ISSE; Hybrid

Location: Columbia, Maryland
Work Arrangement: Hybrid (Approximately 1–2 Days Onsite Per Week)
Required Clearance: Active TS/SCI with Full Scope Polygraph

Wyetech is seeking an experienced Information Systems Security Engineer (ISSE) to support the design, development, implementation, assessment, and authorization of secure information systems and network architectures within mission-critical Department of Defense (DoD) environments.

The ISSE will provide cybersecurity engineering expertise across complex, multi-tiered systems and multiple security enclaves, including environments with differing classification levels and data protection requirements. This position requires a strong understanding of distributed architectures, cloud-based systems, Big Data applications, and federal cybersecurity compliance requirements.

The successful candidate will collaborate with government stakeholders, cybersecurity professionals, system engineers, and software development teams to implement security controls, assess operational risks, manage Risk Management Framework (RMF) documentation, and maintain system authorization packages.

This position offers a hybrid work arrangement requiring approximately one to two days per week onsite in Columbia, Maryland. Candidates must be flexible to accommodate changes to onsite schedules based on mission and operational requirements.

Required Skills/

Experience:

• Active TS/SCI clearance with Full Scope Polygraph.

• Demonstrated Information Systems Security Engineering experience supporting large, complex, multi-tiered programs and enterprise environments.

• Experience designing, implementing, and evaluating secure system and network architectures spanning multiple enclaves with differing classification and data protection requirements.

• Experience implementing DoD system accreditation and authorization processes, including DIACAP or RMF, with RMF experience preferred.

• Strong understanding of the National Institute of Standards and Technology (NIST) SP 800-53 security control framework, including control inheritance, security control implementation, assessment, and authorization artifact generation.

• Experience creating, reviewing, editing, and maintaining system authorization documentation in accordance with federal and DoD cybersecurity policies.

• Hands‑on experience navigating RMF workflows, uploading security authorization artifacts, and managing Plans of Action and Milestones (POA&Ms) within eMASS, Xacta, or equivalent RMF systems of record.

• Experience interpreting, applying, and validating Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs) and Security Requirements Guides (SRGs).

• Experience using vulnerability management systems, automated security scanning tools, and security compliance platforms.

• Experience reviewing vulnerability scan results, identifying security deficiencies, documenting findings, implementing mitigation strategies, and tracking remediation activities.

• Experience evaluating cybersecurity and operational risks associated with integrated open-source, Commercial Off-the-Shelf (COTS), and Government Off-the-Shelf (GOTS) software components.

• Working knowledge of TCP/IP protocols and services, computer architectures, network topologies, and secure networking principles.

• Understanding of distributed computing architectures, cloud-based systems, and security considerations associated with Big Data applications.

• Experience performing security planning, risk assessments, security control evaluations, risk analysis, and risk management activities.

• Ability to recommend system-level security solutions and collaborate with engineering and development teams to achieve required…