About Epyr

Epyr is on a mission to decarbonize industrial heat. We are developing next-generation Thermal Energy Storage (TES) systems that enable industries to transition from fossil fuels to clean electricity. Our technology is designed to accelerate industrial decarbonization and support the reindustrialization of Europe.

Founded by:

• Bastien Oggeri, serial entrepreneur and co-founder of Innovafeed
• Léa Dardenne, former BCG partner specialized in energy and climate strategy

At Epyr, we operate by three core values: purposeful dreaming, relentless building, and excellence in execution.

Why Join Epyr

You will be part of a fast-growing team tackling one of the toughest climate challenges. You will work at the intersection of industrial technology, sustainability, and innovation, helping shape the future of clean heat.

Job description

We are looking for a highly motivated Process Engineer to join our team and contribute to the development, optimization, and deployment of our TES technology. This is a high-impact role with responsibilities spanning R&D, prototyping, and industrial-scale implementation.

What You'll Do :

• Design and optimize the core processes of Epyr's thermal energy storage systems
• Contribute to pilot projects on-site, from early-stage testing to full-scale deployment
• Analyze material properties and thermal behavior to enhance system performance
• Conduct simulations and performance analyses to guide technical improvements
• Collaborate with external partners on manufacturing, sourcing, and integration
• Document technical developments and contribute to internal knowledge sharing

Profile

• Master's degree from a top engineering school or university
• 1 to 5 years of experience in energy systems, industrial process engineering, or hardware prototyping
• Strong analytical and problem-solving skills, with attention to detail
• Ability to thrive in a startup environment: resourceful, adaptable, and hands-on
• Demonstrated passion for climate innovation and the energy transition
• Past experience with physical systems development, thermal modeling, or pilot testing is a strong plus