# Principal Reliability Engineer

> Monarch Quantum · San Diego, United States · Full-time · Posted 2026-10-19

**Salary:** USD 175,000–225,000

**Workplace:** on_site

**Department:** Engineering

## Description

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

-   Own end-to-end Design for Reliability (DfR) planning and execution for Monarch Quantum’s Quantum Light Engine (QLE) hardware. 

-   Collaborate directly with Systems Engineering team to identify system design inclusions that align with Monarch Quantum’s reliability, availability, and maintainability goals. 

-   Lead the risk identification failure modes and effects analysis (FMEA) process spanning hardware, firmware, and software. 

-   Create high level goals for photonics module reliability testing and execution strategy, including Highly Accelerated Life Testing (HALT) and Reliability Demonstration Testing (RDT). 

-   Lead system architecture reliability trade studies to influence repairability, prognostic data acquisition, and system redundancy decision-making. 

-   Develop Reliability Characterization and Reliability Growth campaign for photonics components which includes analysis and test activities. 

-   Collaborate closely with Supplier Quality Engineering team to develop and execute comprehensive supplier reliability strategy.

## 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 an engineering field. Master's or PhD preferred. 

-   Minimum of 8+ years of relevant experience. 

**Skills:** 

-   Proven record of successfully leading hardware reliability engineering projects and initiatives. 

-   Understanding of reliability, availability, and maintainability for complex hardware systems. 
-   Ability to execute projects independently and in partnership with internal teams and third party vendors. e.

## Benefits

The expected annual salary range for this position is $175,000-$225,000.

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

## Apply

[Apply at Monarch Quantum](https://apply.workable.com/monarch-quantum/j/7FDB83B354/apply)

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