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SpaceX

Rack Design Engineer (Starmind)

SpaceX is hiring a Rack Design Engineer (Starmind). Level rates it ; you can apply on Level.

Level's read on this job

  • Level rates this role Builds AI ●●●●: the job is building AI systems.
  • The posting mentions Cad, Ansys and Cfd among its tools and skills.
  • Level classes it as a mid-level role.
  • SpaceX has 2,700+ other open roles on Level.
  • This posting went up in the last few days.

AI in this role

Rack Design Engineer for Starmind Compute at SpaceX, owning mechanical and thermal integration of high-density AI compute clusters.

cadansyscfd
mechanical-engineeringthermal-designcoolingcomputational-fluid-dynamicsdfm

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.

RACK DESIGN ENGINEER (STARMIND)

The Starmind Compute team designs training and inference compute clusters from first principles, pushing thermal, electrical, and optical systems to the limit of physics. We operate as a highly cross disciplinary team comprised of mechanical, electrical, optical, and software engineers, all working to maximize the efficiency, reliability, and deployment speed of terrestrial computing to serve rapidly scaling demand.

This team owns compute architecture, datacenter network design, rack builds, connectivity, in-house design of our own computers, and the manufacturing line that builds that compute. As a Rack Design Engineer, you will own the rack as a product: structure, power, cooling, service paths, and the physical integration of servers, switches, optics, and liquid cooling from first sketch through production rate.

RESPONSIBILITIES:

  • Own mechanical, structural, and integration design of high-density AI compute racks and associated chassis, frames, busbars, manifolds, and cable/fiber raceways
  • Integrate compute, networking, power distribution, and liquid cooling into a buildable, serviceable, high-yield rack architecture
  • Design for the in-house manufacturing line: DFM/DFA, fixtures, work instructions, incoming inspection, first article, and production ramp
  • Close thermal, structural, and power constraints with cooling, electrical, optical, and network counterparts at the cluster level (CDUs, cold plates, quick disconnects, PDUs/busbars, high-current distribution, tray and bend-radius limits)
  • Drive vendor and in-house parts from concept to qualified production, including sheet metal, extrusions, busbar, manifolds, cable management, and rack accessories
  • Stand on the floor during prototype and production builds: debug fit, leak, cable dress, airflow/liquid balance, and service time; fold issues into the next revision the same day
  • Produce and maintain CAD, BOMs, drawings, and build documentation that a line can run at volume
  • Support cluster deployment of the racks you design, including first-site bring-up and feedback into the next hardware generation
  • Partner with network, optical, electrical, and firmware teams to deploy custom compute for inference and training across SpaceX programs

BASIC QUALIFICATIONS:

  • Bachelor’s degree in mechanical engineering, aerospace engineering, or another engineering discipline
  • 2+ years of professional experience designing electromechanical hardware that was built and shipped (internship and project experience counts toward this if the hardware was physically produced)

PREFERRED SKILLS AND EXPERIENCE:

  • Ownership of rack, chassis, or similarly dense electromechanical products through prototype and production
  • Experience or background in ethernet switching, networking, interconnects, high power distribution, and other relevant data center technologies 
  • CAD fluency in SolidWorks, Creo, or NX, with released drawings a shop and a factory can build from
  • AI / HPC / GPU rack design: NVIDIA HGX/GB-class, custom OCP, or equivalent high-power liquid-cooled compute
  • Liquid cooling design: cold plates, manifolds, CDUs, quick disconnects, leak detection, and coolant compatibility
  • High-power rack electrical integration: busbar, PDU, 48V, high-current 3-phase, grounding, and service safety
  • Cable and fiber physical design inside the rack (MPO/OSFP dress, bend radius, service loops) in partnership with optical and network engineers
  • Experience taking a rack from NPI onto an in-house manufacturing line (fixtures, cycle time, poka-yoke, rework loops)
  • Thermal and structural analysis (CFD, FEA) used to make a design decision
  • Time at a high-velocity hardware organization: AI/GPU cloud, custom compute, or an OEM/ODM team that owned the product end to end
  • Comfort in a factory or datacenter build environment, including first articles, yield, and hardware debug on the floor

ADDITIONAL REQUIREMENTS:

  • Must be willing to work extended hours and weekends as needed to support design releases, line bring-up, and cluster deployments
  • Must be willing to travel up to 30% to manufacturing and datacenter sites
  • Ability to lift up to 25 lbs. unassisted and work around active factory and datacenter hardware

 

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 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. 

How we rate this

Rack Design Engineer (Starmind) at SpaceX rates 85 out of 100 for how much of the daily work is AI. That makes it Builds AI (AI Level 4 of 4). The level is about AI in the job, not seniority.

Classification

Builds AI. The job is building AI systems.

  1. ●●●● Builds AI80 to 100
  2. ●●●○ Works on AI60 to 79
  3. ●●○○ Uses AI40 to 59
  4. ●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Open the description and count.

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

Mechanical EngineeringThermal DesignCoolingComputational Fluid DynamicsDfmCadAnsysCfd

Questions you could be asked

  1. Tell me about a project where mechanical engineering was part of your work. What did you do?
  2. Tell me about a project where thermal design was part of your work. What did you do?
  3. Tell me about a project where cooling was part of your work. What did you do?
  4. Tell me about a project where computational fluid dynamics was part of your work. What did you do?
  5. Tell me about a project where dfm was part of your work. What did you do?

Adapt your resume

  • List these exact terms on your resume: Mechanical Engineering, Thermal Design, Cooling, Computational Fluid Dynamics, and Dfm. An applicant tracking system matches the wording, not the idea.
  • Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
  • Lead with what you built, trained or shipped. This role is judged on the AI system itself, not the tools around it.

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