(Senior) IoT Cloud Engineer (mfd)

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 dont 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 3000 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.

Learn about our Product & Tech team!

Deine Position

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.

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.

Key responsibilities include but are not limited to:

• Take ownership of our systems at the intersection of Cloud Services and residential IoT Gateways
• Operate and evolve our Kubernetes-based IoT Cloud Platform including the deployment scaling and hardening of our connectivity and fleet services
• Develop and run our Eclipse Hono stack as the messaging backbone between gateways and the cloud
• Design build and operate features around fleet management enabling the lifecycle of gateways from production line to field
• Integrate tightly with Mender to operate safe OTA rollouts across the fleet.
• Contribute to load and resilience tests to prove the platform scales and to find limits before our customers do
• Build and own the observability pipelines for the IoT Platform and turn metrics into automated monitors alerts and self-healing mechanisms
• Build data pipelines and BI models to turn raw data into fleet insights
• Work collaboratively with product managers data engineers IoT engineers as well as cloud engineers to understand problems support discoveries and create solutions enabling a scalable virtual power plant
• Foster a culture of experiment-driven innovation within the teamTechnologies you will work with include:
• Cloud & Infra: Google Cloud Platform GKE (Kubernetes) Cloud Run Terraform/IaC
• Messaging & IoT: Eclipse Hono MQTT Mender
• Data & BI: PostgreSQL BigQuery SQLMesh Looker
• Observability: Datadog OpenTelemetry
• Languages: TypeScript () Java Go
• DevOps: CI/CD pipelines (GitHub Actions)

Dein Profil

The successful candidate will have:

• Bachelors or Masters degree in Computer Science Software Engineering or related field
• 5 years of experience building and operating cloud / distributed backend systems in production
• Strong hands-on experience with Kubernetes (ideally GKE) and modern cloud-native operations
• Solid understanding of MQTT and device-to-cloud messaging patterns at scale including back-pressure QoS and fan-out
• Experience designing and running observability pipelines (logs metrics traces) for large-scale distributed systems and turning them into actionable monitors
• Comfortable working with data and BI tooling writing SQL modeling data and building dashboards that drive decisions
• Experience with CI/CD IaC and platform engineering practices
• A strong reliability and security mindset
• Ability to guide architectural decisions and navigate across embedded hardware data and product teams
• Agile product-oriented mindset and a strong team player with a bias for action and ownership
• Strong troubleshooting and analytical mindset
• Clear and effective communicator in English (German is a plus)Bonus points for:
• Production experience with Eclipse Hono or a comparable IoT connectivity platform
• Familiarity with Mender or other large-scale OTA / fleet management systems
• Experience with SQLMesh and/or Looker (LookML) specifically
• Familiarity with Google Cloud Platform as the primary cloud
• Experience running load tests for messaging infrastructure or large-scale distributed systems.
• Passion for climate tech and distributed energy systemsWe are an ambitious and dynamic company with a talented team. We require our engineers to be imaginative enthusiastic and willing to tackle new challenges as we strive to provide everyone with renewable energy technologies.

Benefits

• You are part of an international dynamic and highly motivated team of people who have proven to make things happen
• With your work you accelerate the energy transition and hence have a direct impact on our climate
• Work with and learn from other super-smart colleagues
• You will enjoy direct contact with core decision-makers
• You will enjoy the best chances of entering full-time in one of Europes most thriving scaleups
• You work remotely (Germany-wide) with offices in Hamburg Berlin or Munich
• Create a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass
• Benefits and discounts are yours with Futurebens
• Whether city bike or e-bike - be flexible with our job bike leasing and do something good for the environment at the same time