R&D Scientist — Alkalinity & Carbonate Chemistry at Planeteers GmbH

Hamburg, Hamburg, Germany -

Full Time

Start Date

Immediate

Expiry Date

28 Sep, 26

Salary

0.0

Posted On

30 Jun, 26

Experience

2 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Carbonate Chemistry, Geochemical Modelling, Python, Mineral Dissolution, Reaction Kinetics, Laboratory Experimentation, Pilot Scale Development, Analytical Instrumentation, PHREEQC, Reaktoro, Data Analysis, Process Engineering, Sensor Calibration, Mass Transfer, Carbon Dioxide Removal, Technical Documentation

Industry

Climate Technology Product Manufacturing

Description

Your mission You will play a key role in developing and optimizing our carbon removal technology. Working at the intersection of chemistry, geochemistry, process engineering, and climate technology, you will design experiments, build and improve laboratory and pilot scale systems, and transform scientific insights into engineering solutions. In this role, you will: Design, execute, and evaluate laboratory experiments to investigate carbonate chemistry, mineral dissolution, and reaction kinetics. Build, operate, and optimize laboratory and pilot scale experimental setups. Operate, calibrate, and validate sensors and analytical instrumentation. Analyse experimental data using Python or similar scientific computing tools to support engineering decisions. Apply geochemical modelling tools such as PHREEQC, Reaktoro, or similar software. Collaborate closely with interdisciplinary teams to accelerate technology development. Document experimental work and communicate findings clearly across the team. Contribute to the development of technology that permanently removes CO₂ from the atmosphere. Your profile You enjoy solving complex interdisciplinary challenges with a hands on approach. Ideally, you have: A strong understanding of aqueous carbonate chemistry and the marine carbonate system. Knowledge of mineral dissolution processes, reaction kinetics, and mass transfer. Experience working with alkaline materials and their reaction kinetics in aqueous systems. Experience with geochemical modelling tools such as PHREEQC, Reaktoro, or similar. Experience planning, executing, and evaluating laboratory experiments. Proficiency in Python or similar scientific computing tools for data analysis. Excellent documentation and communication skills in English. It is a plus if you have experience with: Carbon dioxide removal, Ocean Alkalinity Enhancement, Enhanced Rock Weathering, carbon capture, or related climate technologies. Laboratory and pilot scale process development. Chemical sensors and analytical instrumentation, including pH, conductivity, dissolved CO₂, alkalinity, flow, pressure, and temperature sensors. Sensor calibration, validation, and uncertainty analysis. Design of experiments and statistical data analysis. Process engineering concepts such as reactor design, gas liquid mass transfer, and scale up. Working in interdisciplinary teams or startup environments. You are curious, analytical, and motivated by understanding why processes behave the way they do. You enjoy building and improving experimental systems, are comfortable working across laboratory experiments, pilot plants, and computational modelling, and combine scientific rigour with a pragmatic mindset. You take ownership of technical challenges and are excited to contribute to technologies that permanently remove CO₂ from the atmosphere. Data Protection Notice We process your data in accordance with applicable data protection laws. Your application will only be stored for as long as necessary, and inclusion in our talent pool is based on your consent, which you can withdraw at any time. Why us? What are we offering? An exciting job in a well-funded company with a real purpose A great team combining professional excellence with entrepreneurial start-up-spirit An impactful role with a high degree of autonomy & a flexible work set-up About us We remove CO₂ where it matters most and turn the tide for a liveable future We are the Planeteers, a climate-tech startup from Hamburg, Germany. We capture CO₂ in water and unleash the potential of the oceans as the largest carbon sink on our planet. Accelerated Weathering of Limestone (AWL) is a reaction in which CO₂ is „neutralized“ using limestone. This reaction occurs in nature all the time, everywhere and on a large scale. Time scales of natural limestone weathering are thousands of years. With our technology, the process can be extremely accelerated, so that large amounts of CO₂ can be rendered „harmless“ within minutes. Join and help us combatting climate change - become a Planeteer!

Responsibilities

Design and execute laboratory and pilot-scale experiments to optimize carbon removal technology focusing on carbonate chemistry and mineral dissolution. Analyze experimental data using scientific computing tools and collaborate with interdisciplinary teams to transform scientific insights into engineering solutions.