> Markdown version of [/jobs/ext/3089951-principal-systems-engineer-ts-sci](https://www.wearedevelopers.com/jobs/ext/3089951-principal-systems-engineer-ts-sci). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Systems Engineer (TS/SCI - **Company:** DeNOVO Solutions - **Location:** Aurora, CO, United States - **Salary:** $225,000.0 - $275,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Systems Engineering, Confluence, JIRA, Cloud Computing, Configuration Management, Software Documentation, Cyber Security, Enterprise Architecture Framework, Internet Security, Interoperability, Requirements Management, Software Requirements Analysis, Systems Modeling Language, Systems Architecture, HybridCloud, Information Technology, Api Design - **Published:** September 26, 2026 - **Apply:** https://www.careerbuilder.com/job-details/principal-systems-engineer-ts-sci-with-polygraph-aurora-co--efec150e-4ba7-428c-9d10-79d6b55f9600 ## About the Role * Experience: 15 to 20 years of related professional experience supporting programs and contracts of similar scope, type, and complexity., * Bachelor's degree in a related engineering discipline (e.g., Statistics, Mathematics, Operations Research, Cybersecurity, Engineering, or Computer Science). + In lieu of a Bachelor's degree, two additional years of related experience may be substituted. * A Master's degree may be substituted for two years of experience; a PhD may be substituted for four years of experience., Clearance: TS/SCI with CI Polygraph, Application Programming Interface (API), Atlassian JIRA, Computer Science, Configuration Management, Disability Accommodations, Diversity Recruiting, Documentation Models, Enterprise Architecture, Equal Employment Opportunity (EEO), Federal Laws and Regulations, Government Standards, Hybrid Cloud, Integrated Circuits (ICs), Intelligence Community, Internet Security, Interoperability, Leadership, Legal, Mathematics, Medical Conditions, Medical Genetics, Mentoring, Military, Multitasking, Operations Research, Performance Modeling, Professional Services, Regulatory Compliance, Requirements Management, Sensitive Compartmented Information (SCI), Simulation, Small Business, Standards Strategy, Statistics, System Architecture, Systems Engineering, Systems Maintenance, Top Secret Clearance, Traceability ## Description DeNOVO Solutions is seeking a Systems Engineer - Principal to define and guide enterprise-level system-of-systems architectures across mission-critical programs. This position plays a key leadership role in developing frameworks, integration standards, and compliance strategies to ensure secure, scalable, and high-performance system delivery within classified environments. Why You'll Love This Role: * You'll Drive the Enterprise: Lead large-scale architecture and integration strategies that impact national missions. * You'll Deliver Excellence: Oversee critical system documentation, performance modeling, and compliance efforts. * You'll Mentor and Lead: Shape modernization initiatives and mentor senior engineers across multiple projects. A Day in the Life: * Define system-of-systems architectural frameworks and standards. * Guide multi-layer integration and interoperability solutions. * Advise on scalability, redundancy, and technology selection. * Lead configuration audits and design reviews. * Mentor architecture teams and support enterprise modernization. * Ensure architecture meets operational and accreditation objectives. * Define and maintain system requirements traceability. What You Bring to the Table: * MBSE/SysML, * Advanced system modeling and simulation * Requirements management (JIRA, Confluence) * System baselining * API design and governance * Configuration management * Enterprise architecture frameworks * Cloud/hybrid integration * Compliance with governmental processes and standards.