Senior Thermal & TPS Integration 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 were building a world-class team to turn bold ideas into real capability.

This is a rare opportunity to join at an early stage where youll 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.

Senior Thermal & TPS Integration Engineer

We are seeking multiple Senior Thermal & TPS Integration Engineers to design and deliver thermal protection solutions for Castelions long-range hypersonic strike vehicles. These roles are critical to ensuring vehicle survivability and performance in extreme aerothermal environments. You will work hands-on with multidisciplinary engineering teams to design analyze build and validate TPS across the vehicle including heat shields control surface protection and internal thermal insulation systems in a fast-paced hardware-driven environment.

Responsibilities

• Design and develop TPS across the vehicle including heat shields acreage TPS and leading-edge protection systems
• Design TPS for control surfaces including elevons seals and moving interface solutions that maintain performance under thermal and mechanical loads
• Develop internal thermal protection solutions including insulators blankets and standoff systems to protect avionics and structures
• Lead the architecture and integration of TPS with primary structure mechanisms and subsystems including attachment methods gaps and strain isolation
• Perform thermal and thermal-structural analyses to ensure performance under extreme aerothermal heating and transient environments
• Work closely with structures materials aerothermal GNC and manufacturing teams to ensure seamless system integration
• Develop and evaluate materials and configurations including ceramics carbon-carbon ablatives and insulating materials
• Conduct tolerance analysis and assess thermal expansion deformation and interface behavior
• Support prototyping assembly and hardware bring-up including troubleshooting and root cause analysis of TPS performance issues
• Define and execute qualification and environmental test plans including arc-jet furnace and flight testing
• Optimize designs for mass thermal performance durability and manufacturability
• Mentor junior engineers and contribute to best practices in TPS design and integration
• Partner closely with program leadership to make technical trades aligned with mission success

Basic Qualifications

• Bachelors Masters or PhD in Aerospace Engineering Mechanical Engineering Materials Science or related field
• 5 years of experience in thermal protection system design analysis and validation for aerospace or high-temperature applications
• Strong background in aerothermal environments heat transfer and high-temperature materials
• Experience designing TPS for flight vehicles including heat shields control surfaces or internal insulation systems
• Familiarity with TPS materials such as ceramics carbon-carbon ablatives and insulating blankets
• Experience with seals gaps and interface design in high-temperature moving or constrained systems
• Proficiency in thermal and structural analysis tools (e.g. ANSYS MATLAB or equivalent)
• Experience with high-temperature testing methods (e.g. arc-jet furnace or similar)
• Experience with hardware build test and troubleshooting in a lab or flight hardware environment
• Strong problem-solving mindset thriving in a fast-paced hardware-rich high flight cadence environment

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 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 candidates 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.

Required Experience:

Senior IC