Demo

Sr ISSO

Open Systems Technologies Corporation
Huntsville, AL Full Time
POSTED ON 10/21/2026
AVAILABLE BEFORE 11/19/2026
Open Systems Technologies Corporation is looking for a seasoned ISSO professional to join our high performing cyber team in support of a large SOC enterprise environment.

Responsibilities

Serves as the principal advisor to the Information System Owner (SO), Business Process Owner, and the Chief Information Security Officer (CISO) / Information System Security Manager (ISSM) on all matters, technical and otherwise, involving the security of an information system. ISSOs are responsible for ensuring the implementation and maintenance of security controls. Directs and implements the necessary controls and procedures to cost-effectively protect information systems assets from intentional or inadvertent modification, disclosure, or destruction. Provides guidance and direction for the physical protection of information systems assets to other functional units. Provides reports to superiors regarding effectiveness of data security and makes recommendations for the adoption of new procedures. Assist with reviewing, developing, and navigating the system, team, and customer through the Authority to Operate (ATO) accreditation/certification documentation process. Perform network self-inspections. Create new and edit existing documentation that forms the Authority to Operate (ATO) package to include the System Security Plan and IS contingency plan. Develop Plan of Action and Milestone (POAMS) from vulnerability data and enter into the system of record.

Required Skills:

Experience with the implementation, oversight, and maintenance of the security configuration, practices, and procedures for systems

10 years of experience as an ISSO

4 year Degree

Top Secret clearance with the ability to sit for a CI Poly

Preferred Skills:

  • Experience with Xacta o Possession of excellent verbal and written communication skills o Possession of excellent interpersonal skills o CISSP or CompTIA Certification (any level)

Benefits

Our company OST has been operating since 1996 and have various contracts with Government agencies. We offer a comprehensive benefit package that includes 3 weeks paid time off, 2 weeks Holiday pay, medical/dental/vision coverage, STD, LTD, Life Insurance, AD&D, and 401k with up to 4% match.

Salary.com Estimation for Sr ISSO in Huntsville, AL
$130,010 to $164,529
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