Embedded Linux Platform Engineer (Yocto/BitBake) (SML36ST RM 4045)

Position: Embedded Linux Platform Engineer (Yocto/BitBake) (SML36ST RM 4045)

Job Description

• Embedded Linux engineer with strong Yocto/BitBake expertise
• 3–6 years in Embedded Linux / Yocto development

Key Responsibilities

1. Develop and maintain BitBake recipes (.bb, .bbappend)
2. Create and manage Yocto layers (custom and third-party)
3. Customize Linux images:
   a. IMAGE_INSTALL, DISTRO_FEATURES, PACKAGECONFIG
4. Integrate applications and services into root filesystem
5. Manage dependencies:
   a. DEPENDS, RDEPENDS, RRECOMMENDS
6. Debug and resolve:
   a. BitBake build failures
   b. Dependency conflicts
   c. Patch and integration issues
   d. Analyse build logs (log.do_compile, log.do_install) and fix issues
7. Optimize:
   a. Build performance
   b. Image size and package footprint
   c. Work with cross-compilation toolchains and sysroots
8. Integrate and configure:
   a. systemd services
   b. Kernel modules and packages
   c. Support CI/CD pipelines for automated Yocto builds

Required Skills
Yocto & BitBake (MANDATORY)

1. Strong hands-on experience with:
   a. BitBake recipes (.bb, .bbappend)
   b. Layer creation and management
2. Experience with Yocto releases:
   c. Preferably Scarthgap or recent LTS
3. Strong debugging skills in Yocto build environment

Embedded Linux (MANDATORY)

1. Strong understanding of:
   a. Linux filesystem hierarchy
   b. Boot process (bootloader → kernel → rootfs)
   c. Process/service management (systemd)
2. Experience working with embedded boards / SoCs
   Debugging & Troubleshooting (CRITICAL)
3. Ability to debug:
   a. BitBake build failures
   b. Runtime issues on target hardware

Good to Have

1. Experience with:

• Kernel configuration and modules
  o Device tree basics
  o Exposure to Automotive / infotainment platforms (AAOS)

1. Familiarity with virtualization tools like crosvm
2. Experience with CI/CD (Jenkins, GitLab CI)

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