About the role
L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.
L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.
Job Description
L3Harris is seeking a highly skilled, experienced, and security-conscious ISSO to join our team in Wilmington, MA. The ideal candidate will have a strong background in Linux and Windows environments, with an emphasis on adhering to the Risk Management Framework (RMF). This role requires an active Top Secret clearance with SCI eligibility, and involves maintaining the integrity, confidentiality, and availability of classified information systems.
Essential Functions
Serve as a technical lead for classified system security architecture, ensuring compliance with DCSA DAAG (formerly DAAPM), JSIG, and NIST RMF standards across multiple programs.
Oversee end-to-end system authorization processes—including security categorization, control implementation, validation, and continuous monitoring—to maintain active ATOs and alignment with enterprise cyber governance.
Develop and author advanced RMF documentation packages (SSP, SCTM, POA&M, RAR, etc.) and provide mentorship to ISSOs and System Administrators on control inheritance, risk acceptance, and test methodologies.
Lead vulnerability and compliance assessments leveraging Nessus, STIGViewer, SCAP, and coordinate with Engineering and Program Management to remediate findings and reduce enterprise risk.
Direct audit readiness and inspection efforts for DCSA and ensure all security evidence and technical artifacts meet DAAG (formerly DAAPM) and program standards.
Provide strategic…
