Process Engineer

Job Title: Process Engineer

Location
:
Tempe, AZ

Division: Technology

Department: Manufacturing

Quantum Computing Inc. (QCi) (Nasdaq: QUBT) is an innovative, integrated photonics company that provides accessible and affordable quantum machines to the world today. QCi's products are designed to operate at room temperature, consume minimal power, and remain cost-effective. The Company's portfolio of core technologies and products offers unique capabilities in high-performance computing, artificial intelligence, cybersecurity, and remote sensing.

We are seeking a highly motivated Process Engineer to join our Thin-Film Lithium Niobate (TFLN) photonics foundry team. This role focuses on semiconductor nanofabrication, process development, and the continuous improvement of manufacturing processes for advanced TFLN photonic integrated devices. This is a hands‑on cleanroom engineering position, and the successful candidate will spend a significant portion of their time operating fabrication equipment, troubleshooting processes, and conducting experiments in the cleanroom.

The candidate will be accountable for developing and maintaining robust processes that support QCi's manufacturing objectives for safety, quality, cost, and delivery.

• Perform hands‑on semiconductor and photonic device fabrication in a cleanroom environment using a range of nanofabrication tools, including e-beam and photolithography systems, plasma etchers, chemical and physical vapor deposition systems, e-beam evaporators, and metal electroplating equipment.
• Design, lead, and execute R&D experiments to improve nanofabrication results, process stability, repeatability, yield, and overall process capability.
• Facilitate the transition of research‑scale, chip‑level processes to low‑and medium-volume wafer‑scale manufacturing.
• Use advanced metrology tools, including critical‑dimension scanning electron microscopy (CD‑SEM), atomic force microscopy (AFM), ellipsometry, profilometry, X‑ray photoelectron spectroscopy (XPS), X‑ray diffraction (XRD), and optical interferometry, for process characterization and defect analysis.
• Troubleshoot process deviations, particle contamination, and equipment or unit‑process performance issues; implement corrective actions and continuous‑improvement strategies.
• Establish and maintain statistical process control (SPC) systems for process monitoring and optimization.
• Collaborate with process integration, equipment, and design engineers, as well as other foundry team members, to resolve fabrication challenges.
• Support rapid experimental iteration and maintain short turnaround times between fabrication, characterization, data analysis, and subsequent process runs.
• Develop and maintain standard operating procedures (SOPs), process specifications, work instructions, and best‑known‑method documentation.
• Mentor junior engineers and provide technical leadership in semiconductor lithography, wet processing, mask processes, and related metrology.
• Bachelor's, Master's, or Ph.D. degree in Materials Science, Electrical Engineering, Physics, or a related field.
• 5+ years of hands‑on semiconductor process engineering experience, with expertise in at least one of the following areas: e-beam lithography, photolithography, plasma dry etching, wet etching and cleaning, chemical vapor deposition, physical vapor deposition, e-beam evaporation, or metal electroplating.
• Hands‑on experience with metrology tools such as CD‑SEM, AFM, ellipsometry, film‑thickness measurement systems, and particle‑measurement systems for process verification and defect analysis.
• Demonstrated ability to design and execute technical experiments, analyze results, and draw meaningful conclusions from…