Information Systems Security Engineer Level 3 (ISSE 3)

ARSIEM

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Columbia, MD on site Until 8/21/2026 20+ years exp First posted May 4, 2025 Last posted May 12, 2026
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 primary security engineering representative on engineering teams for the design, development, implementation and/or 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.
  • Experience in either one of the following: security engineering, system/architecture modernization, sensing and monitor, crypto modernization, and threat intelligence. 

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.   
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.

Compensation (from employer):
193000–216000 USD per year

About this role

Summary

Design, assess, and implement secure systems and network environments for government clients.

Job title

Information Systems Security Engineer Level 3 (ISSE 3)

Experience level

20+ years

Minimum experience

20+ years exp

Industry

government

Location requirements

On-site in Columbia, MD; no remote work mentioned

Salary

193000–216000 USD per year

Management role

No

Skills & keywords

Required skills

security assessmentssecurity requirementssystem security designcryptographyrisk mitigationconfiguration controlcertification and accreditation

Preferred skills

risk assessmentssecurity architecturedata visualizationproject managementcommunication

Specializations

system securitycybersecurityrisk managementcryptographynetwork security
Locations

Structured locations inferred from the posting.

Columbia, MD, USA

On-site City
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