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# SECRET Clearance Senior Cybersecurity / RMF Engineer (CISSP)

- **Company:** TMPC, Inc.
- **Location:** Aberdeen Proving Ground, MD, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Systems Engineering, Baselining, Configuration Management, CompTIA Security+, Cyber Security, Information Systems, Linux, Identity and Access Management, Information Systems Security Architecture Professional, Linux Servers, Network Planning and Design, Network Administration, Software Vulnerability Management, SC Clearance, Information Technology, Multiplatform
- **Published:** November 7, 2026
- **Apply:** https://startup.jobs/secret-clearance-senior-cybersecurity-rmf-engineer-cissp-tmpc-10682113

## About the Role

* Being a SECRET Clearance Senior Cybersecurity / RMF Engineer (CISSP) with more than twelve years of progressive DoD experience managing Risk Management Framework lifecycle activities.
 * Authority to Operate sustainment, DISA STIG compliance, and security control implementation across classified and unclassified environments.
 * Holds a current CISSP certification.
 * Strong background as a network and server administrator combined with hands-on RMF documentation, continuous monitoring, and POAM management.
 * Experienced supporting multi-platform environments (Windows, Linux, Apple) and enclave/cloud expansion requirements.

Minimum Qualifications of Education and Certifications:

 * Bachelor of Science in Computer Science or related field (or equivalent experience)

 * CISSP (Certified Information Systems Security Professional) - Current Certification
 * CompTIA Security+ (baseline)
 * DoD 8570/8140 IAT Level III / IAM Level II (or higher)
 * Clearance: ACTIVE SECRET and/OR ABOVE (favorably adjudicated Type 3 Investigation). Eligible for Top Secret as required.

Relevant Experience

 * Senior System Engineering Experience
 * Senior RMF Engineer / Cybersecurity Architect | DoD Special Operations and Test Environments
 * Led RMF categorization, control selection, implementation, assessment, and continuous monitoring for multiple DoD information systems, including preparation and maintenance of System Security Plans, Security Assessment Reports, and Plans of Action & Milestones.
 * Supported Security Control Assessor engagements and authorization activities resulting in successful ATO decisions and sustainment.
 * Managed network expansion and enclave/cloud migration requirements while maintaining RMF compliance and STIG baselines (5+ years progressive experience).
 * Performed configuration management reviews of hardware and software baseline changes; participated in technical review and control boards.
 * Conducted continuous monitoring, IAVM response, and vulnerability management across Unclassified and Secret environments.
 * Demonstrated experience with DoD RMF policies, security audits, risk assessments, DISA STIGs, NIST SP 800-53, and FISMA compliance.
 * Network / Server Administrator | DoD Contractor
 * Administered Windows and Linux server environments supporting operational networks.
 * Implemented security controls, access management, and baseline configurations consistent with DISA STIGs.
 * Including 5 years of progressive network expansion in cloud/enclave requirements.

## Description

Requirements include, but are not limited to