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ISSE Security Engineer

Metronome, LLC
401(k), remote work
United States, Virginia, Alexandria
Apr 23, 2025
Job Title: Security Engineer (ISSE)

Location: Fort Belvoir, VA

Status: Full-time

Clearance Level: TS/SCI

Education: Must hold DoD 8570 IAT Level II (e.g. Security+)

Salary: $110,000-$160,000

Benefits: Competitive salary and bonus structure, Comprehensive health insurance, 401(k) with company match, Generous PTO and remote work options.

Application: Apply here, or on our Careers Page @ Careers - Metronome (wearemetronome.com), email your resume to r.derring@wearemetronome.com

Description: This role supports a DoD program at Fort Belvoir, VA. On-site presence: 60%, Travel: 0%, On-call: 0%.

Metronome is looking for an Information Systems Security Engineer (ISSE). Candidate will perform system or network designs that encompass multiple enclaves, to include those with differing data protection/classification requirements. The candidate should understand distributed architectures and cloud-based systems for big data applications. Must be willing to work on-site five days per week.

  • Will create, review and edit authorization documentation for completeness and accuracy in accordance with federal and DoD policy.
  • Thoroughly understand and be able to implement DoD RMF system accreditation processes.
  • Assess use case and operational risk of integrated open source, and GOTS/COTS software components.
  • Will use vulnerability management systems, automated security scanning tools, and system accreditation record systems.
  • Must be able to grasp new concepts, facilitate information exchanges for data gathering, and collaborate with diverse audiences.
  • Will follow established processes where applicable, and establish and execute defensible processes where none are prescribed.
  • Provide security planning, assessment, risk analysis, and risk management support.
  • Recommend system-level solutions to resolve security requirements and guide the development team in meeting the security posture requirements.
  • Support the Government in the enforcement of the design and implementation of trusted relationships among external systems and architectures.
  • Must apply existing knowledge of IA policy, procedures, and workforce structure to design, develop, and implement secure networking, computing, and enclave environments.
  • Must be able to interact well with others to complete work.
  • Required Skills:
  • Security Clearance - A current TS/SCI level U.S. Government clearance is required and therefore all candidates must be a U.S. Citizen.
  • 9+ years of experience as an ISSE with large multi-tiered programs and Bachelors in related field; OR 7 years relevant experience with Masters in related field; OR High School Diploma or equivalent and 13 years relevant experience.
  • Experience implementing DoD system accreditation processes (DIACAP acceptable and RMF preferred).
  • A working knowledge of TCP/IP suite of protocols and services, computer architectures, and network topologies is required.
  • DoD 8570 compliance with IAT Level II (SSCP, Security+, CCNA-Security, or GSEC certification)
  • Experience with DISA STIGs and SRGs, vulnerability management systems, mitigation and compliance processes, and reviewing results from automated security scanning tools.
  • The ability to work independently and as part of a team is needed.
  • Flexibility is essential to adapt to schedule changes as needed.

- CIISP

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