Posted Jul 13, 2026

Information Systems Security Officer (ISSO) - Subject Matter Expert (SME)

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We are seeking a highly skilled and experienced Information Systems Security Officer (ISSO) Subject Matter Expert (SME) to join our team. In this critical role, you will be ultimately responsible for the day-to-day cyber operations of assigned systems, ensuring strict adherence to the Risk Management Framework (RMF) and industry standards. As a trusted advisor, you will collaborate closely with executive leadership—including the Authorizing Official (AO), System Owners, and the Chief Information Security Officer (CISO)—to mitigate risk and defend vital digital infrastructure.

Requirements

Education:

desired.

Experience:

engineering, or ISSO/ISSM roles.

Clearance Requirements:

Soft Skills:

technical risks into actionable business advice for executive stakeholders (AO, CISO).

Position Responsibilities

Security Program Oversight & Leadership

for assigned information systems.

appropriate operational security posture, including network/system security,

physical/environmental protection, personnel security, incident handling, and security

training/awareness.

cybersecurity operations across assigned systems.

Strategic Advisory & Risk Management

Owners, and the CISO on risks, vulnerabilities, and the overall security health of

information systems or programs.

direct support for Cybersecurity Inspections, Operations, and Orders Processing.

Technical Areas of Expertise

security controls (e.g., NIST SP 800-53).

(A&A) lifecycle.

physical security standards.

deployed in enterprise environments (e.g., ACAS, Nessus, Splunk, HBSS, or similar).

Benefits

Joining Avint is a win-win proposition! You will feel the personal touch of a small business and receive BIG business benefits, from competitive salaries, full health insurance, generous time off, and observation of federal holidays. Additionally, we encourage every Avint employee to further their professional development. To assist you in achieving your goals, we offer reimbursement for courses, exams, and tuition. Interested in a class, conference, program, or degree? will invest in YOU and your professional development! Salary Range $130,000-$150,000

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