Lead Embedded C++ Engineer with Kernel Experience

Role: Lead Embedded C++ Engineer with Kernel Experience
Location: Remote
Job Type: Contract

Core Responsibilities

1. ChromeOS Platform & C++ Systems Engineering

Large-Scale C++ Development:

Author, modify, and maintain production C++ code within massive, multi-million-line codebases (Chromium / ChromeOS monolithic source tree).

Userland Daemons & IPC:

Design and debug userland system daemons using asynchronous I/O, event loops (libchrome), and inter-process communication protocols (DBus and Mojo).

OS Build & Tooling Maintenance:

Manage and configure Portage/Gentoo-based build systems, create custom board overlays, handle cross-compilation environments, and

maintain board image deployment/flashing workflows (e.g., custom image builds, Hotrod, cros_sdk).

2. Linux Kernel & Hardware-Adjacent Debugging

Kernel Triage & Patching:

Triage, debug, and patch Linux kernel issues across LTS kernel branches (specifically 5.10, 5.15, and newer). Interpret automated crash reports (syzbot / syzkaller),formulate fixes,

and submit upstream or downstream patches.

Peripheral Bus & Protocol Analysis:

Perform hardware-adjacent debugging using USB protocol analyzers, logic analyzers, and bus debugging tools (I2C, SPI, PCIe, USB UVC/UAC)

to resolve peripheral interoperability, audio/video capture, and hotplugging issues on CfM platforms.

3. Engineering & Release Triage

P0/P1 Regression Escalations:

Lead rapid triage for high-severity P0/P1 production regressions and system crashes across release milestone channels (Canary, Dev, Beta, Stable).

Crash Dump Analysis:

Analyze kernel panics, userspace stack traces, minidumps, and system logs to pinpoint root causes and quickly author, verify, and land bug fixes.

Release Backporting:

Safely backport critical stability and security fixes across multiple ChromeOS milestone branches without introducing regressions.

Technical Requirements & Qualifications

C++ Systems Programming:

Extensive experience in modern C++ (C++14/17/20) within large codebases. Deep understanding of asynchronous programming,

multi-threading primitives, memory models, and IPC design (DBus,

Mojo).

Linux Kernel Engineering:

Direct experience triaging and fixing bugs in the Linux kernel (5.10 / 5.15 LTS). Capability to interpret syzkaller/syzbot reproducer scripts and stack

traces to fix race conditions, memory corruption, or driver panics.

ChromeOS / Gentoo Infrastructure:

Demonstrated proficiency with Gentoo Portage (ebuild files, board overlays), cross-compilers, and building/flashing custom ChromeOS board images.

Hardware Triage Tooling:

Hands-on experience using physical bus tools (USB analyzers, Oscilloscopes/Logic Analyzers) alongside system utilities (ftrace, perf, gdb, strace, dmesg).

Critical Issue Response:

Proven track record handling production emergencies (P0/P1 regressions), conducting root-cause analysis on stack traces/dumps, and cherry-picking/backporting patches across active release branches.

Chrome for Meetings (CfM) Experience:

Familiarity with conference room media pipeline architecture, including V4L2, ALSA, PipeWire, USB video/audio classes (UVC/UAC), and HDMI display pipelines.

Upstream Contributions:

Track record of landing commits in upstream

kernel.org or the Chromium/ ChromiumOS repositories.

Automated Testing:

Experience writing unit tests, end-to-end integration tests (Tast

framework / Go / Python), and regression suites for platform daemons.

Thanks and Regards,

Vivek
Team Lead

Edge Global

1604 Spring Hill Road, Suite 221, Vienna, VA 22182

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