Description
We are looking for an Embedded Software Engineer with strong experience in bare-metal and RTOS- based development to design, implement, and validate low-level drivers, networking integration, and real-time control applications on embedded platforms.
Key Responsibilities
- Design, develop, and validate low-level drivers for on-chip IPs (UART, SPI, I2C, Timers, GPIO, CAN, Crypto) in both bare-metal and RTOS (e.g., FreeRTOS) environments.
- Implement initialization, interrupt-driven and DMA-based data transfer (where applicable), and configuration APIs for communication and control peripherals.
- Develop RTOS-compatible driver APIs, including interrupt handlers and DMA support, along with unit test applications for functional validation and regression testing.
- Port and integrate the LwIP TCP/IP stack on the target RTOS, interfacing with Ethernet MAC and PHY drivers.
- Validate network functionality using TCP/UDP echo server/client demos and perform performance tuning and memory footprint optimization of the stack.
- Develop drivers and demo applications for real-time control IPs, including :
- Data acquisition and conversion : SAR ADC with BIST, Sigma-Delta ADC, DAC for waveform generation and voltage control.
- Analog post-processing blocks : Filters, thresholding, comparator logic, and event generation using comparators.
- PWM generation : High-speed and low-speed PWM for fine/coarse control, including dead-time insertion for motor/actuator control.
- Implement real-time signal acquisition and processing flows, including closed-loop control loops where ADC inputs drive PWM outputs.
- Create demo applications that showcase system behavior and control algorithms, with visualization and logging via UART or network interfaces.
- Collaborate with hardware, systems, and test teams to review specifications, debug issues, and ensure robust, production-quality embedded software.
Required Qualifications
- Bachelors or Masters degree in Electronics, Electrical, Computer Engineering, or related field.
- Strong experience in embedded C programming and microcontroller/microprocessor-based development.
- Hands-on experience with bare-metal firmware and RTOS (preferably FreeRTOS) including tasks, ISRs, and synchronization mechanisms.
- Solid understanding of communication interfaces : UART, SPI, I2C, CAN, GPIO, Timers, and basic cryptographic IP usage (AES/SHA/RNG).
- Experience with TCP/IP networking on embedded systems, ideally with LwIP or similar lightweight stacks.
- Familiarity with ADCs, DACs, comparators, PWM generation, and real-time control concepts.
- Proficiency with embedded development tools : IDEs, debuggers, oscilloscopes, logic analyzers, and protocol analyzers.
- Strong problem-solving, debugging, and documentation skills, with the ability to work in a cross-functional engineering team.
- Experience with Ethernet MAC/PHY bring-up and debugging at the driver level.
- Knowledge of control systems, digital signal processing, or motor control.
- Experience writing unit tests and hardware validation demos for low-level drivers.
- Exposure to safety- or reliability-focused development (e.g., BIST, diagnostics).
(ref:hirist.tech)
