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Information System Security Manager (ISSM)

Invariant Corporation
Huntsville, AL Full Time
POSTED ON 5/11/2026
AVAILABLE BEFORE 6/7/2026

Information System Security Manager (ISSM)

26-035


Invariant Corporation is seeking a talented and motivated Information System Security Manager (ISSM) with at least 3 years of experience to work as a ISSM for a classified on-site environment in addition to supporting accreditation packages for deployed systems.


Duties Include:

  • Create eMASS authorization packages
  • Create, update, and follow policies and procedures for information security
  • Perform auditing and continuous monitoring activities in a classified environment
  • Prepare accreditation packages including hardware/software baseline, system boundary diagrams, and continuous monitoring plans for deployed systems.
  • Perform other duties as assigned or required


Requirements:

Candidate must have a minimum of a Bachelor’s degree in STEM degree with a minimum of 3 years’ experience in cyber security. Candidate must have demonstrated experience in the following

  • Information System Security Officer (ISSO) or Information System Security Manager (ISSM) in a classified NIST 800-53 Risk Management Framework (RMF) environment
  • Experience creating and updating eMASS authorization packages and continuous monitoring results
  • Performing auditing and continuous monitoring functions
  • Collecting artifacts for security authorizations and reviews


Preferred qualifications include familiarity with some or all of the following:


  • Additional years of experience is a plus
  • NIST 800-171/ Cybersecurity Maturity Model Certification (CMMC) compliance
  • NIST 800-53 RMF experience in deployed program environment



Requires ability to:


  • Current Secret Clearance
  • Excellent record keeping and organizational skills
  • Work well in a small, mission-driven environment with co-workers and management
  • Exceptional oral and written communication skills


Work Environment


Office and lab environment.




This position is expected to be performed only in the state of Alabama.

Subject to the provisions of Code of Alabama§ 40-18-370, the Company shall give good faith consideration to Alabama residents for employment at the Project.


Invariant Corporation is an Equal Opportunity Employer. All qualified applicants will be considered without regard to race, color, religion, sex, national origin, disability, or veteran status.

Invariant is a drug-free workplace.

Salary.com Estimation for Information System Security Manager (ISSM) in Huntsville, AL
$134,489 to $164,924
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