Your JOB

R&D Material Engineer M/W (Lille, France)


We are looking for our R&D Material Engineer in our Lille HQ. As part of the R&D team, you will develop and manage innovative materials solutions meeting the customers specifications.

Your missions:

  • Analyze needs to define new customer expectations
  • Identify new innovative materials/components and associated processes for their implementation
  • Performs technical feasibility – performance prediction, risk analysis, industrial feasibility
  • Defines and follow validation plan (tests protocols) including request for new tests
  • Manages prototype/samples production
  • Prepares design reviews and gate reviews. Validates gate reviews packages
  • Characterize materials to establish their specific properties (mechanical, chemical, physical) and qualify them by tests on samples
  • Capitalizes acquired knowledge and writes design guides
  • Support production units: audit, process quality improvement, KPI monitoring 
  • Search for external technical partnerships (local and abroad)


You hold a Master in material engineering and you have a minimum 5-year experience in polymer material development.

You have…

a technical knowledge of polymer testing, simulation, prototyping, polymer processing and characteristics.

good relational and writing skills, with ability to adapt, prioritize and self-manage. With a capacity for synthesis and a strong critical mind, you are proactive, creative and innovative.

You are…

fully proficient in MS Office pack

fluent in English

and of course, you have and a deep interest in renewables and clean energies.


  • Work for the pioneer and leading floating solar company
  • The opportunity to have a direct impact on the company activities
  • A dynamic working environment, where people can express their potential and talent
  • The ability to take decisions and initiate change
  • Diverse, multicultural teams
  • The business area of the Haute Borne, located 15 minutes by subway from Lille station and city center
  • Parking reserved for staff
  • Free bicycles rental
  • Lunch vouchers
  • Incentive agreement
  • Full time permanent contract (39h), available as soon as possible
  • Salary: according to profile and experience


At Ciel & Terre, we are deeply engaged in the development of the fast-evolving and international floating PV market, which implies experience and a high-level of expertise, and we have the ambition to remain leaders and go further to realize its potential.

Working at Ciel & Terre means something for each of our co-workers. As an innovative and eco-friendly company, we share strong human qualities and values in connection with the energy transition. We give every employee the opportunity to express his/her potential by providing autonomy and encouraging initiative among dynamic multicultural teams.


Your application will be automatically addressed to our HR manager – Ms Fanny HERMANT, in charge of the recruiting process.

Please complete your application with a short message in English stating your goals and motivations (instead of a cover letter).

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