> Markdown version of [/jobs/ext/2983809-sentinel-principal-sr-principal-systems-engineer-19809](https://www.wearedevelopers.com/jobs/ext/2983809-sentinel-principal-sr-principal-systems-engineer-19809). 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). --- # Sentinel - Principal/Sr. Principal Systems Engineer - 19809 - **Company:** Northrop Grumman - **Location:** Roy, UT, United States - **Experience:** Expert - **Salary:** $98,400.0 - $147,600.0 - **Contract:** Permanent contract - **Skills:** Systems Engineering, Network Interface Controllers, Systems Development Life Cycle, Software Tools, Requirements Management, SAP (Applications), MagicDraw, DODAF - **Published:** September 18, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9177647/sentinel-principalsr-principal-systems-engineer-19809 ## About the Role This requisition may be filled at either the Principal Systems Engineer Level (T-03) or Sr. Principal Systems Engineer Level (T-04)., * Must be a US Citizen with an active DoD Secret Clearance, at time of application, current and within scope, with an investigation date within the last 6 years * Must have the ability to obtain and maintain Special Access Program (SAP) approval within a reasonable period of time, as determined by the company to meet its business need * 2+ years performing requirements and verification work, * Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university and 5 Years of related experience; 3 Years with Masters; 1 Year with PhD, * Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline from an accredited university and 8 Years of related experience; 6 Years with Masters; 4 Years with PhD * 2+ years working in requirements management tools (e.g. DOORS) OR 2+ years performing requirements and verification work, * Experience modeling with Cameo Enterprise Architecture or MagicDraw (No Magic, Inc.) or other architecture modeling tools * 3+ years of Systems engineering experience * 2+ years working in Interface Control Documentation * Experience with DoDAF and UPDM or UAF Profiles * Experience with complex system development on large programs * Experience with flight hardware ## Description The selected candidate will be reporting to the AVE Requirements, Interfaces, and Architecture (RIA) Lead. They would be responsible for Systems Engineering Interfaces artifact and design development for one or more of the Missile Elements (i.e. Booster Stages, Guidance & Control, Reentry Vehicle etc) in the AVE Segment-System. The selected engineer will be responsible for multiple tasks within requirements, verification, and interfaces for the Aerospace Vehicle Equipment (AVE) Segment. The engineer will be responsible for performing tasks dealing with interface definition, requirement decomposition, compliance tracking, verification planning and verification execution. Specific duties to include, but are not limited to the following: * Lead the development of key interface artifacts for the GBSD Missile (AVE) within Interface Control Documents (ICD). Additionally, adding portions of their content into the MBSE model * Lead the development of requirement decomposition and refinement in Performance Specifications based on knowledge of the functional architecture and performance budgets. * Work with the Integrated Product Team (IPT) Point of Contacts (POC) to review mechanical, thermal/structural, fluid, software and logical interface designs by leading Interface Working Groups between the interface stakeholders * Verification planning for the AVE requirements and interface requirements. Verification planning will transition into verification execution which includes development and review of verification artifacts, requirement verification report generation, and management of the approval process. * Work with their MBSE counterparts to ensure the requirements are integrated into their designated model-based artifacts (e.g. DOORs, Cameo) * Support TMRR execution including Preliminary Design Review (PDR) and Milestone B re-certification * Support to incremental CDR execution eventually culminating in an AVE CDR (includes execution of CDR, readiness assessment) * Support to flight design review (FDR) * Work in a collaborative environment, across all system functions. 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