Senior Deep Learning Scientist, Speech AI

6 months ago

Shanghai, China NVIDIA Full time

Widely considered to be one of the technology world’s most desirable employers, NVIDIA is an industry leader with groundbreaking developments in High-Performance Computing, Artificial Intelligence and Visualization. The GPU, our invention, serves as the visual cortex of modern computers and is at the heart of our products and services. GPU deep learning ignited modern AI — the next era of computing — with the GPU acting as the brain of computers, robots, autonomous cars and conversational AI that can perceive and understand the world. Today, we are increasingly known as “the AI computing company.” We're looking to grow our company, and build our teams with the most resourceful people in the world. Join us at the forefront of technological advancement.

NVIDIA is looking for Speech Data Scientists to develop high-impact, high-visibility Speech AI product "Riva" & improve the experience of millions of customers. If you're creative & passionate about solving real world conversational AI problems, come join our Riva Product engineering team. For more details on Riva check

What you’ll be doing:

  • Train Speech Recognition (Acoustic, Language, Punctuation), Speech-to-text translation (AST), and Speech-to-speech (S2S) translation models.

  • Develop and maintain speech processing blocks and tools (alignment, segmentation, normalization etc.)

  • Improve processes for speech data processing, augmentation, filtering & Training sets preparation.

  • Measure and benchmark model performance.

  • Gather knowhow on speech datasets for training & evaluation.

  • Collaborate with various teams on new product features and improvements of existing products.

  • Help innovate, identify problems, recommend solutions and perform triage in a collaborative team environment.

  • Lead and mentor junior team members

What we need to see:

  • Master’s degree (or equivalent experience) or PhD in Computer Science, Electrical Engineering, Artificial Intelligence, or Applied Math with 5+ years of experience.

  • Excellent programming skills in Python, Strong fundamentals in Programming, optimizations and Software design.

  • Hands-on experience on Speech Technologies like Automatic Speech Recognition, Speech Command detection, Text to Speech, Speaker Recognition and Identification, speaker diarization, Noise robustness Techniques, Voice activity detection, End of utterance detection etc.

  • Strong knowledge of RNN-T, CTC, and transformer decoders.

  • Strong knowledge of ML/DL techniques, algorithms and tools with exposure to CNN, RNN (LSTM), Transformers.

  • Know-how of Deep learning applications to Speech and NLP

  • Experience with leading efforts and/or teams developing Speech AI products.

  • Exposure to basic speech digital signal processing and feature extraction techniques like FFT, MFCC, Mel Spectrogram, etc.

  • General background around version control and code review tools like Git, Gerrit, Gitlab.

  • Strong collaborative and interpersonal skills, specifically a proven ability to effectively guide and influence within a dynamic matrix environment.

Ways to stand out from the crowd:

  • Experience developing end-to-end and unified speech recognition and translation systems for multiple languages

  • Strong C++ programming skills.

  • Familiarity with GPU based technologies like CUDA, CuDNN and TensorRT

  • Background with Dockers and Kubernetes

  • Background with deploying machine learning models on data center, cloud, and embedded systems

With highly competitive salaries and a comprehensive benefits package, NVIDIA is widely considered to be one of the technology industry's most desirable employers. We have some of the most forward-thinking and hardworking people in the world working with us and our engineering teams are growing fast in some of the hottest state of the art fields: Deep Learning, Artificial Intelligence, Speech AI and Large Language Models. If you're a creative engineer with a real passion for robust and enjoyable user experiences, we want to hear from you.

NVIDIA is committed to encouraging a diverse work environment and proud to be an equal opportunity employer. As we highly value diversity in our current and future employees, we do not discriminate (including in our hiring and promotion practices) on the basis of race, religion, color, national origin, gender, gender expression, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law.

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