Full Stack Software Engineer
US$180,000 – US$240,000 / yr base salary
Posted 28 Sep 2026
Advertised as “Full-Stack Software Engineer”
BranchFactor Summary
The original posting with the fluff stripped out
- Expected experience
- 4+ yrs
- Management level
- Individual contributor
- Contract
- Full-time
| Base salary | US$180,000 – US$240,000 / yr |
|---|
Field of studyComputer Engineering, Computer Science (or related)
Study levelBachelor's
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)