Electronics J-1 Sponsorship Jobs in Colorado

Peak Energy

Job Title: Cell Test Engineer Intern (Summer 2026)

Location: Broomfield, CO

Department: Cell Engineering

Reports to: Cell Applications Engineering Manager

Position Type: Intern, In-office

About the Company

Peak Energy is the first American venture to advance globally proven Sodium-Ion battery systems as the storage standard for the new era of renewable energy on a resilient grid.

Sodium-Ion is cheap, readily available and safe, making it the leading contender in a rapidly evolving market.

Our leadership team is powered by decades of expertise in scaling gigawatt-level innovation at world-class companies such as Tesla, Northvolt, Apple, Powin, Enovix, Zipline, Solid Power, and Fluence. We are backed by strategic investment and product partners such as TDK Ventures and Eclipse Ventures.

We are a team of engineers, operators, entrepreneurs, and partners driven by a shared ambition to set the new performance standard for renewable energy and grid resilience.

Why Join Peak Energy?

At Peak Energy, we are driving the next generation of energy storage with sodium-ion battery technology. As we scale our production and system integration efforts, quality is at the core of our success. This role is an opportunity to set the foundation for material and cell quality standards in a rapidly growing energy storage company.

If you're passionate about battery quality, material validation, and manufacturing excellence, we encourage you to apply and help us power a more sustainable future.

About the Job

Peak Energy is seeking a Cell Test Engineer Intern to support our cell testing lab. In this hands-on role, you will assist in the execution of battery testing protocols, data collection, and analysis under the supervision of senior engineers. This role is ideal for recent graduates and students pursuing degrees in mechanical engineering, electrical engineering, chemistry, physics, or related disciplines who are eager to gain hands-on experience in battery performance and reliability testing.

Key Responsibilities

• Set up and execute battery cell tests (incoming inspection, cycle life, capacity, etc.)
• Operate battery cyclers, environmental chambers, and data acquisition systems
• Monitor tests and log performance data with accuracy and attention to detail
• Assist in failure analysis and teardown inspections
• Perform basic data analysis and prepare reports or presentations
• Collaborate with engineers to iterate on testing protocols and contribute to product validation
• Follow lab safety protocols and maintain a clean workspace

Minimum Qualifications

• Undergraduate degree or currently pursuing a degree in Electrical/Mechanical/Chemical Engineering, Chemistry, Physics, Materials Science, or a related field
• Coursework or lab experience in electrochemistry, thermodynamics, materials, or energy systems preferred
• Strong analytical skills with proficiency in Excel; experience with Python or MATLAB is a plus
• Ability to work independently and in a team environment
• Enthusiasm for batteries, renewable energy, and hands-on technical work

Preferred Qualifications

• Data analysis automation and coding skills
• Experience in electrical testing

The pay rate for this role is $30/hour, with actual pay varying based on work location, experience, and skills. Join us to thrive in a supportive environment while making a meaningful impact in the energy sector!

At Peak Energy Technologies Inc., we believe that a diverse and inclusive workplace makes us a more capable, innovative, and competitive company. We welcome people who represent diversity in their backgrounds, ethnicities, cultures, and experiences. Peak Energy Technologies Inc. is an equal opportunity employer, aiming to reach our company's full potential by cultivating an inclusive workforce. We do not discriminate on the basis of race, color, ancestry, religion, national origin, sexual orientation, citizenship, marital or family status, disability, gender identity or expression, veteran status, or any other legally protected status.