Information Systems Security Officer

CSCI Consulting; Illinois; On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Competitive salary

PTO

Federal holidays aligned to calendar

Health benefits

401(k) retirement plan

Team building events

Professional development

Job summary

CSCI Consulting seeks a mid-level Information System Security Officer (ISSO) to maintain the DoD RMF posture for assigned systems. You will collaborate with cybersecurity engineers, architects, operations teams, and government stakeholders to keep systems secure, compliant, and mission-ready.

You will develop SSPs, manage POA&M remediation, prepare ATO packages, and perform continuous monitoring using eMASS. Strong DoD RMF knowledge and DoD 8140.03M DCWF CEH qualifications are required.

Qualifications

• Active clearance (Secret, TS preferred) and DoD/Federal systems experience.
• 3–5 years cybersecurity, RMF, or IA experience.
• Hands-on experience with eMASS workflows and documentation.
• Strong understanding of RMF processes and NIST SP 800-53 Rev. 5 controls.
• Experience authoring SSPs and managing POA&M remediation.
• Excellent written and verbal communication with stakeholders.

Responsibilities

• Develop, maintain, and update SSPs for assigned systems.
• Manage POA&M activities from identification through remediation and closure.
• Prepare, coordinate, and submit ATO packages.
• Conduct continuous monitoring per cybersecurity strategy.
• Coordinate RMF workflows in eMASS and document compliance.
• Collaborate with ISSEs, security ops, and system owners to validate controls.
• Develop SAPs and support SAR activities.
• Assist with supply chain risk management documentation and assessments.
• Support cybersecurity architecture and RMF governance initiatives.
• Stay informed on DoD cybersecurity policies and controls.

Skills

RMF expertise

SSP development

POA&M remediation

eMASS experience

DoD 8140.03M DCWF

NIST SP 800-53 Rev.5

Education

Bachelor's degree in Computer Science / Cybersecurity / Information Systems

Tools

eMASS

RMF automation tools

Job description

Job Description

CSCI Consulting is seeking a mid-level Information System Security Officer (ISSO) to support a Department of War mission environment. The ISSO will be responsible for maintaining the cybersecurity authorization posture of assigned information systems, supporting Risk Management Framework (RMF) activities, managing Authorization to Operate (ATO) packages, and ensuring ongoing compliance with DoD cybersecurity requirements.

In this role, you will partner cybersecurity engineers, system architects, operations teams, and government stakeholders to maintain secure, compliant, and mission‑ready systems.

Responsibilities

• Develop, maintain, and update System Security Plans (SSPs) for assigned systems
• Manage Plan of Action and Milestones (POA&M) activities from identification through remediation and closure
• Prepare, coordinate, and submit ATO packages
• Execute continuous monitoring activities in accordance with approved cybersecurity strategies
• Utilize Enterprise Mission Assurance Support Service (eMASS) to manage RMF workflows and compliance documentation
• Coordinate with Information System Security Engineers (ISSEs), security operations personnel, and system owners to validate security control implementation
• Develop Security Assessment Plans (SAPs) and support Security Assessment Report (SAR) activities
• Assist with supply chain risk management documentation and assessments
• Support cybersecurity architecture and governance initiatives related to RMF implementation and continuous authorization efforts
• Maintain awareness of evolving DoD cybersecurity policies, directives, and security control requirements

Minimum Requirements

• Active Secret Clearance (TS preferred)
• 3–5 years of cybersecurity, RMF, or information assurance experience supporting DoD or Federal systems
• Hands‑on experience managing cybersecurity documentation and workflows within eMASS
• Strong understanding of DoD Risk Management Framework (RMF) processes
• Working knowledge of NIST SP 800‑53 Rev. 5 security controls
• Experience independently authoring SSPs and managing POA&M remediation activities
• Strong written and verbal communication skills with the ability to interact effectively with technical and non‑technical stakeholders
• Ability to manage multiple system authorizations and compliance activities simultaneously
• DoD 8140.03M DCWF Basic Tier Certification; CEH required
• Creativity and adaptability in problem‑solving
• Ability to work with clients to understand their needs
• Strong organizational and time‑management skills
• Excellent written and verbal communication skills
• Professional presence

Preferred Skills

• Experience with eMasSer or similar RMF automation tools
• Experience supporting cloud, hybrid‑cloud, or modernized DoD environments
• Familiarity with the DoD RMF Knowledge Service and continuous authorization concepts
• Experience supporting system accreditation efforts within large federal or defense programs
• Knowledge of cybersecurity governance, risk, and compliance (GRC) best practices
• One or more DoD 8140.03M DCWF Intermediate Tier certifications, including: Security+, Cloud+, PenTest+, GCIH, GCED, GCSA, GSEC, RCCE Level 1, CPTE, FITSP‑A, CEH Practical (CEH‑P)
• Bachelor's degree in one of the following fields: Computer Science, Cybersecurity, Information Systems, Information Technology, Software Engineering, Data Science, or a related technical discipline
• Ability to work in a team environment, as well as independently
• Strong customer and vendor relationship skills
• Demonstrated ability to comply with data standards and policies
• Motivation to learn new technologies and methodologies that demonstrate value
• Past experience working with a Federal agency
• Department of War experience is a plus!

Benefits of Working at CSCI

• Competitive salaries
• Generous Paid Time Off (PTO) package
• Paid holidays aligned to the Federal calendar
• Full health benefits including medical, dental, vision, and life insurance
• 401(k) retirement plan
• Team building events
• Professional development support

Equal Employment Opportunity

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. CSCI provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

If you require an accommodation, please contact CSCI Human Resources for further assistance.