406 - Senior Information Systems Security Officer

ARSIEM; Fort Meade (FL); On-site; USD 153,000 - 171,000; Full time

Job summary

ARSIEM is seeking a Senior Information Systems Security Officer to lead risk management, compliance, and the ongoing security authorization of critical systems for a government client in Fort Meade, MD.

Responsibilities include maintaining the appropriate security posture, continuous monitoring, audits, and supporting reaccreditation efforts, with a TS/SCI clearance and polygraph as a requirement.

Qualifications

• Bachelor’s degree with 8+ years of relevant experience or Master’s with 6+ years.
• Associates degree with 10+ years or high school/GED with 12+ years may be considered.
• IAM Tier 1 certification required.

Responsibilities

• Maintain operational security posture for an information system.
• Monitor networks to detect non-compliance and vulnerabilities.
• Follow security processes and contribute to RMF program.
• Perform regular audits of information systems.
• Assist ISSM in preparing systems for periodic reaccreditation.

Skills

InfoSec leadership

Security compliance

Communication

NIST RMF

Education

Bachelor’s degree + 8+ years

Associate’s degree + 10+ years

High school diploma/GED + 12+ years

IAM Tier 1 certification

Job description

About ARSIEM Corporation

At ARSIEM Corporation we are committed to fostering a proven and trusted partnership with our government clients. Weprovide support to multiple agencies across the United States Government. ARSIEMhas an experienced workforce of qualified professionals committed to providing the best possible support.

As demand increases, ARSIEM continues to provide reliable and cutting-edge technical solutions at the best value to our clients.That means a career packed with opportunities to grow and the ability to have an impact on every client you work with.

ARSIEM is looking for a Senior Information Systems Security Officer to lead the risk management, compliance, and ongoing security authorization of critical systems to ensure they meet strict government and industry cybersecurity standards. This position will support one of our government clients in Fort Meade, MD.

Responsibilities

• Ensure the appropriate operational security posture is maintained for an information system
• Support continuous monitoring of networks to detect and correct areas of security non-compliance, unmitigated vulnerabilities, and other risks
• Follow consistent security processes and play a role in the information systems continuous monitory program
• Perform regular audits of information systems
• Assist the information systems security manager in preparing the information system for periodic reaccreditation

Minimum Qualifications

• Bachelor’s degree plus 8-years of relevant experience or Master’s degree plus 6-years of relevant experience.
• An Associate’s degree or 18 semesters hours of military coursework/training in a computer-related field plus 10-years of relevant experience or high school diploma/GED plus 12-years of relevant experience may be considered.
• Information Assurance Manager (IAM) Tier 1 certification.

Preferred Qualifications

• Experience as an ISSO/ISSE with emphasis on Defense-in-Depth principles, network, and enterprise security architecture
• Experience applying the principles of the NIST 800-53 including the procedures in the Risk Management Framework (RMF)
• Familiarity with STE/STN requirements
• Excellent written and oral communication skills

$153,000 - $171,000 a year

The ARSIEM pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) job responsibilities, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other laws.

Benefits

For an overview of our benefits, please visit our benefits tab.

https://www.arsiem.com/careers/

Original Posting Date: 2026-08-28

Clearance Requirement

This position requires an active TS/SCI with a polygraph. You must be a U.S. citizen for consideration.

Candidate Referral

Do you know someone who would be GREAT at this role? If you do, ARSIEM has a way for you to earn a bonus through our referral program for persons presenting NEW (not in our resume database) candidates who are successfully placed on one of our projects. The bonus for this position is $5,000, and the referrer is eligible to receive the sum for any applicant we can place within 12 months of referral. The bonus is paid after the referred employee reaches six months of employment.

ARSIEM is proud to be an Equal Opportunity and Aff