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Information Systems Security Engineer (ISSE)

Data Intelligence, LLC
Philadelphia, PA Full Time
POSTED ON 10/14/2026
AVAILABLE BEFORE 11/13/2026

Data Intelligence, LLC (DI) is searching for a full time Information Systems Security Engineer (ISSE) to support its NSWC-PD Naval Nuclear Propulsion Program effort. This position is fully on-site and requires a current, active security clearance (secret or higher). Successful candidates for this position will be strong with technical systems, systems administration, and information systems security.


Most candidates hired into this role start between $120,000 and $135,000 per year, based on experience.


Job Responsibilities:

  • Perform Assured Compliance Assessment Solution (ACAS) vulnerability scanning.
  • Perform system patching, maintenance, and security updates.
  • Implement, maintain, and remediate DISA Security Technical Implementation Guides (STIGs).
  • Research, evaluate, and test mitigation strategies for residual cybersecurity risks.
  • Create, maintain, and update system images.
  • Develop scripts to automate system administration and maintenance functions.
  • Maintain system hardware and software inventories.
  • Perform system backup and recovery activities.
  • Support network cabling and related system connectivity activities.
  • Provide guidance and technical input for software installation and configuration, including DOORS software.
  • Perform Windows system administration.
  • Perform Linux system administration.
  • Complete recurring monthly, quarterly, and annual system/security tasks as required.
  • Prepare and provide monthly status updates.
  • Support additional system administration and cybersecurity engineering activities as required.

Required Skills/Experience:

  • 4 years of relevant experience, especially related to system administration
  • Strong system administration skills in both Windows and Linux environments
  • Experience administering, maintaining, and troubleshooting enterprise IT systems.
  • Experience with vulnerability scanning and remediation (ACAS/Nessus preferred)
  • STIG experience including implementation, assessment, and remediation.
  • Experience with system patching and software maintenance.
  • Experience creating, maintaining, or updating system images.
  • Ability to troubleshoot cybersecurity and system configuration issues and develop appropriate mitigation strategies.
  • Experience with system backup and recovery processes.
  • Scripting experience for system administration or automation tasks.
  • Understanding of system and software inventory management.
  • Ability to work hands-on with both cybersecurity requirements and system administration.
  • Experience supporting security compliance activities in both Windows and Linux environments.
  • Familiarity with IBM DOORS and/or supporting the installation and configuration of software applications.

Experience in the following are considered a plus:

  • Experience supporting U.S. Navy, DoD, or other government systems.
  • Experience working in an Information Systems Security Engineer (ISSE), cybersecurity engineering, systems administration, or similar technical capacity.


About Data Intelligence, LLC:

Data Intelligence, LLC (DI) is a small business that provides Information Technology System Development (Agile, DevSecOps, Cloud Platform support) Cybersecurity (RMF, Security Engineering, Cross Domain Solutions), Tactical Data Link Standards Development and Testing, and Logistics/Warehousing services to U.S. federal clients both CONUS and OCONUS. DI consistently demonstrates exceptional customer service, maintains an employee-centric culture, and delivers hands-on technical expertise to help our clients achieve their mission.


Since 2005, DI has successfully provided IT Systems Engineering, Software Development, Cybersecurity, and supporting solutions and services to customers that include the Department of Defense, Intelligence, and Federal Civilian clients. Current clients include the US Navy, Air Force, Army, Marine Corps, Coast Guard, National Geospatial-Intelligence Agency, Defense Logistics Agency, and The Department of Homeland Security. DI is headquartered in Marlton, New Jersey, with satellite offices in California, Maryland, Ohio, Pennsylvania, Virginia, and Washington, D.C.


Why you should join us:

Data Intelligence offers competitive salaries, comprehensive benefits, a team-oriented environment, and opportunities for advancement. Our excellent employee retention record reflects our employee focus. We work with Veteran’s organization to proactively hire those who have served our country. We offer medical, dental and vision insurance, 401k, PTO and 11 paid holidays.

Data Intelligence is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, age, color, religion, creed, sex, sexual orientation, gender identity, national origin, disability, or protected Veteran status.


Salary : $120,000 - $135,000

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