Senior Engineer

Senior Firmware Engineer – Audio Codec (Rust)

Experience: 8–14 Years

Location: [India(preferably Chennai) Onsite/Remote/Hybrid]

________________________________________

Job Description:

We are seeking a highly skilled Firmware Engineer with strong expertise in Audio Codec development and Rust programming. The candidate will design, implement, and optimize low-level firmware for audio codec solutions, ensuring high performance, reliability, and compliance with multimedia and embedded standards.

________________________________________

Key Responsibilities:

• Design and develop firmware modules for audio codec drivers (encode/decode, signal processing, streaming).

• Implement low-level firmware in Rust for real-time audio pipelines.

• Work on audio data paths, DSP integration, and codec algorithms.

• Develop and maintain device drivers, HAL (Hardware Abstraction Layer), and board support packages.

• Optimize memory, performance, and power consumption for embedded audio solutions.

• Debug and troubleshoot firmware issues using JTAG, logic analyzers, oscilloscopes.

• Collaborate with hardware, DSP, and system teams to integrate codecs into target platforms.

• Perform unit, integration, and system-level testing for audio firmware components.

• Contribute to architecture design, code reviews, and documentation.

• Ensure compliance with industry standards (ALSA, AV frameworks, A2DP, VoIP, Dolby, AAC, MP3, etc.).

________________________________________

Required Skills & Qualifications:

• Bachelor's/Master's degree in Electronics, Computer Engineering, or related field.

• 8–14 years of experience in embedded firmware development, with at least 3+ years in audio codec domain.

• Strong expertise in Rust programming for embedded systems (memory safety, concurrency, async programming).

• Experience with C/C++ for low-level embedded development (interfacing with Rust).

• In-depth knowledge of audio codecs: AAC, MP3, SBC, Opus, Dolby, FLAC, PCM.

• Experience in I2S, I2C, SPI, DMA, USB Audio, ALSA/ASoC (Linux Audio Subsystem).

• Strong knowledge of RTOS/Linux kernel driver development for audio.

• Hands-on with debugging tools (JTAG, Lauterbach, GDB).

• Familiarity with version control (Git), CI/CD pipelines, and automated testing.

• Strong problem-solving and performance optimization skills.

________________________________________

Good to Have:

• Experience with cross-compilation toolchains and build systems (CMake, Cargo, Yocto).

• Knowledge of real-time audio streaming frameworks (PulseAudio, PipeWire, JACK).

• Familiarity with DSP programming or ARM Cortex-M/A architectures.

• Exposure to Rust embedded ecosystem (e.g., embedded-hal, no_std, RTIC).

• Knowledge of Audio Quality testing methodologies (MUSHRA, PESQ, POLQA).

• Prior experience with Dolby/DTS certification processes.

________________________________________

Soft Skills:

• Strong collaboration and communication skills.

• Ability to work in cross-functional teams with hardware, software, and QA.

• Proactive in problem-solving and mentoring junior engineers.

One SR - Firmware Engineer – Audio Codec (Rust)

Experience: 6–9 Years

Location: [India(preferably Chennai) Onsite/Remote/Hybrid]

Key Responsibilities:

• Design and develop firmware modules for audio codec functionality (encode, decode, streaming, signal processing).
• Implement low-level device drivers and HAL (Hardware Abstraction Layer) in Rust, with C/C++ interoperability where required.
• Work with embedded communication protocols (I2S, I2C, SPI, DMA, USB Audio).
• Optimize performance, memory footprint, and power efficiency of audio pipelines.
• Debug and troubleshoot firmware using JTAG, GDB, Lauterbach, logic analyzers, and oscilloscopes.
• Collaborate with hardware/DSP/system engineers to integrate codecs on target platforms.
• Support unit, integration, and regression testing for audio firmware validation.
• Ensure compliance with audio standards (AAC, MP3, SBC, Opus, PCM, Dolby).
• Contribute to code reviews, technical documentation, and best practices adoption.

Required Skills & Qualifications:

• Bachelor's/Master's degree in Electronics, Computer Engineering, or related field.
• 5–7 years of embedded firmware development experience, with 2+ years in audio codec projects.
• Strong hands-on expertise in Rust for embedded systems (no_std, concurrency, async programming).
• Good working knowledge of C/C++ for low-level embedded development.
• Familiarity with audio codec standards and algorithms (compression, decoding, error handling).
• Experience with RTOS (FreeRTOS, Zephyr) or Embedded Linux (ALSA/ASoC).
• Practical experience with cross-compilation, build systems (Cargo, CMake, Yocto).
• Strong debugging skills using JTAG/GDB and embedded analysis tools.

Good to Have:

• Exposure to DSP integration or ARM Cortex-M/A architectures.
• Knowledge of Linux audio frameworks (PulseAudio, PipeWire, JACK).
• Familiarity with audio quality testing tools (MUSHRA, PESQ, POLQA).
• Prior experience with Dolby/DTS certification or multimedia compliance.
• Understanding of secure firmware development practices.

Soft Skills:

• Strong analytical and debugging abilities.
• Good communication skills to work with global teams.
• Proactive and eager to adopt new Rust embedded ecosystem tools and practices.

Senior Test Engineer – Audio

Experience: 9–12 Years

Location: [India(preferably Chennai) Onsite/Remote/Hybrid]

Key Responsibilities:

• Perform functional and regression testing of Dolby audio codecs (encode, decode, playback, streaming).
• Conduct audio quality testing (subjective listening + objective metrics) to validate Dolby features.
• Validate Dolby codecs such as Dolby Digital (AC-3), Dolby Digital Plus (E-AC-3), Dolby TrueHD, Dolby Atmos.
• Execute compliance and certification testing as per Dolby standards.
• Prepare and execute test plans, test cases, and automation scripts for Dolby codec validation.
• Perform bitrate, channel mapping, latency, and performance testing on various audio playback devices.
• Work with tools for audio capture, analysis, and measurement (MATLAB, Adobe Audition, Audio Precision, Audacity).
• Collaborate with firmware, DSP, and system teams to debug codec-related issues.
• Document defects and maintain reports in JIRA, ALM, TestRail, or equivalent tools.
• Ensure compliance with Dolby certification requirements and OEM deliverables.

Required Skills & Qualifications:

• Bachelor's/Master's degree in Electronics, Computer Science, Acoustics, or related field.
• 4–8 years of experience in audio codec/system testing, with specific focus on Dolby codecs.
• Hands-on testing experience with Dolby Digital, Dolby Digital Plus, Dolby Atmos, Dolby TrueHD.
• Knowledge of audio compression techniques, multichannel audio (5.1, 7.1), and surround sound systems.
• Familiarity with audio standards (ITU, ETSI, MPEG).
• Experience with subjective audio testing methodologies (e.g., MUSHRA, ABX testing).
• Exposure to audio quality measurement tools (PESQ, POLQA, Audio Precision).
• Scripting knowledge in Python/MATLAB for audio test automation.
• Experience with embedded audio platforms, multimedia frameworks (GStreamer, FFmpeg), or infotainment systems.

Good to Have:

• Prior experience in Dolby certification processes.
• Familiarity with Bluetooth audio (A2DP, LDAC, aptX) and HDMI ARC/eARC audio testing.
• Experience with voice assistants, OTT platforms, or home theater systems.
• Knowledge of DSP fundamentals and ARM Cortex architectures.

Soft Skills:

• Excellent listening ability and sensitivity to audio artifacts.
• Strong problem-solving and debugging skills.
• Ability to work across global cross-functional teams.
• Good documentation and communication skills.