Principal Mechanical Engineer (Starship)
- Level
- Principal
Not stated in the posting: salary, work type, visa.
Open. First seen 23 May 2026.
About the role
SpaceX's standard text
SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.
PRINCIPAL MECHANICAL ENGINEER (STARSHIP)
Our elite Starbase team is working on our planet's toughest and most audacious project: making humanity multi-planetary. The mechanical engineer is responsible for designing and building flight hardware such as propellant tanks, integration interfaces, primary structures, and structural subassemblies. You will be empowered to make real-time decisions, solve complex problems on the fly, and own end-to-end processes.
The role will require the readiness to develop subject matter expertise in design for manufacturability, specifically those related to sheet metal and subassembly design and fabrication. If you are ready to be a hardware owner, eager to get out from behind a desk, and be hands-on working alongside a world-class production team, this may be the right role for you.
RESPONSIBILITIES:
- Develop design concepts from a clean sheet and size vehicle structures based on flight loads
- Collaborate with peers from different vehicle systems to develop designs that balance mass, cost, and capability
- Create detailed designs to implement structural concepts and generate CAD models in NX for components, assemblies, and vehicle integration
- Build finite element models to assess your designs in detail and analyze your structures to prove they meet the needs of the vehicle
- Apply first-order hand calculations and empirical formulas to assess and iterate on your designs rapidly
- Validate your designs by building development articles to test individual joints and design elements for strength
- Perform structural testing on subassemblies and full sections of the airframe
- Partner with build engineers and technicians to improve your designs
- Support the assembly of your hardware in the factory, witness your designs being brought to life daily, and watch them take flight and make history
BASIC QUALIFICATIONS:
- Bachelor's degree in an engineering discipline
- 7+ years of experience with mechanical design and analysis
PREFERRED SKILLS AND EXPERIENCE:
- Experience designing, analyzing, building, and testing high performance, mechanical systems
- Experience working within interdisciplinary teams to develop solutions to challenging and complex problems
- Experience with FEA or multiphysics simulation package (e.g. NASTRAN, ABAQUS, ANSYS)
- Experience designing and executing qualification testing
- Strong understanding of mechanical first principles and structural analysis methodologies
- Proficiency in selecting materials and manufacturing methods for mechanical components
- Analytical/scientific programming experience (i.e. Python, Matlab, Excel)
- Self-motivated with strong organizational, written, and oral communication skills
ADDITIONAL REQUIREMENTS:
- Ability to work extended hours and weekends as necessary
- Stand: Up to 3 hours per day
- Sit: Up to 6 hours per day
- Push/Pull: Up to 50lbs. (unassisted) Up to 15 minutes per day
- Overhead reach: Up to 3 hours per day
- Walk: Up to 3 hours per day
- Lift/Carry: Up to 25lbs. (unassisted) Up to 15 minutes per day
- Climb (ladder/stairs): Up to 1 hour per day
- Kneel/Crouch: N/A
- Upper body twist: N/A
- Ability to work in temperatures over 80 degrees: up to 30 minutes per day
- Candidate must be capable of safely working at heights (up to 500ft), in confined spaces, using an air purifying respirator, and performing the physical requirements of the job listed in the job description
- Candidate may be required to complete a pre-employment questionnaire and/or physical to confirm these capabilities, which may include a medical history review
ITAR REQUIREMENTS:
- To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
SpaceX's standard text
SpaceX is an Equal Opportunity Employer; employment with SpaceX is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.
Applicants wishing to view a copy of SpaceX’s Affirmative Action Plan for veterans and individuals with disabilities, or applicants requiring reasonable accommodation to the application/interview process should reach out to EEOCompliance@spacex.com.
What this role asks for
Standard for software engineering roles
Python
Common in software engineering postings at any company.
81% of this description is written for the role. The rest is SpaceX's standard text, folded away below.
Read against SpaceX's other open postings on this site.
The team: Ship Engineering HIRES STEADILY
This role is one of 3 open in Ship Engineering. 1 was posted in the last 30 days and the oldest in May: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
ANSYS (3 of 3), Excel (3 of 3), FEA (3 of 3), MATLAB (3 of 3), Python (3 of 3)
OTHER ROLES ON THIS TEAM
- Principal Mechanical Engineer (Starship) posted Sep 23
- Principal Mechanical Engineer (Starship) posted May 14
From the team and dates on SpaceX's own job board.
Posting history
Reposted once since 7 March 2026: a posting for this role in Starbase, TX was taken down and the role was posted again.
- 10 October 2026 – open
- 23 May 2026 – open (this posting)
- 7 March 2026 – closed 19 August 2026
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