# Corporate Security Manager (FSO/CSSO) at Sphinx Defense

- Company: Sphinx Defense
- What the company does: At Sphinx Defense, we develop high-performance software that powers secure, efficient space missions—keeping critical missions on track.
- Company website: https://www.sphinxdefense.com
- Type: Startups
- Level: Senior
- Location: Colorado Springs, CO
- Work setup: On-site
- Posted: 2026-11-04
- Apply by: 2026-12-19
- Apply: https://job-boards.greenhouse.io/sphinxdefense/jobs/5428984008?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/sphinx-defense-corporate-security-manager-fso-csso/

## About the role

Sphinx is hiring a Corporate Security Manager (FSO/CSSO) to join our team and lead security operations in support of our growing portfolio of national security and space programs. This role will be responsible for maturing and overseeing all aspects of physical and personnel security Sphinx across all levels of classification. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Have 10+ years of experience supporting security operations within the defense, intelligence, aerospace, or another highly regulated national security environment
- Have experience serving as an FSO, CSSO, Program Security Officer/Representative, Personnel Security Lead, or in a comparable security leadership role
- Are qualified or prepared to serve as a COMSEC Responsible Officer (CRO)
- Have strong knowledge of DoD and federal security requirements governing classified facilities, personnel, information, and programs
- Have hands-on experience supporting SCI environments, with demonstrated knowledge of and experience supporting Special Access Program (SAP) security requirements and operations
- Are experienced with government security and clearance systems such as NISS, JPAS, DISS, Scattered Castles, JADE and related DoD/IC and SAP security systems

Tags: Operations

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/sphinx-defense-corporate-security-manager-fso-csso/