Electronic Engineer or Technician with Solid Experience / Firmware and Hardware Development

Description

Job Summary: An Electronic Boards company is seeking an Electronic Engineer or Technician with experience in hardware, firmware development in C for Holtek/ST microcontrollers, and PCB design. Key Highlights: 1. Solid experience in electronic hardware and embedded firmware in C. 2. Development of electrical schematics and bench debugging. 3. Work on power consumption optimization and manufacturing support. A company in the **Electronic Boards** sector is hiring immediately for an Electronic Engineer or Technician with solid experience in **electronic circuits (hardware)** and **firmware development in C** for **Holtek/ST microcontrollers\- C language**. Responsibilities include schematic and PCB development, peripheral integration (I²C, SPI, UART), bench debugging, and manufacturing support. Familiarity with test equipment (oscilloscope, logic analyzer) is desirable. **Responsibilities** * Design electrical schematics * Develop firmware in **C\* (drivers, peripheral drivers, communication, and embedded applications) for Holtek/ST microcontrollers.\* * Perform testing, debugging, and validation on the bench (oscilloscope, logic analyzer, programmable power supply). * Test prototypes installed in the final product/application. * Optimize power consumption and performance of the embedded system. * Prepare technical documentation (schematics, BOM, test procedures). * Support transfer to production, including fixture/test preparation and post\-production issue resolution. * Implement best practices for EMC/EMI, electrical protection, and safety. **Mandatory Requirements** * Bachelor’s degree in Electrical/Electronic Engineering, Computer Engineering, or Electronics Technician with solid experience. * Practical experience in **electronic hardware**: reading/creating schematics, component selection, layout considerations for DFM/EMC. * Experience developing **firmware in C** for Holtek or ST microcontrollers. * Experience with serial communication and embedded protocols (UART, I²C, SPI, CAN — as applicable). * Knowledge of debugging and instrumentation tools (oscilloscope, logic analyzer, multimeter). * Proficiency in reading and interpreting datasheets and peripheral manuals. **Desirable** * Experience with CAD/EDA tools: Altium Designer, KiCad, Eagle. * Familiarity with RTOS (e.g., FreeRTOS) and multitasking practices. * Knowledge of analog electronics (amplifiers, signal conditioning). * Experience with EMC/safety certifications and requirements. * Technical English (reading datasheets and documentation). **Company Offers:** * Transportation allowance * On\-site meals * Internal company parking * Health insurance * Dental insurance Salary: R$4\.800,00 \- R$11\.000,00 per month Benefits: * Medical assistance * Dental assistance * Fuel allowance * Free parking Work Location: On\-site