Senior Cybersecurity Engineer

Company : Modern Technology Solutions Inc

Job Description - Senior Cybersecurity Engineer

Modern Technology Solutions, Inc. (MTSI) is seeking a Senior Cybersecurity Engineer to join our team in Springfield, VA. Qualified candidates must be U.S. citizens with a TS/SCI clearance and be able to obtain a CI Polygraph.

Responsibilities:

Support daily cybersecurity operations for AI/ML T&E environments, tools, applications, and operational evaluation platforms.
Maintain compliance with RMF and ATO requirements through management of security documentation, control tracking, and operational security processes.
Support development, maintenance, and update of ATO packages, RMF artifacts, SSPs, and security compliance documentation.
Track and manage POA&Ms, vulnerability findings, remediation activities, and security action items.
Execute or coordinate required vulnerability scanning and security assessment activities across operational environments.
Facilitate secure deployment and integration of AI/ML tools, models, datasets, and evaluation pipelines across NGA operational domains including COE, SECNET, and SBU.
Support secure operations across multiple classification levels including UNCLASSIFIED, SECRET, and TS/SCI environments.
Identify, assess, escalate, and support remediation of cybersecurity risks impacting operational T&E activities.
Support implementation of security practices within DevSecOps workflows, operational pipelines, and AI/ML evaluation environments.
Collaborate with ISSMs, engineers, developers, and mission stakeholders to support secure and compliant operational execution.
Maintain audit-ready cybersecurity documentation and support operational readiness activities.

Required Qualifications:

8+ years of relevant experience
Experience supporting cybersecurity operations, RMF compliance, vulnerability management, or security documentation activities.
Familiarity with RMF, ATO processes, POA&M tracking, and operational cybersecurity practices.
Understanding of cybersecurity concepts related to operational systems, cloud environments, or enterprise infrastructure.
Ability to support secure operational environments and work collaboratively within multidisciplinary technical teams.
Strong analytical, organizational, and communication skills.

Desired Experience:

Experience supporting DoD, NGA, or Intelligence Community programs.
Familiarity with DevSecOps workflows, cloud security, and operational AI/ML environments.
Experience supporting vulnerability scanning, compliance assessments, or operational security monitoring activities.
Familiarity with NGA operational domains, classified environments, and secure system integration processes.
Security certifications such as Security+, CySA+, SSCP, or equivalent

Education Requirements:

Bachelor’s Degree in IT or STEM related field, or additional relevant experience in lieu of a degree.
Security certifications such as CISSP, CASP+, Security+, CySA+, SSCP, CCSP, or equivalent.

Clearance Requirements:

Active TS/SCI clearance and the ability to pass a CI polygraph within 30 days.

The pay range for this position is $100,000 to $150,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applications will be accepted on an ongoing basis. This posting will be renewed periodically until the position is filled.

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Senior Cybersecurity Engineer

Job Description - Senior Cybersecurity Engineer

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