Field Service Engineer

The Role

As a Field Service Engineer you will install, commission, and support our cryogenic I/O systems at customer sites around the world. You will work at the interface of engineering, manufacturing, and customer success, ensuring our products are integrated successfully into complex quantum computing systems.

This is a hands‑on role requiring mechanical precision, technical troubleshooting, and excellent communication skills. You will become a trusted technical representative of Delft Circuits, supporting customers during installation, upgrades, maintenance, and training.

This position requires frequent international travel (approximately 30–50% of the time) to support installations at customer sites worldwide.

Delft Circuits develops and manufactures advanced cryogenic I/O solutions that enable the next generation of quantum computing systems. Our products solve one of the key scaling challenges in quantum technology by providing reliable, high-density interconnects operating at millikelvin temperatures. Working at Delft Circuits means contributing to cutting‑edge technology alongside leading quantum computing companies and research institutes worldwide.

• Cooperate installing cryogenic I/O systems in dilution refrigerators and quantum computing laboratories, both research and industrial scale
• Perform mechanical, electrical, and thermal integration of Delft Circuits products
• Verify system functionality through testing, inspection, and acceptance procedures

• Document installation activities and provide commissioning reports

• Diagnose and resolve installation and integration issues at customer sites
• Provide first‑line technical support during system commissioning
• Coordinate with engineering teams to resolve complex technical challenges

• Support preventive maintenance and product upgrades

• Capture customer feedback and communicate lessons learned to engineering, research and product development teams
• Improve installation procedures, documentation, and service tools
• Contribute to product reliability and manufacturability improvements

• Work closely with R&D, Production, Quality, and Sales teams
• Support factory acceptance testing before shipment
• Assist in developing installation manuals and training materials
• Support in‑house manufacturing activities (assembly, internal QC test) in between the customer’s installation sessions

• MBO+ or higher in Mechanical Engineering, Electrical Engineering, Mechatronics, or a related technical field
• Experience with installation, commissioning, or servicing of high‑tech equipment, for at least one year
• Strong hands‑on mechanical skills with excellent attention to detail
• Ability to read technical drawings and assembly documentation
• Experience troubleshooting technical systems
• Basic understanding of RF and microwave measurements, including vector network analyzer (VNA) operation, calibration techniques, S‑parameter measurements, and DC characterization
• Excellent communication skills in English
• Willingness to travel internationally (approximately 30–50% depending on project load)

• Experience working with cryogenic equipment, vacuum systems, or scientific instrumentation.
• Familiarity with dilution refrigerators or low‑temperature physics laboratories.
• Experience with cleanroom environments.
• Understanding of RF, microwave, or high‑frequency cabling.
• Experience performing RF and microwave measurements using a Vector Network Analyzer (VNA) at an expert level.
• Basic programming or scripting skills (Python, LabVIEW, or similar).
• Experience working in customer‑facing technical roles.

• Is meticulous and works with precision.
• Enjoys solving practical technical challenges.
• Communicates confidently with customers and colleagues.
• Is adaptable and comfortable working in dynamic environments.
• Takes ownership and can work independently while collaborating effectively across teams.
• Maintains composure under pressure and approaches problems methodically.

You will split your time between:

• Delft Circuits’…