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Leidos

Security Specialist – Mid

Leidos

. Supports the SEC ISS contract by helping maintain a secure and compliant IT infrastructure through disciplined POAM and vulnerability management .

Posted 5/16/2026full-timeRemote • 🇺🇸 United StatesMid-LevelSenior💰 $87,100 - $157,450 per yearWebsite

Tech Stack

Tools & technologies
Cyber SecurityServiceNow

About the role

Key responsibilities & impact
  • Supports the SEC ISS contract by helping maintain a secure and compliant IT infrastructure through disciplined POAM and vulnerability management
  • Identifies, tracks, and assists with remediation of security vulnerabilities across infrastructure systems
  • Supports risk management activities, including documentation, reporting, and audit remediation support required to sustain operational authorization and security posture
  • Coordinates with technical teams to plan mitigation actions, drive POAM closure, and reduce recurring security risk
  • Supports development, implementation, and management of POAMs for IT infrastructure security findings
  • Tracks POAM milestones, ownership, due dates, and dependencies; escalates risks to closure timelines
  • Validates remediation evidence and updates POAM records to reflect status and completion
  • Maintains accurate POAM reporting to support contract deliverables and SEC oversight
  • Reviews vulnerability findings and assists with severity/impact assessment and prioritization
  • Coordinates with infrastructure and operations teams to implement timely remediation actions
  • Assists in resolving vulnerabilities through patching, configuration correction, and compensating controls
  • Helps monitor open vulnerabilities and promotes proactive measures to reduce reintroduction of findings
  • Supports security risk and compliance activities for ISS-supported systems
  • Assists with security documentation aligned to SOPs, change control, and system baselines
  • Provides support for audit remediation activities, including internal reviews and external oversight audits
  • Prepares recurring status updates on vulnerability trends, POAM health, and mitigation progress
  • Records remediation actions and supporting evidence in approved workflows
  • Coordinates with cross-functional teams to resolve blockers affecting remediation timelines
  • Supports surge and incident follow-up activities only as directed by contract tasking

Requirements

What you’ll need
  • Bachelors degree in a relevant field (e.g., Information Technology, Cybersecurity, Computer Science, Engineering)
  • 4-8 years of experience identifying and resolving IT security vulnerabilities
  • Experience supporting development, implementation, and management of POAMs for IT infrastructure systems
  • Experience planning and coordinating mitigation of POAM findings in enterprise IT environments
  • IT vulnerability identification, analysis, tracking, and remediation support
  • POAM lifecycle support, milestone tracking, and closure documentation
  • Security documentation and status reporting for vulnerability and POAM remediation activities
  • Experience supporting federal civilian IT environments and contract-based service delivery (preferred)
  • Experience owning NIST RMF/FISMA security assessment or audit artifact packages (preferred)
  • Experience using ServiceNow security workflows for vulnerability and POAM tracking/reporting (preferred)
  • Strong written communication for remediation status, milestone tracking, and closure evidence (preferred)
  • Professional security certification such as Security+, CySA+, CISM, or CISSP (preferred)

Benefits

Comp & perks
  • Health and Wellness programs
  • Income Protection
  • Paid Leave
  • Retirement

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
IT security vulnerability identificationvulnerability managementPOAM developmentrisk managementsecurity documentationmilestone trackingremediation supportaudit remediationconfiguration correctionpatching
Soft Skills
written communicationcoordinationproblem-solvingorganizational skillsteam collaboration
Certifications
Security+CySA+CISMCISSP