Embedded Linux Software Engineer

Embedded Software Engineer Mid-level (L4 equivalent) 2-5 years

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The job description

Tech stack. C/C++, Embedded Linux, Yocto/Buildroot, Linux kernel drivers, device trees, systemd, D-Bus, Docker/containers on target

About the role

You will join a network equipment company building edge routers and gateways that run a full Linux distribution on custom ARM hardware. The embedded Linux team owns the board support package, kernel, and system services that every application team builds on. This role matters because the BSP is the foundation: boot reliability, driver correctness, and update safety here determine the uptime of the entire product line.

What you will achieve

Ship a Yocto-based BSP for a new ARM64 platform, achieving cold boot to network-ready in under 30 seconds with reproducible builds verified across the team, and a documented bring-up guide that lets any engineer reproduce the build from a clean checkout
Drive kernel driver development for custom peripherals (Ethernet PHYs, crypto accelerators, hardware watchdogs) with mainline-quality code, submitting at least one driver upstream, with code review feedback from the upstream community addressed and merged
Reduce field update failures by hardening the A/B partition scheme and rollback logic, targeting a 99.9% update success rate measured across the deployed fleet
Build device tree and bootloader (U-Boot) configurations that cut board bring-up time for new hardware variants to under a week, documented in a repeatable bring-up runbook
Own system-level debugging for the trickiest failures (kernel panics, memory pressure, thermal throttling), producing root-cause reports with fixes within 48 hours of reproduction

What you will bring

Must-haves

2-5 years working with Embedded Linux: building images, writing drivers, or maintaining BSPs for shipping products
Solid C skills and working C++, with kernel coding conventions including locking discipline, reference counting, and the device model
Hands-on Yocto Project or Buildroot experience, including custom layers, image recipes, and build reproducibility
Device tree authoring and debugging, plus U-Boot configuration and a working understanding of the full boot flow
Experience debugging with serial consoles, JTAG, ftrace, and kernel crash analysis including vmcore or ramoops where available
Familiarity with systemd, D-Bus, and inter-process communication patterns on embedded targets
Git-based workflow with Gerrit or pull-request review experience in a team that takes review seriously

Nice-to-haves

Upstream kernel contributions or maintainer relationships in a subsystem relevant to embedded
Experience with secure boot chains and measured boot on ARM, including Trusted Firmware-A integration
Networking stack tuning or DPDK exposure on embedded network appliances