Propulsion Engineer

About the Role

Craig Technologies is seeking a Propulsion Plumbing Design and Fabrication Engineer to join our team in Houston, TX and Merritt Island, FL. This role is responsible for supporting the design, CAD routing, fabrication, and assembly of propulsion system fluid plumbing and associated deep-space ground and flight hardware.

Key Responsibilities

• Design and route spacecraft propulsion system plumbing, including high-pressure tubing, fittings, isolators, brackets, and fluid interfaces.
• Generate and maintain detailed CAD models, manufacturing drawings, and build documentation to support precision fabrication and flight assembly.
• Design and implement welding fixtures and support the development of clean-room orbital welding procedures, process controls, and non-destructive inspection (NDI) practices.
• Provide dedicated engineering oversight of fabrication, orbital tube welding, manifold assembly, and integration activities for flight propulsion hardware.
• Assist with propulsion system assembly, leak checkout, high-pressure proof testing, and mechanical integration for ground test and flight satellite buses.
• Evaluate fluid lines for proper thermal insulation and routing to prevent freezing or vapor-locking in extreme cislunar thermal environments.
• Support anomaly resolution, material compatibility reviews, and rework activities associated with flight plumbing and fabricated hardware.
• Contribute to general propulsion engineering tasks as required, supporting system builds, hot-fire test setups, and launch operations.

Requirements & Tech Stack

• Strong attention to detail, configuration control, and safety protocols when executing flight or high-pressure test hardware.
• Ability to work effectively in a collaborative, cross-disciplinary engineering environment and manage multiple parallel tasks.
• Clear written and verbal communication skills.
• Ability and willingness to work hands-on in a laboratory, clean room, or machine shop environment in support of flight hardware fabrication.

Qualifications

• Bachelor's Degree in Mechanical Engineering, Aerospace Engineering, or a highly related engineering discipline.
• Junior Engineer: Bachelor's degree with <1 year of relevant experience
• Engineer: Minimum of a Bachelor's degree with >2 years of relevant experience, or Master's degree
• Direct experience in CAD-based mechanical design, fluid routing, and detailing (CREO, SolidWorks, or similar), including formal fabrication drawings.
• Working understanding of high-pressure fluid or spacecraft pressure systems, including tubing, fittings, regulators, and basic propulsion or pressurization concepts.
• Experience with orbital tube welding processes, procedures, or weld inspection techniques (hands-on or oversight).
• Familiarity with aerospace manufacturing workflows, quality travelers, material certifications, or formal build records.