Information Systems Security Engineer (Hybrid) - Network/Cloud

Company: Captivation Software
Location: Fort Belvoir
Posted on: February 19, 2026

Job Description:

Job Description Job Description Build to something to be proud of. Captivation has built a reputation on providing customers exactly what is needed in a timely manner. Our team of engineers take pride in what they develop and constantly innovate to provide the best solution. Captivation is looking for software developers who can get stuff done while making a difference in support of the mission to protect our country. Description Captivation Software is looking for a Security Engineer/Architect. Candidate will be required to understand and document a systems design and implementation 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. Role is hybrid work on our customer site in Ft. Belvoir, VA. Responsibilities 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. Requirements Security Clearance: A current TS/SCI level U.S. Government clearance with CI Poly is required; U.S. Citizenship required. Minimum Qualifications: 9 years of experience as an ISSE with large multi-tiered programs and 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. 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) is required. 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. Work is hybrid role out of our customer site in Ft. Belvoir, VA. Must be willing to work on-site 2-3 days/week. Flexibility is essential to adapt to schedule changes as needed. Preferred Qualifications: CISSP-ISSEP is highly desired. This position is open for direct hires only. We will not consider candidates from third party staffing/recruiting firms. Benefits Annual Salary: $130,000 - $270,000 (Depends on the Years of Experience) Up to 20% 401k contribution (No Matching Required and Vested from Day 1) Above Market Hourly Rates $3,600 HSA Contribution 6 Weeks Paid Time Off Company Paid Employee Medical/Dental/Vision Insurance/Life Insurance/Short-Term & Long-Term Disability/AD&D

Keywords: Captivation Software, Towson , Information Systems Security Engineer (Hybrid) - Network/Cloud, IT / Software / Systems , Fort Belvoir, Maryland