Embedded Software Engineer

J&L Apex Advisory; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

J&L Apex Advisory in Singapore is seeking an experienced embedded engineer to design, develop, and deliver bootloader solutions across BootROM, BL2, BL31, and U-Boot. You will work with hardware, firmware, and system teams to ensure fast startup and reliable firmware upgrades.

The role emphasizes optimising boot time, improving system stability, and supporting mass production deployment of bootloader and BSP solutions, with a strong focus on documentation and collaboration.

Qualifications

• Bachelor's degree or above in Electronics, CS, Automation, or related fields.
• 5+ years of experience in bootloader, system initialization, or firmware upgrade software.
• Deep understanding of the ARM64 boot process.
• Hands-on experience with ATF and U-Boot.
• Proficient with oscilloscopes, logic analyzers, and other hardware debug tools.
• Proven ability to optimize boot time, system stability, and firmware upgrade reliability.

Responsibilities

• Design, develop, and deliver bootloader solutions including BootROM, BL2, BL31, U-Boot
• Develop and maintain device-side solutions for image download, burning, and firmware upgrade
• Optimize boot performance for fast startup and improve system stability, including restart and recovery mechanisms
• Support productization and mass production deployment of bootloader and BSP solutions
• Create and maintain technical documentation such as design specs, manuals, and operational guides
• Collaborate with hardware, firmware, and system teams to ensure smooth integration and system reliability

Skills

Bootloader development

ARM64 boot process

Firmware upgrade

System initialization

Performance optimization

Hardware debugging

Education

Bachelor's degree

Tools

ATF

U-Boot

Job description

• 1. Design, develop, and deliver bootloader solutions including BootROM, BL2, BL31, U-Boot
• 2. Develop and maintain device-side solutions for image download, burning, and firmware upgrade
• 3. Optimize boot performance for fast startup and improve system stability, including restart and recovery mechanisms
• 4. Support productization and mass production deployment of bootloader and BSP solutions
• 5. Create and maintain technical documentation such as design specs, manuals, and operational guides
• 6. Collaborate with hardware, firmware, and system teams to ensure smooth integration and system reliability

How you will stand out:

• 1. Bachelor’s degree or above in Electronics, Computer Science, Automation, or related fields,
• 2. More than 5 years of experience in bootloader, system initialization, or firmware upgrade software
• 3. Deep understanding of the ARM64 boot process
• 4. Hands-on experience with ATF (ARM Trusted Firmware) and U-Boot
• 5. Proficient with oscilloscopes, logic analyzers, and other hardware debug tools
• 6. Proven ability to optimize boot time, system stability, and firmware upgrade reliability