Senior IT Systems Architect – DoD RMF & ATO (On‑Site)

Paragon Cyber Solutions LLC; Aberdeen (MD); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Health care plan

401K

Paid time off

Disability benefits

Work-life balance

Training & development

Job summary

Paragon Cyber Solutions LLC in Aberdeen Proving Ground, MD is seeking a Senior IT Systems Solutions Architect to lead cybersecurity engineering and RMF for DoD networks; this on-site role serves as contract manager.

You will guide RMF activities across ATC networks, ensure ATO, manage a small team, and coordinate with government on security controls; active Secret clearance required, Top Secret preferred.

Qualifications

• 10+ years of experience managing DoD RMF lifecycle reporting.
• 5+ years of progressive responsibility for network expansion and cloud or enclave environments.
• Experience as a Server Administrator or Network Administrator.
• Hands-on experience with DoD RMF policies and practices, security audits, risk assessments, DISA STIG compliance, NIST SP 800-53 and FISMA compliance.
• Experience managing networks across Windows, Linux, Apple in unclassified and classified environments.

Responsibilities

• Lead RMF planning, execution and maintenance to obtain and sustain ATO for the ATC LAN, Logically Isolated Network, Secure Test Environment and Test and Evaluation Network.
• Categorize systems, define boundaries, and select, implement and assess security controls under NIST SP 800-53 and DoDI 8510.01.
• Support Security Control Assessor (SCA) visits, assessments and authorization activities.
• Run continuous monitoring, POA&M maintenance and IAVM activities.
• Review proposed hardware and software baseline changes for security and interoperability impacts.
• Support configuration management and serve on technical review and control boards.
• Provide system-wide security architecture support, including emerging technologies and migration of existing capabilities.
• Support Top Secret enclave requirements under ICD 503 when directed.
• Act as Contract Manager, with full authority on day‑to‑day contract matters, available 8:00 AM to 4:30 PM, Monday through Friday.
• Oversee contract deliverables, including monthly financial and status reporting to the COR.

Skills

RMF lifecycle management

DoD RMF

CISSP certification

Multiplatform security

Contract management

Tools

DIACAP-to-RMF transition

DISA STIG compliance

NIST SP 800-53

FISMA compliance

Job description

Paragon Cyber Solutions LLC in Aberdeen Proving Ground, MD is seeking a Senior IT Systems Solutions Architect to lead cybersecurity engineering and RMF for DoD networks; this on-site role serves as contract manager.

You will guide RMF activities across ATC networks, ensure ATO, manage a small team, and coordinate with government on security controls; active Secret clearance required, Top Secret preferred.