Pretoria: Embedded engineer

Were developing innovative IoT systems that integrate sensors, embedded firmware, and cloud connectivity and were looking for a hands-on engineer to bring our hardware to life. As our Embedded Systems & PCB Design Engineer, youll be responsible for designing custom electronics, programming firmware for microcontrollers, and integrating various sensors into reliable, production-ready IoT devices. Key Responsibilities – Design and develop firmware for embedded microcontrollers (e.g. EFM32, ESP32) – Design, layout, and test PCB boards using tools such as KiCad, Altium, or Eagle – Integrate and calibrate sensors (temperature, pressure, flow, GPS, etc.) – Implement and test communication protocols (I2C, SPI, UART, CAN) – Develop and optimize wireless connectivity (Wi-Fi, BLE, LoRa, NB-IoT, GSM, LTE) – Collaborate with software/cloud teams for end-to-end IoT integration – Prototype, test, and debug using lab equipment (oscilloscope, logic analyzer, etc.) – Prepare production documentation and support hardware manufacturing partners – Fault finding and repair of PCBs, electrical and electronic assemblies. – Technical support for projects and support for new designs. – Participate in project technical reviews. – Provide mentorship and technical guidance to other members of the discipline. – Provide input into Skills Development/Training and contribute to discipline-specific training where applicable. – Assist with the procurement, maintenance, training in use of discipline specific Tools. – Implement and maintain version control processes for firmware development using Git repositories. – Able to make adjustments on all existing firmware projects. – Assist and generate necessary engineering documentation related to the work being executed. – Support the Company proposal/quotation generation process. – Assist with budgeting for capital expenditure and expenses. – Assist with creating BOMs for products and update when changes are implemented. Requirements – 3 years experience in embedded systems and PCB design – A minimum of an BEng in Electronic or Computer Engineering – Strong in C/C++ programming for embedded systems – Experience with sensor integration and analog/digital signal interfacing – Familiarity with IoT communication protocols (MQTT, CoAP, REST) – Working knowledge of power management and low-power design – Experience with hardware bring-up, testing, and troubleshooting – Advantageous: experience with OTA updates, device provisioning, or cloud IoT platforms (AWS IoT, Azure IoT, etc.)