Optical R&D Engineer F/H

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Update on 23/06/2025

  • Contract type:  Permanent contract

  • Work time:  Full time

  • Location Rennes

The company

Founded in 2013, Cailabs designs, manufactures, and develops innovative photonic solutions for the space, industry, telecommunications, and defense sectors. A global specialist in laser shaping, the company has accelerated its growth in the space field with turnkey optical ground stations that integrate atmospheric turbulence compensation technology. This makes it one of the first companies to harness very high data rates enabled by optics in a commercial ground station.

Cailabs currently has 150 employees, including 35 PhDs. With 29 patent families filed, the company is one of the most innovative companies in France. It is headquartered in Rennes, with offices in Paris and Washington (USA).

Post description

Would you like to apply and further develop your optics skills through innovative technical projects in laser communication fields (such as satellite-to-ground optical links, inter-satellite links, or point-to-point communication)?

Join the R&D department at Cailabs!

With a background from an engineering school specializing in optics, complemented by a PhD, you will become part of a dynamic team of engineers and PhDs who share your passion for tackling stimulating technical challenges.

Working within a multidisciplinary team, you will find a collaborative and intellectually engaging environment.

Your main missions will include:

  • Contributing to the experimental development of optical ground stations enabling satellite-to-ground optical communication links;

  • Operating experimental missions for demonstrations and partnerships;

  • Proposing technical solutions and ideas in response to challenges raised internally and/or by clients;

  • Identifying, evaluating, selecting, and managing new suppliers and service providers;

  • Performing tests and validating the performance of optical systems;

  • Providing and updating technical documentation (drawings, specifications, procedures, and design files) throughout development and industrialization phases;

  • Participating in multi-disciplinary projects in collaboration with different technical teams (electronics, mechanics, software).

Profile required

With a background from an engineering school specializing in optics, complemented by a PhD, you have 3 to 4 years of experience in academic research or R&D within an industrial environment.

  • Do you have experience in academic research or industrial R&D?

  • Do you have expertise in free-space optics?

  • Are you comfortable with hands-on optical setups and experimentation?

  • Do you have basic programming skills in Python, C, Matlab, or similar languages?

  • Are you able to communicate effectively about your technical projects in English, both written and spoken?

  • Are you capable of working both independently and as part of a team?

Bonus points:

  • Interest in system integration and interfacing;

  • Strong synthesis skills and a proactive attitude.

Required languages

  • English English - Level advanced

Réf: 721a1110-dcd2-4fd6-81dc-e7b9346c0769

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Optical R&D Engineer F/H

Permanent contract
Full time
Rennes

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