Information Systems Security Officer (ISSO) with Security Clearance

Westway Services Group LLC; Aurora (CO); On-site; USD 110,000 - 140,000; Full time

Benefits offered by this job

Employer-paid health premiums

Paid time off

Professional development opportunities

Collaborative, mission-driven culture

Job summary

Westway Services Group LLC is seeking an Information Systems Security Officer (ISSO) to protect classified systems in a SCIF in Aurora, Colorado. You will help maintain security compliance, support cybersecurity operations, and work independently in a highly regulated environment.

The role requires hands-on experience with NIST SP 800-53, RMF, ICD 503, and vulnerability management, with a focus on documentation and ongoing monitoring. Travel up to 20% may be required.

Qualifications

• 3+ years supporting classified systems in a SCIF context.
• Security+ or higher certification meeting applicable DoD requirements.
• Working knowledge of NIST SP 800-53, RMF, and ICD 503.
• Experience with vulnerability scanning, HBSS, and SIEM/security monitoring tools.
• Strong documentation, organizational, and problem‑solving skills.

Responsibilities

• Serve as the ISSO for classified systems within a SCIF.
• Maintain compliance with NIST SP 800-53, ICD 503, RMF, and applicable government requirements.
• Manage security controls, SSPs, and accreditation documentation.
• Conduct vulnerability scans, system audits, and continuous monitoring.
• Monitor and support investigation and reporting of security incidents.
• Maintain system configuration and security baselines.
• Support government and customer security inspections and assessments.
• Ensure users meet access, need-to-know, and security training requirements.
• Work closely with the ISSM, System Administrators, and Program Management to maintain system security and compliance.

Skills

Security+ or higher

NIST SP 800-53

RMF

ICD 503

Vulnerability scanning

HBSS

SIEM/security monitoring

Documentation

Tools

HBSS

SIEM

Job description

The Role

Westway is seeking an Information Systems Security Officer (ISSO) to support classified information systems in Aurora, Colorado. You’ll play a key role in protecting classified systems, maintaining security compliance, and supporting cybersecurity operations within a SCIF. We are looking for someone who is technically strong, detail-oriented, proactive, and comfortable working independently in a highly regulated environment.

Who We Are

At Westway, our teams support critical missions where security, accuracy, and accountability matter. We work collaboratively across technical, security, and program teams to deliver reliable solutions for our government and customer partners.

What You’ll Do

• Serve as the ISSO for classified systems within a SCIF.
• Maintain compliance with NIST SP 800-53, ICD 503, RMF, and applicable government requirements.
• Manage security controls, SSPs, and accreditation documentation.
• Conduct vulnerability scans, system audits, and continuous monitoring.
• Monitor and support investigation and reporting of security incidents.
• Maintain system configuration and security baselines.
• Support government and customer security inspections and assessments.
• Ensure users meet access, need-to-know, and security training requirements.
• Work closely with the ISSM, System Administrators, and Program Management to maintain system security and compliance.

What You’ll Bring

• 3+ years supporting classified systems in a SCIF environment.
• Security+ or higher certification meeting applicable DoD requirements.
• Working knowledge of NIST SP 800-53, RMF, and ICD 503.
• Experience with vulnerability scanning, HBSS, and SIEM/security monitoring tools.
• Strong documentation, organizational, and problem-solving skills.
• Ability to work independently and collaborate in a mission-focused environment. Preferred: CISSP, CISM, or other advanced cybersecurity certification; NRO and/or CIA experience.

Security Requirements

• Active TS/SCI clearance with current CI Polygraph required.
• U.S. Citizenship required to meet applicable government and program requirements.
• Must maintain required clearance and program access.
• Successful completion of applicable background and security checks required.

Travel

Up to 20%, as required to support customer requirements, security inspections, audits, and Virginia facilities.

Why You’ll Love Working Here

• 100% employer-paid health, dental, and vision premiums.
• Paid time off, holidays, and work-life balance built in.
• Growth and professional development opportunities.
• Collaborative team and mission-driven culture.

Westway Services Group LLC maintains a drug-free workplace and performs pre-employment reference checks, clearance checks, and post-offer background checks, where permitted by law.

This job description reflects the assignment of essential functions and is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities. Nothing in this job description restricts Westway's flexibility to reassign duties and new responsibilities to this job at any time, with or without notice.