Systems & Integration Engineer

About the Role We are building a hardware-agnostic IoT platform that connects physical sensors, industrial controllers, gateways, and OEM devices to a unified cloud dashboard. We need an experienced IoT Systems & Integration Engineer who can build the protocol adapters, gateway software, and device abstraction layer that makes this possible. This role works directly with a large ecosystem of OEM hardware suppliers across multiple countries. The Ideal Candidate You have spent years working with real hardware — not simulated devices. You have debugged Modbus register maps, written MQTT clients that run on embedded Linux gateways, and configured industrial IoT gateways for production deployments. You can read a hardware datasheet and write a Python protocol adapter without help. You understand that data quality from device to cloud matters more than feature velocity. Key Responsibilities Device & Protocol Integration • Build and maintain the device integration layer: Python and C-based protocol adapters, drivers, and translation modules for sensors, PLCs, energy meters, gateways, and OEM hardware • Implement production-quality integration adapters for: MQTT v3.1/v5.0, Modbus TCP, Modbus RTU, OPC-UA, BACnet/IP, SNMP, CoAP, HTTP REST, and proprietary OEM APIs • Write reusable protocol libraries that abstract hardware communication behind a unified Device Interface — not one-off scripts per device • Build and maintain the Device Compatibility Matrix: all tested hardware logged with protocol version, firmware, known issues, config templates, and onboarding effort estimate • Conduct hardware-in-the-loop testing for every new device: validate telemetry accuracy, command round-trip time, error handling, and reconnection behaviour under interrupted connectivity • Build device profile templates enabling configuration-based onboarding of certified device types — no customer-side code required • Implement data normalisation: raw hardware values (register counts, voltage, proprietary units) converted to standardised engineering-unit JSON telemetry

Edge & Gateway Engineering • Build edge gateway software running on embedded Linux gateways and Raspberry Pi-class devices for local protocol translation, data buffering, and pre-processing • Implement local data buffering on edge: no data loss during cloud connectivity gaps — mandatory for industrial and logistics deployments • Develop edge aggregation logic: configurable statistical summaries to reduce uplink bandwidth where cloud cost or connectivity is constrained • Configure and validate edge runtimes: AWS Greengrass, Azure IoT Edge, or Node-RED on target OEM gateway hardware • Implement secure edge-to-cloud communication: mTLS with X.509 certificates, certificate rotation, and revocation handling • Build OTA update clients on edge devices: receive, validate, stage, and apply firmware updates from the platform OTA service

OEM & Hardware Onboarding • Evaluate new hardware from the supplier ecosystem: produce integration feasibility reports and effort estimates within 48 hours of receiving a new device • Work with OEM technical teams to obtain datasheets, SDK documentation, communication specs, and evaluation units • Write SDK and integration guides for each certified hardware family — enabling customers to self-onboard without raising support tickets • Validate hardware compatibility for customer deployment environments before any commercial commitment is made • Maintain complete documentation for every integration: protocol specs, firmware versions tested, known limitations, configuration templates, troubleshooting steps