Information Systems Security Engineer (ISSE) (TS/SCI Clearance with Full Scope Polygraph Required)

J&T Business Consulting; Annapolis (MD); Presencial; USD 80.000 - 150.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health, Dental, Vision Insurance

Life and Disability Insurance

PTO and Holidays

401(k) with Company Match

Tuition Reimbursement

Descripción de la vacante

J&T Business Consulting in Annapolis Junction, MD seeks an experienced ISSE (TS/SCI with Polygraph) to secure large-scale systems. You will validate security designs, apply RMF, conduct vulnerability assessments, and collaborate with agile teams to ensure compliant, resilient operations.

Required: 12+ years as ISSE, IASAE Level 2/3, and active TS/SCI with Polygraph. Desired: CISSP/CISSP-ISSEP and 5+ years Defense-in-Depth experience. Competitive benefits provided.

Formación

• Experience applying RMF and IT security policies.
• Hands-on vulnerability testing and network analysis.
• Security architecture design and risk trade-offs.
• Experience with Type 1 cryptographic devices is a plus.
• Strong collaboration with engineering and test teams.
• DoD 8570/8140 IASAE Level 2/3 certifications preferred.

Responsabilidades

• Validate system security designs, architectures and requirements.
• Lead RMF-based security planning, risk assessments and approvals.
• Perform vulnerability testing and configuration auditing with Nessus/NMAP/Wireshark.
• Collaborate with cross-functional teams during PI planning for security needs.
• Plan and conduct security verification testing for cryptographic devices.
• Enforce information security policies and baselines.
• Evaluate security impact of new software deployments and drive remediation.
• Advise Program Managers and stakeholders on security trade-offs.

Conocimientos

RMF

Vulnerability testing

Security architecture

Program planning

Threat modeling

Network analysis

Educación

Bachelor's degree (CS/IA/ISSE)

CISSP or CISSP-ISSEP

DoD 8570/8140 IASAE Level 2/3

Herramientas

Nessus

NMAP

Wireshark

Descripción del empleo

Information Systems Security Engineer (ISSE) (TS/SCI Clearance with Full Scope Polygraph Required)

Annapolis, United States | Posted on 11/02/2026

Position: Information Systems Security Engineer (ISSE)

Location: Annapolis Junction, MD

Employment Type: Full-Time

Clearance Requirement: Active TS/SCI with Polygraph

Salary Range: $80,000 – $150,000 / year (dependent on experience, education, and skill set)

About the Role

Seeking a Senior Information Systems Security Engineer (ISSE) to support large-scale, mission-critical systems across a complex, geographically distributed network environment in Annapolis Junction, MD.

In this role, you will serve as a security subject matter expert, validating system security requirements, designing robust security architectures, and executing hands‑on vulnerability assessments. You will collaborate closely with Systems Engineering, Test, and Integration teams in an Agile environment to ensure hardware and software implementations meet stringent compliance standards and maintain a resilient operational security posture.

Key Responsibilities

Validate and establish system security designs, architectures, and requirements for major system components and distributed network interfaces.

Apply the Risk Management Framework (RMF) to lead security planning, risk assessments, control evaluations, continuous monitoring, and system authorization activities.

Perform vulnerability testing, scanning, auditing, and assessment of system configurations using standard security tools (e.g., Nessus, NMAP, Wireshark).

Collaborate with engineering, test, and agile development teams during Program Increment (PI) planning to formulate security compliance requirements for new capabilities.

Plan and conduct security verification testing for Type 1 cryptographic and security-relevant devices.

Formulate, coordinate, implement, and enforce information systems security policies, technical standards, and configuration baselines.

Evaluate the operational security impact of new software deployments, identify vulnerabilities and attack vectors, and drive end-to-end remediation.

Act as a primary technical advisor on security architecture and risk trade-offs for Program Managers, internal engineering teams, and customer stakeholders.

Required Qualifications & Experience

Security Clearance: Active TS/SCI with Polygraph.

Experience: Minimum of 12 years of experience as an ISSE on large technical programs.

Certifications: DoD 8570/8140 IASAE Level 2 or Level 3 certification.

Risk & Policy Frameworks: Proven experience applying the Risk Management Framework (RMF) and formulating/assessing IT security policies and compliance standards.

Technical & Tool Expertise: Hands‑on experience with vulnerability scanning and network analysis tools (e.g., Nessus, NMAP, Wireshark), communication protocols, encryption techniques/tools, and web services.

System Administration: In-depth experience with the secure configuration and hardening of standard enterprise desktop and server operating systems.

Desired Qualifications

Bachelor’s degree in Computer Science, Information Assurance, Information Systems Security Engineering, or a related field.

Professional certifications: CISSP or CISSP-ISSEP.

5+ years of experience with Defense-in-Depth principles (access control, PKI, IAM, network and enterprise security architectures).

Experience with scripting languages and automated testing workflows.

Experience with advanced penetration testing tools, incident response, and application security evaluations for firewall designs and network boundaries.

Benefits & Compensation

This position offers a comprehensive benefits package designed to support employees both personally and professionally:

Comprehensive Health, Dental, and Vision Insurance

Basic Life and Disability Insurance

Paid Time Off (PTO) and Paid Holidays

401(k) Retirement Plan with Company Match

Tuition Reimbursement for continued professional education

An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected under federal, state, or local law.