Embedded Systems Engineer at Savannah Tracking Ltd

Job Summary

• We are looking for a skilled Embedded Systems Engineer to design, develop, and optimize firmware and hardware for embedded applications. The ideal candidate should have experience in C programming, microcontroller-based systems (e.g., STM32, ATtiny), RF design, and low-power embedded systems.

Key Responsibilities

Firmware Development

• Develop firmware in C/C++ for microcontrollers from STM32, Atmel Xmega and ATtiny MCUs among others
• Well versed with peripherals and communications protocols such as SPI, I2C, UART, Timers, DMA
• Implement low-power strategies, sleep modes, and wake-up mechanisms (e.g., LPTIM-based RTC, power gating).
• Develop for communication protocols e.g. Lora, Satellite comms, LTE, sub 1 GHZ
• Design real-time embedded applications with RTOS or bare-metal programming.
• Optimize firmware for size, speed, reliability and power efficiency.

Hardware Design & Integration

• Develop and test embedded hardware prototypes, including RF circuits, amplifiers, and sensor interfaces.
• Work with MCU-PLL interfaces, SPI, I2C, UART, and GPIO-based control.
• Experience with Ecad tools such as Altium, Eagle, KiCad(Altium Preferred)
• Design and test RF amplifiers, oscillators, and impedance matching networks.
• Troubleshoot hardware and firmware issues using oscilloscopes, spectrum analyzers, and logic analyzers.

System Optimization & Testing

• Profile and minimize current consumption in battery-powered systems.
• Implement debugging strategies using UART, SWD, and JTAG.
• Perform PCB layout optimization for compact embedded designs
• Test embedded systems for reliability, EMI, and thermal performance.

Required Qualifications

• Bachelor’s degree in Electronics,Computer Science and Electrical Engineering, or related field.
• Strong C programming skills and experience with embedded toolchains (Microchip studio, STM32Cube IDE, Keil, GCC, IAR, etc.).
• Experience with microcontrollers (STM32, ATtiny, AVR, etc.) and low-power design.
• Knowledge of RF circuits, impedance matching, and power amplifier design.
• Hands-on experience with oscilloscopes, logic analyzers, and RF measurement tools, soldering SMD components
• Excellent Debugging and problem-solving skills.
• Able to work in a team and absolute positive attitude.

Preferred Qualifications

• Experience with RTOS (FreeRTOS, Zephyr).
• Experience Developing Firmware for STM32, ATmel and/or Nordic MCUS
• Knowledge of PCB design (Altium, KiCad, Eagle).
• Understanding of low-power wireless protocols (LoRa, BLE, Zigbee).
• Excellent skills in debugging both hardware and firmware
• Experience with MATLAB, Python for signal analysis.