R&D Process Development Engineer

At Delft Circuits, we’re hiring an R&D Process Development Engineer.

The Role

As a Process Development Engineer you will be at the heart of our flex fabrication innovation. This is a hands-on role where you’ll spend most of the time in the lab fabricating flexes for R&D testing, exploring new capabilities and running structured experiments to strengthen and refine our process flows. With a structured and practical mindset, you turn assignments into clear daily execution plans, document results with precision, and proactively propose the next steps that move us forward.

About Delft Circuits

At Delft Circuits, we’re pushing the boundaries of cryogenic electronics with our flagship Cri/oFlex® platform—the world’s first fully integrated cryogenic I/O solution for quantum computing. Based in Delft, Netherlands, our diverse team of engineers, physicists, and innovators combines deep technical expertise with an open, collaborative culture—where ideas are shared, challenges are tackled head-on, and impact is real.

From hands-on lab work to supporting our customers to scale their quantum computers, at Delft Circuits, your work truly matters.

Your key responsibilities will include

Process Experimentation & Development

• Running lab-based process experiments to explore parameter windows and improve repeatability and robustness

Fabrication & Validation

• Fabricating flexes and test structures to validate new capabilities and customer-driven requirements

Quality Control Support

• Applying quality control checks during development (microscope inspection, electrical checks) and support quality control operations when needed

Process Improvement & Troubleshooting

• Implementing and refining different production processes; troubleshoot issues and drive practical improvements

Documentation & Communication

• Clearly documenting experiments, recipes, settings and results, and communicating outcomes to the team

Cross-Functional Collaboration

• Working closely with process and product development, systems engineering, production, and quality control teams to ensure new capabilities are manufacturable and integrated into the process flow

What you bring

• Master’s degree preferred in Nanofabrication, Microelectronics, Materials Science, Electrical Engineering, Chemical Engineering, Nanotechnology, or a related field (or equivalent hands-on experience)
• Minimum of 2 years of relevant hands-on experience in a lab, cleanroom, or high-tech manufacturing environment
• Experience with microfabrication / semiconductor fabrication processes such as thin-film deposition, lithography, etching, or other relevant semiconductor processing steps
• Comfortable using diagnostic tools and measurement equipment (microscope, basic electrical tests)
• Structured, practical approach to experimentation; familiarity with Design of Experiments and Six Sigma methods is a strong plus
• Independent working style with proactive communication and strong problem-solving skills

Bonus points for

• Hands-on experience with flexible substrates or polymer-based processes
• Six Sigma training/certification (e.g., Green Belt) or demonstrated continuous-improvement experience
• Chemical process knowledge relevant to fabrication and surface preparation

Why Join Delft Circuits?

At Delft Circuits you will work on cutting-edge cryogenic electronics that supports the scale-up of quantum technologies. You’ll be part of a team that values curiosity, ownership and practical execution. You’ll have the space to run experiments properly, turn data into robust processes, and see your work translate into customer-impacting hardware. We offer a collaborative environment that values inventive “beyond-the-box” thinking.

You’ll be working from our headquarters at the Kabeldistrict in Delft, featuring a 200 m² lab, a workshop, dedicated assembly and testing areas, and a modern office space.