Process / Mechanical Engineering Intern

Location: Paris-Saclay (LSCE)

Start date: July 2026

Contract: Internship

Language: English required, French a plus (not mandatory)

About Bloomineral

Bloomineral is building a carbon-negative materials platform based on a biomineralization process.

We take CO₂, industrial waste, and seawater and transform it into solid mineral forms that can be used in industrial materials, replacing emissions-intensive inputs with carbon-storing alternatives.

We’re an early-stage team working based primarily at LSCE in Paris-Saclay. Our current focus is simple: make the science work in real systems, and make it scale.

What you’ll do

Help turn our systems into something that can scale.

You’ll support the design, modeling, and operation of our pilot systems, working on reactors, flows, and control systems. The focus is on making systems that are not just functional, but stable, measurable, and ready for scale.

You’ll work within our R&D team to help build physical systems with measurement and control.

Responsibilities

• Support design of reactors and fluid systems (piping, pumps, valves, instrumentation)
• Contribute to modeling (CFD, hydrodynamics, mass and heat transfer)
• Assist in automation and control (sensor integration, data acquisition, feedback loops)
• Help prepare process documentation (PFDs, P&IDs, system layouts)
• Participate in commissioning, debugging, and improving pilot systems

Profile

• Engineering student (mechanical, chemical, process, or related field)
• Strong fundamentals in fluid mechanics, thermodynamics, and transport phenomena