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Job Description

Overview

Attalon is a leading technology partner to the global aerospace and defense industry, specializing in the physics of light and heat. They are seeking a highly motivated Mechanical Engineer II to join their R&D and Manufacturing team in Monrovia, focusing on designing and developing advanced automation tooling and robotic fixtures.

Responsibilities

  • Design, prototype, and implement precision mechanical fixtures and tooling for robotic arms and automated manufacturing systems.
  • Interface directly with optics and sensitive laser light paths; design precise opto-mechanical mounts, positioning stages, and stable alignments.
  • Wire, test, and integrate electrical sensors, actuators, and basic input/output (I/O) control lines into automated fixtures and process tooling.
  • Contribute directly to the mechanical design of wavelength-stabilized lasers and spectroscopy systems, including hands-on build, assembly, alignment, and testing.
  • Develop, configure, and optimize mechanical components and workflows for laser dicing systems and automated pick-and-place micro-assembly machinery.
  • Develop complete 3D models, fabrication drawings, and assemblies in SolidWorks, with structured management of BOMs and PDM systems.
  • Collaborate directly with local and external machine shops, fabrication vendors, and component suppliers to source and inspect parts.
  • Actively participate in new product development programs, communicating progress and technical challenges to management and cross-functional teams.

Requirements

  • B.S. in Mechanical Engineering, Mechatronics, Robotics, or a closely related engineering discipline.
  • 2+ years of hands-on professional experience in mechanical design and system development.
  • Proven proficiency in 3D product design with SolidWorks.
  • Solid comfort level working with basic electronics, electrical wiring, and physical I/O signals and hardware interfaces.
  • Proven experience with strong diagnostic mindset with physical assembly, alignment, troubleshooting, and testing of complex technical devices or electromechanical hardware.
  • Extremely self-motivated, driven, and resourceful with a demonstrated ability to learn new technologies and systems quickly.
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How this job compares in Monrovia, CA

Pay in context

At roughly $48/hr, this posting sits about 46% above the $33/hr median for welding jobs across California — toward the top of a $27–$41/hr middle band drawn from 483 postings with published pay. Put another way, it pays more than about 83% 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 Monrovia, CA

This is the only active welding job we're currently tracking in Monrovia, CA, which makes it worth moving on quickly — there is no local competing offer to weigh it against. Across California as a whole we're tracking 627 other active welding openings from 305 employers. Browse welding jobs across California.

The most active employers in California at the moment, by number of open welding reqs, are SpaceX (31), 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 $51/hr, Santa Ana at $48/hr, and Long Beach at $40/hr. If you can relocate or commute, that spread is worth factoring in.

Similar openings near Monrovia, CA

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 II figures were last recalculated when this page was built.