---
title: 'Full-Stack Software Engineer at Peak Energy'
canonical: 'https://feeny.ai/job/full-stack-software-engineer-peak-energy-burlingame-p9kz8bctmfc6'
type: 'job'
last_seen: '2026-10-14'
---

# Full-Stack Software Engineer at Peak Energy

- **Company:** Peak Energy
- **Location:** Burlingame, CA
- **Posted:** 2026-09-28
- **Last confirmed live:** 2026-10-14
- **Apply:** https://peakenergy.com/get-in-touch/careers/jobs?job_id=5250984007&gh_jid=5250984007

## Job description

Peak Energy

Job Title: Full-Stack Software Engineer Location: Burlingame, CA Department: ESS Engineering Reports to: CTO 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 Role - Full-Stack Software Engineer

Peak Energy is looking for a Full-Stack Software Engineer to help scale the software backbone behind our grid-scale battery storage systems. Our platform ingests, processes, and surfaces operational data from batteries deployed in the field — turning raw telemetry into the metrics our customers, operations team, and engineering team rely on every day. As Peak grows from pilot deployments to gigawatt-scale production in Sacramento, this platform becomes mission-critical.

This is a hands-on, full-stack role that spans application code, cloud infrastructure, and the tooling that ties it all together. You'll design and build data pipelines that calculate the metrics that define battery performance (round-trip efficiency, availability, cycle tracking), wire our manufacturing environment into that pipeline as we ramp Sacramento production, and own the infrastructure and CI/CD practices that make our software team fast and reliable.

You'll join a small software team where individual ownership is real — you'll ship, monitor, and iterate on production systems that customers, operators, and engineers all depend on. This is a great fit for someone who wants to build meaningful infrastructure at a company doing genuinely novel work in energy storage.

This role partners closely with ESS Engineering, Manufacturing Engineering, and Product.

## What You'll Do - (Responsibilities)

- Design, build, and maintain the post-processing pipeline that calculates production-critical battery metrics — round-trip efficiency, availability, cycle tracking — from raw telemetry, using Azure Functions and persisting to our cloud database for dashboarding and analytics.

- Connect our manufacturing database to physical devices and the cloud pipeline as Peak scales production at our Sacramento factory, enabling data-driven manufacturing at gigawatt scale.

- Maintain and improve the real-time data pipeline infrastructure from physical sites in the field to our cloud database, ensuring reliability and low latency across a growing fleet of deployed batteries.

- Design and maintain automated CI/CD pipelines for build, test, and deployment across our software stack, reducing time from commit to production.

- Define and manage cloud resources via Infrastructure as Code (Terraform or equivalent), replacing manual provisioning with repeatable, version-controlled infrastructure that scales as our deployment footprint grows.

- Partner with ESS Engineering and Manufacturing Engineering to instrument new features, surface the right data to the right teams, and improve observability across the platform.

- Own production issues end-to-end when they arise — diagnose, fix, and improve the systems to prevent recurrence.

## What You'll Bring (Minimum Qualifications)

- 4+ years of software engineering experience with meaningful full-stack, backend, or platform work in production.

- Strong Python skills — backend data processing, automation, scripting.

- Strong SQL skills — PostgreSQL, time-series queries, schema design and migrations.

- Cloud platform experience — Azure preferred; AWS or GCP transferable.

- Hands-on experience with Infrastructure as Code — Terraform or equivalent tooling.

- Experience designing and maintaining CI/CD pipelines — GitHub Actions, Azure DevOps, or similar.

- Comfort taking ownership of production systems, including monitoring, incident response, and continuous improvement.

- Bachelor's degree in Computer Science, Computer Engineering, or a related technical field, or equivalent experience.

## Preferred Qualifications

- Prior experience with battery systems, energy storage, EV, IoT, or industrial telemetry platforms.

- Experience with real-time streaming data infrastructure — Kafka, Azure Event Hubs, Kinesis, or similar.

- Familiarity with observability and monitoring platforms — Datadog, Grafana, Application Insights.

- Docker and container orchestration experience.

- Prior experience at a Series B/C hardware or industrial startup — comfort with the pace and building process where none exists.

- Experience partnering with hardware, firmware, or embedded teams.

Our Core Values

- Speed Through Focus — Move fast but understand why. Focus on the goal, don't sacrifice quality.

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

- Face the Brutal Truth — Transparency, honesty, big-picture curiosity. Fearless decision making.

- Be a Good Person — Kindness, collaboration, and teamwork.

## Compensation & Benefits

The salary range for this role is $180,000 - $240,000, 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

- [Test Engineer](https://feeny.ai/job/test-engineer-peak-energy-burlingame-ep7ev9ga2dh3) — Burlingame, CA
- [Test Technician](https://feeny.ai/job/test-technician-peak-energy-burlingame-h26vtxaq1n8x) — Burlingame, CA
- [Manufacturing Production Engineer](https://feeny.ai/job/manufacturing-production-engineer-peak-energy-sacramento-2ab6nrhnyp0s) — Sacramento, CA
- [Senior Manager, Communications](https://feeny.ai/job/senior-manager-communications-peak-energy-burlingame-d8k1vkgxz19a) — Burlingame, CA
- [Electrical Engineer](https://feeny.ai/job/electrical-engineer-peak-energy-burlingame-kgb7kssetbh8) — Burlingame, CA
- [Technical Program Manager, ESS](https://feeny.ai/job/technical-program-manager-ess-peak-energy-burlingame-f31qhzctht8a) — Burlingame, CA
- [Automation Technician](https://feeny.ai/job/automation-technician-peak-energy-sacramento-mfggby2n2bkq) — Sacramento, CA
- [Field Engineer](https://feeny.ai/job/field-engineer-peak-energy-burlingame-mcw9jjazdesj) — Burlingame, CA
- [IT System Administrator (Sacramento)](https://feeny.ai/job/it-system-administrator-sacramento-peak-energy-sacramento-8y3eabpgvbh1) — Sacramento, CA
- [Senior Sales Director](https://feeny.ai/job/senior-sales-director-peak-energy-burlingame-ca-or-broomfield-5wvmnkv7feet) — Burlingame CA OR Broomfield, CO