Job Description
Develop and optimize audio processing algorithms and firmware for smart camera and doorbell products, focusing on high-quality sound, echo cancellation, and noise reduction within embedded Linux systems.
Key Responsibilities
- Design and implement audio processing algorithms, including echo cancellation, noise reduction, and automatic gain control, for embedded devices.
- Collaborate with hardware and software engineers to develop and manufacture embedded Linux-based devices.
- Develop features that integrate with cloud-based systems.
- Optimize and test audio processing pipelines to ensure high-quality audio performance in consumer products.
- Implement adaptive filters and DSP solutions for real-time audio processing.
- Ensure audio hardware and firmware meet quality standards through testing and validation.
Requirements
- Master's degree in Computer Science, Electrical Computer Engineering, or a related field or equivalent experience
- 5-15 years of experience in audio algorithm development for consumer products
- Must have experience working on audio processing pipelines for one or more devices
- Expertise in digital signal processing (DSP) techniques and audio algorithms, such as Acoustic Echo Cancellation (AEC), Active Noise Reduction (ANR), and Automatic Gain Control (AGC)
- Strong proficiency in programming languages like C and C++
- Hands-on experience with real-time operating systems (RTOS), microcontroller programming, and hardware-software interaction
- Knowledge of audio codecs such as µLaw, aLaw, Opus, AAC, and MP3
- Experience with Linux-based operating systems for embedded development
- In-depth understanding of adaptive filters and their implementation in DSP for echo cancellation
- Experience designing audio processing pipelines for embedded systems
- Familiarity with electronic circuits, microprocessors, and digital analog audio paths
- Familiarity with development tools such as IDEs, version control systems (e.g., Git), and bug tracking systems
- Strong problem-solving skills and attention to detail
- Good understanding of data structures and algorithms
- Excellent verbal and written communication skills
- Experience with Agile or Scrum methodologies
- Understanding of audio testing requirements, such as minimizing vibration and audio feedback paths in enclosed systems
- Knowledge of basic speaker chamber design for optimal frequency response and vibration isolation (e.g., rubber mounting techniques to prevent mechanical noise pickup)
Benefits & Perks
Compensation/salary range: $140,000 - $160,000 USD
Work schedule: Paid holidays, wellness time, and vacation increasing with tenure
Work environment perks: Casual dress work environment, well-being resources and activities, company-paid disability and life insurance, FSAs
Additional benefits: Subsidized medical plan options, HSA with generous company contribution, 401(k) with employer match, paid maternity and bonding leave
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