About florrent

florrent is a Massachusetts-based, minority-owned deep-tech company innovating to design and build the next generation of high energy density ultracapacitors that will stabilize electrical grids and address critical bottlenecks for the adoption of renewable energies, electric vehicles, and net-zero buildings. Our ultracapacitors are manufactured in Western Massachusetts from abundant and regenerative hemp biomass, grown domestically in the US by Black and Indigenous farmers.

About the Culture

At florrent, we are passionate about bringing the benefits of a decarbonized future to everyone. That passion drives everything we do, and how we do it. We are building a team propelled by ambitious goals, and committed to seeing them come to reality…to reach those goals, we need to stay connected to what motivates us, and always be real about the challenges ahead. 

If that sounds like you, let’s talk! Our careers page is always being updated, but if you find yourself drawn to our mission while none of our current postings are quite the right fit, you can always reach out directly on our Home Page to start a conversation.


florrent is looking for an R&D engineer, with experience working in a wet lab setting running materials processing and characterisation, to help us build and optimise the energy storage technology in our next-generation of ultracapacitors. In this role, you will

  • Work in a small, interdisciplinary R&D team to run processes, experiments, and workflows that will help florrent quickly iterate towards commercialisation of our first product.

  • Help to map ultracapacitor prototype-scale innovation into production scale quality

  • Gather data to allow R&D efforts to quickly converge on commercialisable innovation

Required Qualifications

  • BS in Chemistry, Chemical Engineering, Biology, Mechanical Engineering, or related fields.

  • 2+ years of experience in industry laboratories performing research

  • Experience mapping R&D-level lab innovation into scaled, semi-automated processes

  • Experience in running and interpreting results from physical characterisation methods such as SEM, XRD, BET, Raman, FT-IR, liquid chromatography, or mass spectrometry

  • Excellent and proactive communication skills

Desired Qualifications

  • Experience creating and testing electrode or electrolyte formulations for energy storage technologies

  • Hands-on experience with electrochemical testing methods such as galvanostatic charge-discharge, cyclic voltammetry, and EIS

  • Experience working with high-voltage systems