CyberSecurity Engineer III

This position requires an ACTIVE DoD Top Secret clearance. Applicants who do not currently hold an active clearance will not be considered. This is a remote position, United States. At PMAT, we work on mission critical systems that directly support the warfighter, designing, building, and securing modern digital capabilities across cloud, data, and software environments. Our teams tackle complex, real-world challenges where delivery matters more than theory, and innovation is driven by curiosity, collaboration, and purpose. In this role, you’ll contribute to secure infrastructure and cybersecurity capabilities in government and defense environments, working alongside engineers and technical stakeholders to deliver resilient, forward-leaning solutions. About the role: PMAT is seeking a CyberSecurity Engineer III to support the design, deployment, security, administration, and sustainment of secure, mission-critical computing environments. In this role, you will work across on-premises infrastructure, virtualization, Linux and Windows systems, network infrastructure, automation, and compliance-driven security architectures. You will collaborate with infrastructure, cybersecurity, and engineering teams to maintain secure and reliable environments, resolve technical challenges, remediate vulnerabilities, and support systems throughout the development, authorization, and operational lifecycle. Responsibilities: Support the design and administration of secure computing infrastructu