Senior Backend Engineer (IoT & Smart Platforms)

We are seeking a visionary Senior Backend Engineer with deep expertise in IoT ecosystems and M2M connectivity to lead the development of our next-generation smart platform from scratch. In this role, you will architect the "nervous system" of our product, bridging the gap between physical hardware—such as telematics units and smart meters—and scalable cloud logic. You will be responsible for the end-to-end lifecycle of IoT data, from direct hardware integration and M2M SIM orchestration to building complex business logic for automated monitoring systems. Key Responsibilities Architect from Scratch: Design and implement a greenfield, microservice-based backend architecture optimized for high-throughput IoT data ingestion. Hardware & SIM Integration: Directly integrate diverse hardware (Telematics, Smart Meters) and manage the M2M SIM lifecycle (provisioning, activation, and data limit orchestration) via telco APIs. Protocol Implementation: Develop handlers for IoT protocols including MQTT, CoAP, HTTP/2, WebSockets, and LwM2M. Connectivity Management: Implement logic to monitor signal strength (RSSI), manage APN configurations, and handle failover logic for devices using cellular M2M/eUICC technology. Logic Development: Build complex backend logic for smart solutions, such as geofencing, real-time alerting, and automated data-usage capping to prevent SIM overages. Data Orchestration: Manage massive streams of time-series data using PostgreSQL (and TimescaleDB) to ensure dat