Demo

Information System Security Officer (ISSO)

D2 Consulting
Tampa, FL Full Time
POSTED ON 12/5/2025
AVAILABLE BEFORE 6/3/2026
ACTIVE TS/SCI SECURITY CLEARANCE REQUIRED

We are seeking a TS/SCI-cleared Information System Security Officer (ISSO) to join our team and help strengthen the cybersecurity posture of critical federal systems.

What You’ll Do

As an ISSO at D2, you’ll play a key role in protecting high-value government systems. You will:

Lead Security Documentation & Compliance

  • Develop and coordinate all key authorization artifacts, including System Categorization, System Security Plans, and System Risk Assessments.
  • Support control assessments, reporting, and ongoing monitoring using the CSAM (Cyber Security and Assessment Management) system.
  • Keep components aligned with Core Controls and A-123 assessment timelines.
  • Ensure all Risk-Based Decisions have current waivers and proper documentation.

Strengthen System Security Posture

  • Support security control testing, document results, assist in remediation, and ensure effective POA&M management.
  • Develop or update Business Continuity Plans and Contingency Plans.
  • Guide components on decisions affecting the security of their systems and networks.
  • Prepare teams for tri-annual Security Assessment and Authorization (SA&A) activities.

Perform Assessments & Provide Expert Analysis

  • Conduct assessments of information system security requirements and recommend remediation priorities.
  • Review system architecture, infrastructure, and SA&A documentation.
  • Assess NIST 800-53 Rev. 4 controls and document outcomes.
  • Evaluate and enhance standard SA&A documentation processes.

Drive Risk Management & Continuous Improvement

  • Perform and document risk assessments, evaluate vulnerabilities, and recommend risk-based mitigations.
  • Develop and manage POA&Ms aligned with federal standards and industry best practices.
  • Create System Security Plans, User Guides, and ST&E review documentation for new and legacy systems.
  • Conduct NIST-based self-assessments and develop improvement plans.
  • Develop Initial Privacy Assessments (IPA) and Privacy Impact Assessments (PIA).
  • Conduct ST&Es and Independent Verification & Validation (IV&V) for federal IT systems.
  • Conduct OMB A-123 security assessments for federal systems.

What You Bring

  • Bachelor’s degree in Computer Science or a related technical field – or equivalent combination of education, certifications, and experience
  • 8 years of experience performing system security assessments, producing security documentation, or executing security upgrades across networks, servers, desktops, and databases
  • 8 years of experience developing and enhancing IT security policies aligned to federal and international standards
  • 8 years of IT security expertise, including experience developing C&A/SA&A packages and achieving ATO for classified systems
  • Strong working knowledge of NIST SP standards, including NIST SP 800-37, and experience using CSAM
  • TS/SCI clearance required, with eligibility for CI Poly
  • At least one of the following certifications:
    • CISA
    • CRISC
    • CISM
    • CGEIT
    • CISSP
    • CAP
Location

Onsite at Customer Location

U.S. Citizenship Required

Additional Information

  • All your information will be kept confidential according to appropriate guidelines.
  • Compensation is unique to each candidate and relative to the skills and experience they bring to the position. The salary range for this position is typically $145k-159k. This does not guarantee a specific salary as compensation is based upon multiple factors such as education, experience, certifications, and other requirements, and may fall outside of the above-stated range.
  • Highlights of our benefits include Health/Dental/Vision, 401(k) match, Accrued PTO, STD/LTD/Life Insurance, Referral Bonuses, professional development reimbursement, and more!

D2 Consulting is committed to a merit-based recruitment process and encourages applications from all qualified individuals. As a Veteran-Owned Small Business, we particularly welcome applications from veterans who have the requisite skills and experience. Job applicants that are interested in one of our openings and may require a reasonable accommodation to participate in the job application or interview process, should contact us to request an accommodation.

Salary : $145,000 - $159,000

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