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Senior Embedded Linux Developer (Audio Platforms)
PML Sound International
Ottawa, CAN
Full-time
Senior · 5+ years experience
Onsite
CAD 110000-145000 yearly / year
Discovered 3 weeks ago
LinuxYocto ProjectBitBakeNXP i.MXALSAPipeWire
Free
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LinuxYocto ProjectBitBake
Key Skills for This Role
LinuxYocto ProjectBitBakeNXP i.MXALSAPipeWire
Full Job Posting
- Platform Ownership: Maintain, customize, and optimize the Yocto-based Linux distribution for NXP i.MX and similar SoCs. You will manage BitBake recipes, layers, device tree overlays, and secure boot configurations.
- Audio Subsystem Integration: Dive deep into the Linux audio stack . You will configure ALSA System-on-Chip (ASoC) drivers, debug DAI links (I2S/TDM), and ensure userspace routing using PipeWire and WirePlumber is robust and glitch-free.
- Vendor SDK Integration: You will be the expert at merging complex vendor SDKs (e.g., StreamUnlimited, NXP) with our custom codebase. You will handle kernel upgrades, resolve upstream conflicts, and patch drivers to support our specific use cases.
- Hardware Bring-up: Work side-by-side with Electrical Engineers to validate new boards. Use logic analyzers and oscilloscopes to verify clocks, digital interfaces, and driver initialization sequences.
- System Reliability & Performance: Act as the lead debugger for complex system failures. You will use tracing tools such as ftrace, perf, Wireshark, and LTTng to root-cause latency issues, eliminate XRUNs (audio dropouts), and optimize boot time and power consumption.
- 5+ years of Embedded Linux development experience , with substantial experience in audio or multimedia systems .
- Linux Audio Deep Dive: Expert knowledge of ALSA System-on-Chip (ASoC) . You must be comfortable configuring asound.conf, writing or patching machine drivers, debugging DAI links (I2S/TDM), and troubleshooting clock synchronization issues.
- Multimedia Frameworks: Strong experience with GStreamer and/or PipeWire . You understand how to construct and debug complex graphs, manage buffer negotiation, and integrate proprietary plugins such as NXP-optimized components into the pipeline.
- Proprietary Stack Integration: Proven experience integrating binary-only libraries, proprietary codecs, or DSP components into embedded Linux systems. Able to troubleshoot ABI/API compatibility, dynamic linking, dependencies, resource conflicts, and runtime integration issues.
- Experience integrating or maintaining StreamUnlimited StreamSDK or comparable commercial embedded audio streaming platforms .
- BSP & Build Systems: Expert proficiency with the Yocto Project and BitBake. You can write recipes, manage layers, and resolve dependencies for custom images on NXP i.MX platforms.
- System Performance: Ability to root-cause XRUNs (audio dropouts) and latency jitter. You are proficient with tracing tools such as LTTng, ftrace, perf, and Wireshark to analyze system behavior.
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