Modern Technology Solutions, Inc. (MTSI)
Platform Security Engineer
Full details on LinkedIn
The complete job description, requirements, and application details are available on the original posting.
About Modern Technology Solutions, Inc. (MTSI)
Modern Technology Solutions, Inc. (MTSI) is an employee-owned engineering services and technology solutions company based in Alexandria, Virginia. Founded in 1993, MTSI has approximately 2,255 employees and generates around $349 million in annual revenue. The company is recognized for its positive workplace culture, earning certifications such as Great Place to Work and ranking on various best workplace lists. MTSI specializes in systems engineering services, focusing on areas such as missile defense, cybersecurity, intelligence, unmanned systems, aviation, space, and homeland security. Their capabilities include operational concepts, design engineering, performance assessments, and testing. MTSI supports various sectors, including defense, government, and commercial markets, providing solutions for critical mission areas and technically challenging problems.
Security at Modern Technology Solutions, Inc. (MTSI)
Compiled from public job postings, careers pages, and company materials. Data may not reflect current state — verify during interviews.
Security Philosophy
“MTSI's Application Security philosophy is centered on mission assurance and compliance with federal standards, specifically aligning with the six steps of the Risk Management Framework (RMF). Their approach emphasizes collaboration, tasking security professionals to partner with development and operations teams. The company prioritizes automation within CI/CD pipelines to develop and maintain secure build and testing processes. There is no public evidence explicitly defining a 'developer-first' or 'gatekeeping' stance.”
Security Team
MTSI's security leadership includes Chief Security Officer Jonathan Drapalik and Chief Information Security Officer Mark Brahler. As of March 2026, the company is actively recruiting for at least two senior roles with AppSec and DevSecOps responsibilities: a DevSecOps Engineer Senior and a Senior Cybersecurity Systems Engineer. These roles require expertise in tools like Kubernetes, Docker, GitLab, and SonarQube, as well as familiarity with RMF/NIST and DISA STIGs. Specific details regarding the internal reporting lines or the total size of the AppSec team are not publicly available.
Key Initiatives
MTSI's AppSec initiatives focus on integrating security into the SDLC through DevSecOps pipelines, utilizing static and dynamic code analysis and vulnerability scanning. Operational workflows are heavily tied to federal compliance, requiring the creation and maintenance of artifacts such as System Security Plans (SSP) and Plan of Actions & Milestones (POA&M). They also support IATT, ATC, and ATO activities. There is no public evidence of a formalized Security Champions program or specific vulnerability remediation SLAs.
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