Information Systems Security Engineer Level 3 (ISSE 3)

Company: ARSIEM
Location: Columbia
Posted on: February 16, 2026

Job Description:

Job Description Job Description About ARSIEM Corporation At ARSIEM Corporation we are committed to fostering a proven and trusted partnership with our government clients. We provide support to multiple agencies across the United States Government. ARSIEM has 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 currently looking for an Information Systems Security Engineer 3 to participate as a security engineering representative on engineering teams for the design, development, implementation, and integration of secure networking, computing, and enclave environments. This position will support one of our Government clients in Columbia, MD. Responsibilities Perform, or review, technical security assessments of computing environments to identify points of vulnerability, non-compliance with established Information Assurance (IA) standards and regulations, and recommend mitigation strategies. Validate and verify system security requirements definitions and analysis, and establish system security designs. Design, develop, implement, and/or integrate IA and security systems and system components, including those for networking, computing, and enclave environments, including those with multiple enclaves and differing data protection/classification requirements. Support the building of security architectures. Enforce the design and implementation of trusted relations among external systems and architectures. Assess and mitigate system security threats/risks throughout the program life cycle. Apply system security engineering expertise in one or more of the following: System security design process Engineering life cycle Information domain Cross-domain solutions COTS and GOTS cryptography Identification, authentication, and authorization System integration Risk management Intrusion detection Contingency planning Incident handling Configuration control and change management Auditing Certification and accreditation processes Minimum Qualifications 20 years of experience as an Information Systems Security Engineer Versed in principles of lA, including confidentiality, integrity, non-repudiation, availability, and access control Experience interacting directly with the customer and other project team members Experience generating system-level solutions to resolve security requirements Experience developing functional and secure system architectural design plans A Bachelor's Degree in Computer Science, Information Assurance, or Information Security System Engineering is required. A Master's Degree in Computer Science, Information Assurance, or Information Security System Engineering may be substituted for two (2) years of experience. Four (4) years of additional ISSE experience may be substituted for a Bachelor's degree. Experience supporting security authorization activities in compliance with: NSA/CSS Information System Certification and Accreditation Process (NISCAP) DoD Risk Management Framework (RMF) NIST Risk Management Framework (RMF) NSA/CSS business processes for security engineering. Certifications DoD 8570 compliance w/IASAE Level 3 required CISSP-ISSEP required Preferred Qualifications Experience with risk assessments, security architect solutions, data visualizations, project management, and strong verbal and written communication are preferred. 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: 2025-05-28 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 $10,000, and the referrer is eligible to receive the sum for any applicant we are able to place within 12 months of referral. The bonus is paid after the referred employee reaches 6 months of employment. ARSIEM is proud to be an Equal Opportunity and Affirmative Action 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, age, or any other federally protected class. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Keywords: ARSIEM, Philadelphia , Information Systems Security Engineer Level 3 (ISSE 3), IT / Software / Systems , Columbia, Pennsylvania