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L&T Technology Services

Vasanthanagar / Global

Embedded Linux Engineer - Boot Time Optimization

Job Description

Job Description

Embedded Linux Engineer – Boot Time Optimization

Location: Bangalore

Experience: 5+ Years

Education: B.E / B.Tech / M.E / M.Tech

Top Mandatory Skills

  • Embedded Linux System Software Development
  • Linux Boot Time Analysis & Optimization
  • Yocto Project (BitBake, Recipes, Image Optimization)
  • Xen Hypervisor (Dom0 Preferred)
  • Linux Kernel Debugging & Performance Tuning
  • Strong C Programming

Key Technical Skills

  • Linux Boot Flow (Bootloader, Kernel, Initramfs, Systemd)
  • Boot Time Optimization in Virtualized Environments
  • Xen Dom0 / Host OS Optimization
  • Kernel Profiling & Debugging
  • Power & Performance Optimization
  • S0ix, Suspend-to-RAM (S2RAM)
  • Embedded Linux BSP & Platform Bring-up

Job Responsibilities

  • Analyze and optimize Linux boot time for embedded and virtualized platforms.
  • Improve Dom0/Host OS startup performance in Xen-based systems.
  • Optimize Yocto images, recipes, services, and systemd configurations.
  • Debug kernel, driver, and boot-sequence bottlenecks.
  • Investigate deferred probes, initcall ordering, and service startup dependencies.
  • Tune power management and performance for cold boot, warm boot, and low-power states.
  • Collaborate with platform, kernel, virtualization, and validation teams to achieve boot-time targets.

Good to Have

  • Automotive Linux / IVI Platforms
  • Xen Hypervisor Development
  • QNX Hypervisor or KVM
  • Open Source Linux Contributions
  • Graphics, Display, Storage, and Networking Stack Integration
  • DMA, Interrupt Handling, IPC Optimization

Debug & Profiling Tools

  • ftrace
  • systemd-analyze
  • Bootchart
  • perf
  • Kernel logs / trace events
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