
Staff Mechanical Design Engineer
Required skills
- flight hardware
- mechanisms
- structures
- avionics packaging
- mechanical systems
- delivery
- concept
- flight
- technical excellence
- engineering problems
Nice to have
- nonlinear FEA
- contact
- material nonlinearity
- large deformation
- model correlation
- physical test data
Role summary
Castelion is seeking a Staff Mechanical Design Engineer with 8+ years of experience in designing, analyzing, testing, and delivering flight hardware. This role requires a deeply technical engineer to serve as a domain expert and technical leader, owning mission-critical hardware from concept to flight. Responsibilities include leading design and analysis, performing structural analysis (FEA, statics, vibration), driving rapid design iterations, and hands-on troubleshooting. The engineer will also mentor junior engineers and improve engineering practices. A Bachelor's degree in Mechanical Engineering or a related field is required.
Why Castelion, Why Now
Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus, ownership, and excellence are decisive advantages - and we're building a world-class team to turn bold ideas into real capability.
This is a rare opportunity to join at an early stage, where you'll have significant ownership, collaborate with exceptional teammates, and make a direct, measurable impact on our mission and the future of the company - regardless of your function.
Staff Mechanical Design Engineer
Castelion is seeking a high-output Staff Mechanical Design Engineer with 8+ years of experience designing, analyzing, testing, and delivering flight hardware. This role is for a deeply technical engineer who can serve as a domain expert and technical leader while owning mission-critical hardware from concept through flight.
The Staff Mechanical Design Engineer will develop expertise in an area such as mechanisms, structures, avionics packaging, or other mechanical systems, and will set a high bar for technical excellence across the team. This person will be expected to solve complex engineering problems independently, make sound design and analysis trade-offs, and mentor engineers to grow their technical capabilities.
Responsibilities
Basic Qualifications
Preferred Skills and Experience
Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details.
Other Duties
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.
Additional Eligibility Requirements
This position may require access to classified information or restricted U.S. Government sites, systems, or information, as determined by the Company and/or applicable U.S. Government requirements. If the position is so designated, your employment in the role may be contingent upon your ability to obtain and maintain the required U.S. Government security clearance or other government authorization, and to satisfy any citizenship or other eligibility requirements imposed by applicable law, regulation, executive order, or government contract requirements. You will be notified if and when such requirements apply.
Affirmative Action/EEO Statement
Castelion is an Equal Opportunity Employer. We are committed to providing equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.
Castelion is committed to providing reasonable accommodations to qualified individuals with disabilities throughout the application and hiring process. If you require a reasonable accommodation to complete an application, participate in the interview process, or otherwise participate in the hiring process, please contact hr@castelion.com. Requests for accommodation will be considered on an individual basis and handled in accordance with applicable law.
Castelion is committed to fostering a workplace where employment decisions are based on qualifications, business needs, and the ability to perform the essential functions of the role, with or without reasonable accommodation.
EAR/ITAR Requirements
This position requires access to export-controlled information, and as such, employment (or hiring of a contractor) is contingent upon the candidate’s ability to access all applicable export-controlled information without additional export licensing being required by the Bureau of Industry and Security and/or the Directorate of Defense Trade Controls.
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