Information System Security Engineer ISSE III

We are an employee-centric company that truly appreciates our team members and their value to our customers and the missions they support. We pride ourselves on being forward-leaning thinkers and fostering teams that are and continue to be technically proficient and technically capable across a comprehensive range of cyber mission areas. OneZero full-time employees receive an extremely competitive benefits package that includes health / dental / vision / life insurance plans, 401K with company matching, PTO & paid holidays, employee referral program, and educational assistance. Additional details can be found on our website at :

Position Title : Information System Security Engineer ISSE III

Clearance : Secret

Location : Philadelphia PA with Travel to Keyport, FL and San Diego

Job Summary :

This position will work with OneZero Solutions to support the Naval Surface Warfare Center Philadelphia Division (NSWCPD). The NSWCPD is a Department of Defense entity responsible for research and development, test and evaluation, engineering and fleet support organization for the Navy's ships, submarines, military watercraft and unmanned vehicles. This requirement is for NSWCPD Code 104, which is responsible for Information Technology Operations Division of NSWCPD's Research, Development, Test & Evaluation (RDT&E) and Business Systems cybersecurity and information assurance support.

The ISSE III plays a critical role in securing mission-critical systems for the U.S. Navy. This senior-level position involves leading cybersecurity engineering efforts across the full system lifecycle, ensuring compliance with federal cybersecurity standards, and supporting Risk Management Framework (RMF) activities.

Education and Experience

• Bachelor's Degree in computer science, information technology, communications systems management, or an equivalent technical degree from an accredited college or university.
• Seven (7) years' professional experience capturing and refining information security operational and security requirements, and ensuring those requirements are properly addressed through purposeful architecting, design, development, and configuration, and implementing security controls, configuration changes, software / hardware updates / patches, vulnerability scanning, and securing configurations.
• Minimum certification requirement : CASP+ CE, CCNP Security, CISA, CISSP (or Associate), GCED, GCIH, CCSP.

Essential Duties

Security Architecture & Engineering :

System Support & Documentation :

Collaboration & Leadership :

Knowledge, Skill and Abilities :

OneZero Solutions, LLC is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws.

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To request an accommodation, please contact us at recruiting@onezerollc.com or call (202) 987-2580.