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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Systems Engineer - **Company:** MKS2, LLC - **Location:** Sterling, VA, United States - **Experience:** Expert - **Salary:** $120,000.0 - $140,000.0 - **Contract:** Permanent contract - **Skills:** Systems Engineering, Confluence, JIRA, C++ (Programming Language), Python (Programming Language), Performance Tuning, Software Tools, Requirements Traceability, Systems Modeling Language, Systems Architecture, Programming Languages - **Published:** August 10, 2026 - **Apply:** https://www.clearancejobs.com/jobs/8770284/principal-systems-engineer ## About the Role * 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 ## Description 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., * 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 ## Related Videos - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Model Based Systems Engineering in an Agile Product Development Process](https://www.wearedevelopers.com/videos/68-model-based-systems-engineering-in-an-agile-product-development-process) - [ Secure Code Superstars: Empowering Developers and Surpassing Security Challenges Together](https://www.wearedevelopers.com/videos/422-secure-code-superstars-empowering-developers-and-surpassing-security-challenges-together) - [42 x 2 Canvases Later: Two Years, Two Minds, Many Lessons](https://www.wearedevelopers.com/videos/1458-42-x-2-canvases-later-two-years-two-minds-many-lessons) - [A Founder's Journey : From Startup Chaos to Purposeful Growth](https://www.wearedevelopers.com/videos/1926-a-founder-s-journey-from-startup-chaos-to-purposeful-growth) - [Designing UX for SRE Agents in High-Stakes Incidents](https://www.wearedevelopers.com/videos/100003-designing-ux-for-sre-agents-in-high-stakes-incidents) ## Related Articles - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Software Engineer Career: Things You Should Know](https://www.wearedevelopers.com/magazine/143-software-engineer-career-things-you-should-know) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Events like RSAC Get You CISOs. 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