Location: Paris-Saclay (LSCE)
Start date: ASAP
Contract: Full-time
Language: English required, French a plus (not mandatory)
Mission / role summary: We are looking for a Marine Biologist with at least 3 years of research or professional experience (industry or PhD level), specialized in algae and/or coral systems, to join our growing R&D team. Based at the Laboratoire des Sciences du Climat et de l’Environnement (LSCE) in Paris-Saclay, you will work closely with our Head of Science and interdisciplinary team to develop and optimize biological systems at the core of Bloomineral’s technology. This is a hands-on role, ideal for someone who enjoys experimental work, data-driven decision making, and contributing directly to a technology moving from lab to industry.

Key Responsibilities

• Cultivation of marine macroalgae and/or coral-inspired biological systems

• Optimization of physico-chemical culture conditions (pH, alkalinity, nutrients, light, temperature, etc.)

• Seawater analysis, including pH, alkalinity, DIC, major and trace elements

• Monitoring biological growth, health, and reproduction cycles

• Design and improvement of experimental protocols and measurement tools

• Data collection, processing, and interpretation to guide process optimization

• Collaboration with geochemists and materials scientists on biomineralization workflows

  Your work will directly influence the robustness, scalability, and performance of our biological systems.

What We’re Looking For

• PhD or minimum 3 years of professional research experience in marine biology, algal biology, coral biology, or related fields

• Strong hands-on experience with aquatic biological systems

• Solid understanding of marine chemistry and experimental systems

• Ability to work autonomously, with rigor and curiosity

• Fluent in English (working language of the team)

• Excellent communication skills: ability to document protocols, present to auditors / external stakeholders, interface across teams.

• Highly self-driven, hands-on, capable of working at pilot / field scale under non-ideal conditions.

Nice to have:

• Experience with coral resilience, calcification, or biomineralization

• Familiarity with climate or carbon-cycle related research

• French language skills

• Experience in interdisciplinary or startup environments

Why Join Bloomineral

• Work on science that matters. Your research directly contributes to a technology that is changing the materials industry.

• See your work move beyond the lab and publications. Your work translates into real, innovative industrial impact.

• Be part of a small, fast-moving team where your work truly matters

• Work in a world-class research environment, based at Paris-Saclay within LSCE, one of Europe’s leading climate and Earth-system science labs.

• A culture that values rigor, initiative, and learning by doing

We care more about curiosity, rigor, and drive than about checking every box. If our mission resonates with you but your profile doesn’t match every single line above, apply anyway. We’re building a diverse, thoughtful team and we know great people don’t all look the same on paper. If you’re excited about turning carbon into materials the world can build with, we’d love to hear from you.