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Open nowPosted 30 days ago

Lead Information System Security Officer (ISSO)

C3EL50 open roles

Where
Washington, D.C.
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Your applicationOpen nowLead Information System Security Officer (ISSO)C3EL · Washington, D.C.

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The clock on this job

Early applications get read.

7.8% of postings close within 7 days. Measured by our own scanner across the market. C3EL postings stay open a median of 8 days.

Share of postings closed within
  1. 1.7%1 day
  2. 3.5%3 days
  3. 7.8%7 days
  4. 14.6%14 days
  5. 34.1%30 days
This job: posted 30 days ago

C3EL median: 8 days open

The posting

**CONTINGENT UPON CONTRACT AWARD**

Overview:

Job Title: Lead Information System Security Officer (ISSO)

Security Clearance: Ability to Obtain Tier 4 High-Risk Public Trust

Location: Washington, D.C.

(Due to the nature of the work and contract requirements, U.S. Citizenship is required.)

Description:

C3EL is seeking a Lead Information System Security Officer (ISSO) to provide on-site cybersecurity and Risk Management Framework (RMF) sustainment support in Washington, D.C., for a new contract. This role will serve as the single point of accountability for technical performance and remain a hands-on cybersecurity practitioner as the technical leader, Government interface, and quality authority for the entire ISSO program.

Responsibilities will include, but not be limited to:

  • Provide on-site cybersecurity and RMF sustainment support.
  • Chair internal quality reviews and ensure deliverables are complete, current, consistent, timely, and audit ready.
  • Manage technical risks, issues, escalations, SLA/KPI/AQL performance, action items, and corrective actions.
  • Support weekly reports, monthly status reports, and quarterly executive reviews, including authorization, vulnerability, POA&M, audit, and staffing status.
  • Lead a team of two Senior ISSOs and maintain coverage during absence, vacancy, surge, or suitability delay.
  • Produce accurate, concise, and audit-ready Government cybersecurity documentation.
  • Support team coverage from 7:00 a.m. to 6:00 p.m. ET (M-F) and participate in after-hours incident coverage as needed.

Minimum Qualifications:

  • U.S. Citizenship.
  • Eligibility to obtain a Tier 4 High-Risk Public Trust.
  • Minimum ten (10) years in cybersecurity.
  • Minimum seven (7) years in federal RMF/ISSO work.
  • Minimum three (3) years leading ISSO or authorization teams.
  • Hands-on CSAM experience supporting system profiles, controls, evidence, POA&Ms, and authorization workflows.
  • Working knowledge of NIST SP 800-37, 800-53, 800-53B, FIPS 199, FISMA, and applicable CISA/OMB guidance.
  • Familiarity with GRC, ITSM, SIEM, scanner, identity, endpoint, and cloud-security platforms.
  • Direct experience briefing and coordinating with ISSMs, CISOs, AOs, AODRs, System Owners, assessors, and senior Government officials.
  • Direct experience overseeing SSPs, SAPs, SARs, POA&Ms, risk assessments, control statements, and evidence packages.
  • Expert knowledge of all seven RMF steps, ATO, reauthorization, ongoing authorization, control baselines, and inheritance.
  • Working proficiency with ServiceNow, Splunk, and vulnerability-scanning platforms.

Preferred Qualifications:

  • At least one current cybersecurity certification such as CISSP, CGRC, CISM, CRISC, Security+, SecurityX, CCSP, or GIAC.

Education:

  • Associate’s degree in Cybersecurity, Information Technology, or related field. (Relevant experience may be considered in lieu of formal education.)
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