R&D Lab Intern - Fall 2025

About Electrified Thermal Solutions

Boilers, furnaces, and kilns are the engines of our industrial economy, providing heat to melt steel, form cement, and transform chemicals. But historically reaching this high-temperature heat required burning fossil fuels, making the industrial sector responsible for 25% of global greenhouse gas emissions. 

Electrified Thermal Solutions has a simple and massive goal: to electrify industry.  

To do this, we are building the Joule Hive™ thermal battery: an energy storage technology that converts and stores cheap, renewable electricity as high-temperature heat. Our vision is to mitigate gigatons of CO2 emissions per year by deploying the Joule Hive™ at every industrial furnace, turbine, boiler, and kiln. 

About the Role

Electrified Thermal is seeking an R&D Lab Intern to assist the R&D team’s work in the Medford, MA lab where we test our novel electrically-heating refractory bricks. Your role will be at the forefront of our development work to characterize and test our novel bricks which form the basis of the Joule Hive ™ Thermal Battery. Your work will tangibly deepen our understanding of this cutting-edge technology through varied and challenging test campaigns. You will report to the Materials Test Engineer.  

• Work with the R&D team to characterize and determine the performance limits of materials and designs in the Joule Hive™ thermal battery 
• Create and prepare refractory samples for testing, including mold design and fabrication, cutting, drilling, and grinding.  
• Support high temperature testing by running and maintaining high temperature furnaces and accompanying equipment including precision programmable power supplies and DAQs systems. 
• Support the development of new novel high temperature tests, including updating and adding new features to custom testing software written in Python, adding new instrumentation and wiring to existing testing setups. 
• Independently execute more focused projects to improve lab operations and reinforce our safety culture. 
• Meticulously document the experimental process from start to finish. 

• Current enrollment (or graduation within the last year from) a B.S./M.S. in Engineering or related fields. 
• Comfort working with your hands daily in the lab, and safely using power tools such as saws, drills, and grinders.  
• Basic experience in Computer-Aided Design (CAD) software, such as SolidWorks or OnShape. 
• Basic experience with Python or similar languages for scripting and data visualization. 
• Ability to work both independently and in a team environment with excellent communication and interpersonal skills.  
• Demonstrated commitment to adhering to workplace safety procedures and contributing to safety culture  
• An enthusiastic approach and resilience in the face of challenging technical problems 
• Experience with FEA and/or thermal modeling using COMSOL Multiphysics or Ansys modeling software is a plus

• Flexible start and end dates 
• Collegial, fast-paced, and fun environment  
• Competitive hourly rate
• Five days paid time off (in addition to company holidays)

What We Value

As a growing startup, we value executing through uncertainty and moving toward the problem. We also recognize that structure is support and adheres to processes to keep us safe and make us effective. Electrified Thermal can only achieve our goals if we go together, and value and proactively draw on the diverse backgrounds, skill sets, and perspectives of our growing team. Each day, we work to live sustainably, not only to build a sustainable future but also to create an environment where our employees lead full multi-dimensional lives. 

Electrified Thermal believes people are the catalyst for success and seeks those with diverse backgrounds and perspectives to maximize our impact. We know great solutions and innovation can come from anywhere and prioritize hiring people with the ability to work on diverse teams and with a diverse range of people. Electrified Thermal is committed to building a diverse and inclusive team and work environment and we are proud to be an equal opportunity employer.  All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status, or any other characteristic protected by law.