Information Systems Security Officer

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!

About CSCI

CSCI is an award-winning information technology and financial management consulting firm founded on one simple philosophy: “Do what is right, always.” We apply this philosophy across all elements of our growing business, from delivering world-class s ervices for customers to providing an environment where associates thrive both personally and professionally. At CSCI, work and fun aren’t diametrically opposed!

At CSCI, our goal is to hire people with proven track records and retain them with an energizing, diverse company culture. We value each associate’s natural drive to excel, and we provide them with the freedom to do things their way. CSCI seeks the best and brightest in the industry—those who are ready to move their lives and career forward. Join us today and get excited about Mondays again!

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

Legal

CSCI complies with all applicable Federal, state, and local employment regulations. Please reach out to HR@csciconsulting.com with any questions.

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. For questions regarding the qualifications listed above, please contact the CSCI Recruiting Team.

E-Verify

CSCI participates in E-Verify to confirm the employment eligibility of all newly hired employees. For more information, please visit  www.dhs.gov/E-Verify .

California Consumer Privacy Act (CCPA) Notice

As part of the application and recruitment process, CSCI Consulting, Inc. may collect personal information as described under the California Consumer Privacy Act (CCPA).

This information is collected solely for employment-related purposes, including evaluating your qualifications, processing your application, and complying with legal obligations.

By applying to this position, you acknowledge that you have read and understand the following notice regarding the collection of your personal information as a job applicant:

Categories of Information Collected: Personal identifiers, employment history, educational information, and any other information provided in your application or as part of the interview process.

Purposes for Collecting Information: To review your application, assess your qualifications, and manage the hiring process.

Retention and Security: Information collected will be retained indefinitely and will be securely stored and handled in accordance with CCPA guidelines and CSCI Consulting, Inc. policies.

Rights of Applicants: Under CCPA, California residents have the right to request information about the personal data we collect, delete it, and request restrictions on certain uses. However, some information may be retained as required by law.

For further information, or to exercise your rights under the CCPA, please contact CSCI’s HR team.

Disclaimer

The above declarations are not intended to be an all-inclusive list of the duties and responsibilities of the job described, nor are they intended to be such a listing of the skills and abilities required to do the job. Rather, they are intended only to describe the general nature of the job.