Full-Time
Principal Controls Engineer
Automation and Advanced Factory Systems
Posted on 10/31/2025
Diamond Foundry
201-500 employees
Manufactures diamond wafers for thermal management
Compensation Overview
$140k - $170k/yr
California, USA
In Person
 Electrical Engineering (3) |
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- Bachelor’s degree in Electrical, Controls, Mechanical, or Mechatronic Engineering or similar engineering discipline with 10+ years of hands-on engineering work, including designing, testing, deploying, and troubleshooting control systems in an industrial manufacturing environment; working with electrical systems from three-phase AC power to low-voltage DC board-level signals.
- Hands-on experience designing and building Control Boxes using hand and power tools, and 3D/2D CAD (SolidWorks, AutoCAD, DraftSight). Able to make, read, and edit control schematics and P&ID drawings.
- PLC and controls ladder logic and/or structured text programming experience in one or all of these systems: Automation Direct, Allen Bradley, Siemens, CodeSys. Experience in robotic programming, preferably with Epson, Universal, and Kuka. Also, PC based controls experience, such as Python, Arduino, and ACS.
- Vision system programming experience using Keyance, Cognex, or other vision system tools.
- Understanding of industrial control equipment regulations including NFPA 79, UL 508, and related standards.
- Design electrical control panels and document assemblies and systems, including component selection, mechanical layout, cabling, and packaging.
- Write control system code for various PLCs, Controllers, Vision systems, Motor controls, and PC’s to enable start-up, operation, and troubleshooting of new and existing equipment.
- Troubleshoot industrial control/electrical systems, including power supplies, controllers, sensors, PLCs, and other devices.
- Working on multidisciplinary teams to solve complicated problems, design and plan upgrades, and retrofits to improve tool reliability and process capabilities
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
Simplify's Take
What believers are saying
- Spain's €753M investment scales Trujillo plant to 4M carats annually by 2029.
- Acquired Audiatec to lead monocrystalline diamond wafer production in Europe.
- VRAI brand partners with Etika Jewels and Fraser Hart for luxury lab diamonds.
What critics are saying
- Silicon carbide from Wolfspeed undercuts diamond wafers in EV markets now.
- Zaragoza facility delays past 2027 cede share to TSMC suppliers.
- De Beers marketing erodes VRAI jewelry revenue in 12 months.
What makes Diamond Foundry unique
- Pioneered first single-crystal diamond wafer using proprietary CVD technology.
- Produces zero-emission diamonds from methane with 10X less energy than mining.
- Delivers semiconductor-grade tech stack for thermal management in AI and EVs.
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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
6 month growth
↑ 0%1 year growth
↑ 0%2 year growth
↑ 0%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.
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.
A recognised independent monitoring of policies that affect world commerce trusted by many.
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
"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