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Green Battery office

Build the grid Japan needs.

We're building the infrastructure that turns Japan's surplus renewable energy into reliable power. If you want to help build what comes next, we want to hear from you.

Why Green Battery

Early enough to shape it, funded enough to build it.

We're about 50 people, three offices and projects spanning four regional grids. That means your work is visible, decisions move quickly, and what you build can become infrastructure.

You'll help shape how a young company develops, finances, builds and operates one of the most important pieces of Japan's energy transition – and see your work go from plans to projects in the ground.

Work with impact

Every project helps put surplus clean power to work, reduces wasted renewable energy and strengthens Japan's energy security. Real projects. Real infrastructure. Measurable impacts.

Own your work.

Small team. Flat structure. Direct access to leadership. Bring an idea, take responsibility and make it happen. You won’t spend your first year waiting for permission.

Global outlook

A team with experience across energy, real estate, science and U.S. capital markets. We’re building in Japan today with a roadmap designed for what comes next.

Where we're hiring

Areas we're growing.

We’re growing across the company and recruit on a rolling basis. If you have the expertise we need, reach out – even if you don’t see an open role that fits.

Project development site with land under survey

Project Development

Site sourcing, landowner relations, permitting and grid-interconnection filings. Ideal for people who like taking projects from a first conversation to construction-ready.

Engineers on a battery-storage construction site

Engineering & Construction

System design, procurement, EPC management and commissioning of grid-scale battery sites with leading Tier-1 technology partners.

Project finance and reporting materials

Finance & Corporate

Project finance, accounting, reporting and internal controls – all supporting a company entering its next stage of growth.

Operations and asset management of live storage sites

Operations & Asset Management

Monitoring, maintenance and market optimization that keep live sites safe, reliable and performing across energy markets.

How to apply

Three simple steps.

01

Send your details

Use the form and pick "Careers" as the inquiry type.

02

We talk

A conversation to understand your goals and ours.

03

Join the team

Come help build Japan's storage infrastructure.

No open role that fits? Reach out anyway.

Let's talk about your future here.

Tell us where you'd add value. Choose "Careers" in the contact form and attach a short note about yourself.