Information System Security Officer (ISSO) – Top Secret Clearance | Philadelphia, PA

Information System Security Officer – Top Secret Clearance | Philadelphia, PA 

Cambridge International Systems, Inc. 

Join a dynamic global team united by shared values: commitment, integrity, and perseverance. At Cambridge, you’ll work alongside top talent worldwide, tackling some of today’s most complex and critical challenges in defense and security. 

We are currently seeking an Information System Security Officer to support operations in Philadelphia, PA. This is a full-time, CONUS position requiring an active DoD Top Secret clearance.  

This position is contingent upon contract award. The expected award date is May 2026. 
 

What You’ll Do 
+ Serve as an ISSO supporting RMF compliance and cybersecurity for DoD systems. 
+ Implement and monitor security controls, ensuring adherence to NIST 800-53 and DoD policies. 
+ Conduct vulnerability assessments, threat analyses, and continuous monitoring using tools like ACAS, STIG Viewe...