Supplier Quality Engineer

diamondfoundry· Warehouse & Materials
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📍 Zaragoza, SpainFull time

About this role

Diamond Foundry Inc. is solving the thermal limitation at the foundation of today's most exciting tech industries -- AI & cloud compute, electric-car power electronics, and 5G/6G wireless. We have managed to produce the world's first single-crystal diamond wafers and are now on a mission to put a diamond behind every chip. We are the rare unicorn that has grown fast and profitably. We received $515m in funding and are executing a multi-$B expansion plan for one of the greenest forms of tech manufacturing: converting greenhouse gas into diamond wafers using zero-emission energy.

Currently, we are looking for a Supplier Quality Engineer (SQE) who will be responsible for ensuring suppliers consistently deliver components that meet Diamond Foundry's quality, reliability, and engineering requirements. As the primary quality interface with suppliers, the SQE drives supplier development through audits, production and process approvals, quality agreements, corrective actions, and continuous improvement initiatives.
 
The SQE proactively identifies, assesses, and mitigates supplier quality risks, leads the resolution of quality issues, analyzes supplier performance trends, and partners with cross-functional teams to implement preventive actions that reduce defects, enhance supplier quality, and support operational excellence.
 
The ideal candidate will travel domestically and internationally up to 50% of the time.

Responsibilities

  • Supplier Quality Audits – Establish and maintain supplier quality agreements and quality contracts to define clear quality expectations and ensure compliance with company requirements. Conduct supplier quality system audits to verify adherence to these requirements and identify opportunities for improvement. Partner closely with suppliers to drive continuous improvement initiatives, leveraging supplier scorecards performance metrics, and KPIs to enhance overall quality performance and strengthen supplier capabilities. 
  • Production Approval Process – Review, approve, and monitor supplier control plans, production plans, inspection plans, and quality documentation to ensure alignment with company requirements and quality standards. Collaborate with suppliers to validate process readiness, maintain effective quality controls, and support successful production approval and ongoing manufacturing performance. 
  • Quality investigation and SCAR management - Lead investigations of supplier quality issues, nonconformances, customer complaints, and product failures. Issue, track, and manage Supplier Corrective Action Requests (SCARs) to closure.Perform root cause analysis using structured problem-solving methodologies such as 8D, 5 Whys.Verify implementation and effectiveness of corrective and preventive actions.
  • Supplier Quality Management / Single Point of Contact - Communicate supplier quality concerns, corrective actions, and resolution status to internal stakeholders and cross-functional teams.

Requirements

  • Bachelor's degree in Mechanical, Electronics, Electrical, or Industrial Engineering.
  • Minimum of 3 years of experience as a Supplier Quality Engineer (SQE), preferably either: in the semiconductor industry, vacuum process components, instrumentation equipment, or advanced related technologies.
  • Demonstrated understanding of manufacturing processes, including precision machining, welding, surface finishing, and production controls, with experience applying quality management principles to assess supplier capability, process robustness, and product reliability.
  • Proven ability to work independently while effectively managing priorities and meeting deadlines, with a collaborative approach to working across multidisciplinary teams.
  • Fluent in both English and Spanish, with strong verbal and written communication skills that enable effective collaboration in fast-paced, international engineering environments.
  • Willingness and ability to travel domestically and internationally up to 50% of the time.
Diamond Foundry believes in supporting our employees from the workplace to their personal and home life. We provide eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. Perks include employee discounts to VRAI. All benefits offered are available starting your first day. 

Diamond Foundry is an Equal Opportunity Employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, veteran status, or any other protected factor under federal, state or local law.

Frequently Asked Questions

Is the salary disclosed for the Supplier Quality Engineer position at diamondfoundry?
The salary for this Supplier Quality Engineer role at diamondfoundry is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Supplier Quality Engineer position at diamondfoundry located?
This Supplier Quality Engineer role at diamondfoundry is based in Zaragoza, Spain. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Supplier Quality Engineer role at diamondfoundry full-time or part-time?
This is listed as a Full time position. It is posted as a Supplier Quality Engineer role in the Warehouse & Materials department at diamondfoundry.
Which team or department does the Supplier Quality Engineer at diamondfoundry belong to?
This Supplier Quality Engineer position is part of the Warehouse & Materials department at diamondfoundry. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Supplier Quality Engineer position at diamondfoundry?
Click the "Apply Now" button on this page. You will be redirected to diamondfoundry's official application portal hosted on lever where you can submit your application directly.
When was the Supplier Quality Engineer job at diamondfoundry posted?
This Supplier Quality Engineer position at diamondfoundry was posted on Jul 27, 2026. Apply as soon as possible — early applications are often reviewed first.
Supplier Quality Engineer
diamondfoundry
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