The Job

Applied Scientist II, Alexa International Tech

Teknik, data och digitalt · Data, AI och analys · Maskininlärning · Datavetenskap · Artificiell intelligens

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I korthet

Alexa International is seeking an Applied Scientist II with expertise in Large Language Models, ASR, TTS, and Speech to Speech models. The role involves developing novel algorithms and modeling techniques to advance state-of-the-art speech and text technologies for international customers. A PhD or Master's degree with 4+ years of relevant experience and strong programming skills in Python, Java, or C++ is required.

Ansvarsområden

  • Analyze, understand, and model customer behavior and the customer experience based on large-scale data.
  • Build novel online & offline evaluation metrics and methodologies for multimodal personal digital assistants.
  • Drive research in ASR, TTS, and Speech-to-Speech (S2S) model training and fine-tuning.
  • Advance multilingual speech recognition and synthesis using LLM-based architectures.
  • Fine-tune/post-train LLMs using techniques like SFT, DPO, RLHF, and RLAIF.
  • Collaborate with partner teams on evaluation frameworks and post-training methodologies.
  • Communicate solutions clearly to partners and stakeholders.
  • Contribute to the scientific community through publications and community engagement.

Krav

  • 3+ years of building machine learning models for business application experience.
  • PhD, or Master's degree and 4+ years of CS, CE, ML or related field experience.
  • Experience in patents or publications at top-tier peer-reviewed conferences or journals.
  • Experience in any of the following areas: algorithms and data structures, parsing, numerical optimization, data mining, parallel and distributed computing, high-performance computing.
  • Experience programming in Java, C++, Python or related language.
  • Deep expertise in ASR/TTS architectures, end-to-end speech models, and LLM integration with speech systems.

Önskade kvalifikationer

  • Experience using Unix/Linux.
  • Experience building machine learning models or developing algorithms for business application.
  • Deep expertise in state-of-the-art LLM architectures, training, evaluation, and post-training techniques (SFT, DPO, RLHF, RLAIF).

Förmåner

  • Inclusive culture empowers Amazonians to deliver the best results for our customers.
  • Workplace accommodations and adjustments for individuals with disabilities during the application and hiring process are available.
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Företag

Amazon

Publicerade jobb

för 1 vecka sedan

Anställningstyp

Heltid

Arbetsform

På plats

Erfarenhetsnivå

Senior

Platser

Bengaluru, India

Kvalifikation

Doktorand, Masterexamen, Kandidatexamen

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