ISSEP

Information Systems Security Engineer (ISSE) & Information Systems Security Officer (ISSO) | TS/SCI FS Poly | $220K–$260K | Annapolis Junction, MD

Job Title: Information Systems Security Engineer (ISSE) & Information Systems Security Officer (ISSO)
Location: Annapolis Junction, Maryland (100% Onsite)
Clearance Required: TS/SCI with Full Scope Polygraph (FS Poly)
Compensation: $220,000 – $260,000 base salary
Employment Type: Full-time
Relocation Assistance: Possible for ideal candidate
Benefits: Full benefits offered
Visa Candidates: Not considered

Overview:

We are hiring two experienced cybersecurity professionals for an exciting and mission-critical government program based in Annapolis Junction, MD. Both roles require active TS/SCI with Full Scope Poly (poly must be within the past 5 years and from a Maryland Intelligence Customer). While both positions are integral to the security posture of the program, each requires a different focus, background, and certification path.

1. Information Systems Security Engineer (ISSE)

Role ID: 727
Seniority Level: Mid to Senior
Clearance: TS/SCI w/ FS Poly (mandatory)
Certifications Required:

  • CISSP (Required)

  • ISSEP (Preferred or willing to obtain during crossover if CISSP has been held for 2+ years)

Key Responsibilities:

  • Develop and implement system security designs and architectures for complex, large-scale systems.

  • Lead security risk assessment and mitigation throughout the system development lifecycle.

  • Conduct system security planning, vulnerability testing, and compliance verification.

  • Analyze and implement secure communication protocols, encryption tools, and secure OS configurations.

  • Collaborate with engineers across integration, testing, and development teams to ensure compliance with classified information handling.

  • Use tools such as Nessus, NMAP, Wireshark for threat identification and remediation.

  • Support RMF, risk management activities, and IA (Information Assurance) processes.

Preferred Experience:

  • Bachelor’s or Master’s in Cybersecurity, Information Assurance, or related field.

  • Experience with Defense-in-Depth principles, secure software architecture, and penetration testing tools.

  • Proficient in scripting languages and secure configuration management.

2. Information Systems Security Officer (ISSO)

Role ID: 643
Seniority Level: Mid to Senior
Clearance: TS/SCI w/ FS Poly (mandatory)
Certifications Required:

  • IAT Level II or IAM Level II certification (Required)

    • Examples: Security+ CE, CASP+, CISSP, CISM, or similar

Key Responsibilities:

  • Act as ISSO for a large-scale software development and IT operations program.

  • Enforce security policies and maintain operational security posture of systems.

  • Manage documentation for system Certification & Accreditation (C&A) and Security Plans (SSPs).

  • Conduct vulnerability remediation, IAVA compliance, and configuration management for system security.

  • Support day-to-day information system operations, network security, and audit readiness.

  • Coordinate with ISSM and other security stakeholders to ensure secure system integration and lifecycle support.

Preferred Experience:

  • 10+ years as an ISSO in complex, standalone, or connected environments.

  • Experience maintaining SSPs, performing incident response, and managing vulnerability scans.

  • Familiarity with tools supporting IAVA management, CM, and system auditing.

  • Bachelor’s degree in a related field and 12+ years of overall security experience preferred.

Ideal Candidate Profile (Both Roles):

  • Must hold a current FS Poly with the Maryland Intelligence Customer (within the past 5 years).

  • No prior CCAs (Counterintelligence Concerns).

  • Excellent verbal/written communication skills and team collaboration.

  • Strong commitment to best practices and high-integrity security operations.

Additional Notes:

  • Both roles are 100% onsite in Annapolis Junction, MD.

  • Do not repost these positions.

  • Candidates must be U.S. Citizens with an active TS/SCI with Full Scope Polygraph.