Energy Team Intern

One-line pitch

Join Epyr’s Energy team to build AI-powered software and production tools that help operate, analyze, and scale industrial decarbonization in the real world.

Epyr is a French climate-tech company on a mission to decarbonize industrial heat — one of the largest, hardest-to-abate sources of CO₂ emissions in Europe.

We develop next-generation Thermal Energy Storage systems that convert low-carbon electricity into reliable, high-temperature industrial heat. Our ambition is simple: make clean heat cheaper, more flexible, and more scalable than fossil fuels.

Founded by experienced entrepreneurs and energy/climate leaders, Epyr operates at the intersection of:

• Energy markets — spot, intraday, flexibility, grid services

• Industrial systems — high-temperature processes, reliability constraints, deployment at scale

• Software & quantitative modeling — optimization, simulation, pricing, dispatch algorithms

• Climate impact — direct contribution to European industrial decarbonization

We are building for people who want to solve real-world physics, economics, and systems problems.

The Energy team relies on software to run real analyses, support operational decisions, and make the team faster every week.

As an intern, your mission will be tech-first: build and improve internal tools used in a professional environment, connected to real production systems and live operational needs. You will also help identify where AI can create leverage for the team — from analysis automation to workflow acceleration and better knowledge access.

Depending on your profile and the team’s priorities, your work may include:

• Build and improve internal software tools used by the Energy team in day-to-day work

• Contribute to AI-powered workflows, assistants, automations, or analysis tools that make the team more efficient

• Work on Python-based services, notebooks, data pipelines, APIs, dashboards, and internal applications

• Connect prototypes to real production constraints: reliability, usability, documentation, maintainability, and deployment

• Investigate AI tools and use cases, test them pragmatically, and turn the useful ones into team workflows

• Support energy-related analyses when needed, without being expected to be the “energy market expert”

This is not a generic “energy transition internship.” It is a software-builder role inside a deeptech company, with real users, real data, and real production constraints.

You will get:

• Real ownership — your tools can become part of the team’s daily operating system

• Production exposure — work beyond toy prototypes, with reliability, deployment, and maintainability in mind

• AI leverage — identify and build practical AI use cases that save time and improve decision quality

• High learning density — software, data, AI, energy systems, and climate-tech scale-up

• Close collaboration with operators — direct feedback from the Energy team and other internal users

• A strong potential path to full-time — for exceptional interns, the internship can convert into a permanent role

You are likely a final-year student or gap-year student from a top engineering school or quantitative university program, such as École Polytechnique, Mines Paris, Centrale Supélec, Ponts,

You have:

• Strong quantitative and analytical skills

• Solid foundations in applied mathematics, physics, engineering, economics, energy systems, or computer science

• Good Python skills, or the ability to become productive quickly

• A structured problem-solving approach

• Strong written and oral communication in French and English

• Genuine interest in energy transition, industrial systems,…