Manufacturing Engineer, Equipment

Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts

This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical decisions, and have immediate, real-world impact

Castelion is seeking a highly motivated Manufacturing Engineer to design, build, operate, and maintain equipment used in the manufacture of ceramic matrix composite (CMC) materials and components. This role is focused on developing practical manufacturing solutions, improving equipment reliability, and supporting production operations through hands‑on engineeri ng.

This is a highly hands‑on position for someone who enjoys building hardware and solving real-world manufacturing problems. The ideal candidate has experience designing, fabricating, assembling, testing, and troubleshooting mechanical systems through internships, manufacturing experience, Formula SAE, Baja SAE, rocketry, robotics, motorsports, machine shop projects, or other highly hands‑on engineering progra ms.

The successful candidate will spend significant time on the production floor working directly with manufacturing equipment, tooling, fixtures, instrumentation, and process systems. Responsibilities range from designing and building new equipment to maintaining existing systems and supporting daily manufacturing operatio ns.

• ties Design, build, assemble, and test manufacturing equipment, tooling, fixtures, and support systems used in CMC product
• ion.
  
  Develop modifications and upgrades to existing production equipment to improve performance, reliability, safety, and through
• put.
  
  Lead equipment development projects from concept through implementation, including requirements definition, design, fabrication, testing, and commission
• ing.
  
  Troubleshoot mechanical, electrical, pneumatic, vacuum, thermal, and process-related equipment issues to identify root cause and implement corrective acti
• ons.
  
  Partner with Facilities and Maintenance teams to support equipment reliability, maintenance planning, repairs, and uptime improveme
• nts.
  
  Support installation, commissioning, qualification, and startup of new equipment and production syst
• ems.
  
  Create engineering drawings, equipment layouts, bills of material, and technical document at
• ion.
  
  Develop manufacturing work instructions, standard operating procedures (SOPs), equipment operating procedures, and nonconformance document at
• ion.
  
  Collect and analyze equipment and production performance data to identify improvement opportunit
• ies.
  
  Work closely with technicians, production personnel, facilities, and engineering teams to rapidly resolve manufacturing iss
• ues.
  
  Drive continuous improvement initiatives focused on equipment capability, process stability, and manufacturing efficie

• tions
  
  Bachelor's degree in Mechanical Engineering, Manufacturing Engineering, Aerospace Engineering, or a related engineering discip
• line.
  3+ years’ experience in a manufacturing role with aerospace production equi

• rience
  
  Formula SAE, Baja SAE, collegiate rocketry, robotics competition, motorsports, machine shop, or equivalent hands-on engineering exper
• inery.
  
  Experience with vacuum systems, thermal processing equipment, furnaces, reactors, or other industrial equi
• pment.
  
  Familiarity with machining, welding, fabrication, and assembly proc
• esses.
  
  Experience supporting manufacturing operations in aerospace, automotive, energy, or other high-performance indus
• tries.
  
  Familiarity with root cause analysis, equipment reliability, and continuous improvement methodol
• ogies.
  
  Demonstrated hands-on engineering experience designing, building, testing, or troubleshooting har
• dware.
  
  Experience with CAD and engineering dra
• wings.
  
  Comfortable using hand tools, power tools, measurement equipment, and basic fabrication equi
• pment.
  
  Strong mechanical aptitude and ability to diagnose and solve equipment pro
• blems.
  
  Ability to work independently in a…