Ivv Engineer F/H

Ivv Engineer F/H

Apply to this job

I apply

Published on 12/06/2026

• 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 more than 200 employees, including 41PhDs. 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

Cailabs is looking for an IVV Engineer who is rigorous, intellectually curious beyond their core expertise, and willing to progressively broaden their scope toward a full system-level understanding of complex technologies.

Within the R&D team, you will be responsible for the verification and validation of complex systems. Your scope will gradually extend from software toward system integration and hardware, including occasional on-site activities at customer locations.

Your responsibilities

• Contribute to defining verification and validation criteria, as well as test benches for components, subsystems, and system integration

• Follow and participate in product integration, progressively validating that developed subsystems meet specified requirements

• Perform testing activities and technical investigations in case of non-conformities, and propose appropriate solutions

• Act as a technical interface with cross-functional engineering teams

• Manage requirements traceability

• Contribute to system architecture files and various technical documentation

• Support the development of a system engineering methodology within the R&D team

Profile required

• 3 to 5 years of experience in software development, testing, or validation, on embedded systems, industrial equipment, or complex machines

• A strong software foundation on technical products, equipment, or systems

• A willingness to expand beyond this scope toward system-level and hardware understanding

• Strong analytical skills when investigating technical issues and structuring problem-solving approaches

• Solid technical writing abilities

• Comfortable working with a wide range of technical stakeholders

• Operational technical English

Benefits

• Regular opportunities for team bonding and social events (annual seminar, team lunches, group games, sports activities, etc.);

• 100% employer-covered health insurance;

• A bonus scheme rewarding both collective and individual performance;

• Joining Cailabs also means having the assurance that everything will be put in place to help you perform, grow, and take on new challenges.

Required languages

• English - Level Intermediate

Réf: e1273c2b-3bf7-4e7b-b8bf-a1c92790577f

Apply

Share job

Our Job Offers

• [

Optical R&D Engineer F/H

• Permanent contract

• Full time

• Rennes

I apply

](https://rejoignez.cailabs.com/en/offers/optical-rd-engineer-5da81a)

• [

Configuration Management Engineer F/H

• Permanent contract

• Full time

• Rennes

I apply

](https://rejoignez.cailabs.com/en/offers/configuration-management-engineer-1d0017)

• [

Magasinier.ère F/H

• Permanent contract

• Full time

• Rennes

I apply

](https://rejoignez.cailabs.com/en/offers/magasinierere-75ee49)

• [

Assistant.e Comptable F/H

• Permanent contract

• Full time

• Rennes

I apply

](https://rejoignez.cailabs.com/en/offers/assistante-comptable-c90bce)