Joby Aviation · 2 days ago
Cell Testing Engineer
San Carlos, CA
Full-time
Onsite
Mid, Senior Level
$98K/yr - $167K/yrJoby Aviation is an innovative company focused on developing electric air taxis. They are seeking a Cell Testing Engineer to enhance their cell testing processes, involved in performance metrics development, test protocol creation, and data analysis, while collaborating with various engineering teams.
AerospaceAir TransportationElectric VehicleTransportation
Responsibilities
Develop novel and targeted methods of characterizing cell performance as they relate to aircraft performance and regulatory requirements
Define comprehensive performance criteria for new cell designs, encompassing electrochemical, mechanical, and safety requirements, in partnership with internal engineering teams
Own test planning and execution for validation of new cell technologies, root-causing of degradation/failure mechanisms, and battery algorithm certification
Actively monitor data, trouble-shoot tests and equipment, and use data manipulation and visualization skills (e.g., Python, MATLAB) to effectively convey complex model and test results to fellow engineers and cross-functional teams
Process data for parameter estimation and develop simulations and models to conduct sensitivity studies for cell design relative to aircraft performance metrics such as range, lifetime, and product value
Synthesize complex technical test results into clear, program-level impacts and support key engineering decisions by acting as the primary point of contact across internal and external organizations
Qualification
Required
MS or above in materials science, chemistry, electrical engineering, or related field
Experience with large-scale, structured li-ion testing operations and programming cell cyclers (e.g. Arbin, Maccor)
Strong critical reasoning mindset and capable of interpreting and making testing decisions based on first principles and academic research
Experienced in statistical analysis and data visualization with great written, verbal, and presentation skills
Deep understanding of the relationship between physical cell design parameters and the inputs/outputs of mathematical models
Willingness to get hands dirty and work with team-members on all levels of test execution, whether it be performing fixturing modifications or performing calibrations
Preferred
Doctoral degree in a relevant engineering or science field
Experience in lithium-ion cell design, cell qualification, cell manufacturing, battery module design, and/or supply chain
Experience in developing empirical or physics-based models of dynamic systems, preferably including lithium-ion batteries and their aging mechanisms
Understanding of cell failure mechanisms and experience with abuse testing methods
Strong background in Python or other language for data processing and visualization
Familiarity with data pipelines and querying relational databases such as SQL
Sensing and data acquisition knowledge
Benefits
Paid time off
Healthcare benefits
A 401(k) plan with a company match
An employee stock purchase plan (ESPP)
Short-term and long-term disability coverage
Life insurance
And more
Company
Joby Aviation
Joby Aviation is an aerospace transportation company developing electric aircrafts.
Founded in 2009
1001-5000 employees
H1B Sponsorship
Joby Aviation has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2022 (1)
Funding
Current Stage
Public CompanyTotal Funding
$3.02BKey Investors
Toyota MotorGovernor’s Office of Business & Economic DevelopmentBaillie Gifford
2025-10-07Post Ipo Equity· $591M
2025-05-27Post Ipo Equity· $250M
2024-10-24Post Ipo Equity· $202M
Leadership Team
Eric Allison
Chief Product Officer
Gregory Bowles
Head of Government Affairs
Recent News
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2026-01-03
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2025-12-29
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2025-12-25
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