Founding Senior Firmware and IoT Engineer

## About the Role This is a specialized founding hire with a clearly defined lane. You own everything between the physical world and our data platform. Sensor selection, firmware, device communication, edge reliability, and clean data handoff to our backend team. You are not responsible for the scoring engine, the application, or the business logic. You are responsible for making sure the physical layer works flawlessly so the rest of the platform can do its job. You report directly to the CTO. ## What You Will Own - Evaluating and deploying IoT sensors across fire, water, electrical, environmental, and occupancy categories in real building environments - Writing, deploying, and maintaining firmware for edge devices with reliable communication via BLE, WiFi, and cellular protocols - Architecting how sensors communicate with the Luxira platform, selecting the right protocols and ensuring they hold up in real building conditions - Designing for connectivity loss, device failure, and OTA updates so the system stays reliable without manual intervention - Delivering structured, reliable data from the edge to the backend team. Your job ends at the handoff point and that handoff has to be clean every time - Keeping the hardware layer well documented so the broader technical team always understands what is happening at the edge ## What We Are Looking For - 5 or more years of firmware or embedded systems development with production IoT deployments in physical environments - Proven track record shipping IoT products that survived real world failure. Not lab environments, actual deployments - Deep hands on experience with sensor protocols including BLE, Zigbee, WiFi, and MQTT - Experience with OTA firmware updates, device failure recovery, and maintaining uptime in uncontrolled environments - Clear communicator who documents well and works effectively alongside a backend team without needing to own their layer - Experience in regulated or compliance sensitive environments such as SOC2 or HIPAA is a strong plus - Comfortable working in a lean early stage environment where you define the process as much as you follow it ## Nice to Have - Experience with Tuya IoT or similar commercial IoT ecosystems - Background in commercial real estate, senior living, or insurance adjacent technology - Familiarity with mmWave radar or environmental sensor hardware - Prior experience on a small founding team at an early stage startup ## What We Offer - $110,000 to $130,000 base salary ## About the Company Luxira is a risk intelligence company building a proprietary scoring system for the built environment. We help operators and insurers quantify building risk before incidents become claims. We are fully funded, pre-seed, and targeting our first pilots in Q1 2027. The team is lean, the problem is real, and the market is large. Note: Luxira is in stealth mode on certain aspects of our technology and go to market approach. Full details are shared with candidates who progress through our interview process.