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Job Description

Overview

Fluidstack is focused on building civilization-scale infrastructure for AI, aiming to deliver compute power faster than anyone else. The Structural Engineer for Modular R&D will be responsible for engineering the structural systems of modular products, ensuring they can withstand various challenges from fabrication to transport.

Responsibilities

  • Engineer the structural systems of modular products from concept through released fabrication drawings.
  • Own structural calculations and load paths to ensure modules survive fabrication, shipping, rigging, and stacking.
  • Solve integration problems where structure meets MEP, including penetrations and attachment points.
  • Provide structural support for factory and field, addressing RFIs promptly and engineering fixes into the next revision.
  • Drive prototyping and validation through mockups, fit checks, and first-article reviews.

Requirements

  • Hands-on experience engineering structures for complex physical products, modular construction, or heavy fabrication.
  • Experience taking a steel or sheet metal product from concept through fabrication.
  • Supported production launches of own designs and remained accountable through first articles.
  • Consider transport loads, lifting points, and stacking as primary design constraints.
  • Produce clean drawings that minimize fabricator inquiries and resolve issues effectively.
  • Collaborate across disciplines and iterate quickly without losing configuration control.
  • Bonus: PE license, depth in steel and sheet metal design, knowledge of structural detailing standards, 3D CAD mastery, and strong DFM instincts.
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How this job compares in Los Angeles, CA

Pay in context

At roughly $89/hr, this posting sits about 107% above the $43/hr median for welding jobs in Los Angeles, CA — toward the top of a $34–$58/hr middle band drawn from 62 postings with published pay. Put another way, it pays more than about 95% of the comparable postings we have wage data for. Pay that far above local median usually comes attached to something: a harder cert requirement, travel, night shift, or overtime that isn't really optional. Worth establishing which before you accept.

The local market in Los Angeles, CA

We're tracking 89 other active welding openings in Los Angeles, CA right now, from 60 different employers. 28 of them were added in the last week. Across California as a whole we're tracking 600 other active welding openings from 271 employers. A metro this active generally means you have real leverage — employers here are competing for the same welders. Browse every welding job in Los Angeles, or widen the search to California.

Fluidstack currently has 1 other opening live in California, which is usually a sign of either steady growth or steady turnover — worth asking which in the interview.

The most active employers in California at the moment, by number of open welding reqs, are SpaceX (37), Vast (18), and Relativity Space (17). Volume like that usually means either a genuine expansion or a staffing agency working several client sites — worth knowing which before you apply.

Within California, the best-paying metros we track by median hourly rate are Gardena at $73/hr, Redondo Beach at $72/hr, and Pasadena at $61/hr. If you can relocate or commute, that spread is worth factoring in.

Similar openings near Los Angeles, CA

Pay figures are medians computed from live postings in the Welding Pros index, not from survey data, and they move as employers post. Structural Engineer, Modular R&D figures were last recalculated when this page was built.