---
title: 'Systems Integration and Test Engineer Intern (Winter 2027) at Peak Energy'
canonical: 'https://feeny.ai/job/systems-integration-and-test-engineer-intern-winter-2027-peak-energy-burlingame-k9r0eyft16z6'
type: 'job'
last_seen: '2026-09-09'
---

# Systems Integration and Test Engineer Intern (Winter 2027) at Peak Energy

- **Company:** Peak Energy
- **Location:** Burlingame, CA
- **Posted:** 2026-07-13
- **Last confirmed live:** 2026-09-09
- **Apply:** https://peakenergy.com/get-in-touch/careers/jobs?job_id=5185852007&gh_jid=5185852007

## Job description

Peak Energy

Job Title: Systems Integration and Test Engineering Intern

Location: Burlingame, CA

Department: ESS Engineering

Reports To: Senior Manager, Test Engineering

Position Type: Internship (Winter 2027 Term)

## About Peak Energy

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.

About the Role – Systems Integration and Test Engineering Intern

This intern will support integration testing and functional verification of Peak Energy's energy storage systems, working across BMS, inverters, and other systems from batteries to power electronics.

As Peak Energy scales its ESS testing infrastructure, this role helps build out the benchtop and HIL test capabilities needed to validate systems ahead of production.

You'll work closely with firmware, design, and simulation teams, gaining exposure to the full test lifecycle – from procedure development to execution to reporting.

This role suits a hands-on, curious engineer who's eager to learn by doing and comfortable navigating ambiguity in a fast-moving startup environment.

## What You'll Do (Responsibilities)

- Support functional testing of BMS, inverters, and other systems across Peak Energy's energy storage product
- Help design, set up, and run benchtop and HIL test setups for validation of the BMS
- Develop and execute test scripts to support test automation efforts
- Assist in developing test plans and procedures across electrical and mechanical systems
- Interface with design, simulation, and manufacturing engineering partners to inform design decisions
- Help analyze test data and document findings for engineering teams
- Support troubleshooting and diagnosis of issues identified during testing
- Participate in a culture of rapid prototyping and testing

## What You'll Bring (Qualifications)

- Pursuing a Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or a closely related field
- Experience interfacing with microcontrollers and writing scripts for functional testing
- Basic familiarity with electromechanical test setups
- Proficiency in Python or similar
- Strong analytical and problem-solving skills
- Comfortable working hands-on with hardware and lab equipment
- Passion for renewable energy, sustainability, and driving positive environmental impact through technology innovation
- Eligible to work in the U.S.

## Preferred Qualifications

- Exposure to high voltage battery and power electronics systems
- Familiarity with battery management systems (BMS) architecture
- Coursework or project experience with hardware-in-the-loop (HIL) test systems

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 - Move fast but understand why. Focus on the goal, don't sacrifice quality.
- Mission Over Self - It's about the greater good; confident humility. Take ownership and accountability.
- Face the Brutal Truth - Transparency, honesty, big picture curiosity. Fearless decision making.
- Be a Good Person - Kindness, collaboration and teamwork.

## Compensation & Benefits

The hourly rate for this role is $35/hr. 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.

## About Peak Energy

## Company Overview
- **One-liner**: Peak Energy designs and deploys next-generation sodium-ion energy storage systems for grid-scale and AI data center applications, offering the world’s first fully passive, drop-in compatible battery storage solution.
- **Entity Type**: Private (Series A – $55M raised in June 2024)
- **Headquarters**: Burlingame, California, USA
- **Founded**: 2023
- **Founders**: Landon Mossburg (CEO), Paul Durkee (CTO), Brandon Kelly (Chief Scientist)

## Core Business
- **Primary industry**: Energy storage / Battery technology / Grid infrastructure
- **Target customers**: Utilities, Independent Power Producers (IPPs), AI data center operators, grid operators (B2B, enterprise)
- **Mission or purpose**: Deliver the lowest cost electron to the grid, enabling the next era of AI, electrification, and renewable power through abundant, reliable, and domestically manufactured energy storage.

## Products & Services
- **Peak Passive Grid‑Scale Storage System**: A sodium‑ion battery energy storage system (BESS) designed for 20+ year life with zero scheduled maintenance, no augmentation, and passive thermal management. Drop‑in compatible with existing BESS installations, requiring no new installation crews or EMS integration playbooks. Achieves higher round‑trip efficiency (more power to GPUs) and lower total cost of ownership (claimed $75/kWh savings through minimal opex). Fully 48E ITC compliant. Deployed in partnership with nine of the largest U.S. IPPs and utilities.

## Market Standing
- **Valuation/Market Cap**: Not disclosed
- **Key Metric**: Total funding of **$65M** ($10M seed in October 2023, $55M Series A in June 2024)
- **Notable Investors/Partners**: Investors not publicly named; key partners include **GM** (partnership to scale next-gen energy storage), **Jupiter Power** (4.75 GWh contract signed November 2025), and nine of the largest IPPs/utilities in the U.S.
- **Growth Signals**:
  - First grid‑scale sodium‑ion system deployed in Colorado (August 2025) – world’s first passively cooled system.
  - Over 10 months of operating deployments; 9‑customer pilot completed.
  - **6+ GWh contracted through 2030** (including 4.75 GWh with Jupiter Power).
  - Scaling plan: 5 deployments in 2026, 1 GWh in 2027; U.S. factory (4 GWh capacity) planned for Q1 2027 SOP.
  - Signed agreement to deploy MISO’s first sodium‑ion grid storage battery (March 2026).

## Competitive Advantages
- **Lowest total cost of ownership** – passive cooling eliminates fan/chiller failures, no scheduled maintenance, no augmentation, reducing opex significantly.
- **Sodium‑ion chemistry** – uses abundant, domestically available materials, reducing supply chain risk and improving safety.
- **Drop‑in compatibility** – works with existing BESS infrastructure, lowering adoption barriers for utilities and IPPs.
- **Vertically integrated U.S. manufacturing** – from cell to delivered project, strengthening domestic supply chain and creating jobs.
- **Proven reliability** – 99.999% uptime target; operating deployments since mid‑2025.

## Strategic Focus
- **Scale up manufacturing** – build a 4 GWh U.S. factory (2027) and expand deployment pipeline toward 1 GWh/year.
- **Target AI data centers** – collapse 4‑7 year interconnect queues by providing immediate, reliable power for GPU clusters (claims 441 trillion additional tokens/year over 20‑year project life).
- **Long‑term integration** – eventually move into generation, transmission, and distribution (phase 3 strategy post‑2028).
- **Deepen utility/IPP partnerships** – continue signing long‑term offtake contracts (already 6+ GWh through 2030).

## Why Work Here
- **Culture & values**: “Be a good Person” is a core value; emphasis on purpose‑driven work, solving foundational energy problems, and moving fast with real‑world impact.
- **Benefits**: Comprehensive medical/dental/vision, 401(k) with company match, flexible PTO, generous parental leave, employer‑paid life/disability/income protection, mental health & wellness programs, free lunches, pet‑friendly offices, free EV charging (Burlingame office), cell phone reimbursement, commuter benefits.
- **Locations**: Offices in Burlingame (CA) and Denver (CO); hybrid/remote policy not explicitly stated but on‑site presence expected for engineering and manufacturing roles.
- **Growth trajectory**: Headcount has doubled over the past year; company is in rapid scaling phase (from pilot to commercial deployments). Open roles include engineering, manufacturing, finance, and sales (27+ positions listed on Greenhouse and LinkedIn as of mid‑2026).
- **Team**: Core team assembled from Tesla, Northvolt, Enovix, Lyft, Uber, Solid Power; strong technical depth in battery and energy systems.

## Sources
1. [peakenergy.com – About](https://peakenergy.com/company/about)
2. [peakenergy.com – Careers](https://peakenergy.com/get-in-touch/careers)
3. [LinkedIn – Peak Energy](https://www.linkedin.com/company/peakenergytech)
4. [CB Insights – Peak Energy](https://www.cbinsights.com/company/peak-energy-2)
5. [PR Newswire – Peak Signs 4.75 GWh Contract with Jupiter Power (Nov 2025)](https://peakenergy.com/)
6. [PR Newswire – Peak Signs Agreement to Deploy MISO’s First Sodium-Ion Grid Storage Battery (Mar 2026)](https://peakenergy.com/)
7. [Bloomberg – Peak Energy Secures $55 Million (Mar 2026)](https://peakenergy.com/)

## Other roles at Peak Energy

- [IT System Administrator (Sacramento)](https://feeny.ai/job/it-system-administrator-sacramento-peak-energy-sacramento-8y3eabpgvbh1) — Sacramento, CA
- [IT System Administrator (Burlingame)](https://feeny.ai/job/it-system-administrator-burlingame-peak-energy-burlingame-5ezksf45kry1) — Burlingame, CA
- [Global Supply Chain Management Intern (Spring 2027)](https://feeny.ai/job/global-supply-chain-management-intern-spring-2027-peak-energy-burlingame-k2bxw183zta1) — Burlingame, CA
- [Senior Sales Director](https://feeny.ai/job/senior-sales-director-peak-energy-burlingame-ca-or-broomfield-5wvmnkv7feet) — Burlingame CA OR Broomfield, CO
- [Automation Engineer Intern](https://feeny.ai/job/automation-engineer-intern-peak-energy-burlingame-bk4p845y9zx3) — Burlingame, CA
- [Head of Hardware](https://feeny.ai/job/head-of-hardware-peak-energy-burlingame-vky0rsv4b83a) — Burlingame, CA
- [Senior Cell Validation & Reliability Engineer](https://feeny.ai/job/senior-cell-validation-reliability-engineer-peak-energy-burlingame-3qmqm5rpdw0v) — Burlingame, CA
- [Controls & Automation Engineer](https://feeny.ai/job/controls-automation-engineer-peak-energy-burlingame-1ga3nxje5qxa) — Burlingame, CA
- [Sales Engineer](https://feeny.ai/job/sales-engineer-peak-energy-burlingame-california-or-broomfield-zthqmvwhwjse) — Burlingame California OR Broomfield, CO
- [Manufacturing Equipment Engineering Intern](https://feeny.ai/job/manufacturing-equipment-engineering-intern-peak-energy-burlingame-byqwk3yhj5df) — Burlingame, CA