Senior Principal Supplier Quality Engineer

Join our fast-paced and passionate team as a Senior Principal Supplier Quality Engineer. As Monarch Quantum scales, you will be instrumental in building our quality architecture and supplier ecosystem from the ground up. Reporting directly to the Director of Supply Chain, you will serve as the premier technical authority on supplier quality across high-precision commodities critical to our laser light engines and quantum computer system integration.  

This is a dynamic, high-impact leadership role for a self-starter who thrives in a fluid startup environment. You will establish rigorous quality systems, lead cross-functional risk mitigation (DFx), and drive vendor excellence across optics, advanced electronics, fiber optics, and exotic metal fabrications.  

Key Responsibilities: 

• Supplier Quality Architecture & Strategy: Lead the definition and execution of Monarch’s global Supplier Quality Engineering strategy and Quality Management System (QMS) framework from early development through production scale-up.  

• Technical & Commodity Ownership: Serve as the technical expert for 2 or more critical supplier commodities, including optical components (lenses, mirrors, coatings), printed circuit board assemblies (PWBAs), fiber optic cables, and precision-machined parts utilizing exotic materials (MoCu, Kovar, Molybdenum).  

• NPI & Advanced Quality Planning (APQP): Partner closely with Hardware and Manufacturing Engineering during New Product Introduction (NPI) to lead Design for Manufacturability/Quality (DFx), perform Design/Process Failure Mode and Effects Analysis (D/PFMEA), and establish critical-to-quality (CTQ) specifications.  

• Engineering & Drawing Verification: Interpret complex engineering drawings, technical specifications, optical parameters, and advanced Geometric Dimensioning and Tolerancing (GD&T) data to align technical intent with supplier manufacturing capabilities.  

• Auditing & Supplier Qualification: Design and perform comprehensive onsite process, technical, and system audits for new and existing global suppliers. Direct First Article Inspections (FAI/PPAP) and qualification protocols.  

• Corrective & Preventive Action (CAPA): Drive root-cause analyses using structured problem-solving methodologies (8D, 5-Why, Fishbone) for non-conformances, yield issues, and field escapes, ensuring permanent supplier resolution. 

• Risk & Performance Metrics: Monitor, score, and report supplier quality metrics (SCARs, PPM, yield) to executive leadership. Partner with Supply Chain on dual-sourcing strategy and supplier development initiatives.  

Requirements

Please note: 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).  

Skills & Experience: 

• Education: Bachelor’s degree in Mechanical Engineering, Optical Engineering, Electrical Engineering, Materials Science, or a related technical discipline (Master’s preferred).  

• Experience: Minimum of 12+ years of progressive supplier quality or quality engineering experience in high-tech, precision hardware environments (optics, photonics, semiconductors, aerospace, or advanced systems).  

• Technical Expertise: Deep experience auditing and qualifying vendors for one or more of the following: 

• Precision-machined exotic metals (MoCu, Kovar, Molybdenum) and tight-tolerance CNC/EDM operations. 

• Free-space optics, optical coatings, and fiber optic cable assemblies. 

• Surface-mount technology (SMT) and PWBA assembly standards (IPC-A-610/J-STD). 

• Tooling & Standards: Mastery of GD&T (ASME Y14.5), ISO 9001/AS9100, SPC, FMEA, 8D problem-solving, and Gage R&R studies. 

• Cross-Functional Leadership: Demonstrated ability to lead supplier risk reviews, influence senior technical leadership, and work across engineering, operations, and procurement teams.  

• Travel: Ability to travel up to 25–35% (domestic and international) for vendor audits and on-site technical resolution. 

Startup Mindset: 

• You're creative, flexible, and eager to wear multiple hats - you don't wait for a process to exist; you build it.  

• 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 $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 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.