Industrial software engineer W/M

I apply
  • Contract type:  Permanent contract

  • Work time:  Full time

  • Location Rennes

Job description

Founded in 2013, Cailabs is a French deep tech company that designs, manufactures and sells innovative photonics products for telecommunications and industrial lasers. With a leadership in complex light shaping, its technology is currently covered by 19 patents. Its innovative components play a role in a variety of fields, from aeronautical wiring to factory premises networks, not forgetting additive manufacturing or its contribution to several world records (in particular the fiber optic throughput record held by Japanese operator KDDI).


The company, which addresses a worldwide market, has won several awards, most notably the EY Born Global Award for its international dimensions, the Pass FrenchTech prize for its growth in excess of 100% year on year and the DeepTech4Good Industry 4.0 award for the importance the company gives to technological leadership.

Cailabs, based in Rennes, has raised €16.6 M since its creation and has +50 staff.



So, would you like to join us?

Essential skills

You have a master degree in computer science or software engineering and have 5 + years of professional experience building industrial software. 

Prefered skills: 

  • Programming experience in C/C++, Python, or similar programming language
  • Experience in system architecture
  • Knowledge of industrial communication protocols (EtherCAT, Modbus, Pub/Sub brokers etc.) desirable
  • Ability to work independently and in a team
  • Ability to discuss your technical projects with your team in French and English, both written and spoken
  • Ability to solve problem

About Cailabs

Founded in 2013, Cailabs is a French deep-tech company located in Rennes. We design, manufacture, and sell innovative photonics products based on the shaping of light. The fast-growing company has raised 42.6 millions euros since its creation and has 60+ staff.


When you join Cailabs, you will find :

- a brilliant team driven by a common mission : to create and sale products that  help solve some of today’s major industrial and technological challenges for multiple applications

- a dynamic structure that combines agility and resources to match its ambitions
- a company at the cutting edge of technology, from the development of prototypes to the industrialization phase.

And also : 

  • Times of sharing and conviviality (annual seminar, meals, group games, sports activities, etc.)
  • A health insurance plan covered at 100% by Cailabs.
  • A bonus system to reward collective and individual performances

Joining Cailabs is finally the assurance that everything will be done to help you perform, improve and take up new challenges.

More information on,, in particular: TILBA | Cailabs : Fiabiliser les communications laser

Réf: a9ab38ef-51c2-47f7-934c-9c7f9b8648fc

This position has been filled.

Share job

Our Job Offers