Test Engineer Intern, ESS (Summer 2026)

About the Job: 

We are looking for a Test Engineer Intern to lead our testing and functional verification efforts for our energy storage systems, from battery to power electronics. This role will work closely with design and simulation teams to understand needs, develop procedures, set up and run and ultimately report on appropriate tests. Through testing, you will play a key role in informing the design direction of the product. This person is a self-starter who is hungry for knowledge and holds themselves and others to high standards.  Candidates should be available to begin employment in Summer 2026.

Responsibilities: 

• Conduct comprehensive testing of functional, high voltage, thermal, and mechanical systems across our energy storage product  

• Develop test strategies, plans, and procedures to evaluate key risks 

• Spearhead the design and acquisition of testing infrastructure  

• Collaborate with engineering teams to ensure design integrity and improvements.  

• Analyze complex test data, report findings, and drive system enhancements.  

• Identify, diagnose, and resolve intricate technical issues during testing.  

• Perform root cause analysis on system failures and develop corrective and preventive actions to address identified issues. 

• Drive innovation in testing methodologies and practices.  

• Interface tightly with design, simulation and manufacturing engineering partners to inform design decisions  

• Maintain detailed records of tests, analyses, and corrective actions. Prepare reports and presentations for internal and external stakeholders.  

• Drive and participate in a culture of rapid prototyping and automation 

• A great team spirit and get-it-done attitude. No job is too big or too small.  

Minimum Qualifications:  

• Bachelor’s degree in Mechanical Engineering, Electrical Engineering, Aerospace Engineering, or a related field.   

• Experience in test engineering, preferably within the battery storage or renewable energy sectors 

• Strong understanding of electromechanical engineering first principles  

• Proficiency in data processing & analysis tools 

• Excellent problem-solving skills, with the ability to think critically and act decisively.  

• Strong communication skills, with the ability to present complex technical information clearly to both technical and non-technical stakeholders.  

• Ability to work collaboratively in a fast-paced, dynamic environment. 
• Proactive ownership mindset with a strong sense of accountability. 
  

Peak Energy Core Values 

• Speed Through Focus: Prioritize what matters most and execute quickly without distractions. 

• Mission Over Self: Put the company's mission and team success ahead of individual interests. 

• Face the Brutal Truth: Embrace honesty, even when it’s uncomfortable, to make informed decisions. 

• Be a Good Person: Treat everyone with respect and integrity, fostering a positive and ethical work environment. 

The pay for this role is $30/hr.  Our competitive benefits package includes flexible PTO, comprehensive medical, dental, and vision coverage, a strong 401(k) plan, and equity opportunities. 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.

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.

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, SunPower, Fluence, and Enovix. 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.