Performance Specialist Engineer

Job Title Performance Specialist Engineer Location & Working Pattern Indianapolis, IN (Hybrid – 3 days onsite on average) Job Summary A Performance Specialist Engineer will work with cross‑functional product teams to design innovative power and propulsion systems and support customer engagements related to cycle and system level performance optimization. Responsibilities Perform power and propulsion cycle analyses and predict performance using computer simulations and engineering methods to meet system requirements, considering steady‑state and transient performance. Exercise and train others on Numerical Propulsion System Simulation (NPSS) models, applying thermodynamics principles, test analyses, and whole‑engine sensitivities. Diagnose and resolve system‑level issues in power and propulsion design, performance, operability, and operation. Develop innovative solutions for power conversion, aircraft propulsion systems, and novel engineering challenges. Influence thermodynamic system cycles to optimize applications using robust engineering techniques. Support propulsion systems performance testing, prepare technical reports, and present engineering analysis and results. Communicate power and propulsion performance conclusions to customers and stakeholders, both internal and external. Qualifications Bachelor’s degree in Engineering with ≥7 years of experience in thermodynamics, gas dynamics, fluid mechanics, and/or engine design; or Master’s degree in Engineering, Physics or Mathematics with ≥5 years of experience in the same areas; or PhD in Engineering, Physics or Mathematics with experience in thermodynamics, gas dynamics, fluid mechanics and/or engine design. Eligibility to obtain and maintain a U.S. security clearance, requiring U.S. citizenship. Preferred Qualifications Strong technical knowledge of design methodologies and multidisciplinary engineering concepts such as manufacturing, aerodynamics, thermodynamics, thermal and mechanical analysis. Ability to adapt to varying fidelity levels throughout project stages. Object‑oriented experience simulating/modelling gas turbine cycles, hybrid electric systems, cycle analysis, engine operability, sizing, and/or preliminary design analysis; NPSS experience and proficiency in programming languages. Expertise in statistical visualization tools. Knowledge of robust design techniques and principles. Collateral secret clearance or higher is highly desirable. Benefits Competitive salary with discretionary bonus, comprehensive Health, Dental, Vision, and Life insurance, flexible spending account, health savings account, 401(k) with company match, Employee Assistance Program, Paid Time Off, paid holidays, parental and family care leave, tuition reimbursement, and long‑term incentive plan. Hybrid working arrangement – attend office on average three days per week. Additional Information Relocation assistance is available. Eligible employees may work remotely from any state except Idaho, Nebraska, Nevada, Vermont, and Wyoming. Rolls‑Royce is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to any protected characteristics. Closing Date: 07/17/2026 #J-18808-Ljbffr Rolls-Royce