Production Test Engineer

Permanent employee, Full-time · Delft

Job Description
Do you want to work with cutting-edge quantum technology? Do you have a solid technical background and do you work with a lot of perseverance and accuracy? Do you want be part of a diverse and dynamic scale-up company? Then we invite you to read on and apply!

Single Quantum ( makes the world's fastest and most-sensitive light-detection systems limited only by the laws of physics!
As a scale- up company, we are growing steadily in both size and presence worldwide. We are looking for a dedicated engineer to join our test team as a Detector Test Engineer in our optics lab. 

We are looking for a full-time engineer to be based at our headquarters in Delft. 

As our Production Test Engineer (Detector Test Engineer), you will be responsible for the testing, characterization and validation of our detector chips, which are the core of our superconducting nanowire single photon detector (SNSPD) systems.
You will be joining an international and innovative environment and will be working in our Production Labs in Delft, alongside our team of physicists and engineers.
Your main tasks include: 
Perform optical and electrical characterization of SNSPDs by using a variety of lab equipment.
  1. Execute quality control and performance validation of the complete systems.
  2. Check and maintain characterization setups to ensure accuracy.
  3. Mount detectors and check the performance of the cryostats.
  4. Be a part of the feedback cycle involving Nanofabrication, Mounting and Bonding, and Test teams to develop the best photon detectors possible.
You will work closely with other team-members, but the actual testing is performed independently. You will need real tenacity and great accuracy to follow through. You will play an important part in getting our systems on time to our scientific customers all over the world, and in helping the company reach its detector quality goals. 
We are in the process of developing a more rigorous and automated fashion of testing. We will also ask you to contribute and assist with these processes in order to optimize and reduce testing time and thus further decrease production time and costs.
Your profile and requirements
We are looking for someone who has...
  • A Bachelor’s or HBO degree in the field of Optics, Physics, Nanotechnology, Electrical Engineering, or equivalent;
  • A feeling of wonder and admiration for physics;
  • Great teamwork and communication skills;
  • High sense of commitment and responsibility;
  • Precise working attitude; 
  • Good time management skills; 
  • And you have a good working proficiency in English.
The following are a plus:  
  • Experience with laser set-ups; 
  • Experience with nanofabrication; 
  • Experience with cryogenics;  
  • Experience with automation;
  • Knowledgeable about (quantum) optics; 
  • Work experience in a clean room or physics lab; 
What we offer
  • An international, high-tech environment with colleagues from the Netherlands, Argentina, India, Italy, China and the list goes on!
  • Competitive salary and benefits;
  • Travel allowance;
  • A retirement plan;
  • Up to 38 vacation days; 
  • Room for new initiatives and ideas. We’re always willing to listen, whether you’ve been with us for a week, a month, or a year;
  • An employer who truly values personal development and growth who invites you to do the same;
  • Social security offered by the Collective Labor Agreement Metal & Technology (CAO Metaal en Techniek)
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.
Therefore, we strongly encourage female candidates to apply for this position.
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.

If you have any questions before applying or would like to have a general conversation about Single Quantum, you can contact our HR Officer, Jacqerina Jarad on +31 (0) 850 400 902 or email to
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!


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

A bright future where every single quantum counts

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

We are looking forward to hearing from you!
Thank you for your interest in Single Quantum B.V.! 
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