Senior Embedded Software Engineer

Efinix Technology (M) Sdn. Bhd.; Penang; On-site; MYR 90,000 - 150,000; Full time

Job summary

Efinix Technology (M) Sdn. Bhd. in Penang is seeking an experienced embedded firmware engineer to design, implement, and maintain bare-metal and FreeRTOS drivers for peripherals such as UART, SPI, I2C, GPIO, timers, AXI4 and APB interconnects.

You will extend RTOS support across SoC variants (including SMP), integrate lwIP/TCP/IP networking, SDHC/eMMC storage, and develop example applications to showcase RISC-V capabilities; mentoring juniors and improving build systems.

Qualifications

• Bachelor's or Master’s degree in Electrical/Electronic Engineering, CS, or related field.
• 4+ years of hands-on embedded software development.
• Strong C programming and ARM/RISC-V assembly skills.
• Experience with bare-metal firmware development (startup code, linker scripts, interrupt handlers).
• RTOS experience (FreeRTOS/Zephyr/RT-Thread).
• Familiarity with UART, SPI, I2C, AXI/AXI4, APB interfaces.
• Proficient in GCC cross-compilation and Makefile-based builds.
• Strong debugging and root-cause analysis skills.

Responsibilities

• Design, implement, and maintain bare-metal and FreeRTOS drivers for peripherals including UART, SPI, I2C, GPIO, timers/watchdog, AXI4, and APB interconnects.
• Port and extend RTOS support across SoC variants, including SMP configurations.
• Build and maintain networking software: lwIP TCP/IP stack integration, Ethernet TSE MAC drivers, and iperf- and MQTT-based demos.
• Implement and maintain storage stack support: SDHC/eMMC drivers and FAT filesystem integration.
• Develop new bare-metal and FreeRTOS examples that demonstrate RISC-V SoC capabilities.
• Review code and improve build/test infrastructure (Makefile-based toolchains, RISC-V GCC cross-compilation).
• Investigate and resolve field- and customer-reported issues on shipped SoC platforms.
• Mentor junior firmware engineers on driver development, debugging methodology, and RTOS internals.

Skills

C programming

RISC-V assembly

Bare-metal firmware

RTOS development

UART

SPI

I2C

AXI/AXI4

APB

JTAG debugging

GCC cross-compilation

Makefile build

Debugging

Embedded architectures

Education

Bachelor's/Master's in Electrical/Electronic Engineering / CS

Tools

OpenOCD

Lauterbach TRACE32

GCC

Job description

Jora Malaysia will close on 9th September 2026. Thank you for being with us, we are cheering you on as you continue your career journey.

Design, implement, and maintain bare-metal andFreeRTOSdrivers for peripherals including UART, SPI, I2C, GPIO, timers/watchdog, AXI4, and APB3 interconnects

Port and extend RTOS support (FreeRTOStoday, growing Zephyr RTOS footprint) across SoC variants, including SMP (multi-core) configurations

Build and maintain networking software:lwIPTCP/IP stack integration, Ethernet TSE MAC drivers, andiperf- and MQTT-based demos

Implement and maintain storage stack support: SDHC/eMMC drivers and FAT filesystem integration

Develop new bare-metal andFreeRTOSexamples that demonstrate RISC-V SoC capabilities

Review code and improve build/test infrastructure (Makefile-based toolchains, RISC-V GCC cross-compilation)

Investigate and resolve field- and customer-reported issues on shipped SoC platforms

Mentor junior firmware engineers on driver development, debugging methodology, and RTOS internals

Qualifications

Bachelor's orMaster's degree in Electrical/Electronic Engineering, Computer Engineering, Computer Science, or a related field

4+ years of hands-on embeddedsoftware development experience, ideally on ARM, RISC-V, or other 32/64-bit embedded architectures

Strong C programming skills and assembly (RISC-V or similar)

Proven experience with bare-metal firmware development: startup code, linker scripts, interrupt/trap handlers, memory-mapped peripherals

Hands-on experience with at least one RTOS (FreeRTOS, Zephyr, RT-Thread, orsimilar) —porting, driver integration, or kernel configuration

Solid understanding of common bus protocols and interfaces: UART, SPI, I2C, AXI/AXI4, APB

Experience with JTAG-based debugging tools (OpenOCD, Lauterbach TRACE32, or similar)

Comfortable working with cross-compilation toolchains (GCC) andMakefile-based build systems

Strong debugging and root-cause analysis skills for hardware/software boundary issues