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3097 information system security engineer jobs found

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SAIC
Jun 01, 2026
Information System Security Engineer
SAIC VA
Description SAIC is seeking an Information System Security Engineer (ISSE) to join our team. This position is in Arlington, VA and requires an active Top Secret/SCI clearance . Job responsibilities include, but are not limited to: Implement and maintain cybersecurity controls in accordance with DoD policies, including NIST SP 800-53, RMF, and applicable STIGs. Monitor network and system security, analyze security events, and respond to incidents in a timely manner. Conduct vulnerability assessments and remediation activities using approved DoD tools and processes. Collaborate with IT, engineering, and program teams to ensure security requirements are integrated into system designs and operations. Assist in the preparation, review, and maintenance of security documentation, including System Security Plans (SSPs), Plan of Action & Milestones (POA&Ms), and risk assessments. Support the Risk Management Framework (RMF) process for system...
LMI
Mar 16, 2026
Information System Security Engineer (ISSE) AWS Cloud Security - Clearance Required
LMI NC
Overview LMI is seeking a skilled Information System Security Engineer (ISSE) with hands-on experience in AWS cloud security to provide advanced cybersecurity engineering and Risk Management Framework (RMF) support for Department of Defense (DoD) cloud-based systems. This position focuses on designing, implementing, and maintaining secure AWS environments aligned with DoD Cloud Computing Security Requirements Guide (CC SRG), NIST SP 800-53, and DISA STIGs/SRGs to support Authorization to Operate (ATO) efforts.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.   Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government,...
SAIC
Mar 11, 2026
Information System Security Engineer
SAIC VA
Description SAIC is seeking an Information System Security Engineer (ISSE) to provide information security support. This position is in McLean, VA and requires an active TS/SCI clearance with Polygraph . This Customer's office is the force of choice for the development of global infrastructure and delivery of solutions that drive influence operations. If you have specialized skills in information security and tech ops, this is the role for you. Job responsibilities include, but are not limited to: Support the Lifecycle Assessment and Authorization (A&A) process. Develop a Systems Security Plan (SSP). Assist and maintain a formal Information Security Program that includes recommendations on continuous improvement of the processes and architectures. Maintain and make accessible documentation of all operational and business process activities in the form of Standard Operating Procedures (SOPs). Monitor and track projects in the A&A queue....
SAIC
Jun 08, 2026
IT Systems Security Engineer
SAIC CO
Description Join SAIC's team and play a pivotal role in defending North America. We are seeking an experienced Information System Security Engineer (ISSE) to lead cybersecurity and compliance efforts for the critical North American Aerospace Defense Command and United States Northern Command (N-NC) Information Technology (IT) Enterprise Services (NITES) contract. In this role, you will ensure that customer systems remain secure, compliant, and mission-ready for any challenge. The ISSE is responsible for designing, developing, and implementing secure information systems that support mission operations. You will collaborate with multidisciplinary teams, including Information Systems Security Managers (ISSMs), systems engineers, and government stakeholders, to integrate effective security controls and ensure systems remain resilient against evolving threats and vulnerabilities. Responsibilities The selected candidate will be responsible for the following: Apply system...
Lockheed Martin
May 23, 2026
Information System Security Officer, Classified Cybersecurity
Lockheed Martin Sunnyvale, CA
Description: A Final Secret clearance is required to start with ability to obtain Top Secret clearance. Classified Cybersecurity ISSOs help secure lifesaving products and critical state-of-the-art engineering and manufacturing systems by applying cutting edge cybersecurity principles. Rising to the challenge of building a more secure world for the warfighter, space exploration, climate sustainability and commercial use. This position will perform duties as a Information Systems Security Officer at the Lockheed Martin Space facility in Sunnyvale, CA. The work that ISSOs do can be summarized in this way: - You will have a direct impact to national security, ultimately contributing to protecting your loved ones – this is dynamic, gratifying and impactful work! - You will have the opportunity to engage in all aspects of the cyber discipline - You can enjoy a work-life balance that allows for flex hours and a family-first culture. Key Responsibilities of this role includes: -...
Lockheed Martin
May 02, 2026
Information Systems Security Officer, Classified Cybersecurity
Lockheed Martin King of Prussia, PA
Description: Top Secret security clearance with ability to obtain SCI Eligibility and Polygraph. This position will perform duties as a Classified Cybersecurity Information Systems Security Officer (ISSO) for systems located at the LM Space facility in Valley Forge PA. The work that Cybersecurity ISSO’s do can be summarized in this way: - You will have a direct impact to national security, ultimately contributing to protecting your loved ones – this is dynamic, gratifying and impactful work! - You will have the opportunity to engage in all aspects of the cyber discipline - You can enjoy a work-life balance that allows for flex hours and a family-first culture. Key Responsibilities of this role includes: - Oversee day-to-day information system security operations including hardware and software implementations. - Carry out technical administration of IS in accordance with internal LM and customer security requirements, primarily Risk Management Framework (RMF). - Upkeep,...
Lockheed Martin
Apr 21, 2026
Information System Security Officer, Classified Cybersecurity
Lockheed Martin Herndon, VA
Description: This position requires TS/SCI clearance with the ability to obtain a CI polygraph. This position will perform duties as an Information Systems Security Officer at the Lockheed Martin Space facility in Herndon, Virginia. Candidates will typically have a Bachelor's Degree and 1+ years of experience. The work that ISSOs do can be summarized in this way: - You will have a direct impact to national security, ultimately contributing to protecting your loved ones – this is dynamic, gratifying and impactful work! - You will have the opportunity to engage in all aspects of the cyber discipline. - You can enjoy a work-life balance that allows for flex hours and a family-first culture. Key Responsibilities of this role includes: - Support day-to-day information system security operations including hardware and software implementations. - Carry out technical security administration of IS in accordance with internal LM and customer cybersecurity requirements, primarily the...
LMI
Apr 08, 2026
Army Information Systems Security Engineer (ISSE)
LMI Remote, UNAVAILABLE
Overview LMI, a consultancy dedicated to supporting government transformation and readiness, is seeking a skilled Information Systems Security Engineer (ISSE) to support the Naval Autonomous Data Collection System (NADACS) portfolio. Utilizing a blend of digital solutions, analytics, and security expertise, this role focuses on advancing mission success for the U.S. Army by providing robust system security engineering and cyber compliance solutions. Join LMI’s team and contribute to the secure deployment and modernization of NADACS—pivotal to U.S. Army operations and logistics. This role offers the chance to shape security processes, influence system compliance, and enable mission success through advanced cybersecurity solutions. Extensive collaboration and technical expertise are key for a security-first approach in protecting critical DoD systems. This position requires a  Secret clearance .   LMI is a new breed of digital solutions provider dedicated to...
Arrow Electronics
Jun 08, 2026
Industrial Cybersecurity Engineer - Embedded/DevSecops
Arrow Electronics Pune, Maharashtra, India
Position: Industrial Cybersecurity Engineer - Embedded/DevSecops Job Description: Key Responsibilities •    Conduct vulnerability assessments, coordinate penetration testing activities, and perform risk analysis. •    Support secure system architecture reviews and threat modeling initiatives. •    Enforce organizational security policies, standards, and procedures. •    Investigate security incidents and lead root cause analysis along with remediation actions. •    Ensure alignment with relevant standards such as IEC 62443, EN18031, and ISO 27001. •    Support cybersecurity compliance initiatives including IEC 62443, EU CRA, ISO 27001, and NIST frameworks. •    Maintain security documentation, playbooks, and incident response plans. •    Ensure secure design principles are applied, including least privilege, defense in depth, and secure defaults. •    Validate secure implementation of requirements and mitigation strategies. •    Perform security testing on firmware...
General Dynamics Mission Systems, Inc
Jun 08, 2026
26-025 Advanced Software Engineer
General Dynamics Mission Systems, Inc Huntsville, AL
Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience. Agile experience preferred.     CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: Relocation assistance available.   As a Performance Assessment Engineer, you will be part of a team developing software tools and conducting in-depth analysis to evaluate and enhance the performance of Command and Control, Battle...
General Dynamics Mission Systems, Inc
Jun 08, 2026
Software Engineer – Entry Level
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science, Engineering or Mathematics field. Agile experience preferred.     CLEARANCE REQUIREMENTS: : Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Key Responsibilities:   Develop and maintain software for Payload Control Systems Collaborate with cross-functional teams to design and integrate software solutions Troubleshoot and resolve software issues to ensure optimal system performance Participate in code reviews and contribute to continuous improvement of software development practices   What Sets You Apart: • Identifies...
General Dynamics Mission Systems, Inc
Jun 08, 2026
Systems Engineer - FCS Aux & Training
General Dynamics Mission Systems, Inc Pittsfield, MA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months of job-related experience. Agile experience preferred,   CLEARANCE REQUIREMENTS: : Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: As a systems engineer for Fleet Ballistic Missile Auxiliary and Training Systems , you’ll be a member of a cross functional team responsible for development, production, installation and sustainment support of the Ohio-class and...
General Dynamics Mission Systems, Inc
Jun 08, 2026
CWL Deputy Chief Engineer (Sr Advanced Systems Engineer)
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 8+ years of job-related experience, or a Master's degree plus 6 years of job-related experience. Agile experience preferred.     CLEARANCE REQUIREMENTS: : Department of Defense Secret security clearance is ontainable within a reasonable time from hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Duties and Responsibilities Coordinates requirements development, hardware/software design, verification, and validation activities Manages technical deliverables and coordinates technical review boards to review decisions with broad program...
General Dynamics Mission Systems, Inc
Jun 08, 2026
Advanced SW Engineer – TS Required - $5,000 Sign-On Bonus
General Dynamics Mission Systems, Inc Dedham, MA
Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience. Agile experience preferred.   CLEARANCE REQUIREMENTS: Department of Defense Top Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: As a software engineer for Maritime and Strategic Systems, you’ll be a member of a cross functional team responsible for Design, Development, and Test of a Strategic Deterrent System.   We encourage you to apply if you have...
General Dynamics Mission Systems, Inc
Jun 08, 2026
26-168 C2BMC Global - SE&V Systems Engineer
General Dynamics Mission Systems, Inc Colorado Springs, CO
Basic Qualifications Requires a Bachelor’s or Technology degree in Engineering or a related specialized area/field, or equivalent (4 years job-related experience). Requires an additional 5+ years of job-related experience, or a Master's degree with 3+ years of job-related experience. CLEARANCE REQUIREMENTS: Department of Defense Top Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position   Job Overview We are seeking a highly skilled Systems Engineer to support early‑phase activities (concept, requirements, and design) within the Systems‑Engineering Development Lifecycle for the C2BMC program. In this role, you will lead system concept...
General Dynamics Mission Systems, Inc
Jun 08, 2026
Systems Engineer – Entry Level
General Dynamics Mission Systems, Inc Pittsfield, MA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering or Mathematics field. Also requires one year of experience, or a Master's degree. Agile experience preferred.   CLEARANCE REQUIREMENTS: : Department of Defense Secret security clearance is obtainable within a reasonable amount of time after hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: As a systems engineer for the Strategic Weapons Control portfolio, you’ll be a member of a cross functional team responsible for developing and maintaining a unique data processing system supporting the existing and next-generation strategic submarine fleet.   We...
General Dynamics Mission Systems, Inc
Jun 08, 2026
Analog & Power Electrical Hardware Engineer
General Dynamics Mission Systems, Inc Pittsfield, MA
Basic Qualifications Requires a Bachelor’s degree in Reliability, Electrical, Mechanical or Materials Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months of job-related experience.     CLEARANCE REQUIREMENTS: : Department of Defense Secret security clearance is obtainable within a reasonable amount of time after hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Duties and Tasks: As a member of the Power and Analog Hardware group, you will be involved in all program phases, including: • Electrical requirements analysis, functional analysis, performance analysis (e.g. timing,...
General Dynamics Mission Systems, Inc
Jun 08, 2026
Advanced Systems Engineer – CMOSS Mounted Form Factor (CMFF)
General Dynamics Mission Systems, Inc Taunton, MA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months of job-related experience.   CLEARANCE REQUIREMENTS: Ability to obtain a Department of Defense Secret security clearance is required  at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES:   Join our dynamic CMOSS Mounted Form Factor (CMFF) team as a Systems Engineer and play a key role in delivering cutting-edge integrated systems solutions. As part of a collaborative, cross-functional team, you will contribute across all aspects...
General Dynamics Mission Systems, Inc
Jun 08, 2026
Sr Software Engineer - C++/Java - Active Secret clearance
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience. Agile experience preferred.     CLEARANCE REQUIREMENTS:  Department of Defense Secret security clearance is required at time of hire . Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required . Responsibilities for this Position At General Dynamics Mission Systems, we build advanced technologies that keep our nation safe and our warfighters prepared. Our engineers tackle some of the most complex and consequential challenges in defense, delivering solutions that redefine innovation and make a...
General Dynamics Mission Systems, Inc
Jun 08, 2026
MDA Systems Engineer | Systems Design and Requirements Capability
General Dynamics Mission Systems, Inc Huntsville, AL
Basic Qualifications Bachelor's degree in Systems Engineering, or a related Science, Engineering or Mathematics field, plus a minimum of 2 years of relevant experience; or Master's degree, plus 6 months of relevant experience.   CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position JOB DESCRIPTION: The System Engineering & Integration Team (SE&IT) is seeking a Systems Engineer to join the System Design and Requirements Capability team in Huntsville, AL. The successful candidate will support cross-functional teams to develop system level architecture and requirements to influence Missile...
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