Website Cocoon
Green steel, clean cement - Low-carbon construction materials for the builders of tomorrow
About Cocoon
At Cocoon, we’re developing low-carbon construction materials for the builders of tomorrow. Steel and cement account for nearly 15% of global CO₂ emissions, and decarbonising these industries requires completely new approaches to mix design, testing, and implementation.
We’re now building our in-house concrete capability so we can qualify SCMs, validate performance against industry standards, and support deployment of our technology at pilot and demo-scale. To do this, we’re establishing a fully equipped concrete laboratory in London — and we’re looking for a Concrete Technologist to help make it happen.
The Role
We’re looking for a Laboratory Technician to support our researchers, manage day-to-day lab workflow, and operate and maintain a wide range of analytical equipment. You’ll help prepare samples and run characterisation methods, including XRD, PSA, ICP-OES, TGA, and isothermal calorimetry. You’ll be responsible for ensuring the lab remains organised, safe, and fully stocked.
You will also support the installation and commissioning of new sample preparation and analytical capabilities. By keeping equipment operating smoothly and data flowing reliably, you’ll play a central role in enabling Cocoon to accelerate research and development.
Responsibilities
Laboratory Operations
- Supporting researchers with their critical workstreams.
- Sample preparation for material characterisation.
- Conducting material characterisation work in the lab (XRD, PSA, ICP-OES, TGA, isothermal calorimetry).
- Ensuring the lab is tidy, inventory is up to date, and consumables are restocked.
- Managing QC processes from industrial trials.
- Overseeing the installation, troubleshooting, and commissioning of lab equipment.
- Operating and maintaining small-scale furnaces and Cocoon’s lab-scale prototype granulators.
Data Management
- Developing a pipeline or dashboard for tracking analysis that is visible to the team.
- Archiving material characterisation data effectively so all users can access it.
- Data generation and cataloguing on Cocoon’s databases.
- Generating data to support the commercial activities of the business
You’ll Succeed In This Role If You…
- Bring experience in material characterisation from steel, cement, or a related field such as battery technology.
- Have previous technician or lab manager experience.
- Are comfortable organising large data sets.
- Have an eye for detail and follow processes to the letter.
- Thrive in a fast-moving, hands-on laboratory environment.
What We Offer
- A central role in scaling Cocoon’s laboratory capabilities.
To apply for this job please visit jobs.recruit.charliehr.com.