Materials Process Engineer

Diamond Foundry is looking for a Materials Process Engineer to help develop and scale processes for a proprietary advanced material used in our diamond manufacturing. You will work hands-on across the process: molding and extruding the material, characterizing its properties, and engineering its interfaces with diamond and glass substrates. It's a rare early-career chance to take a novel material from lab experiments to high-volume production, working alongside laser, optical, and manufacturing engineers. This role will be located in Fremont, CA, and will require this candidate to be on-site 5 days a week. Responsibilities • Run moderate-temperature molding processes and help design and fabricate molds, tuning temperature, pressure, and surface finish to reduce defects • Run extrusion trials and measure how temperature, pressure, and die design affect flow, surface quality, and dimensional consistency • Characterize the material's thermal, optical, and flow properties before and after processing, and track how they change over reuse cycles • Clean and functionalize diamond and glass substrate surfaces (e.g., plasma treatment) and evaluate adhesion and interface quality • Run designed experiments and turn the data into process improvements, documenting them in SOPs and following EHS practices for toxic materials Requirements • BS or MS in Materials Science, Chemical Engineering, Physics, Chemistry, or a related field; entry-level (0-2 years, internships included) • Internship or direct lab experience in glass characterization or molding, ideally with chalcogenide or other specialty glasses • Familiarity with moderate-temperature processing such as glass or polymer molding and extrusion, plus surface treatment and safe handling of toxic materials • Experience characterizing thermal, optical, and structural properties (e.g., DSC, viscometry, UV-Vis, FTIR, XRD, SEM/EDS), using designed experiments, and analyzing data in JMP, Python, or Google Sheets $105,000 - $125,000 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.