If you’re looking for a special place to build or grow your career, you’ve found it. Whether you’re an experienced professional, a recent college graduate or somewhere in between, IDEX is a place where you can apply your existing skills and learn new ones in an environment where you can make an impact. With interesting opportunities in engineering, marketing, sales, supply chain, operations, HR, finance, and more across more than 40 diverse businesses (https://www.idexcorp.com/our-businesses/business-segments/) around the globe, chances are, we have something special for you. + **Role Title** : Principal Engineer, Aerospace & Defense + **Job Description Summary** Role Mission: The Principal Engineer, Aerospace & Defense is responsible for proposing, designing, launching, and delivering profitable aerospace projects. This role partners closely with the Business Development team and customers to support pre‑sales proposal development, engineer scalable solutions, and deliver qualified products that drive growth in aerospace, defense, and space exploration markets.Company: Mott is a technology-driven, high-precision filtration company trusted by the world’s best technical and performance brands across four core markets: Medicine, Computing Power, Clean Energy, and Space Exploration. Our products can be found everywhere…including lifesaving medical devices, artificial intelligence, and missions to Mars!The company’s strategic vision is to deliver technological breakthroughs where none currently exist. Established in 1959 and located in Farmington, Connecticut (90 miles from NYC and Boston), Mott’s aerospace and defense business has grown 50% in the last two years and is poised for continued growth. + **Job Description** **Reporting To:** Manager, Aerospace & Defense Innovation Center **Responsibilities** + Engineer custom filtration and flow‑control products from concept through qualification and delivery + Serve as a subject matter expert supporting pre‑sales activities, including cost estimating and requirements review + Act as a customer advocate to improve proposal speed, accuracy, cost, and technical depth + Lead product and process improvements to support successful transition from development to production **Expected Performance Outcomes** + Deliver new platforms with **95% on‑time delivery** and within **90% of cost estimates** + Qualify **4–6 new projects annually** through pre‑sales support + Launch **two process or product improvement initiatives per year** to reduce lead time, cost, or expand capability **Required Experience & Education** + Bachelor’s degree in mechanical, Chemical, Industrial, or Materials Engineering + Project Management education or certification; Master’s degree preferred + Minimum **5+ years** leading complex Aerospace & Defense or Government projects + Demonstrated knowledge of Aerospace & Defense qualification processes **Technical Knowledge & Skills** + Expert knowledge of filtration, compaction, sintering, welding, and manufacturable design + Proficient in GD&T, 3D modeling, and 2D drawing standards + Strong project management, planning, customer‑facing, and communication skills **Personal Attributes** Customer‑focused; results‑driven; quality‑minded; self‑directed; analytical; acts with urgency Are you ready to join a different kind of company where our people, our culture, and our commitments are centered around providing trusted solutions that improve lives around the world? **Total Rewards** The compensation range for this position is $99,800.00 - $149,600.00, depending on experience. This position may be eligible for performance based bonus plan. **Benefits Package** Our comprehensive U.S. benefit offerings include: Health benefits, 401(k) retirement savings program with company match, PTO, and more. More information on our benefits and rewards can be found on our career page: https://www.idexcorp.com/careers/our-benefits-and-rewards/ **IDEX is an Equal Opportunity Employer** . IDEX gives consideration for employment to qualified applicants without regard to race, color, religion, creed, genetic information, sex, sexual orientation, gender identity or expression, marital status, age, national origin, disability, protected veteran status, or any other consideration or protected category made unlawful by federal, state or local laws. **Attention Applicants:** If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, please let us know. Likewise, if you are limited in the ability to access or use this online application process and need an alternative method for applying, we will determine an alternate way for you to apply. Please contact our Talent Acquisition Team at lfcareers@idexcorp.com for assistance with an accommodation. These contact tools may be used only by individuals with a disability for accommodation requests. Do not inquire as to the status of an application. This posting is for an existing vacancy. ‌ Artificial intelligence is not used to screen, assess or select applicants. ‌ **Job Family:** Engineering **Business Unit:** Mott