Mechanical Engineer - Build
Location
El Segundo, CA
Wage
$125,000 – $175,000/yr
Employment Type
Full-time
Posted on August 27, 2026
Location
El Segundo, CA
Wage
$125,000 – $175,000/yr
Employment Type
Full-time
Posted on August 27, 2026
The Mechanical Engineer - Build role involves owning the full mechanical build of Poseidon robotic systems, developing new production processes, and ensuring quality and reliability in assembly. This hands-on position requires collaboration with design engineers and technicians to improve production efficiency and reliability in challenging maritime environments.
At roughly $72/hr, this posting sits about 90% above the $38/hr median for welding jobs in El Segundo, CA — toward the top of a $38–$40/hr middle band drawn from 12 postings with published pay. Put another way, it pays more than about 92% 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.
We're tracking 13 other active welding openings in El Segundo, CA right now, from 5 different employers. 12 of them were added in the last week. Across California as a whole we're tracking 596 other active welding openings from 293 employers. A metro this active generally means you have real leverage — employers here are competing for the same welders. Browse every welding job in El Segundo, or widen the search to California.
The most active employers in California at the moment, by number of open welding reqs, are SpaceX (34), Aerotek (16), and Volt (16). 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 Redondo Beach at $65/hr, Long Beach at $49/hr, and Santa Ana at $48/hr. If you can relocate or commute, that spread is worth factoring in.
Pay figures are medians computed from live postings in the Welding Pros index, not from survey data, and they move as employers post. Mechanical Engineer - Build figures were last recalculated when this page was built.