Linux Kernel Developer (Mid-to-Senior Level)
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About the role
What you will do:
* Design, develop, and maintain Linux kernel code, including drivers, subsystems, and kernel modules
* Port, configure, and optimize the Linux kernel for custom hardware platforms
* Write and maintain device drivers for a range of interfaces (e.g., I2C, SPI, UART, USB, PCIe, Ethernet)
* Debug and resolve kernel panics, race conditions, memory issues, and other low-level system failures
* Profile and optimize kernel and driver performance, including boot time, latency, and power consumption
* Work with bootloaders (e.g., U-Boot) and board bring-up for new hardware revisions
* Collaborate with hardware engineers during board bring-up and hardware/software integration
* Upstream patches where appropriate, and track relevant upstream kernel changes and CVEs
* Contribute to kernel configuration, build systems (e.g., Yocto, Buildroot), and CI integration
* Document kernel architecture decisions, driver interfaces, and debugging procedures in a way that's practical and reusable
What you bring to this role:
* 5+ years of experience developing in C, with deep familiarity with Linux kernel internals
* Proven experience writing and debugging Linux device drivers and kernel modules
* Solid understanding of
* Kernel subsystems (memory management, scheduling, filesystems, networking)
* Linux boot process and bootloaders
* Concurrency, locking, and interrupt handling in kernel space
* Experience with embedded Linux build systems (Yocto, Buildroot, or similar)
* Comfort working directly with hardware during bring-up, debugging with tools like JTAG, oscilloscopes, or logic analyzers
* Strong debugging skills using tools such as gdb, ftrace, perf, kgdb, or crash dump analysis
* Comfortable working independently and taking ownership in a lean startup environment
Bonus points for the following:
*Upstream Linux kernel contribution experience
* Experience with real-time Linux (PREEMPT_RT) or other real-time operating systems
* Familiarity with security-hardening practices for embedded Linux (secure boot, kernel hardening)
* Experience with version control systems (Git) and kernel patch workflows (mailing lists, git send-email)
* Exposure to multiple CPU architectures (ARM, RISC-V, x86)
* Experience with CI/CD pipelines for embedded or system-level software
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