Information System Security Officer (ISSO) at LightFeather

• Job Location Arlington, VA
• Seniority Mid-Senior Level
• Type Full-time

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Description

LightFeather is seeking a highly skilled and detail-oriented Information System Security Officer (ISSO) to join our team, providing critical security oversight and Certification & Accreditation (C&A) support for the CISA Gateway.

This role offers the opportunity to support impactful, high-visibility security initiatives within a collaborative environment.

You’ll safeguard enterprise systems, strengthen compliance posture, and contribute to an organization that values innovation, agility, and professionalism.

Location: Arlington, VA (Hybrid) Job Type: Full-time Citizenship: U.S.

Citizenship Required Clearance Requirement: Active Public Trust Security Clearance Key Responsibilities Serve as the Information System Security Officer (ISSO) for assigned enterprise systems, managing all security and compliance requirements.

Support the Certification & Accreditation (C&A) process by maintaining and updating system security documentation and artifacts.

Draft and maintain System Security Plans (SSPs), Contingency Plans (CPs), Interconnection Security Agreements (ISAs), and related security documentation.

Maintain and update security artifacts in governance, risk, and compliance (GRC) systems to ensure all materials remain current and complete for the system’s Authority to Operate (ATO).