Full-Time

Mechanical Design Engineer

Diamond Foundry

Diamond Foundry

201-500 employees

Manufactures diamond wafers for thermal management

No salary listed

Zaragoza, Spain

In Person

Category
Mechanical Engineering
Required Skills
AutoCAD
SolidWorks

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Requirements
  • Bachelor's or Master's degree in Mechanical / Industrial Engineering or Mechanical Design with 3–5 years of proven experience as a mechanical designer in high-tech industrial environments.
  • Proven proficiency in CAD (SolidWorks, AutoCAD or Inventor), producing fabrication-ready drawing packages.
  • Experience with process or gas systems, skids, installation/commissioning support, and pilot-scale equipment.
  • Ability to work independently, manage assigned tasks within deadlines, and communicate effectively in multidisciplinary teams.
  • Fluent in English and Spanish, with the communication skills needed to work effectively within an international, fast-paced engineering team.
Responsibilities
  • Mechanical Design & Modeling: Developing detailed mechanical designs, advanced 3D models, and 2D manufacturing drawings for gas handling and conversion equipment using SolidWorks. Ensuring design feasibility, analyzing constraints, and guaranteeing seamless integration with existing plant systems.
  • Gas Systems Compliance & Material Selection: Evaluating and selecting optimal materials and fabrication processes tailored for gas service applications. Ensuring all designs strictly comply with European regulations, industry standards, and environmental, health, and safety (HSE) guidelines.
  • Project Collaboration & Innovation: Collaborating closely with senior designers and cross-functional teams (Facilities, Process, Automation) to meet deadlines and optimize resource allocation. Actively participating in design reviews, lessons learned, and proposing continuous improvements.
  • Pilot-Line & Facility Project Support: Supporting pilot-line and facility engineering projects throughout their entire lifecycle, from initial concept and detailed design through procurement support and final as-built documentation phases.
  • Design Documentation & Revision Control: Managing and maintaining comprehensive drawing registers, enforcing strict engineering revision controls, and archiving all design documentation in full compliance with company standards and data management protocols.

Diamond Foundry produces single crystal diamond wafers used to improve heat management in high-tech systems. They develop and manufacture semiconductor-grade diamond wafers and related technologies for B2B customers, including AI, EVs, and wireless communications, to help devices run cooler and more efficiently. The wafers leverage diamond's exceptional thermal conductivity to spread and dissipate heat from powerful chips beyond what traditional materials can handle. They differentiate themselves by offering a sustainable, zero-carbon production process and a complete semiconductor-grade tech stack, targeting Tier 1 automakers and other high-tech firms. Their goal is to lead in both advanced materials and environmental sustainability by providing reliable, high-performance cooling solutions for mega tech applications.

Company Size

201-500

Company Stage

Grant

Total Funding

$1.3B

Headquarters

San Francisco, California

Founded

2012

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Simplify Jobs

Simplify's Take

What believers are saying

  • Diamond wafers target thermal bottlenecks in AI, EVs, and wireless.
  • Trujillo’s Spain expansion scales output toward four million carats annually.
  • Public support and investor visibility strengthen financing and procurement credibility.

What critics are saying

  • Semiconductor adoption depends on defect-free wafers, yields, and larger crystal sizes.
  • Lab-grown diamond jewelry faces price compression from expanding synthetic supply.
  • Subsidy dependence and factory ramp delays can burn capital before revenue inflects.

What makes Diamond Foundry unique

  • Proprietary plasma reactors produce single-crystal diamond wafers at mining scale.
  • VRAI gives direct-to-consumer jewelry exposure alongside semiconductor sales.
  • Zero-emission manufacturing supports a sustainability-led brand across both businesses.

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Benefits

Health Insurance

401(k) Retirement Plan

Life Insurance

Disability Insurance

Unlimited Paid Time Off

Paid Vacation

Employee Discounts

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%
AS
Dec 28th, 2025
Leonardo DiCaprio backs Spanish diamond chip factory in Trujillo sustainability push

Diamond Foundry, a synthetic diamond manufacturer backed by Leonardo DiCaprio, is establishing a facility in Trujillo, Spain, to produce diamond substrates for high-performance chips. The company, operating since March 2023, uses solar-powered technology to replicate natural diamond formation conditions in laboratory settings. DiCaprio is among several investors supporting the project, which aligns with his sustainability investments. The actor stated he is "proud to invest in Diamond Foundry, a company that reduces human and environmental costs by growing sustainable diamonds." Beyond his business investments, DiCaprio founded the Leonardo DiCaprio Foundation in California, which supports climate resilience, wildlife protection and ecosystem restoration globally. The foundation advocates for Rights of Nature legislation at local, state and international levels, including at the United Nations.

Jeweller Magazine
Dec 2nd, 2025
Diamond Foundry gets €753M Spain boost

Spain's government has invested €753 million in Diamond Foundry's lab-created diamond manufacturing plant in Trujillo, Extremadura, as part of a semiconductor support program. The facility, established in 2023, is projected to receive an additional €1.6 billion by 2029. It will produce around 4 million carats annually, primarily for technology applications. The investment is expected to create over 2,100 jobs, including 500 directly at the factory.

Global Trade Alert
Dec 4th, 2024
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PR Newswire
Jun 4th, 2024
Lab Diamonds Now 10X More Energy Efficient Than Mining

Public confused by natural diamond marketing claims to the contrarySAN FRANCISCO, June 4, 2024 /PRNewswire/ -- Diamond Foundry today confirmed that its technological advances have made lab created diamonds ever more environmental: they now require ten times (!) less energy to create than it takes to mine ones already created by Earth.Further, the energy used to create them has zero carbon emissions in Diamond Foundry's production. This compares to the dirtiest Diesel generally used in mining diamond industrially in Africa.Earth takes a lot of pressure over a long time to yield diamond crystal, then mining "just" needs to extract such crystals already formed. So how come forming diamond in a lab from scratch is actually a lot more energy efficient? The reason is that mining is extremely inefficient — a ton of earth has to be moved to yield small quantities of crystals."In truth, it has been since 2017 already that we required less energy per carat than mining – it's just that everyone has kept thinking the opposite because of the misleading marketing by the mining cartel," said Martin Roscheisen, CEO of Diamond Foundry, adding: "Now though, we are at ten times less energy, so it is truly time for everyone to stop saying anything else."Nestled among the apple orchards of America's beautiful Pacific West, Diamond Foundry produces diamonds using zero-emission energy by converting the greenhouse gas methane into diamond using American ingenuity and craftsmanship. Its diamonds are of unquestionable origin – no complicated bureaucracy and "tracing" required.More than half of all diamonds sold in the United States – including engagement rings – are now created in labs rather than mined.Diamond Foundry Inc. is the #1 producer of single-crystal diamond worldwide. For more information see www.DF.comMedia Contact: Lena Nieves, [email protected], 1 (888) 322-4397SOURCE Diamond Foundry

Forbes
Jun 4th, 2023
With Vrai, Diamond Foundry Plans To Make Lab-Grown Diamonds True Luxury

"Diamond Foundry is proving with technology that we can create mining-scale diamond production to . [+] the point that we won’t need mined diamonds anymore,” said Mona Akhavi, Vrai president and CEO. / AFP PHOTO / CHRIS J RATCLIFFE (Photo credit should read CHRIS J RATCLIFFE/AFP via Getty Images)AFP via Getty Images. Couples are increasingly choosing a lab-grown diamond for their all-important diamond engagement ring purchase. The Wall Street Journal reported that more than one-third of U.S. couples chose a lab-grown center stone in 2022, based upon a survey conducted by The Knot among nearly 12,000 engaged couples