Information System Security Officer (ISSO) with Security Clearance

About the role

Mantis Security is seeking an experienced Information Systems Security Officer (ISSO) to lead the Assessment and Authorization (A&A) for multiple analytic mission systems. The ISSO must be proficient in standard A&A activities and generate and maintain the complete security body of evidence (BoE) while ensuring compliance with the Risk Management Framework (RMF).

Responsibilities

• Support to the Assessment and Authorization (A&A) and all Risk Management Framework (RMF) processes (ICD 503, CNSSI-1253, NIST 800-37, NIST 800-53, etc.) for all multiple information systems.
• Work with software engineers, DevOps engineers, release managers, and project management to follow A&A and ATO processes, and ensure Minimum Viable Product (MVP) and full releases are compliant and meet security requirements for continuous delivery to an AWS production environment.
• Create and maintain System Security Plan (SSP), Security CONOPS, Security Test Plan (STP) and Security Test Procedures, document and maintain implementation details of NIST 800-53 security controls.
• Plans and performs security functional testing, creates and maintains STPs, supports security assessments.
• Utilize Xacta to maintain Security Body of Evidence (BoE) files and to work through the A&A process for each system release cycle.
• Provide guidance on the application of security policy, identifying security requirements, providing technical guidance for the satisfaction of requirements, reviewing and determining the adequacy of required documentation.
• Manage the plan of action and milestones (POA&Ms) by working with project managers and engineers to develop schedules and engineering actions that mitigate open findings.
• Monitor and audit operational systems for proper use.

Requirements

• Bachelor’s degree with 9 years of experience, or Master’s degree with 7 years of experience, or no degree with 13 years of experience.
• DoD 8570 IAT Level II certification requirements (one of CCNA Security, CySA+, GICSP, GSEC, Security+ CE, or SSCP).
• Current TS/SCI eligibility or Active TS/SCI.
• Able to obtain a CI polygraph.

Qualifications

• Proficiency with Xacta IA Manager (or Xacta 360).

Skills

• Strong understanding of cybersecurity principles and practices.
• Experience with A&A processes and RMF.
• Knowledge of NIST 800-53 and related standards.
• Excellent communication and interpersonal skills.
• Ability to work independently and as part of a team.

Benefits

We offer a comprehensive benefits package designed to support our employees' well-being and career growth. This includes:

• Competitive compensation and benefits package.
• Flexible work arrangements.
• Professional development opportunities.
• Health, dental, and vision insurance.
• Retirement savings plans.
• Employee assistance programs.
• And much more!

Pay

Compensation is commensurate with experience and qualifications.

Schedule

Full-time position.

Contact

To apply, please visit our website at www.mantissecurity.com.