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JOB DETAILS

Development Test Engineer

CompanySingle Quantum
LocationDelft
Work ModeOn Site
PostedSeptember 3, 2026
About The Company
Light detectors are crucial components of optical imaging and telecommunication systems. The ultimate photon detector is capable of detecting the elementary particle of light, a single photon. Founded in 2012, Single Quantum was a pioneer in developing, manufacturing and commercializing the ground-breaking technology of superconducting single photon detectors. Single Quantum provides the best performance in photon detection, enabling the most demanding optical applications. Our multi-channel detection system has already been chosen by more than 250 academic and industrial customers all over the world to perform complex optical measurements. The unique combination of unparalleled detection efficiency and time resolution makes our superconducting detectors the ideal choice for quantum communication and cryptography, infrared fluorescence spectroscopy, and laser ranging. If you want to learn more about our products or if you are interested in joining our team, please visit www.singlequantum.com or contact us via info@singlequantum.com.
About the Role

Job Description

Would you like to work at one of the fastest growing quantum technology companies with cutting-edge technology? Single Quantum is looking for a hands-on, analytical engineer or physicist who is excited to characterise cutting-edge single-photon detection technology and help bring new products from the lab into production. Do you want to be part of a diverse and dynamic scale-up company?
By all means, please read on!
 

IN SHORT 
Single Quantum designs and builds the world's fastest and most sensitive light detection systems, limited only by the laws of physics!

The quantum world is small but growing. We are a steadily-growing scale-up with an ever-expanding worldwide customer base. We provide our photon detection systems to a wide range of customers and research institutes. As we continue to develop new detectors and customer systems, we need to fully characterise and validate them before they are transferred into production. Therefore, we are looking for a Development Test Engineer to join our Development team and make sure that every new product is measured, understood, and confidently handed over to production.

WHAT YOU WILL BE DOING 
As a Development Test Engineer, the main goal is to fully characterise our newly developed detectors and customer systems and to communicate validated results that enable the reliable transfer of new products from development into production. This includes (but not limited to):
  • Perform full characterisation of newly developed detectors and customer systems
  • Develop and optimise measurement procedures
  • Assemble, operate, and maintain optical and electrical experimental set-ups
  • Document and communicate results through structured reports and presentations
  • Maintain detailed documentation (SOPs, test protocols, calibration logs) to ensure reproducibility and traceability of measurements
Ideally, you will work full time and will be based at our HQ in Delft, contributing to our dynamic and friendly work environment!

As we scale up, our processes need to evolve to improve efficiency and effectiveness in the lab, as well as improve quality where possible. We would also ask you to contribute to these processes.

Your profile and requirements

We are looking for someone who has...
  • A MSc (or equivalent) in Applied Physics, Engineering, or a related field;
  • Analytical, with strong problem-solving and troubleshooting skills;
  • A solid knowledge of electronics, optics, lasers, and single-photon detectors (SNSPDs);
  • Practical, hands-on skills and enjoy building, operating, and maintaining optical and electrical experimental set-ups;
  • A strong reporting and presenting skills and can communicate validated results clearly to different teams;
  • Organisation skills, with good planning, time-management, and administration skills;
The following are a plus:
  • Programming skills (for example Python) for measurement automation and data analysis;
  • Basic knowledge of soldering;
  • Basic knowledge of cryogenics;
  • Affinity with photonics or quantum technology.

What we offer

  • A collaborative, international team working at the forefront of high-tech innovation, with colleagues from various (and international) background.
  • Salary in accordance to the CAO (Collective Labour Agreement) Metalelektro, complemented by secondary benefits.
  • Comfortable workplace perks, including coffee, fresh fruit, and weekly catered lunches.
  • A solid retirement plan to support your future (provided by PME).
  • Up to 40 vacation days per year (based on full-time employment).
  • Plenty of space to share your ideas and take initiative—your voice matters from day one.
  • A company culture that genuinely supports personal growth and professional development.
  • Comprehensive social security benefits in accordance with the Metalelektro Collective Labor Agreement (CAO Metalelektro).

Equal Opportunity Employer

At Single Quantum, we celebrate diversity and are committed to creating an inclusive environment for all employees. We are proud to be an equal opportunity workplace.

How to apply

If the job description and Single Quantum excites you, we encourage you to submit your CV as well as a motivation or cover letter explaining why you think you're a good fit for the position, along with what attracts you to the position.

Contact

If you have any questions before applying or would like to have a general conversation about Single Quantum, you can contact our HR Business Partner, Jacqerina Jarad on +31 (0) 850 400 902 or email to career@singlequantum.com

About us

At Single Quantum, we confront every challenge with innovation, dedication, and passion. Founded in 2012, our team emerged as true pioneers of single photon detection technology: we were among the first to manufacture and commercialize superconducting nanowire single photon detectors. Since then, our multi-channel Single Quantum Eos photon detection system has been chosen by more than 100 academic and industrial labs all over the world to perform complex optical measurements.


We want to share this groundbreaking technology with you. Guided by our mission, vision and core values, Single Quantum will develop the world’s fastest and most sensitive light sensors limited only by the laws of physics. Join us in turning photons into data!



Mission 

We make the world’s fastest and most sensitive light sensors limited only by the laws of physics.



Vision
A bright future where every single quantum counts


Core Values
Respect   Trust  |  Proactiveness  |  Teamwork  |  Impactful Innovation  |  Quality



Key Skills
Applied physicsElectronicsOpticsLasersSingle-photon detectorsSNSPDsExperimental set-upsData analysisMeasurement automationPythonSolderingCryogenicsReportingProblem-solvingTroubleshootingCalibration
Categories
EngineeringScience & ResearchTechnology
Benefits
Retirement plan40 vacation daysCatered lunchesFresh fruitCoffeeProfessional development support
Job Information
📋Core Responsibilities
The Development Test Engineer will characterize newly developed detectors and customer systems to ensure reliable product transfer from development to production. This role involves developing measurement procedures, maintaining experimental set-ups, and documenting results through structured reports.
📋Job Type
fixed term
💰Salary Range
€3,400 - €3,996
📊Experience Level
0-2
💼Company Size
73
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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