(Senior) IoT Cloud Engineer (m/f/d)

<h2>1KOMMA5°</h2> <p>At <strong>1KOMMA5°</strong>, we pursue a clear vision: <strong>Living on wind and sunlight forever for free</strong>. To make this a reality, we are building the energy system of the future with Heartbeat AI. Want to be part of it?</p> <p>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.</p> <p><strong>Want to take responsibility and build solutions that truly matter? Apply now and help us shape the energy world of tomorrow.</strong></p> <p>Learn about our Product &#x26; Tech team!</p> <h2>Deine Position</h2> <p>At 1KOMMA5°, we connect and manage tens of thousands of distributed energy devices at scale. As a (Senior) IoT Cloud Engineer, you will own the cloud side of our IoT Platform that ingests, routes, and observes every message flowing between our gateway fleet and our cloud services.</p> <p>You will work at the intersection of cloud infrastructure, messaging systems, data and IoT engineering, making sure our device-to-cloud highway is reliable, secure, observable, and cost-efficient as the fleet grows. We are a Platform team: your work directly enables product teams across Heartbeat AI to ship features faster, while giving the business a clear, data-driven view of fleet health and performance.</p> <p>Key responsibilities include but are not limited to:</p> <ul> <li>Take ownership of our systems at the intersection of Cloud Services and residential IoT Gateways</li> <li>Operate and evolve our Kubernetes-based IoT Cloud Platform, including the deployment, scaling, and hardening of our connectivity and fleet services</li> <li>Develop and run our Eclipse Hono stack as the messaging backbone between gateways and the cloud</li> <li>Design, build and operate features around fleet management enabling the lifecycle of gateways from production line to field</li> <li>Integrate tightly with Mender to operate safe OTA rollouts across the fleet.</li> <li>Contribute to load and resilience tests to prove the platform scales and to find limits before our customers do</li> <li>Build and own th...

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