R&D – Multimedia Software Engineer (GStreamer)

Location: Chengdu, Sichuan, China

Department: Software Engineering

Work Location: onsite

Company:

Job Area:

Engineering Group, Engineering Group > Software Engineering

General Summary:

You will design, implement, optimize, and maintain GStreamer plugins for streaming, hardware-accelerated video/audio encoding & decoding, muxing/demuxing, camera integration, GPU/NPU AI inference, and end-to-end real-time multimedia pipelines.

You will deliver high-quality and time-critical multimedia features, quickly respond to customer issues, and collaborate closely with cross-functional teams including Camera, Video Codec, GPU/NPU, Hardware, BSP, and Test teams.

Your responsibilities will include:

• Design, develop, and maintain GStreamer plugins and elements for:

  Camera service

  Hardware-accelerated encoders/decoders (H.264, HEVC, VP9, AV1, AAC, etc.)

  Muxers/demuxers (MP4, MKV, PS/TS, etc.)

  AI inference pipelines with NPU/GPU acceleration

  Zero-copy pipelines (Camera → GPU → NPU → Display)

• Optimize pipelines for latency, throughput, CPU/GPU/NPU utilization, power efficiency, and memory footprint.
• Debug system-level multimedia issues involving drivers, HAL, middleware, and user-space frameworks.
• Work closely with hardware and firmware teams to enable new platform features and bring up next-generation SoCs.
• Contribute to architecture design, code review, documentation, and continuous integration.

Minimum Qualifications

• 1+ years’ experience in Linux system-level development.
• 2+ years’ experience in Embedded C/C++ programming.
• Excellent verbal and written English communication skills.
• Strong independent problem-solving abilities with a proactive attitude.
• Strong expertise in Linux IPC mechanisms, multithreading (mutexes, condition variables, atomics), and advanced memory management, including buffer lifecycle handling and zero‑copy data workflows.
• Proficiency with Linux debugging and analysis tools (GDB, strace, perf, valgrind, ftrace) and ability to interpret kernel logs, dmesg, and crash dumps.
• Experience with cross-compilation, toolchains, and embedded build systems (CMake, Yocto, Make).
• Hands-on experience with Git, branching strategies, and code review platforms (Gerrit/GitHub).
• Understanding of networking fundamentals relevant to media streaming (TCP/UDP, RTP/RTSP, sockets).
• Experience with performance profiling and identifying CPU, memory, or I/O bottlenecks.
• Basic knowledge of hardware acceleration concepts: DMA-BUF, GBM, hardware codec, GPU/NPU offload.

Preferred Qualifications

• In-depth understanding of video/audio codecs such as H.264/H.265, VP9, AV1, AAC.
• Experience with multimedia frameworks: GStreamer, FFmpeg, Android Multimedia Framework, or similar.
• Experience with Qualcomm CamX framework
• Understanding of camera pipelines: V4L2, ISP, sensor formats, RAW processing.
• Experience with AI/ML pipelines and model optimization: TFLite, TensorRT, ONNX Runtime, SNPE.
• Familiarity with GPU/NPU/DSP compute frameworks: OpenCL, Vulkan compute, CUDA.
• Knowledge of zero-copy rendering, buffer sharing, and hardware display pipelines (DRM/KMS).
• Experience with real-time video streaming pipelines and protocols (RTP/RTSP, HLS, DASH, WebRTC).
• Knowledge of deep learning workloads, model architectures, quantization, and performance tuning.
• Prior experience profiling multimedia workloads on embedded hardware

Education Requirements

BS with 3+ years experiences or MS.

Major: Electrical Engineering, Computer Engineering, Computer Science, Software Engineering

Minimum Qualifications:

• Bachelor's degree in Engineering, Information Systems, Computer Science, or related field and 2+ years of Software Engineering or related work experience.
OR
Master's degree in Engineering, Information Systems, Computer Science, or related field and 1+ year of Software Engineering or related work experience.
OR
PhD in Engineering, Information Systems, Computer Science, or related field.

• 2+ years of academic or work experience with Programming Language such as C, C++, Java, Python, etc.

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