Information System Security Engineer (ISSE) III at Diligent Consulting Inc

Philadelphia, Pennsylvania, United States -

Full Time

Start Date

Immediate

Expiry Date

17 Apr, 26

Salary

0.0

Posted On

17 Jan, 26

Experience

10 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Cybersecurity, Risk Management Framework, NIST Controls, Vulnerability Assessments, Technical Writing, Cybersecurity Strategy, System Security Plans, Security Assessment Reports, Continuous Monitoring, DoD Tools, Security Architectures, Mission-Critical Deployments, Risk Assessments, Control Tailoring, Collaboration, Cybersecurity SME

Industry

Software Development

Description

Job Title: Information System Security Engineer (Contingent Upon Award) Hiring Company: Diligent Consulting Inc. Client: Naval Surface Warfare Center, Philadelphia Division (NSWCPD) Location: Philadelphia, PA Clearance: Secret Estimated Period of Performance: May 2026 - May 2031 This position is contingent upon contract award. Engineer the Cybersecurity Backbone of the Navy's Next-Generation Systems. Diligent Consulting is seeking Information Systems Security Engineers (ISSE III) to provide advanced cybersecurity and Risk Management Framework (RMF) engineering services to the Naval Surface Warfare Center, Philadelphia Division (NSWCPD). This isn’t a checkbox compliance role—we need engineers who architect secure solutions, shape cyber strategy, and turn NIST controls into operational strength. If you thrive at the intersection of mission and security architecture, this role is built for you. Key Responsibilities: Lead complex security engineering tasks throughout the system lifecycle: design, development, integration, and sustainment. Execute full-spectrum RMF activities (Steps 0–6), including control tailoring, POA&M management, and continuous monitoring. Author and maintain RMF documentation: System Security Plans (SSP), Security Assessment Reports (SAR), ISCM strategies, CAPs, and risk assessments. Apply guidance from NIST SP 800-53 Rev 5, DoDI 8510.01, and NAVSEA/Navy cybersecurity policies. Conduct vulnerability assessments and remediation planning using ACAS, HBSS, VRAM, SCC, and related DoD tools. Collaborate with ISSMs, AOs, developers, and system owners to define system boundaries, safeguards, and security architectures. Serve as cybersecurity SME during design reviews, connection requests, and mission-critical deployments. Analyze risk posture and support risk acceptance decisions with security-first, mission-aware insight. Minimum Qualifications: Bachelor’s degree in Cybersecurity, Computer Science, Systems Engineering, or related field 8+ years of experience in information assurance, cybersecurity engineering, or RMF package development IAT Level III Certification required (CISSP, CASP+, or equivalent per DoD 8140.03M) Deep experience with: DoD RMF lifecycle (Steps 0–6) NIST SP 800-53 Rev 5, STIGs, and POA&M management Navy eMASS, VRAM, SCC, and cybersecurity reporting workflows Preferred Qualifications: Master’s degree in Cybersecurity or Engineering Prior experience supporting Navy or NAVSEA cybersecurity programs Strong technical writing skills and experience briefing senior leadership Familiarity with DevSecOps and Zero Trust principles Clearance: Active Secret Clearance required Top Secret Clearance preferred Why Join Diligent Consulting: Direct impact on national defense and naval readiness Cutting-edge cyber engineering work at the system level Competitive salary and comprehensive benefits package Professional growth in a mission-driven, collaborative environment

Responsibilities

Lead complex security engineering tasks throughout the system lifecycle, including design, development, integration, and sustainment. Execute full-spectrum RMF activities and author necessary documentation to ensure cybersecurity compliance.