New

Information Systems Security Engineer (ISSE)

Quadrant, Inc.
United States, Maryland, Columbia
Jan 07, 2026
Information Security System Engineer (ISSE) Columbia, MD (hybrid) Pay From: $150,000 per year MUST: Experienced ISSE Current TS/SCI 9+ years of experience as an ISSE with large multi-tiered programs Experience implementing DoD system accreditation processes (DIACAP acceptable and RMF preferred). A working knowledge of TCP/IP suite of protocols and services, computer architectures, and network topologies is required. DoD 8570 compliance with IAT Level II (SSCP, Security+, CCNA-Security, or GSEC certification) Experience with DISA STIGs and SRGs, vulnerability management systems, mitigation and compliance processes, and reviewing results from automated security scanning tools. The ability to work independently and as part of a team is needed. Must be able to work in a hybrid environment, spending an average of 3 days per week at the Ft. Meade or Columbia, MD offices. Flexibility is essential to adapt to schedule changes as needed. CISSP-ISSEP is highly desired. Bachelors in related field; OR 7 years relevant experience with Masters in related field; OR High School Diploma or equivalent and 13 years relevant experience. DUTIES: ISSE will perform system or network designs that encompass multiple enclaves, to include those with differing data protection/classification requirements. The candidate should understand distributed architectures and cloud-based systems for big data applications. Must be willing to work a hybrid schedule and be flexible to accommodate any schedule changes as needed. Will create, review and edit authorization documentation for completeness and accuracy in accordance with federal and DoD policy. Thoroughly understand and be able to implement DoD RMF system accreditation processes. Assess use case and operational risk of integrated open source, and GOTS/COTS software components. Will use vulnerability management systems, automated security scanning tools, and system accreditation record systems. Must be able to grasp new concepts, facilitate information exchanges for data gathering, and collaborate with diverse audiences. Will follow established processes where applicable and establish and execute defensible processes where none are prescribed. Provide security planning, assessment, risk analysis, and risk management support. Recommend system-level solutions to resolve security requirements and guide the development team in meeting the security posture requirements. Support the Government in the enforcement of the design and implementation of trusted relationships among external systems and architectures. Must apply existing knowledge of IA policy, procedures, and workforce structure to design, develop, and implement secure networking, computing, and enclave environments. Must be able to interact well with others to complete work. Other duties as assigned.