Principal Systems Engineer with Security Clearance

Principal Systems Engineer – MBSE (Intelligence Community)
Location: Sterling, VA 20166
Work Schedule: 8:00 AM – 5:00 PM Employment Type: Full-Time
Salary Range: $120,000 – $140,000 annually, plus full benefits
Clearance Requirement: Active and transferable TS/SCI with CI Polygraph (required prior to start)
Citizenship: U.S. Citizenship required Role Overview
An organization supporting Intelligence Community missions is seeking a Principal Systems Engineer (MBSE) to provide enterprise-wide systems engineering and integration support. The selected candidate will apply Model-Based Systems Engineering (MBSE) and Digital Engineering practices to define system architectures, manage interfaces, and ensure end-to-end traceability of requirements to technical solutions.
This role supports complex, mission-critical systems and involves developing and maintaining system models, performing computer-based simulations, and collaborating closely with government, military, SETA, and contractor stakeholders to deliver integrated solutions. Key Responsibilities • Apply Model-Based Systems Engineering (MBSE) methodologies to support system architecture definition, integration, and analysis • Develop, maintain, and analyze SysML-based system models using Cameo Systems Modeler or equivalent tools • Ensure requirements traceability from customer needs through system design and verification artifacts • Utilize digital engineering tool chains to enhance design, integration, and test workflows • Conduct computer-based simulations to analyze and optimize system performance • Support interface definition and management across system elements and external dependencies • Collaborate with internal and external stakeholders, including Government, Military, SETA, and contractor teams • Contribute to technical reviews, impact assessments, and engineering documentation • Support project planning, execution, and risk management activities across program lifecycles Required Qualifications • Practical experience applying Model-Based Systems Engineering (MBSE) principles • Hands-on experience with Cameo Systems Modeler or equivalent MBSE tools • Familiarity with Digital Engineering practices and integrated tool chains • Experience using high-level programming languages (e.g., Python) • Demonstrated engineering technical depth and project management experience • Proven ability to collaborate effectively in multi-disciplinary, customer-facing environments • Active and transferable TS/SCI with CI Polygraph (required prior to start date) • U.S. Citizenship required Desired Qualifications • Experience with systems installation, integration, and test activities • Proficiency in Python, C++, or similar programming languages • Experience conducting Request for Change (RFC) impact reviews and assessments • Familiarity with NSIS requirements and rapid delivery methodologies • Evidence of strong customer relationships and stakeholder engagement • Experience working across multiple contracts and geographic locations • Proficiency with Atlassian JIRA, Confluence, and collaborative engineering tools • Strong oral and written communication skills, with the ability to clearly convey complex technical concepts Education & Experience Requirements • Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM preferred) • Minimum experience requirements: ◦ 6 – 8 years of prior engineering experience