Berlin (Hybrid / On-site) | Full-time | 5+ years experience | Loadwise.ai About LoadwiseData centers are becoming one of the fastest-growing electricity consumers in history, especially AI and HPC clusters. At the same time, power systems are increasingly driven by renewable generation, creating volatility in prices, carbon intensity, and grid conditions. Loadwise builds software that allows compute infrastructure to respond intelligently to these energy signals. We connect data center infrastructure directly to real-time energy markets and grid signals, enabling cost-optimal and carbon-aware operation of compute workloads and energy assets. The RoleWe are looking for a Platform & Integration Engineer to build the Loadwise platform. This is the core software engineering role on the team. Owning this platform end-to-end is a unique challenge. Very few engineers are comfortable spanning the full stack of a platform like this: raw protocol handling, data normalization, backend service architecture, and production observability - all in a domain where the data comes from physical infrastructure and the decisions affect real assets. As one of the first six people building Loadwise, you will design and operate everything that makes the platform run. You will work closely with the Energy Systems Engineer and the Controls Engineer. You will also be the technical point of contact when engaging with customer engineering teams. What the first six months look like: By month six, the platform is ingesting live telemetry from pilot facilities via at least two industrial protocols, integrated with one external energy market signal feed, and serving a real-time backend API to the controls and forecasting stack. All services are fully instrumented with metrics, logging, and alerting. What You'll Work OnProtocol Adapters & Integrations- Build and maintain protocol adapters connecting to physical facility infrastructure and building automation systems- Connect to energy market APIs, grid operator signal feeds, and utility interfaces- Build interfaces that provide real-time and forward-looking visibility into compute workload demand Platform & Backend Services- Build reliable data ingestion pipelines with validation, transformation, and storage- Design and maintain backend APIs consumed by forecasting, control, and reporting services- Implement data normalization and schema management across heterogeneous source systems- Ensure pipelines handle reconnection, backfill, and partial failures gracefully Reliability & Observability- Instrument all services with metrics, logging, and alerting- Define and track data freshness, completeness, and quality SLAs- Own deployment, scaling, and operational runbooks for the platform What We're Looking ForBackend Engineering & Systems- Experience building backend services and data pipelines in production environments- Core stack is Python and TypeScript/JavaScript (Go also works); comfort with distributed systems is expected- Familiarity with event-driven architectures, message queues, or streaming systems (Kafka, NATS, or similar) Infrastructure & Operations- Comfort deploying and operating services in a Kubernetes-based environment- Familiarity with observability tooling: Prometheus, Grafana, or similar- Ability to design for fault tolerance, retry logic, and graceful degradation- Familiarity with CI/CD pipelines and GitOps practices Tools & Mindset- You treat AI-assisted development tools (Cursor, Copilot, Claude Code, v0) as genuine force multipliers- Comfortable operating as a senior individual contributor with broad ownership- Ability to navigate vendor documentation and proprietary system APIs- Clear communicator across engineering, domain specialists, and founders Nice to Have- Exposure to IoT or industrial protocol integration (BACnet, Modbus, MQTT, OPC-UA)- Ability to build simple operator-facing dashboards (React, Vue, or similar)- Hands-on experience with DCIM or BMS vendors (Schneider EcoStruxure, Siemens Desigo, Nlyte)- Experience working with energy market APIs or grid operator interfaces What We Offer- Competitive Base & Meaningful Equity- Relocation & Visa Support to Berlin (Hybrid / On-site)- Your Setup: licenses for Cursor, Copilot, etc., and top-of-the-line hardware- High Autonomy, Zero Bureaucracy Our ProcessWe keep it lean. Three stages, no more than four weeks from first call to offer.