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Staff / Principal Machine Learning Engineer

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Inworld AI

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Location:
United States , Mountain View

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Contract Type:
Not provided

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Salary:

240000.00 - 385000.00 USD / Year

Job Description:

Our intelligent runtime must seamlessly connect to foundational models - whether via APIs or running locally - and autonomously evolve an application's logic. For this to be possible at scale, not only the runtime has to be reliable and flexible, but the models it uses need to be state-of-the-art quality, exceptionally fast, and cost-effective. We are seeking Staff and Principal level Machine Learning Engineers to solve these critical challenges. You will be responsible for researching, building, optimizing, and deploying the production ML systems that power our platform. Your work will focus on the difficult research and engineering problems of building the engine for the next generation of AI-driven software.

Job Responsibility:

  • Experiment with and implement cutting-edge ML models and techniques to advance our core AI capabilities
  • Train, evaluate, and optimize production-scale models and systems, focusing on quality, latency, cost, and on-device constraints
  • Collaborate with product and backend teams to translate novel ideas and research findings into robust, production-ready solutions

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 (Python, C++) and applied ML engineering
  • Demonstrated experience applying or researching ML in domains such as natural language processing, speech processing, and/or action planning
  • Strong foundation in data structures, algorithms, and neural network architectures
  • Proficiency with ML frameworks such as PyTorch

Nice to have:

  • A passion for learning and staying up-to-date with the latest advancements in ML 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
What we offer:
  • bonus
  • equity
  • benefits
  • relocation assistance

Additional Information:

Job Posted:
December 09, 2025

Employment Type:
Fulltime
Work Type:
On-site work
Job Link Share:

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