---
title: 'Staff Embedded Software Engineer at Peak Energy'
canonical: 'https://feeny.ai/job/staff-embedded-software-engineer-peak-energy-burlingame-rwwfnjfje47r'
type: 'job'
last_seen: '2026-11-11'
---

# Staff Embedded Software Engineer at Peak Energy

- **Company:** Peak Energy
- **Location:** Burlingame, CA
- **Posted:** 2026-11-06
- **Last confirmed live:** 2026-11-11
- **Apply:** https://peakenergy.com/get-in-touch/careers/jobs?job_id=5287603007&gh_jid=5287603007

## Job description

Staff Embedded Software Engineer, ESS

Location: Burlingame, CA (Onsite)

Department: ESS Engineering

Position Type: Full-time

Reports to: Senior Manager, Software Engineering

## 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 Role

Peak Energy is looking for an Embedded Software Engineer to to design, develop, and deploy firmware for our grid-scale battery energy storage systems. In this role, you'll work closely with hardware and systems engineering teams to develop reliable, real-time embedded software, validate hardware designs, and support products from early prototypes through commercial deployment. You'll play a key role in shaping our embedded software architecture as we scale our technology and bring new energy storage solutions to market.

What You'll Do:

- Design and implement real-time, C++, RTOS-based firmware targeting microcontrollers.
- Understand, code, and use microcontroller hardware to meet functional safety requirements.
- Create firmware for embedded prototypes to validate hardware design choices and accelerate firmware development.
- Verify and support the integration of your code.
- Assist with the definition of requirements.
- Support products deployed to the field.
- Participate in hardware and software design reviews.
- Adhere to modern disciplined development practices such as Clang-based linting, consistent formatting, thoughtful naming, and clear commenting.

What You’ll Bring (Minimum Qualifications):

- Extensive experience writing firmware and software code in C++ or at least one similar systems programming language
- Have shipped at least one commercial or industrial hardware product.
- A degree in science, engineering, or a related field.
- 8+ years of professional engineering experience.
- Experience writing firmware for real-time embedded systems.
- Experience designing complex software that coordinates several disparate functions.
- Experience using Linux as a development environment and test platform.
- Experience configuring build tools such as CMake/Make.
- Experience with Git, GitHub, Dagger, Docker, or similar CI tools.
- Eligibility to work in the United States.

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.

## Compensation & Benefits

The salary range for this role is $190,000 - $260,000, with actual pay varying based on work location, experience, and skills. Our competitive benefits package includes:

- Flexible time off
- Comprehensive medical, dental, and vision coverage
- Strong 401(k) plan
- Equity opportunities
- Many great work perks

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

- [DevOps Engineer](https://feeny.ai/job/devops-engineer-peak-energy-burlingame-m7yr1p190seb) — Burlingame, CA
- [Electrical Design Engineer Intern (Spring 2027)](https://feeny.ai/job/electrical-design-engineer-intern-spring-2027-peak-energy-burlingame-nq86zmz6mebs) — Burlingame, CA
- [Test Engineer Intern, ESS (Summer 2027)](https://feeny.ai/job/test-engineer-intern-ess-summer-2027-peak-energy-burlingame-jnwhp3am8nky) — Burlingame, CA
- [Systems Integration and Test Engineer Intern (Summer 2027)](https://feeny.ai/job/systems-integration-and-test-engineer-intern-summer-2027-peak-energy-burlingame-9q0ddg5pmnaq) — Burlingame, CA
- [Supplier Industrialization Engineer Intern (Spring 2027)](https://feeny.ai/job/supplier-industrialization-engineer-intern-spring-2027-peak-energy-burlingame-kwtvw7a894fp) — Burlingame, CA
- [Senior Manager, Communications](https://feeny.ai/job/senior-manager-communications-peak-energy-burlingame-d8k1vkgxz19a) — Burlingame, CA
- [Software Engineer (Backend)](https://feeny.ai/job/software-engineer-backend-peak-energy-burlingame-p9kz8bctmfc6) — Burlingame, CA
- [Technical Program Manager, ESS](https://feeny.ai/job/technical-program-manager-ess-peak-energy-burlingame-f31qhzctht8a) — 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