Cybersecurity Systems Engineer

MANTECH seeks a motivated, career and customer-oriented Cybersecurity Systems Engineer to join our team.

The Cybersecurity Systems Engineer will leverage their strong technical background and knowledge to support the design, implementation, and sustainment of secure mission systems in support of Sponsor objectives. You will help ensure cybersecurity is engineered into cloud, platform, and data systems while supporting RMF/ATO processes and enabling secure delivery of operational capabilities in distributed and degraded (D-DIL) conditions.

Responsibilities include but are not limited to:

• Designing and implementing cybersecurity controls across cloud, hybrid, and mission system environments including identity, access control, and monitoring.
• Creating, updating, and maintaining required Body of Evidence (BOE) documentation, RMF/ATO artifacts, and security control documentation in alignment with ICD 503 and NIST RMF.
• Maintaining, updating, and conducting routine vulnerability scanning, log analysis, and security event reviews across all systems.
• Maintaining system baselines and configuration management items to ensure systems are hardened and compliant with required DISA STIGs.
• Integrating security into CI/CD pipelines and DevSecOps environments using automated scanning, policy enforcement, and Infrastructure as Code (IaC).
• Implementing and enforcing Zero Trust security principles, identity-centric access controls (RBAC/ABAC), and data protection aligned with the DoD Data Strategy (VAULTIS).
• Working with all stakeholders to ensure complete and functioning systems that meet security requirements while supporting rapid deployment of AI/ML workloads.

Minimum Qualifications:

• Bachelor's degree in Cybersecurity or a related field and 8+ years of progressively responsible experience in Information Systems Security (additional experience may substitute for degree).
• Significant experience navigating the Sponsor's accreditation process and ICD 503 requirements, especially as it relates to creating A&A Body of Evidence (BOE) documentation.
• Significant experience meeting security requirements, implementing controls, and performing vulnerability scanning in the Sponsor's environment or similar environments.
• Experience working across a large team to drive a security agenda and working with complex, intertwined systems, data flows, and CI/CD pipelines.
• Experience inventorying complex networks and creating documentation for security compliance, configuration management, and centralized authentication.
• Experience creating, maintaining, and communicating complex information technology documentation, particularly regarding Zero Trust principles and data system security.
• Must meet DoD 8140 (formerly 8570) baseline certification requirements, such as Security+, CySA+, or CISSP.

Preferred Qualifications:

• Certified Information Systems Security Professional (CISSP) or CCSP certification.
• Experience with the Sponsor's primary cyber risk and compliance automation tools, such as eMASS or equivalent.
• Experience supporting USSOCOM, DoD, or Intelligence Community environments including familiarity with DoD Data Strategy (VAULTIS) and cloud security (AWS/Azure).

Clearance Requirements:

• Must hold an active Secret security clearance and the ability to obtain and maintain a TS/SCI.

Physical Requirements:

• Must be able to remain in a stationary position 50%.
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Frequently communicates with co-workers, management, and customers, which may involve delivering presentations.
• Must be able to exchange accurate information in these situations.