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Staff / Principal AI Engineer

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Inworld AI

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Location:
Switzerland

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Contract Type:
Employment contract

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Salary:

Not provided

Job Description:

Voice is one of the key interfaces humans will interact with AI at scale. To make this reality, we are building the engine for the next generation of AI-driven software. Our primary focus is pushing the boundaries of speech modeling (STT & TTS). We approach this by researching and utilizing ML ideas that allow us to achieve state-of-the-art results (we recently ranked #1 on Artificial Analysis for Text-to-Speech models).

Job Responsibility:

  • Researching, building, optimizing, and deploying the production ML systems that thousands of developers integrate with their systems
  • Focusing on the difficult research and engineering problems of building the engine for the next generation of AI-driven software

Requirements:

  • A PhD in a relevant technical field, or a BA/BS degree with equivalent research and/or engineering experience
  • 5+ years of combined experience in software development (e.g. with Python or C++) and applied ML engineering
  • Demonstrated experience applying or researching Machine Learning in one or more of the following domains: Speech or video processing
  • Natural Language Processing (NLP)
  • Action planning
  • Strong foundation in data structures, algorithms, and neural network architectures
  • Proficiency with ML frameworks such as PyTorch
  • Professional working proficiency in English

Nice to have:

  • A passion for learning and staying up-to-date with the latest advancements in ML/Voice AI research and its applications
  • Ability to work collaboratively in a fast-paced environment with shifting priorities
  • Familiarity with pre-training, fine-tuning, RLHF and evaluation of large language and speech models
  • Knowledge of working with embedded systems and/or running ML on edge devices
  • Strong background in mathematics and/or physics

Additional Information:

Job Posted:
January 19, 2026

Employment Type:
Fulltime
Work Type:
Remote work
Job Link Share:

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