Description: NSI requires a Junior Information System Security Officer to support the ITSRVC Program. The Junior ISSO supports the organization’s Cybersecurity and compliance program by maintaining security documentation, monitoring controls, and contributing to ongoing compliance efforts required under CMMC, NIST SP 800-171, and internal security policies. This role is ideal for early career professionals seeking to build expertise in governance, risk, and compliance within a defense contractor environment.

Responsibilities:

• Assist with maintaining and updating documentation required for CMMC and NIST SP 800-171 compliance, including SSPs, POA&Ms, policies, and procedures
• Conduct ongoing control monitoring activities, including evidence collection, weekly/monthly checks, and review of audit logs
• Support vulnerability management efforts by reviewing scans, tracking remediation, and validating closure of findings
• Participate in internal readiness assessments for CMMC Level 2 and NIST SP 800-171 compliance
• Maintain asset inventories, access control records, and configuration management documentation
• Assist with preparation for third party assessments, customer audits, and internal security reviews
• Contribute to incident response documentation, evidence gathering, and post incident reporting
• Review security alerts and escalate potential issues as appropriate
• Support security awareness and training initiatives, including rollout and tracking
• Collaborate with IT, system owners, and engineering teams to ensure security requirements are understood and implemented
• Stay up to date on changes to CMMC, NIST guidance, and DoD Cybersecurity requirements

Location: Lexington Park, MD/Hybrid

Education: Bachelor’s degree in Cybersecurity, Information Systems, Computer Science, or equivalent experience.

Required Certifications: Must hold a DoD-approved IAT II Certification, such as CompTIA Security+, or an equivalent/higher certification (e.g., CySA+, CCNA Security, GSEC, CAP, etc.).

Experience: 1-2 years of experience in Cybersecurity, compliance, audit, risk management, or IT operations. Basic understanding of Cybersecurity concepts, networking fundamentals, and system administration. Familiarity with NIST SP 800-171, CMMC, or related compliance frameworks. Strong attention to detail and ability to follow structured processes and documentation standards. Solid communication skills with the ability to engage both technical and nontechnical stakeholders.

Preferred Qualifications:

• Hands-on exposure to CMMC or NIST SP 800-171 programs
• Experience collecting, managing, or organizing compliance evidence
• Familiarity with vulnerability management tools, SIEM platforms, or GRC solutions

Security Clearance: Secret Clearance is required. Must be a U.S. citizen.

Special Notes/Instructions: NSI is a privately held, small but quickly growing company with headquarters in Lexington Park, Maryland within 5 miles of the Patuxent River Naval Air Station. Established in 2004, we are now celebrating 22 years of excellence in providing quality products and services to the Department of Defense. Our benefits package includes medical, dental, vision, Long Term Disability, Life Insurance, Short Term Disability, paid time off, paid holidays, flexible spending account, employee assistance program, tuition assistance program, 401k Plan with company match as well as a fun and enthusiastic work environment!

To Apply: NSI offers a team-oriented work environment and a competitive compensation and employee benefits package. If you have a commitment to excellence and want to join our team of top caliber professionals, we invite you to submit your resume electronically by visiting our careers website at: https://n-s-i.us/careers/apply/.

Quality, Integrity, Teamwork, Success – that's NSI!

NSI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

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