Mechanical Engineer 3 - Reliability Engineering

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📍 San Diego, California, United StatesFull time

About this role

Join our fast-paced and passionate team as a Mechanical Engineer 3 - Reliability. 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:

  • Utilize mechanical CAD (SolidWorks) to design mechanical test stations/racks for long-term reliability testing of laser systems and optical components. Procure, assemble, and modify test racks to fit reliability testing needs.
  • Perform reliability-relevant laser system analyses utilizing ANSYS tools including Workbench and Sherlock.
  • Evangelize reliability engineering best practices and system-level thinking for the broader Monarch Quantum development team.
  • Work independently and in a team while overcommunicating with the manager and the teammates. 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 through mentorship, curiosity, communication, exposure and initiative.
  • 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.

Skills:

  • Deep working knowledge of multiple ME topics and strong understanding of standard mechanical engineering degree curriculum.
  • Deep understanding of material properties and failure mechanisms.
  • Demonstrated successful execution of engineering tasks including use of mechanical CAD (SolidWorks preferred) and quantitative analysis/programming tools, instrumentation and measurement, part fabrication and procurement, integration and test, data collection, analysis (ANSYS Workbench for FEA) and documentation. Experience with ANSYS Sherlock and Reliasoft products is a plus.
  • Hands-on experience with fabrication methods: CNC milling, CNC turning, sheet metal, injection molding, laser cutting, water jet cutting, and 3D printing (metal and plastic).
  • Solid understanding of structural theory: static, modal, random vibration, shock, etc.
  • Solid understanding of fluids and heat transfer theory: conduction, convection and radiation.
  • Deep understanding of designing for photonic assembling methods: Die bonding, vacuum reflow soldering, wire-bonding, adhesives, etc.
  • System-level understanding of how mechanical engineering concepts translate to system reliability risks.

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.

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.

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Frequently Asked Questions

Is the salary disclosed for the Mechanical Engineer 3 - Reliability Engineering position at 4T3NPou4Wb8Dju8UV53YqX?
The salary for this Mechanical Engineer 3 - Reliability Engineering role at 4T3NPou4Wb8Dju8UV53YqX is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Mechanical Engineer 3 - Reliability Engineering position at 4T3NPou4Wb8Dju8UV53YqX located?
This Mechanical Engineer 3 - Reliability Engineering role at 4T3NPou4Wb8Dju8UV53YqX is based in San Diego, California, United States. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Mechanical Engineer 3 - Reliability Engineering role at 4T3NPou4Wb8Dju8UV53YqX full-time or part-time?
This is listed as a Full time position. It is posted as a Mechanical Engineer 3 - Reliability Engineering role in the Engineering department at 4T3NPou4Wb8Dju8UV53YqX.
Which team or department does the Mechanical Engineer 3 - Reliability Engineering at 4T3NPou4Wb8Dju8UV53YqX belong to?
This Mechanical Engineer 3 - Reliability Engineering position is part of the Engineering department at 4T3NPou4Wb8Dju8UV53YqX. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Mechanical Engineer 3 - Reliability Engineering position at 4T3NPou4Wb8Dju8UV53YqX?
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When was the Mechanical Engineer 3 - Reliability Engineering job at 4T3NPou4Wb8Dju8UV53YqX posted?
This Mechanical Engineer 3 - Reliability Engineering position at 4T3NPou4Wb8Dju8UV53YqX was posted on May 1, 2026. Apply as soon as possible — early applications are often reviewed first.
Mechanical Engineer 3 - Reliability Engineering
4T3NPou4Wb8Dju8UV53YqX
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