Senior ISSO – Classified Cybersecurity Lead

Lockheed Martin Corporation; Littleton (CO); On-site; USD 118,000 - 219,000; Full time

Benefits offered by this job

Medical & Dental benefits

Vision care

Flexible work arrangements

Job summary

Lockheed Martin Corporation seeks a Cybersecurity Analyst serving as an Information Systems Security Officer (ISSO) to support the Proliferated Warfighter Space Architecture (PWSA) / SDA Tranche program. You will work across cyber disciplines and collaborate with government customers to protect classified information systems across multiple networks.

Responsibilities include RMF/ATOs, event monitoring, POA&M management, and continuous monitoring across lifecycles while ensuring regulatory

Qualifications

• Active SECRET security clearance required.
• DoD 8570/8140 IAM Level III certification required.
• Hands-on experience with industry-standard information assurance tools (vulnerability scanning, auditing, endpoint protection, SIEM, authorization package submission).
• Experience leading RMF process with government officials to obtain/maintain system approvals.
• Experience conducting risk and vulnerability assessments per government frameworks (DCSA DAAG, JSIG, ICD 503, NIST RMF).
• Strong ability to translate cybersecurity objectives into business outcomes.
• Excellent written and verbal communication with program leadership and customers.

Responsibilities

• Perform day-to-day ISSO responsibilities and provide technical cybersecurity guidance for assigned classified information systems.
• Support RMF authorization packages and ATOS.
• Monitor, analyze, document, and respond to cybersecurity events and incidents.
• Document compliance activities and manage POA&Ms.
• Ensure systems are operated, maintained, and disposed of per regulations and policies.
• Support configuration management of security-relevant components.
• Maintain lifecycle and authorization documentation.
• Evaluate proposed changes for cybersecurity impact and advise ISSM/leadership.
• Support deployment of new technologies across classification levels with compliance.
• Conduct cybersecurity education and training for users and admins.
• Participate in cybersecurity assessments, audits, and risk reviews.
• Assist investigations of incidents, vulnerabilities, and policy violations.
• Implement corrective actions for vulnerabilities and incidents.
• Enforce policies with ISSM, CPSO, engineering, and leadership.
• Support continuous monitoring, vulnerability assessments and control validation across lifecycles.
• Coordinate with government customers and authorization authorities for assessments and decisions.

Skills

Security clearance

IAM Level III

RMF process

Vulnerability assessment

SIEM

Risk analysis

Leadership

Tools

SIEM tools

Vulnerability scanners

Authorization package tools

Configuration management tools

Job description

Lockheed Martin Corporation seeks a Cybersecurity Analyst serving as an Information Systems Security Officer (ISSO) to support the Proliferated Warfighter Space Architecture (PWSA) / SDA Tranche program. You will work across cyber disciplines and collaborate with government customers to protect classified information systems across multiple networks.

Responsibilities include RMF/ATOs, event monitoring, POA&M management, and continuous monitoring across lifecycles while ensuring regulatory