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About Caeleste

Caeleste is a proud group of engineers, scientists & enthusiasts who create innovative CMOS image sensor solutions. We go the extra mile to create unique & beyond state-of-the art solutions that allow our customers to differentiate in their field of expertise. From within our Belgian office, we collaborate with world-class multi-national companies that shape the market in space, scientific, medical, industrial and life science applications. Thanks to the in-house expertise on high-speed, sub-electron noise, ultra-high dynamic range and extreme radiation-hard designs, Caeleste ensures an end-to-end quality focus on the entire product flow. At Caeleste, having fun goes hand-in-hand with our proudness. By becoming a part of Caeleste, you will be able to experience the direct impact of your ideas and actions, regardless of your role or seniority.

Characterization Engineer

You will join the characterization & test team that is responsible for the functional validation, characterization and production test of our image sensor prototypes & products. For this position we are looking for junior engineers with great potential. You will have the opportunity to grow according to your capabilities and aspirations. As part of a multi-disciplinary team, you will contribute to the development & production of new CMOS image sensors through characterization of image sensor devices and test structures. Your responsibilities are diverse and include electro-optical image sensor characterization, functional validation of new designs & processes, optimization of operating conditions and performance limitations, investigation and understanding of image artifacts, development of new test methods and systems, contributing to technical reports and customer interactions.

Job specific requirements:

  • Bachelor or Master in (Micro-)Electronics Engineering, Physics or equivalent by experience
  • Basic knowledge of CMOS technology and mixed-signal analog/digital electronics
  • Fast learner of theoretical concepts to master and discuss with internal experts
  • Knowledge of electronic test & qualification equipment
  • Understanding of programming test procedures and flows in Python
  • Creativity, accuracy and being result driven are valued
  • Good communication skills in English in writing and presenting
  • Accountable & committed team player

Additional skills that are of interest:

  • Special interest in image sensors & test systems in a production context
  • Awareness of electro-optical characterization or evaluation of image sensors
  • Understanding of image sensor packages, surrounding electronics, ADCs, DACs, PLLs
  • Working language is English, any other language is a plus

We offer:

  • A competitive compensation & benefits package
  • A competitive & international context of world-leading companies
  • A technological playground within a mixed-skilled, multi-cultural team of experts
  • A continuous focus on learning at Caeleste University
  • A flexible & pragmatic environment with attention to teamwork and work-life balance

Apply here

For all your questions, please contact Ewa Burzynska or


In Caeleste, you are not just an employee but a member of a family. I understood that from how I was welcomed into my new career by my new colleagues on the first day. I was surrounded by curious and creative minds that were ready to share their experiences and insights with me and guide me through the obstacles. It was my first step to a professional life and I adapted to it easily thanks to the support of my colleagues. I feel part of an academy where all of us are both student and teacher and where the ideas can be freely discussed. Caeleste is the place where those creative ideas turn into innovative designs through experience. I feel lucky to be a part of this creation process.

Bilgesu Sezgin
Junior Analog Designer

As a lead design engineer, I analyze specifications from customers and translate the requirements to architecture. Next, we use this architecture to design an image sensor that is the beating heart of our customers’ next frontier project. I can see a project growing from customer specifications up to real images taken by the realized silicon in our test system.
The aspect I like the most about Caeleste is how it offers a path where you perfectly combine growing and learning in conjunction with contributing and engineering on real projects. I share my experience internally through in-house courses during a weekly project called ‘Caeleste University’, my colleagues do the same. This drives fast knowledge sharing and accelerating growth both for the engineer and company.

Arne Crouwels
Lead Design Engineer

I am happy to be part of a company with such an innovative R&D spirit as Caeleste. The diversity of the projects offers me challenges that help me grow as an engineer. It is my team’s responsibility to bring a sensor to ‘life’. I guarantee operational excellence for the customer’s application via technical support”.

Azamat Kenesbekov
Characterization Engineer

We are looking for an experienced Characterization Engineer