Junior R&D Optical Engineer – Laser Processes F/H

I apply

Published on 20/08/2025

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

The CANUNDA product line consists of innovative laser beam shaping systems, designed to optimize laser processing applications such as welding, additive manufacturing, drilling, and surface texturing. These systems are intended for demanding industrial environments, requiring reliability and robustness.

The CANUNDA R&D Team, brings together expertise in optics, mechanics, electronics, methods, and systems. It is dedicated to the development of prototypes and products at various levels of technological maturity, from proof of concept through to series production.

Your main missions

Within this team, you will be responsible for:

Carrying out optical experiments: alignments, assemblies, tests, and characterizations of beam-shaping systems;
Contributing to the continuous improvement of existing products’ performance;
Participating in the design of complex and innovative optical systems;
Supporting the installation and commissioning of products at customer or partner sites, as well as during test campaigns.

Profile required

You have completed a solid five-year degree in optics (theoretical and applied) and are eager to put your skills to work in your first professional experience;
You have initial hands-on experience in experimental optics (internships, work-study programs, academic projects…);
You possess a good command of technical English, both spoken and written, enabling you to communicate effectively with colleagues and partners;
You are able to work as part of a team while demonstrating autonomy and rigor.

Required languages

English - Level advanced

Réf: 8bd3dc42-3459-40ef-afd0-8022c38cb526

Apply

Junior R&D Optical Engineer – Laser Processes F/H

Permanent contract

Full time

Rennes

Title *

Mrs.

Mr.

Last name *

First name *

E-mail *

Phone number *

Availability *

Salary expectations (Gross/year) *

Photo

Resume *

As part of the creation of your application profile on the career site of CAILabs, the information collected above is processed based on the legal grounds of pre-contractual measures for establishing contact with CAILabs and for the potential conclusion of an employment contract with the company, as well as on the legitimate interest in building a CV database.

No transfer outside the European Union will take place.

Unless you take action, your data will be retained for no longer than 2 years.

In accordance with current security standards and policies (PSSI), effective and optimal technical measures are applied to data processing (secure access and protocols, rights management and administration, employee awareness, etc.).

In compliance with the European regulations on data protection, you have the right to object to, access, rectify, and delete your data.

* Required fields

Share job