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Monarch Quantum

Senior Mechanical Engineer - Optical Alignment Machines

San Diego
Salary
$125,000 - $175,000
Level
Senior

Not stated in the posting: work type, visa.

Open. First seen 7 October 2026.

About the role

Join our fast-paced and passionate team as a Senior Mechanical Engineer of Optical Alignment Machines. As we scale, you will be instrumental in building our foundation from the ground up. This is a dynamic, hands-on role for a self-starter who thrives in a fluid startup environment. You'll have the opportunity to work on cutting edge technologies, work closely with leadership, and develop and implement engineering practices that support our mission and growth. Your key responsibilities are as follows:

  • Work independently and in a team while over communicating with the manager, project engineer and the teammates. Will mentor junior engineers.
  • Execute complex engineering tasks involving planning, preparation, data/information collection and analysis and decision-making in a process involving peer reviews and documentation of the results.
  • Use tenacity, patience, self-discipline and passion for excellence to assure accuracy of execution schedule, data quality/integrity, conformance to company best practices, clarity in communication and documentation.
  • Use every opportunity to grow competency thru mentorship, curiosity, communication, exposure and initiative.
Monarch Quantum's standard text

Requirements

  • This position requires access to export-controlled information. Employment is contingent upon the applicant being a U.S. person as defined by 8 U.S.C. § 1324b(a)(3).

Experience:

  • A bachelor’s degree in mechanical engineering, Physics, or a related field.
  • Minimum of 5 years of relevant experience, ideally within a startup or technology company.
  • Experience with precision automation designs and/or robotics is a plus.

Skills:

  • Deep working knowledge of multiple ME topics and strong understanding of standard mechanical engineering degree curriculum.
  • Deep understanding of material properties, mechanisms, fabrication methods: CNC milling, CNC turning, sheet metal, injection molding, laser cutting, water jet cutting, and 3D printing (metal and plastic).
  • Creative design engineer who is accustomed to working with large complex assemblies.
  • Ability to process requirements and convert it into simple solutions.
  • Experience with motor selection is a plus.
  • Good understanding of precision linear stages and linear rails.
  • Deep understanding of structural theory: static, modal, random vibration, shock, etc.
  • Deep understanding of fluids and heat transfer theory: conduction, convection and radiation.
  • Demonstrated successful execution of engineering tasks including use of mechanical CAD (SolidWorks preferred) and quantitative analysis/programming tools (Python), instrumentation and measurement, part fabrication or procurement, integration and test, data collection, analysis (ANSYS Workbench) and documentation.
Monarch Quantum's standard text

Startup Mindset:

  • You're creative, flexible, and eager to wear multiple hats.
  • You're passionate about building systems from the ground up and comfortable with ambiguity and change.

Benefits

The expected annual salary range for this position is $125,000-$175,000.

As a full-time employee, you will be eligible for Monarch’s comprehensive benefits package, which includes:

  • Medical, Dental, and Vision insurance
  • Fidelity 401(k) plan with 4% employer matching
  • 20 paid time off (PTO) days per year
  • 13 paid company holidays
  • 9/80 work schedule (every other Friday off)

Monarch Quantum is proud to be an equal opportunity employer and does not discriminate on the basis of race, color, citizenship status, national origin, ancestry, sex, sexual orientation, age, religion, creed, physical or mental disability, medical condition, marital status, veteran status or any other characteristics protected under applicable federal, state and local laws.

#LI-JM1

What this role asks for

Particular to this role

ANSYS · SolidWorks

Rare in Monarch Quantum's other 57 open postings.

Standard for software engineering roles

Python

Common in software engineering postings at any company.

90% of this description is written for the role. The rest is Monarch Quantum's standard text, folded away below.

Read against Monarch Quantum's other open postings on this site.

The team: Engineering HIRES STEADILY

This role is one of 62 open in Engineering. 30 were posted in the last 30 days and the oldest in June: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Embedded Systems (20 of 62), Python (16 of 62), ANSYS (9 of 62), C++ (9 of 62), SolidWorks (7 of 62), Agile (6 of 62), Git (6 of 62)

OTHER ROLES ON THIS TEAM

From the team and dates on Monarch Quantum's own job board.

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