Job Description

Overview

Valar Atomics is on a mission to make clean, high-temperature nuclear power scalable, aiming to unlock abundant energy for various industries. The Mechanisms Technician role involves assembling safety-critical hardware for nuclear reactors, ensuring precision and quality in a hands-on environment.

Responsibilities

  • Assemble safety-critical mechanical systems for a nuclear reactor from CAD models, engineering drawings, and parts lists.
  • Build systems correctly the first time, understanding that installed hardware can't be serviced or repaired.
  • Work with engineers to determine assembly sequences, tooling, and methods for first-of-a-kind hardware.
  • Help write and refine assembly procedures, work instructions, and system manuals based on hands-on builds.
  • Recommend design changes that make parts easier to manufacture, assemble, and inspect.
  • Document every build in full, including torque values, measurements, fits, clearances, materials, and the standards followed.
  • Inspect parts and assemblies for conformance to drawings and specifications.
  • Follow strict quality, cleanliness, and foreign material exclusion (FME) practices.
  • Troubleshoot assembly problems and help engineering resolve nonconformances.

Requirements

  • Ability to read and interpret engineering drawings, CAD models, and GD&T.
  • Proficiency with precision measuring tools, including micrometers, calipers, bore gauges, dial indicators, and torque tools.
  • Working knowledge of fits, tolerances, fasteners, bearings, seals, and shaft alignment.
  • Clear, accurate written documentation skills.
  • Strong attention to detail and a commitment to quality over speed.
  • Ability to lift heavy components, work in a shop environment, and use rigging and lifting equipment safely.
  • Experience in nuclear, aerospace, naval, defense, or other high-reliability industries is preferred.
  • Familiarity with quality programs such as NQA-1, AS9100, or ISO 9001 is preferred.
  • Experience with ASME pressure vessel or piping codes (Section III or VIII, B31.1, B31.3) is preferred.
  • Experience building prototypes or first-article assemblies is preferred.
  • Experience writing or contributing to assembly procedures or technical manuals is preferred.
  • Rigging, crane, or forklift certification is preferred.
  • Experience with laser alignment, leak testing, or pressure testing is preferred.
  • Associate degree or certificate in mechanical technology, or equivalent military or trade training is preferred.
  • An engineering mindset, with the ability to understand why a system is designed the way it is and suggest practical improvements.

Benefits

  • Competitive base salary
  • Equity ownership in a rapidly growing advanced energy company
  • Comprehensive medical benefits
  • Free daily lunch and dinner provided onsite
  • Generous PPE stipend
  • High-impact startup environment with significant ownership and autonomy
  • Opportunities for rapid career growth and internal advancement
  • Direct collaboration with experienced operators, engineers, and industry leaders
  • The opportunity to help build and scale transformative energy technology from the ground up

Benefits

Competitive base salary
Equity ownership in a rapidly growing advanced energy company
Comprehensive medical benefits
Free daily lunch and dinner provided onsite
Generous PPE stipend
High-impact startup environment with significant ownership and autonomy
Opportunities for rapid career growth and internal advancement
Direct collaboration with experienced operators, engineers, and industry leaders
The opportunity to help build and scale transformative energy technology from the ground up

How this job compares in Torrance, CA

Pay in context

At roughly $45/hr, this posting lands within a few percent of the $47/hr median for welding jobs in Torrance, CA, whose middle half runs $41–$60/hr across 25 postings with published pay. Put another way, it pays more than about 44% of the comparable postings we have wage data for. In other words it is a market-rate offer, so benefits, overtime, and shift schedule are where the real difference between this and the next posting on the list shows up.

The local market in Torrance, CA

We're tracking 52 other active welding openings in Torrance, CA right now, from 17 different employers. 16 of them were added in the last week. Across California as a whole we're tracking 594 other active welding openings from 272 employers. A metro this active generally means you have real leverage — employers here are competing for the same welders. Browse every welding job in Torrance, or widen the search to California.

Valar Atomics currently has 15 other openings 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), Welding Shop in Los Angeles, CA (17), and Honeywell Aerospace (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 Pasadena at $51/hr, Santa Ana at $48/hr, and El Segundo at $48/hr. If you can relocate or commute, that spread is worth factoring in.

Certifications this posting mentions

  • ASME Section IX — the ASME Boiler and Pressure Vessel Code qualification. It covers welding on pressure-retaining equipment — boilers, vessels, and process piping — where a failed weld is a safety incident rather than a rework ticket.

Read straight from this posting's text. Confirm the exact qualification the employer wants before you test — requirements vary by shop even under the same code.

Similar openings near Torrance, CA

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