Our software decides every 15 minutes what a battery should do. You own the layer that makes it happen: our EMS, the interface between our optimizer and every battery we connect. Whether we build our own EMS or integrate existing ones is a call you'll help us make.

Own our EMS integration layer: one clean interface that connects any storage system (inverter, BMS, site controller) to our optimizer

Onboard new vendors over Modbus, MQTT and vendor APIs, so the next battery is a config, not a project

Commission systems on site until the battery follows the plan to the kW

Build our own edge box on standard hardware (think Raspberry Pi on a DIN rail)

You Will Have Fun If You Are

Builder with agency

Get-shit-done mentality: you'd rather drive to the site than wait for a support ticket

High ownership: the EMS interface is yours, from the vendor call to go-live

Mission-driven

Passionate about energy transition and climate impact

Thrive in early-stage chaos (e.g. "Can you be in Ingolstadt tomorrow at 8?")

You Won't Have Fun If You

Like to follow processes. We don't have any.

Want to work remotely. We're in the office 5 days/week, and regularly on site at customers.

Want to stay on one side of the wall. This is half software, half hardware.

Qualifications

Hands-on experience with energy management systems (EMS) for battery storage, PV or C&I sites. Ideally you've built or integrated one yourself, whether at work, in your thesis or during an internship. Similar experience counts too (e.g. battery management systems (BMS), SCADA, EV charging, building automation or industrial controls): a lot of that knowledge transfers directly

Solid Python and embedded Linux (networking, VPN, remote updates)

Industrial protocols: Modbus TCP/RTU, MQTT, REST

Electrical basics: inverter, BMS, grid connection point. Bonus: PV/battery commissioning

Fluent German, because installers and customers speak German

Fresh out of university? Very welcome. Experience from your thesis, internships or side projects counts just as much as a job title. Don't worry if you don't tick every box: we prefer fast learners over years of experience.

Perks

Super small team, super early: you shape the culture

You own the EMS and the hardware: how we connect batteries and which box we ship is your call

Direct customer access: see your code move a megawatt-hour battery

€70–100K salary + equity as full time · €24/h as working student