Information Systems Security Officer (L3)

Job Summary

A leading federal contractor is seeking a qualified and motivated Cybersecurity Information System Security Officer (ISSO) Level 3 to support a mission-critical Department of Defense (DoD) program. This role offers the opportunity to join a team of professionals committed to cybersecurity excellence and national defense.

As an ISSO, you will apply and manage IT security controls to protect the confidentiality, integrity, and availability of DoD systems and data. You will ensure alignment with current hardware and software configurations and coordinate with system and network configuration managers.

This position supports the full Risk Management Framework (RMF) lifecycle—including assessment, authorization, sustainment, and system disposition. You'll collaborate with Certified Defense Contractors to uphold continuous monitoring standards and meet change management requirements. Close coordination with the Security Control Assessor (SCA) and Authorizing Official Designated Representative (AODR) is essential to obtain and maintain security approvals.

Additional duties include account management, auditing, vulnerability scanning, and advising both civilian and military personnel on cybersecurity matters. The role also supports compliance efforts and audit readiness.

This is an excellent opportunity for an experienced cybersecurity professional to contribute technical knowledge and strategic insight in a mission-focused environment.

Responsibilities / Required Skills

Active Top Secret clearance with SCI eligibility (TS / SCI)

Willing and able to submit to a Counterintelligence (CI) polygraph

10+ years of relevant DoD experience

4+ years of experience in SAP and / or SCI environments within the past 5 years

Willingness to travel as needed

Subject Matter Expert in RMF, cyber engineering, and project management

Strong communication skills, both verbal and written

Ability to convey complex technical concepts clearly and concisely

Proven ability to anticipate and mitigate potential issues

Highly organized with strong problem-solving and critical-thinking skills

Strategic mindset with the ability to support senior leadership

Education / Certifications

MA / MS / ME in Computer Science, Cybersecurity, MIS, or related field

Relevant certifications or equivalent experience may be considered in lieu of a degree

1+ year of experience implementing RMF IT security controls and policies

DoD 8140 / DoD 8570 IASAE Level II certification

Security Professional Education Development ( SPēD ) certification

Benefits

Employer-paid medical insurance

Dental and vision insurance

401(k)

Paid time off (PTO)

Tuition reimbursement

Security Clearance

Applicants must be U.S. Citizens with an active Top Secret clearance and SCI eligibility. Final hiring is contingent upon successful completion of a security investigation and the ability to meet eligibility requirements for access to classified government information.