---
title: 'Senior Information System Security Officer (ISSO) at C3EL'
canonical: 'https://feeny.ai/job/senior-information-system-security-officer-isso-c3el-washington-mf7vf1jh0y1v'
type: 'job'
last_seen: '2026-09-10'
---

# Senior Information System Security Officer (ISSO) at C3EL

- **Company:** C3EL
- **Location:** Washington, DC
- **Posted:** 2026-08-28
- **Last confirmed live:** 2026-09-10
- **Apply:** https://job-boards.greenhouse.io/c3el/jobs/5225463007

## Job description

## **CONTINGENT UPON CONTRACT AWARD**

Overview:

Job Title: Senior 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 Senior 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 primary Alternate Lead, with deep CSAM, RMF, authorization, FedRAMP, cloud, identity, and assessment expertise, being capable of assuming Lead ISSO duties without service degradation for the program.

Responsibilities will include, but not be limited to:

- Provide on-site cybersecurity and RMF sustainment support.
- Independently manage categorization, control selection, implementation evidence, assessment readiness, authorization, and monitoring.
- Develop and maintain SSPs, SAPs, SARs, POA&Ms, risk assessments, control statements, inheritance records, and evidence packages.
- Support FedRAMP-authorized cloud services, provider artifacts, customer responsibilities, CRMs, SRMs, and inherited controls.
- Support privacy controls, PTAs, PIAs, and systems processing PII.
- Pre-stage evidence and coordinate SCA interviews, walkthroughs, demonstrations, findings, and comment adjudication.
- Track ATO dates, conditions, milestones, open risks, and briefing materials for AO/AODR decisions.
- 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 seven (7) years of cybersecurity.
- Minimum five (5) years in federal RMF, A&A, ISSO, or authorization work.
- 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.
- Hands-on CSAM experience supporting system profiles, controls, evidence, POA&Ms, and authorization workflows.
- Experience with Azure Government, Microsoft 365 GCC/GCC High, and cloud shared-responsibility models.
- Experience with Entra ID, Okta, privileged access, role assignments, and access recertification.

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.)

## About C3EL

## Company Overview
- **One-liner**: C3EL delivers advanced information technology, engineering, and logistics services with a core focus on Command and Control and Communications systems to the Department of Defense and other federal agencies.
- **Entity Type**: Private (Woman-Owned Small Business – WOSB)
- **Headquarters**: Tampa, Florida, United States
- **Founded**: 2012
- **Founders**: Not publicly listed; leadership includes CEO Laura Hoernig and COO Jack Rhodes

## Core Business
- **Primary Industry**: IT Services and IT Consulting, Defense & National Security
- **Target Customers**: U.S. Department of Defense (DoD), Federal Agencies, and allied partners
- **Mission/Purpose**: “Delivering advanced information technology and engineering services with a core focus on Command and Control, Communications systems to the Department of Defense and other Federal Agencies.”

## Products & Services
- **Enterprise IT Services**: Full lifecycle IT infrastructure design, implementation, and management (networks, servers, data centers).
- **Command Center Solutions**: Turn-key design, integration, and delivery of command centers, including AV and communications systems, SCIFs, and briefing centers.
- **Cloud & Virtualization**: Cloud migration, management, and optimization services.
- **Communications Solutions**: Secure, reliable full lifecycle communications (including SATCOM, tactical communications, and voice/data networks).
- **Cybersecurity**: Security operations, network defense, and compliance support.
- **Logistics & Engineering**: Logistics support, engineering services, and program management for deployed and enterprise environments.

## Market Standing
- **Valuation**: Not publicly disclosed
- **Key Metric**: Estimated annual revenue $5.0M–$25.0M (LinkedIn data); Total employees 34 (LinkedIn, +6.4% monthly growth)
- **Notable Investors/Partners**: Not publicly listed (privately held); customers include U.S. DoD and other federal agencies
- **Growth Signals**: 37 active job postings (Greenhouse), 94.7% quarterly increase in job postings, presence in 40+ countries, LinkedIn followers 2,600 (+1.1% monthly)

## Competitive Advantages
- **Woman-Owned Small Business (WOSB)** status, enabling set-aside contracting opportunities.
- **Top Secret Facility Clearance** and extensive experience with SCIFs and secure environments.
- **Vertical integration**: Senior management deploys directly with teams, ensuring high-quality execution.
- **Global footprint**: Supports operations in 40+ countries, with personnel experienced in both deployed and enterprise environments.

## Strategic Focus
- Continue to expand DoD and federal agency customer base by delivering mission-critical command, control, communications, and IT solutions.
- Invest in cloud, cybersecurity, and modernization services to meet evolving defense needs.
- Grow workforce through a disciplined hiring pipeline (37 open positions across multiple geographies, including Hawaii, Italy, Kuwait, Belgium, and U.S. bases).

## Why Work Here
- **Culture**: Employee reviews rate culture 3.9/5 and career development 4.1/5; compensation rated 4.5/5 (Glassdoor/LinkedIn).
- **Work Environment**: Supportive, mission-focused environment with a focus on professional growth; many roles require security clearance and offer the chance to work on critical national security projects.
- **Remote/Hybrid**: Many roles are on-site at government facilities (e.g., Tampa, Hawaii, overseas bases); some roles may offer flexibility, but clearance requirements often dictate location.
- **Notable Perks**: Opportunity to work directly with DoD customers, deploy with teams, and gain exposure to cutting-edge command and control technologies.

## Sources
1. [c3el.com – About Us](https://c3el.com/about-us/)
2. [c3el.com – Homepage](https://c3el.com/)
3. [c3el.com – Careers](https://c3el.com/careers/)
4. [Greenhouse – Jobs at C3EL](http://job-boards.greenhouse.io/c3el)
5. [LinkedIn – C3EL Company Page](https://www.linkedin.com/company/c3el)

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