Microfabrication Process Development Engineer F/H

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Update on 14/01/2026

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 170 employees, including 40PhDs. 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 micro-fabrication division is responsible for producing unique, high–value-added optical components, which serve as key elements in Cailabs’ technologies.

To meet the nanometric precision requirements of these components, a state-of-the-art working environment has been established. Continuously improved and adapted to new needs, it enables us to achieve ever-higher levels of quality and reliability.

Within this environment, you will play a key role in the development, evolution, industrialization, and support of these processes and facilities.

Your main responsibilities will include:

Becoming an expert in manufacturing and metrology tools and know-how;
Applying this expertise within the design office to optimize processes and ensure the proper fabrication of optical components;
Leading and contributing to the development of innovative manufacturing processes;
Providing support for complex manufacturing issues;
Participating in the transfer of processes from R&D to operations.

Profile required

You hold an engineering degree or a Ph.D;
You have knowledge and experience in optical fabrication, nanofabrication, or metrology;
You are comfortable with scientific computing and enjoy programming in general;
You are familiar with the Python programming language, Git version control, and collaborative coding best practices;
You are able to communicate effectively in both French and English, orally and in writing, on technical topics with your team;
You can propose concrete and innovative solutions to complex problems.

Assets:

You have strong organizational skills and are capable of leading projects autonomously;
You have knowledge and mastery of ultra-high-precision manufacturing technologies.