Information System Security Engineer

Job Title: Information Systems Security Engineer (ISSE)
Location: Ft. Belvoir, VA - 60% onsite
Clearance: Active TS/SCI CI Poly
Employment Type: Full-Time
Education: Bachelor's degree in a related field with 9+ years of ISSE experience; OR Master's degree with 7+ years of relevant experience; OR High School Diploma (or equivalent) with 13+ years of relevant experience
Salary: 150k to 175k
Benefits: Health, dental, vision, 401(k), PTO, and more
Application: Apply directly or submit your resume through Enlighten's careers portal

Overview
Enlighten is seeking a mid-to-senior level Information Systems Security Engineer (ISSE) to support system and network designs spanning multiple enclaves, including environments with varying data protection and classification requirements. This role requires strong experience with DoD RMF, distributed architectures, and cloud-based systems supporting big data applications. The ideal candidate is adaptable, collaborative, and comfortable working in a hybrid environment with evolving mission needs.

Key Responsibilities
Create, review, and edit system authorization documentation for completeness and accuracy in accordance with federal and DoD policies

Implement and support DoD Risk Management Framework (RMF) system accreditation processes

Assess operational and use-case risks for integrated Open Source, GOTS, and COTS software components

Utilize vulnerability management systems, automated security scanning tools, and system accreditation record systems

Provide security planning, assessment, risk analysis, and risk management support

Recommend system-level solutions to meet security requirements and guide development teams in achieving required security posture

Support the Government in enforcing trusted relationships among external systems and architectures

Apply IA policies, procedures, and workforce frameworks to design, develop, and implement secure networking, computing, and enclave environments

Facilitate information exchanges, gather technical data, and collaborate with diverse technical and non-technical stakeholders

9+ years of experience as an ISSE supporting large, multi-tiered DoD or Government programs (experience requirements may vary by education level)

Hands-on experience implementing DoD system accreditation processes (DIACAP acceptable; RMF preferred)

Working knowledge of TCP/IP protocols, computer architectures, and network topologies

Experience with DISA STIGs and SRGs, vulnerability management systems, mitigation, and compliance processes

Experience reviewing and analyzing results from automated security scanning tools

Strong ability to work independently and as part of a team

Ability to operate effectively in a hybrid work environment with schedule flexibility

DoD 8570 IAT Level II certification (Security+, SSCP, CCNA-Security, or GSEC required)

CISSP-ISSEP certification