ManTech seeks a motivated, career and customer-oriented Cyber Security Analyst to join our team in Herndon, VA.  The Cyber Security Analyst will be in support of a high priority mission at one of our National Intelligence Customers. The ideal candidate will possess experience in monitoring, analyzing, and securing federal information systems while ensuring compliance with government cybersecurity frameworks such as NIST 800-53 and RMF. This role plays a vital part in detecting threats, supporting audits, and enabling continuous monitoring efforts across complex environments.Responsibilities include but are not limited to:Monitor, investigate, and respond to cybersecurity events and alerts across enterprise systems.Conduct security assessments, vulnerability scans, and assist with remediation planning.Support compliance efforts for RMF and NIST 800-53.Prepare and maintain documentation for system security plans (SSPs), POA&Ms, and other A&A artifacts.Assist with the implementation and maintenance of security tools (SIEM, vulnerability scanners, endpoint protection).Analyze threat intelligence feeds and identify indicators of compromise (IOCs) relevant to federal systems.Participate in incident response, log analysis, and forensic investigations when required.Collaborate with system owners, ISSEs, ISSEMs, ISSOs, and engineers to ensure security controls are effectively implemented.Stay current on evolving cyber threats, federal mandates, and best practices in cybersecurity.Minimum Qualifications:Bachelor’s degree in Cybersecurity, Information Technology, or related field OR High School Diploma and additional 4+ years of experience in a related field.4+ years of experience in cybersecurity, security operations, or risk management.Familiarity with federal cybersecurity frameworks (e.g., RMF, NIST 800-53, FISMA).Cloud security experience with AWS, Azure, GCP or Oracle Cloud.Experience supporting Intelligence Community customers.Preferred Qualifications:DoD 8570-compliant certification (e.g., Security+, CYSA+, CEH, or CISSP).Experience with security tools such as Splunk, Tenable Nessus, CrowdStrike, or Wireshark.Familiarity with SCAP tools, STIGs, or automated compliance reporting.Knowledge of incident response and digital forensics processes.Clearance Requirements:Must have active TS/SCI with Full Scope PolygraphPhysical Requirements:Must be able to remain in a stationary position 50% of the time.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.