Cell Test Engineering Intern (Summer 2025)

Joby Overview

Located in Northern California, the team at Joby Aviation is driven by our goal of creating an affordable, all-electric air transportation system. Imagine a piloted air taxi that takes off vertically, then quietly carries you and your fellow passengers over the congested city streets below, enabling you to spend more time with the people and places that matter most. Since 2009, our team has worked steadily to make this dream a reality. We’ve designed and tested many generations of prototype aircraft capable of serving in a network of electric air taxis. We’re looking for talented, committed individuals to join our team as we push onwards toward certifying the Joby aircraft with the Federal Aviation Administration, scaling our manufacturing, and preparing to launch commercial service in 2025.

Overview

Joby Aviation is seeking a highly organized and passionate student to join our battery team. In this role, you will be working exclusively with the cell testing team to generate insight into the battery performance for VTOL electric aircraft. The Joby Aviation team is made up of extremely talented, hardworking, proactive, and hands-on individuals, operating in a very fast-paced and rewarding environment. We are looking to expand this team with like-minded individuals looking to make a mark in the transportation industry.

Responsibilities

• Conduct research and experiments on different batteries using cycling equipment.
• Occasionally complete cell teardowns for materials investigation.
• Conduct experiments or measurements for individual cells to characterize physical and electrochemical properties.
• Develop methods and tools to analyze data sets and communicate the key findings to multidisciplinary teams for product development.
• Work closely with the following teams:
• Equipment design team to facilitate project equipment requirements.
• Data Science team to consume and produce findings from large data sets.
• Lab Technicians to facilitate lab functions, operation, experiment setup, and monitoring.

Required

• Passionate and excited about cell/battery and EVTOL.
• Pursuing B.S. or above in Electrochemistry, Material Science, Chemical Engineering, or related engineering discipline.
• Heading into senior year of undergrad or final year of Master's/Ph.D. program 
• Knowledge of Li-ion cell chemistry and mechanisms.
• Experience with testing equipment such as battery cyclers, potentiostats, and electrochemical cells.
• Strong work ethic with an affinity for team-oriented work.
• Strong attention to detail, documentation, and implementation of operating procedures.
• Capable of balancing and prioritizing multiple tasks and projects.
• Capable of prioritizing safe practice in the workplace.
• Experience in relevant programming languages. (Python, MATLAB)

Desired

• Experience with cell teardowns and characterization techniques.
• Glove box or cell fabrication experience.
• Proficient at setting up and writing scripts for battery cycling equipment. (Maccor, Arbin, Neware, etc.)
• History of experiments to obtain data supporting a BMS and/or performance modeling of a cell level technology.
• Expertise in cell fabrication.
• Experience with large form factor cell/pack handling.
• Research / previous intern experience on Li-ion cell.
• Proficient in relevant programming languages. (Python, MATLAB)

EEO

Relocation Assistance: This position does not offer relocation assistance. Candidates must live in the immediate area or relocate at their own expense.

 

The pay range for undergraduate interns, which includes freshman to senior level students, is $20-32/hr. The pay range for graduate interns with a Bachelor, Master, and/or Ph.D. degree is $5,400-$7,500/month. Individual pay is determined by internship role, department, experience, job-related skills, and level of education.

 

Joby is an Equal Opportunity Employer.