Electrical Design Engineer Intern (Spring 2027)

Peak Energy

Job Title:

Electrical Design Engineer Intern (Spring 2027)

Location:

Burlingame, California

Department:

ESS Engineering

Reports To:

Senior Power Electronics Engineer

Position Type:

Full-time

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, SunPower, and Fluence. We are backed by strategic investment and product partners including TDK Ventures, Eclipse Ventures, and GM Ventures.

We recently announced America's first sodium-ion grid storage factory in Sacramento with production starting Q1 2027, and over $1B in signed customer commitments including Jupiter Power and Energy Vault.

About the Job:

We are looking for an Electrical Engineer Intern to support the design, development, and validation of electrical systems across our energy storage platforms, from battery systems to power electronics and control hardware. This role will work closely with design, firmware, and test teams to understand system requirements, assist with hardware development, support lab validation, and contribute to engineering improvements.

Through hands-on engineering work, you will play a key role in supporting product development and informing design decisions. 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 Spring 2027.

Responsibilities:

• Support development and validation of electrical systems across our energy storage products
• Assist with schematic development, component selection, and electrical design activities
• Support board bring-up, lab testing, and debugging of electrical and power electronic subsystems
• Collaborate with cross-functional engineering teams to ensure design integrity and continuous improvement
• Collect, analyze, and interpret electrical test data to support engineering decisions
• Troubleshoot electrical and integration issues using standard lab equipment
• Assist in development of test procedures and validation plans for electrical hardware
• Support prototype builds and rapid hardware iteration cycles
• Maintain detailed documentation of designs, tests, analyses, and corrective actions
• Interface closely with design, firmware, simulation, and manufacturing engineering partners
• 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:

• Pursuing a Bachelor’s degree in Electrical Engineering, Computer Engineering, or a related field
• Coursework or project experience in circuits, electronics, or power systems
• Strong understanding of electrical engineering first principles
• Experience working with hardware in laboratory or project environments
• Familiarity with common electrical lab equipment (oscilloscope, multimeter, power supplies)
• Exposure to data processing or analysis tools
• Excellent problem-solving skills, with the ability to think critically and act decisively
• Strong communication skills, with the ability to present technical information clearly
• Ability to work collaboratively in a fast-paced, dynamic environment
• Proactive ownership mindset with a strong sense of accountability
• Peak Energy is committed to building a diverse and inclusive workforce. We strongly encourage women, people of color, and individuals from underrepresented groups to apply. We value skills, potential, and perspective over specific credentials. If you’re excited about this role but your experience doesn’t look perfect on paper, we still want to hear from you.
• Our 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.