Design Engineer

Prometheus Energetics is an independent U.S.

-based merchant supplier of solid rocket motors and warheads. A joint venture between Kratos Defense & Security Solutions and Rafael Advanced Defense Systems, Prometheus combines U.S. industrial speed and credibility with decades of combat-proven designs, manufacturing know-how, and technical training to deliver field-ready products at scale.

Prometheus Energetics is seeking an experienced Design Engineer to support the mechanical design, component integration, and rapid prototyping of solid rocket motor (SRM) hardware and propulsion subsystems in Bloomington, Indiana.

In this role, you will be responsible for bringing early-stage solid rocket motor concepts to life—from motor cases, nozzles, and igniters to specialized processing and assembly tooling. You will bridge initial product definition and shop-floor execution by developing 3D CAD models, detailed 2D engineering drawings, GD&T disclosures, and Interface Control Documents (ICDs). Working closely with Systems Engineering, Analysis, Manufacturing, Quality, and Test teams, you will ensure fast-turn SRM designs meet rigorous performance, structural/thermal margins, producibility, and explosive safety standards.

• CAD Modeling & Technical Drawings:
  Lead the 3D CAD modeling and drafting of complex SRM components, including motor cases, closure assemblies, nozzles, insulation/liners, igniter housings, and secondary structural brackets using PTC Creo or Siemens NX.
• Interface Control & Documentation:
  Draft and maintain Interface Control Documents (ICDs), Interface Summary Sheets, and drawing tree structures for single motor prototype builds and test integration.
• Design Trade Studies:
  Perform design trade studies to evaluate material selection, structural joint configurations (e.g., bolted joints, composite/bonded interfaces), and manufacturability vs. weight/performance constraints.
• Tolerance & Assembly Analysis:
  Perform stacked tolerance analyses using ASME Y14.5 GD&T principles to ensure seamless fit-up and function across motor assemblies and test stand interfaces.

• Design for Producibility (DFM/DFA):
  Partner with process, tooling, and quality engineers to optimize design disclosures for rapid-turn manufacturing, energetic mixing/casting, and specialized tooling setup.
• Tooling & Ground Support Design:
  Assist in the design and conception of special tooling, rotation carts, casting fixtures, and static test stand interfaces to support safe, remote-operated energetic handling.
• Technical Milestone Reviews:
  Develop and present technical design packages for milestone reviews, including Preliminary Design Reviews (PDR), Critical Design Reviews (CDR), and internal engineering board reviews.
• Post-Fire Hardware Evaluation:
  Participate in post-fire hardware inspections, post-test disassembly, and telemetry/hardware correlation to drive iterative design improvements.

• MRB Engineering Support:
  Support Material Review Board (MRB) evaluations by evaluating discrepant hardware, performing engineering dispositions (Use-As-Is, Rework, Scrap), and determining structural/functional impacts.
• Root Cause & Anomaly Investigations:
  Lead or support formal Root Cause Corrective Action (RCCA) investigations for hardware defects, manufacturing escapes, and test anomalies using 5-Why and 8D methodologies.
• Failure Analysis:
  Utilize Failure Mode and Effects Analysis (FMEA) to identify and mitigate design-inherent failure modes early in the prototyping phase.

• Explosive & Safety Integration:
  Design…