ISSE Security Engineer

Job Title

Information Systems Security Engineer (ISSE)

Fort Belvoir, VA

Full-time

TS/SCI

DoD 8570 IAT Level II (e.g., Security+)

$110,000 – $160,000

Competitive salary and bonus structure, comprehensive health insurance, 401(k) with company match, generous PTO and remote work options.

This role supports a DoD program at Fort Belvoir, VA. On-site presence: 60%, Travel: 0%, On-call: 0%. Candidate will perform system or network designs that encompass multiple enclaves, including those with different 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.

• Create, review and edit authorization documentation for completeness and accuracy in accordance with federal and DoD policy.
• Understand and implement DoD RMF system accreditation processes.
• Assess use case and operational risk of integrated open source, and GOTS/COTS software components.
• Use vulnerability management systems, automated security scanning tools, and system accreditation record systems.
• Grasp new concepts, facilitate information exchanges for data gathering, and collaborate with diverse audiences.
• 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.
• Apply existing knowledge of IA policy, procedures, and workforce structure to design, develop, and implement secure networking, computing, and enclave environments.
• Interact well with others to complete work.

• Current TS/SCI level U.S. Government clearance for all candidates must be a U.S. Citizen.
• 9+ years of experience as an ISSE with large multi‑tiered programs and a bachelor’s degree in a related field; or 7 years relevant experience with a master’s degree; or high school diploma or equivalent and 13 years relevant experience.
• Experience implementing DoD system accreditation processes (DIACAP acceptable and RMF preferred).
• Working knowledge of TCP/IP suite of protocols and services, computer architectures, and network topologies.
• 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.
• Ability to work independently and as part of a team.
• Flexibility to adapt to schedule changes as needed.

• CIISP certification.

• Select Create Profile and Apply to Requirement.
• Complete your Profile and Answer the Questionnaire.
• Upload a current resume.
• Complete the Online Application and Submit.

Successful completion of a background check will be required as a condition of hire.

Metronome does not discriminate in employment on the basis of race, color, religion, sex (including pregnancy and gender identity), national origin, political affiliation, sexual orientation, marital status, disability, genetic information, age, membership in an employee organization, retaliation, parental status, military service, or other non‑merit factor.

Metronome is committed to providing reasonable accommodations to applicants with disabilities where appropriate. A reasonable accommodation is any change to a job, the work environment, or the way things are usually done that enables an individual with a disability to apply for a job, perform job duties or receive equal access to job benefits. Applicants requiring reasonable accommodation for any part of the application process or hiring process should contact Metronome Human Resources at  or .

Determinations on requests for reasonable accommodation will be made on a case‑by‑case basis.

Metronome offers a comprehensive benefits package that reflects our commitment to creating a diverse and supportive workplace. Benefit eligibility is determined on the type of position (full‑time, part‑time, temporary). Metronome’s range of benefits includes, but are not limited to, medical, vision & dental insurance, life insurance, paid time‑off & company paid holidays, personal development & learning opportunities.