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AssemblyAI Logo AssemblyAI · IT - Software Development

Senior Researcher

United States 210000.00 - 309000.00 USD / Year · Job Posted February 17, 2026
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Job Description

We are seeking a highly capable Senior Researcher to push the boundaries of streaming speech recognition and speech understanding. This role sits at the intersection of cutting-edge research and production impact—you'll develop novel architectures and algorithms that ship to millions of users. This is a unique opportunity to shape the next generation of Speech AI at a company experiencing rapid growth in one of the most dynamic fields in AI. You'll join the team developing Universal-Streaming—our production streaming ASR system—while exploring the frontier of LLM-based contextualization and real-time speech understanding.

Job Responsibility

  • Design and develop novel streaming ASR architectures, pushing the boundaries of accuracy-latency tradeoffs in production systems
  • Research and prototype LLM-assisted speech-to-text —exploring how large language models can enhance streaming speech recognition and understanding
  • Develop new algorithms for streaming speaker diarization, contextual biasing, and multilingual speech recognition
  • Drive research from initial experimentation through rigorous evaluation to production deployment, working closely with engineering teams
  • Conduct systematic experiments on internal and public benchmarks, with careful attention to evaluation methodology and statistical rigor
  • Contribute to technical publications and represent AssemblyAI's research at top venues
  • Collaborate on research direction and technical strategy, helping shape the roadmap for Speech AI capabilities

Requirements

  • Strong research background in speech recognition, with deep understanding of classic streaming architectures (RNN-T, CTC) and modern attention mechanisms
  • Expertise in LLMs and language modeling, with ability to bridge speech and language model research
  • Proficiency in PyTorch and JAX/Flax—you can move fluidly between frameworks and implement complex architectures from scratch
  • Experience with large-scale distributed training and the practical challenges of scaling speech models
  • Track record of publications at top venues (ICASSP, Interspeech, NeurIPS, ICML) or equivalent industry impact
  • Strong experimental methodology—systematic approach to ablations, careful baseline comparisons, and rigorous evaluation
  • Ability to translate research insights into production-ready solutions
  • comfort working at the interface of research and engineering
  • Excellent communication skills—can articulate complex technical ideas clearly and collaborate effectively across teams

What we offer

  • competitive equity grants
  • 100% employer-paid benefits
  • flexibility of being fully remote
  • 401k match up to 4% for US-based full time team members
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