Security Analyst

Join our team at Core One! Our mission is to be at the forefront of devising analytical, operational and technical solutions to our Nation's most complex national security challenges. In order to achieve our mission, Core One values people first! We are committed to recruiting, nurturing, and retaining top talent! We offer a competitive total compensation package that sets us apart from our competition. Core One is a team-oriented, dynamic, and growing company that values exceptional performance!

Clearance Required: Active TS/SCI with Polygraph

Summary

We are seeking a Security Analyst to support cybersecurity operations, compliance, and risk management for FedRAMP-authorized and Intelligence Community (IC) systems. This role is responsible for ensuring systems meet stringent federal security requirements while enabling secure, scalable, and compliant cloud and on-premises solutions.

The ideal candidate brings deep expertise in NIST frameworks, FedRAMP authorization processes, continuous monitoring (ConMon), and ATO lifecycle management, along with the ability to operate in classified or high-security environments.

Key Responsibilities

• Lead and support FedRAMP Moderate/High and IC ATO authorization processes
• Develop, review, and maintain security documentation: System Security Plans (SSP), Security Assessment Reports (SAR), Plan of Action & Milestones (POA&M)
• Ensure compliance with NIST SP 800-53 / 800-37 RMF, FedRAMP baselines, ICD 503
• Perform risk assessments, control assessments, and gap analyses
• Implement and manage RMF lifecycle activities (Categorize → Monitor)
• Track and manage POA&M remediation activities
• Facilitate security control inheritance and shared responsibility models
• Execute continuous monitoring strategies and reporting
• Analyze security posture using Vulnerability scans and Configuration compliance
• Produce monthly/quarterly ConMon deliverables
• Monitor and analyze security events and alerts
• Support incident response and forensic analysis
• Coordinate with SOC teams and stakeholders for threat mitigation
• Conduct root cause analysis and lessons learned
• Secure cloud environments aligned with FedRAMP controls
• Implement identity and access controls
• Support 3PAO assessments and audits
• Prepare evidence artifacts for FedRAMP JAB/Agency ATO reviews and Inspector General (IG) audits
• Coordinate with internal/external auditors