R&D Test Engineer, Thermal/Mechanical/Reliability

Diamond Foundry; San Francisco (CA); On-site; USD 125,000 - 155,000; Full time

Benefits offered by this job

Health insurance

Flexible spending accounts

Retirement savings plans

Employee discounts

Job summary

Diamond Foundry is seeking an on-site R&D Test Engineer to join our AI Chips team in San Francisco, California. This role involves executing thermal testing, coordinating reliability testing, and developing custom test hardware for customer prototyping of single-crystal diamond applications.

The ideal candidate will possess strong technical problem-solving skills and a hands-on approach. The position comes with a competitive salary range of $125,000 - $155,000 annually, along with additional benefits including health insurance and opportunity for company shares.

Qualifications

• 2+ years of experience in mechanical/thermal engineering, test engineering, or product development.
• Experience with laboratory instrumentation and data acquisition systems.
• Proficiency with CAD software, familiar with FEA and CFD tools.

Responsibilities

• Support customer prototyping projects through design and development.
• Coordinate accelerated lifetime reliability testing and environmental stress testing.
• Design, build, operate, and troubleshoot thermal characterization test platforms.

Skills

Thermal testing

Mechanical engineering

Problem-solving

Collaboration

Communication skills

Education

BS or MS in Mechanical Engineering

Tools

SolidWorks

MATLAB

Python

Job description

We are seeking an on‑site R&D Test Engineer to join our AI Chips team. This role will work closely with the thermal/mechanical/reliability lead to execute thermal testing, coordinate reliability testing, design and develop custom test hardware and fixtures for customer prototyping of single‑crystal diamond applications on AI customer chips, and generate engineering insights that guide customer engagements and product development.

The ideal candidate is a hands‑on thermal or mechanical engineer with strong technical problem‑solving skills, a collaborative mindset, and the ability to support fast‑paced customer and internal development programs. This position will be located out of our San Jose office.

Responsibilities

• Support customer prototyping projects through design and development of mechanical fixtures and experimental apparatus using CAD software, and coordinate fabrication with internal and external machine shops.
• Coordinate accelerated lifetime reliability testing and environmental stress testing per industry standards to validate long‑term performance and durability of SCD‑on‑silicon attachment methods, package integrity.
• Design, build, operate, and troubleshoot thermal characterization test platforms to evaluate SCD thermal solutions on thermal test vehicles (TTVs) and customer hardware.
• Develop assembly processes for prototype hardware, including thermal interfaces, mounted cooling solutions, and instrumentation integration as needed.
• Manage project schedules, technical risks, cross‑functional communication, customer updates and technical reports.

Requirements

• Degree & Experience: BS or MS in Mechanical Engineering or a related discipline, with 2+ years of experience in mechanical/thermal engineering, test engineering, or product development.
• Thermal & Reliability Testing: Experience with laboratory instrumentation and data acquisition systems. Preferred: thermal testing/characterization for packaged devices, liquid cooling solutions like fans/cold plates, and reliability/environmental stress testing.
• Software & Simulation: Proficiency with CAD software (SolidWorks preferred). Preferred: familiarity with FEA and CFD tools such as ANSYS Mechanical/Fluent, Icepak, or COMSOL.
• Data Analysis & Fabrication: Experience creating engineering drawings to support fabrication, alongside data processing and analysis using MATLAB, Python, Excel, JMP, or similar tools. Preferred: familiarity with IC packaging, metrology, or failure analysis.
• Professional Attributes: Strong problem‑solving and communication skills, with a hands‑on, detail‑oriented mindset, comfortable working cross‑functionally in a fast‑paced R&D environment.

$125,000 - $155,000 a year. The position is eligible for company shares. Actual compensation may be higher or lower in the range based on various factors, including, but not limited to a candidate’s job duties, experience, and location. We will also consider higher‑level candidates and salary will be adjusted accordingly.

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. Our benefits begin as early as your first day of employment. Medical and vision coverage are retroactive to your start date, while dental and voluntary benefits take effect once you’ve completed your enrollment.

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.

Physical Requirements

• Use appropriate PPE and follow all safety policies, practices, and procedures.
• Visit: Sit, stand for long periods, walk, grasp, reach with hands and arms, lift below and above shoulders, bend, twist at the waist, climb, balance, stoop, squat, kneel, crawl, talk, hear, see, use fine finger manipulation, and complete repetitive motions.
• Some tasks may require the use of ladders or stairs.
• Some tasks may require driving or the use of foot controls.
• Lift/carry and push/pull up to 50 pound.

This employer participates in E‑Verify and will provide the federal government with your Form I‑9 information to confirm that you are authorized to work in the U.S. If E‑Verify cannot confirm that you are authorized to work, this employer is required to give you written instructions and an opportunity to contact Department of Homeland Security (DHS) or Social Security Administration (SSA) so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment. Employers can only use E‑Verify once you have accepted a job offer and completed the Form I‑9.