Experimental Physicist, Soft X-ray Source Development

Invisix; Eindhoven; On-site; EUR 70,000 - 90,000; Full time

Benefits offered by this job

Employee Share Ownership Plan

Learning and development budget

Flexible working arrangements

Job summary

Invisix is seeking an Experimental Physicist to advance the next-generation soft X-ray source for its metrology systems in Eindhoven. You will take setups from assembly to stable operation, identify performance limits and translate findings into hardware specs.

You'll collaborate with physicists and engineers, perform diagnostics, optimize the SXR source, solve hardware issues, and contribute to test bench design as the team grows. Fluency in English and hands-on lab work are essential.

Qualifications

• PhD in physics/optics/photonics or a related field, or MSc with 3–5 years of relevant experience.
• Strong grasp of physics; safe, structured lab work, independently and in a team.
• Hands-on experience with high-power or ultrafast laser systems and optical setups.
• Experience with optical measurement and diagnostics (spectroscopy, imaging, beam profiling, pulse characterization, power measurement).
• Experience with vacuum systems and lab instrumentation (detectors, motion control, data acquisition).
• Programming skills for data analysis or instrument control (Python, MATLAB, LabVIEW).
• Good spoken and written English.
• Active use of AI tooling to boost efficiency.

Responsibilities

• Build, align and commission optical and vacuum systems of the test bench to stable operation.
• Set up and run diagnostics to characterize the SXR light and optical systems generating it.
• Measure and optimize SXR source performance and translate learnings into specifications for metrology equipment.
• Solve hardware issues and test new ideas quickly.
• Control experiments and analyze data with detectors, motion control and data acquisition.
• Collaborate with physicists and engineers and take on adjacent responsibilities as the team grows.

Skills

Analytical thinking

Hands-on experimental work

High-power laser systems

Optics and metrology

AI tooling usage

English communication

Education

PhD in physics/optics/photonics or related field

MSc with 3-5 years high-tech experience

Tools

Python

MATLAB

LabVIEW

Job description

Invisix is seeking an Experimental Physicist to advance the next-generation soft X-ray source for its metrology systems in Eindhoven. You will take setups from assembly to stable operation, identify performance limits and translate findings into hardware specs.

You'll collaborate with physicists and engineers, perform diagnostics, optimize the SXR source, solve hardware issues, and contribute to test bench design as the team grows. Fluency in English and hands-on lab work are essential.