segmentation, and software-defined perimeter controls to enable continuous verification and minimize network attack surfaces. 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.
Reston, Virginia16 days ago
Apply 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. Mantis Security is a leading specialty firm of high caliber talent who specialize in Cyber Operations, Cyber Defense, Information Assurance, Software Development, DevSecOps, Security Engineering, and Cloud Engineering.
Washington, DC30+ days ago
Evans & Chambers Technology (EC) is seeking an experienced Information Systems Security Engineer (ISSE) to support a technical development program centered on cloud-based applications and associated infrastructure operating in a highly secure, classified network environment. The ISSE will integrate directly into a multidisciplinary team that includes software developers, systems engineers, DevOps engineers, database administrators, and systems architects.
li>Must 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.
Annapolis Junction, MD30+ days ago
p>Whether 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.
Springfield, Virginia1 day ago
ul class="[li_&]:mb-0 [li_&]:mt-1 [li_&]:gap-1 [&:not(:last-child)_ul]:pb-1 [&:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3">Advise on system design and architecture from a security-first perspective — working with developers, engineers, and project managers to build protection in from day one. - 10+ years of experience in information security, data security administration, or a related discipline.
Falls Church, VA30+ days ago
p>Key Responsibilities: KBR seeks an Information Systems Security Engineer to serve as the Program Office's information security professional responsible for managing all aspects of an organization's information security system, including researching, testing, training, and implementing programs designed to safeguard sensitive information from possible compromise.
The ISSE works with System Engineering teams to incorporate cyber resiliency objectives, techniques, and design principles into all system engineering and development efforts throughout the systems development life cycle (SDLC).
The 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.
Validates 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.
McLean, Virginia30+ days ago
p>· Experience: A minimum of 5-8 years of experience in information security engineering, system administration, and/or cybersecurity, with hands-on experience in implementing security controls and supporting authorization processes. · Collaboration and Guidance: Serve as a subject matter expert, providing guidance to development, engineering, and program teams on secure design, development, and secure coding techniques.
Must 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.
Must have twelve 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 sixteen years of ISSE experience if no bachelor's degree is held. Requirements:
• Must have the ability to participate as the primary security engineering representative on engineering teams supporting the design, development, implementation, evaluation, and integration of secure networking, computing, and enclave environments, including Cybersecurity architectures, systems, and system components.
li>Security Engineering: Designs security architectures from requirements phase, defining system security requirements, and integrating capabilities including Zero Trust Architecture Software Defined Networking (SDN), macro/micro-segmentation, and software-defined perimeter controls to enable continuous verification and minimize network attack surfaces. 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.
Fort Meade, MD30+ days ago
Our dynamic team delivers information security solutions that facilitate secure data flows and the detection/prevention of unauthorized behaviors, performs system security vulnerability assessments and solution development, and provides enterprise-level network, server, desktop, and application security services. Benefits: 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 participation in an attractive bonus plan.
p>Certified Intrusion analyst (GCIAs), GIAC Certified Enterprise Defender (GCED), Certified Geographic Information Systems Professional (GISP), GIAC Certified Incident Handler (GCIH), Certified Information Systems Security Professional (CISSP), Certified Secure Software Lifecycle Professional (CSSLP), Certified Information Systems Auditor (CISA), and/or Security+ certification, Mainframe Technology, Programming language or languages (for example, Java, C/C++, NET, Rexx, Cobol, Powershell), SAP, Version control software (for example, Subversion, Git, Librarian), Working as a project or team lead, Writing SQL queries in a database platform (for example, Oracle, DB2, SQL Server). Bachelor's degree in Computer Science, Information Technology, or related field and 3 years'' experience in information technology within the past 7 years OR 5 years'' experience in information technology or related field within the past 7 years OR a Master''s degree in Computer Science, Information Technology, or related field.
Linthicum, MD30+ days ago
p>Minimum 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.
Chantilly, Virginia18 days ago
li>Develop 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. Minimum of three (3) years of experience supporting Information System Security Engineering (ISSE), cybersecurity engineering, information assurance, risk management, or related cybersecurity disciplines.
Herndon, Virginia30+ days ago
This role is designed for a hands-on security engineer with strong architecture and implementation experience who can partner directly with infrastructure, platform, and product teams to design and build secure systems. Exostar’s cloud-based platforms create exclusive communities within the Aerospace and Defense, Life Sciences, and other highly regulated industries where members securely collaborate, share information, and operate compliantly.
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The ideal candidate will possess experience supporting Risk Management Framework (RMF) activities, security engineering, vulnerability management, security testing, and system authorization efforts within complex federal environments. The selected candidate will work closely with system owners, cybersecurity personnel, engineers, architects, and government stakeholders to ensure systems meet federal cybersecurity requirements while supporting mission objectives.
This individual will serve as a senior cybersecurity and security engineering professional responsible for designing, implementing, assessing, and maintaining security controls that protect enterprise systems, applications, and infrastructure supporting critical mission operations. The ideal candidate will possess strong technical leadership capabilities and the ability to evaluate security risks, develop mitigation strategies, and guide engineering teams in implementing effective security solutions.