Senior Cybersecurity Systems Engineer Job at Modern Technology Solutions, Inc. (

Join to apply for the Senior Cybersecurity Systems Engineer role at Modern Technology Solutions, Inc. (MTSI) MTSI is seeking a senior cybersecurity systems engineer whose primary function will be to work with Special Access Programs (SAPs) supporting Department of Defense (DOD), Headquarters United States Air Force, and MTSI Operations. The position will provide direct security engineering support to the Air Force acquisition community throughout the system development lifecycle (SDLC) and will be based at Joint Base Anacostia‑Bolling (JBAB). Responsibilities Understanding operational needs of systems at varied stages of the SDLC through participation in acquisition meetings (PMR, PDR, CDR, etc.) and concept of operation (CONOP) working groups. Designing and developing security requirements that drive down risk while maintaining operational capability. Working between architecture‑level and implementation‑level engineering meetings to maintain a system‑wide view of security functions and apply risk mitigation strategies at the appropriate level. Guiding and verifying defense contractors’ work against program requirements and goals, including participation in technical discussions, trade studies, and working groups, and conducting research on industry best practices for potential implementation. Interfacing with program managers to explain security goals and mitigations relative to their priorities of cost and schedule. Performing Security Control Assessor duties on behalf of the Authorizing Official (AO): Selecting and tailoring controls from the NIST SP 800‑53 control catalog in view of system needs and constraints. Reviewing system and network artifacts and conducting assessments against selected control baselines, assessing residual risk and providing recommendations to the Authorizing Official. Evaluating software and hardware prior to entry to networks. Required 10+ years of related technical experience. Firm understanding of the DoD 8500.1‑M, Joint SAP Implementation Guide (JSIG), and NIST SP 800‑53. Demonstrated ability to assess and articulate risk, including to non‑technical audiences. Demonstrated history of finding unique mitigations to varied systems’ security challenges. Demonstrated technical proficiency in at least one area of security (e.g., communications, networks, embedded systems, software, system testing or assessment). Strong research skills and a desire to learn new (emerging or unfamiliar) technologies. Strong communication skills, written and oral. Able to travel ~30% of time for program meetings. Desired Experience with Special Access Programs, acquisition programs, software engineering, or code review. Certifications IAM II (e.g., CISSP, CISM); sub‑field specific certifications such as CCSP, AWS Solutions Architect, OSCP, GPEN, or operating systems administration are desired. Education Requirements Master’s degree in Computer Science, Computer Engineering, Software Engineering, Electrical Engineering, or related engineering discipline. Clearance Requirements: An active TS/SCI clearance is desired. #J-18808-Ljbffr