Role Description 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 team Technologies 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 (Nest.js), Java, Go - DevOps: CI/CD pipelines (GitHub Actions) Qualifications - Bachelor's or Master's 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) Requirements - 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 systems 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 Europe’s 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

Support and administer enterprise cloud infrastructure, focusing on AWS and Linux systems. Manage observability and logging platforms, ensuring system reliability and security while collaborating across technical disciplines for operational continuity...

• Develop and optimize data pipelines, integrate multiple information sources, and ensure data availability and quality for analytical and operational consumption. • Develop and maintain data pipelines using AWS services, particularly AWS Glue, Amazon Athena, and Amazon S3. • Design and implement ETL processes and data integration between different corporate systems. • Consolidate data from multiple sources into centralized, scalable environments. • Develop complex SQL queries for data transformation, modeling, and analysis. • Ensure data quality, performance, reliability, and data governance. • Support initiatives to migrate data platforms to AWS. • Work on evolving cloud data architectures. • Create and maintain dashboards, reports, and analytical solutions using data visualization tools. • Monitor production environments, identify bottlenecks, and resolve incidents. • Collaborate with Product Owners, business stakeholders, and technical teams to translate business needs into data solutions. • Participate in agile ceremonies and contribute to the continuous improvement of development processes. • Support Data Analytics, Business Intelligence, and Data Platform initiatives.

• Serve as the primary technical point of contact for external clients, translating business needs into secure cloud solutions. • Lead the design, deployment, and maintenance of scalable Landing Zone configurations utilizing expert-level Terraform. • Administer complex Microsoft 365 services and Azure subscriptions, ensuring optimal uptime and issue resolution. • Manage enterprise identity, access provisioning, and conditional access policies using Microsoft Entra ID. • Build and maintain PowerShell scripts and CI/CD pipelines to automate routine M365 and Azure administration tasks. • Monitor tenant health, remediate Defender for Cloud findings, and uphold strict data governance standards.