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ISSE- Information System Security Engineer

Metronome LLC

Today
Top Secret
Unspecified
Unspecified
IT - Security
Fairfax, VA (On-Site/Office)

Job Description

Job Title: Information Systems Security Engineer (ISSE) - DCSA Support
Location: Fairfax, VA Area - Hybrid (2 Days Onsite / 3 Days Remote) - Local candidates highly preferred
Employment Type: Full-Time
Clearance Level: Top Secret Required
Certification: Active DoD 8570 IAT Level II (e.g., Security+)

Salary: $100,000-$150,000 (based on experience)
Benefits: Competitive salary and bonus structure, comprehensive health insurance, 401(k) with company match, generous PTO, flexible hybrid work options


How to Apply:

Apply directly via Metronome's Careers Page or send your resume to Careers@wearemetronome.com

Position Summary

Metronome is seeking an experienced Information Systems Security Engineer (ISSE) to support our mission-critical cloud and cybersecurity initiatives with the Defense Counterintelligence and Security Agency (DCSA). This role plays a key part in developing, securing, and maintaining cloud-based systems while leading and supporting RMF compliance efforts across multiple programs.

The ideal candidate will bring deep experience in RMF package development, technical coordination with stakeholders, and strong understanding of cloud environments, particularly AWS. We are seeking someone local to the DMV area who can collaborate with both technical teams and government customers.


Key Responsibilities
  • Lead the development and maintenance of RMF package documentation, including Security Plans, SSPs, SARs, and POA&Ms
  • Work closely with ISSOs, system engineers, and cloud engineers to align security requirements with technical solutions
  • Conduct security impact analyses, vulnerability assessments, and risk determinations
  • Provide expert guidance on NIST 800-53 controls implementation and validation
  • Support system audits, ATO submissions, and continuous monitoring activities
  • Assist with security architecture design for AWS and hybrid cloud environments
  • Coordinate with DCSA stakeholders and security authorizing officials
  • Develop security-focused technical documentation and diagrams


Required Skills

  • 5+ years of experience in Information Assurance, Cybersecurity Engineering, or ISSE roles
  • Proven experience supporting RMF lifecycle efforts (especially for DoD customers)
  • Hands-on experience developing or managing ATO packages
  • Familiarity with NIST SP 800-53, DISA STIGs, and continuous monitoring practices
  • Excellent documentation, coordination, and stakeholder communication skills
  • Active Top Secret clearance
  • Active Security+ certification (DoD 8570 IAT Level II compliant)
  • Strong understanding of cloud-based technologies and DevSecOps principles


Desired Skills

  • Experience supporting DCSA, DISA, or other DoD security organizations
  • Background in AWS environments and/or hybrid infrastructure
  • Experience working with STIG Viewer, SCAP tools, or eMASS


About Metronome, LLC



Metronome is a spark that ignites passion for our customers and each other. We offer professional services to Government customers that keep projects pulsing. We believe in taking care of people so they can put their best foot forward to support the mission.



Background Screening/Check/Investigation: Successful Completion of a Background Check will be required as a condition of hire.



Benefits: 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 include, but are not limited to, Medical, Vision & Dental Insurance, Life Insurance, Paid Time-Off & Company Paid Holidays, Personal Development & Learning Opportunities.



Application Process: Please follow all instructions carefully. Errors or omissions may affect your consideration for employment.



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



Evaluation Process: Metronome will evaluate applicants based on how well they meet the qualifications of the position above. Your completed application (including questionnaire, resume, and online application) will be used to determine your eligibility and how well you meet the qualifications for this position.



Your responses to the questionnaire may be compared to your resume and application; if either your resume or application contradicts or does not support your responses, you will disqualify yourself and not receive further consideration for this job.



Equal Employment Opportunity Policy



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.



Reasonable Accommodation Policy



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 hr@wearemetronome.com or 703-957-4082. Determinations on requests for reasonable accommodation will be made on a case-by-case basis.
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Job Category
IT - Security
Clearance Level
Top Secret