Information Systems Security Manager

Everforth, Inc.; Tampa (FL); On-site; USD 120,000 - 170,000; Full time

Job summary

Everforth ECS in Tampa, FL seeks an experienced Information Systems Security Manager (ISSM) to lead the cybersecurity posture of mission-critical DoD systems. The ISSM will serve as the principal advisor to the Program Manager, Information System Owner, and AO, ensuring RMF implementation, system security authorization, and continuous monitoring in a dynamic Special Operations environment.

The successful candidate will bring DoD RMF expertise, strong knowledge of NIST controls, and proven

Qualifications

• Bachelor’s degree in cybersecurity or related technical discipline; equivalent education/experience considered.
• Min 5 years of progressively responsible cybersecurity/IA experience, DoD/IC preferred.
• Experience performing ISSM/ISSO duties and RMF lifecycle activities.
• Experience with SSPs, SARs, POA&Ms, and ATO documentation.
• Strong ability to communicate risks to technical and non-technical stakeholders.

Responsibilities

• Manage and maintain the cybersecurity posture of assigned information systems.
• Oversee RMF activities, system authorization, and continuous monitoring.
• Serve as principal cybersecurity advisor to PM, IS Owner, AO, and stakeholders.
• Coordinate cybersecurity activities with government officials and assessors.

Skills

RMF lifecycle

NIST controls

DoD policies

Stakeholder communication

Top Secret clearance

Education

Bachelor's degree in Cybersecurity

DoD 8140 qualification

Tools

eMASS

Xacta

DISA STIGs

Job description

Everforth ECS is seeking an experienced and highly motivated Information Systems Security Manager (ISSM) to support the United States Special Operations Command (USSOCOM).

The selected candidate will be responsible for managing and maintaining the cybersecurity posture of assigned information systems, ensuring compliance with Department of Defense (DoD), USSOCOM, and applicable Intelligence Community cybersecurity policies, standards, and directives.

The ISSM will serve as the principal cybersecurity advisor to the Program Manager, Information System Owner, Authorizing Official (AO), and other government stakeholders. This individual will oversee the implementation and maintenance of cybersecurity policies, manage Risk Management Framework (RMF) activities, support system authorization processes, and ensure the confidentiality, integrity, and availability of mission‑critical information systems.

The ideal candidate will possess extensive experience supporting DoD cybersecurity programs, demonstrate strong technical knowledge of RMF and system security authorization requirements, and have the ability to operate independently in a dynamic Special Operations environment.

Required Skills

Education and Professional Experience

• Bachelor's degree in Cybersecurity, Computer Science, Information Technology, Information Systems, or a related technical discipline. Equivalent combinations of relevant education and experience may be considered where permitted by contract requirements.
• Minimum of 5 years of progressively responsible cybersecurity or information assurance experience, preferably supporting DoD or Intelligence Community systems.
• Demonstrated experience performing ISSM, ISSO, cybersecurity management, or equivalent information system security responsibilities.
• Direct, hands‑on experience supporting the DoD RMF lifecycle, including security control implementation, assessment, authorization, and continuous monitoring.
• Demonstrated experience developing and maintaining SSPs, SARs, POA&Ms, and ATO documentation.
• Experience coordinating cybersecurity activities with government Authorizing Officials, security control assessors, program managers, and system owners.
• Experience with vulnerability management, incident response coordination, security testing, and configuration management.
• Strong knowledge of NIST security controls, DoD cybersecurity policies, and information system security best practices.
• Excellent written and verbal communication skills, including the ability to explain complex cybersecurity risks to technical and non‑technical stakeholders.

DoD Cyber Workforce Qualification Requirements

• Must meet the applicable foundational qualification requirements for DCWF Work Role 722, Information Systems Security Manager, at the Intermediate proficiency level, in accordance with DoDM 8140.03 and the current DoD 8140 Qualification Matrix.
• Qualification must be established through an accepted pathway, such as approved education, training, accredited personnel certification, or an authorized experience‑based qualification assessment.
• Personnel certifications used to satisfy foundational requirements must meet applicable accreditation standards and be recognized for the assigned DCWF work role and proficiency level.
• Must satisfy applicable resident qualification requirements and maintain continuing professional development requirements as directed by DoD policy and the responsible government organization.
• Must maintain current cybersecurity credentials and provide supporting documentation as required.

Security Clearance

• Must possess an active U.S. Government Top Secret security clearance with eligibility for access to Sensitive Compartmented Information (SCI), if required by the supported program.
• Must be able to maintain required clearance, access eligibility, and applicable security requirements throughout employment.
• Must be a U.S. citizen.

Desired Skills

• Previous formal appointment as an ISSM supporting a DoD, USSOCOM, Intelligence Community, or comparable national security information system.
• Experience supporting cybersecurity operations within USSOCOM, Special Operations Forces, or other DoD combatant commands.
• Advanced cybersecurity certifications such as CISSP, CISM, CASP+ /SecurityX, or other certifications accepted under the applicable DoD 8140 qualification matrix.
• Experience using Enterprise Mission Assurance Support Service (eMASS), Xacta, or similar RMF and authorization management platforms.
• Familiarity with ACAS, Tenable Nessus, DISA STIGs, SCAP, and enterprise vulnerability management solutions.
• Experience supporting classified information systems, cross‑domain environments, or interconnected DoD networks.
• Knowledge of CNSSI 1253, Intelligence Community Directive 503, and relevant National Security System requirements.
• Experience with cloud security authorization, DevSecOps, system modernization, or emerging cybersecurity technologies.
• Familiarity with USSOCOM Manual 380-3 and the USSOCOM RMF Practitioner's Guide.
• Experience participating in CCBs and coordinating cybersecurity requirements across multidisciplinary technical teams.
• Strong organizational, leadership, analytical, and problem‑solving capabilities.

#EverforthECS1

ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law.

Everforth ECS is the federal segment of Everforth , a $4B global organization with over 10,000 employees. Our nearly 3,500 professionals deliver advanced technology solutions in data and AI, cybersecurity, and enterprise transformation, serving defense, intelligence, and federal civilian agencies.
Our work powers mission‑critical outcomes, strengthens technology partnerships, and creates meaningful opportunities for our people. We are defined by a commitment to excellence in delivery, a culture of innovation, and an environment where talent can thrive and grow.
We value:

• Attracting and developing top talent and high‑performing teams
• Fostering a culture that is engaging, accountable, and mission‑driven.

Meet the challenge. Make a difference with Everforth ECS!

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ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law.

Everforth ECS is the federal segment of Everforth , a $4B global organization with over 10,000 employees. Our nearly 3,500 professionals deliver advanced technology solutions in data and AI, cybersecurity, and enterprise transformation, serving defense, intelligence, and federal civilian agencies.

Our work powers mission‑critical outcomes, strengthens technology partnerships, and creates meaningful opportunities for our people. We are defined by a commitment to excellence in delivery, a culture of innovation, and an environment where talent can thrive and grow.

Meet the challenge. Make a difference with Everforth ECS!

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