Software Engineer - Edge & Cloud (m/f/d)

1KOMMA5° At 1KOMMA5° , we pursue a clear vision: Living on wind and sunlight forever for free . To make this a reality, we are building the energy system of the future with Heartbeat AI. Want to be part of it?

We bring together regional craftsmanship and scalable software: We don't think of solar, batteries, heat pumps, and e-mobility as isolated components, but control them as an intelligent, integrated overall system in our virtual power plant. Directly connected to the electricity market – in real time, fully automated.

This way, energy is used when it is available from renewables and particularly cost-effective. By 2030, our goal is to transition 1. 5 million households to renewable energies. Over 3,000 people are working towards this every day, at more than 80 locations worldwide, from Finland to Australia.

Want to take responsibility and build solutions that truly matter? Apply now and help us shape the energy world of tomorrow .

Your mission Full-Stack Development (Edge to Cloud): You develop the core components for our energy management system Heartbeat AI Enterprise – both locally on our IoT gateways (Edge) and scalably in our cloud-native backend architecture Gateway Programming (Go & Lua): You write high-performance code for our edge controllers.

With Golang, you build robust system services and communication layers; with Lua, you create lightweight, dynamically adaptable control scripts and protocol drivers for inverters, BESS, and HVAC systems Cloud Services & Microservices: You design and program scalable microservices in Go within the cloud backend to process time-series data, telemetry, and manage fleet operations across hundreds of customer sites Interfaces & Protocols: You implement communication protocols for the IoT ecosystem (MQTT, REST/gRPC) as well as for local equipment communication (Modbus TCP/RTU) VPP & Trading Integration: You enable seamless data flow between local systems (meter readings, flexibilities) and our Virtual Power Plant for au