Optical Technician W/M

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Update on 18/07/2024
  • Contract type:  Permanent contract

  • Work time:  Full time

  • Location Rennes

Job description

Founded in 2013, Cailabs is the number one global specialist in laser shaping, tied to a unique, patented technology: Multi Plane Light Conversion (MPLC).

At Cailabs we design, manufacture and develop innovative photonic solutions for satellite communications, industrial applications (laser machining), fiber optic telecommunications and defense.

Since 2020, Cailabs has seen its growth accelerate in the field of optical ground stations/ free space optical communications and we are looking to expand our customer base across the U.S. government, commercial, and defense markets. Cailabs patented MPLC technology passively mitigates atmospheric turbulence to enable ultra-high-speed satellite to earth communications -an exciting technology with unlimited potential. Cailabs currently employs over 90 people, including 25 PhDs. with 26 patent families registered. 

Essential skills

Would you like to put into practice and develop your skills in assembling components in the field of optics?

Would you like to contribute to the manufacture of our products based on Cailabs' core technology?  

Then join the Cailabs Operations department!

Under the supervision of the workshop manager, you will take part in many stages of product assembly and make an active contribution to R&D projects in conjunction with the optical engineers.

Your main tasks will be to :


  • Assemble and align innovative optical systems,
  • Carry out system performance tests,
  • Record the performance of systems/sub-systems and ensure their reliability,
  • Resolve technical bottlenecks,
  • Participate in drafting and updating procedures,
  • Helping to define qualification processes for R&D projects (product robustness, in-chamber measurements, determining performance limits, etc.).
Recrutement: Optical Technician W/M chez CAILabs à Rennes

About Cailabs

You have a 2/3-year higher education qualification in photonic systems or equivalent,

You are meticulous, rigorous and organised (the job requires good dexterity),

You have a good command of IT tools,

You are autonomous and able to make suggestions,

Your interpersonal skills are an asset when it comes to working as part of a team with both the Operations and R&D Technical teams.

Plus points:

  • You will have experience of aligning and testing optical components,
  • You have knowledge of UV bonding and micro-positioning of optics in free space,
  • You are able to adapt to a changing environment,
  • You have knowledge of electronics (soldering and ESD awareness).

Key points: 

  • You have a 2/3-year higher education qualification with a major in optics,
  • You are meticulous, rigorous and organised (the job requires good dexterity),
  • You're a self-starter, a self-starter, curious and dynamic,
  • Your interpersonal skills are an asset when it comes to working as part of a team, both with the operations teams and the technical R&D teams.


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 16.6 millions euros since its creation and has 50+ staff.


When you join Cailabs, you will find : 

  • The opportunity to participate in an incredible human adventure by working with colleagues who share a strong team identity, based on challenge, intellectual emulation and responsiveness,
  • The possibility of joining a dynamic, human-sized structure, combining agility and resources to match its ambitions,
  •  A company at the cutting edge of technology, from the development of prototypes to the industrialisation phas.

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.

Find out more about us on www.cailabs.com

Réf: 13398f3a-8e79-4213-bd1b-f3f4c1e266cc


Optical Technician W/M

Permanent contract
Full time

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