Senior Electronics Design and Analysis Engineer

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.  

Sr. Electronics Design and Analysis Engineer

We’re looking for a Sr. Electronics Design and Analysis Engineer to help design and validate next-generation hypersonic defense systems. You’ll work in a fast-moving startup environment where analysis directly informs design decisions, hardware builds, and flight readiness. This role offers high ownership, close collaboration with design and test teams, and the opportunity to see your work rapidly turn into flying hardware.

Responsibilities

• Translate system requirements into electrical schematics, component selections, and PCB layouts
• Perform thermal, structural, vibration, and worst-case circuit analyses using Finite
• Element Analysis (FEA) and computer simulation tools (such as ANSYS or COMSOL) to ensure reliability in harsh environments.
• Partner with mechanical, manufacturing, and supplier teams to transition designs into high-yield, cost-effective production
• Conduct Root Cause and Corrective Action to investigate failures and develop go-forward plans

Basic Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, Physics, or a related technical field
• Proficiency in schematic capture, PCB layout, circuit simulation, and regulatory or industry standards
• Experience with thermal, structural, dynamics, and/or vibration analysis and tools -OR- Experience with Printed Circuit Boards (PCB) design or assembly

Preferred Skills and Experience

• • Experience within aerospace or related industry or with space electronics
  • Experience taking test data and developing empirical models to inform product reliability at scale
  • Skill and ability to collect, organize, synthesize, and analyze data; summarize findings; develop conclusions and recommendations from appropriate data

    sources

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 [email protected]. 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.