221K–331K USD / year
AI Research Engineer, Speech
AIWorkplace — New York, NY; Pittsburgh, PA
Published on 2026-11-05
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About this role
Develop and train speech models for Duolingo learners, including models that understand non-native speech. The role spans the machine learning lifecycle, from training data and fine-tuning through evaluation, deployment, and monitoring, and includes leadership and mentoring responsibilities.
About the company
Duolingo is a language-learning platform that offers a variety of courses and tools to help users learn new languages through interactive exercises and innovative technologies. The company also develops educational products like Duolingo Math and employs a range of professionals to enhance its services.
The team
Speech team
Stack
ASRTTSspeech-to-speech modelsaudio tokenizationreinforcement learning
What you'll do
- Develop and train speech and large-scale neural network models
- Work with cross-functional teams to align model outputs with product needs and company objectives
- Contribute to strategic product and business decisions as part of the Speech leadership group
- Keep up with advances in speech machine learning and apply them to projects
- Mentor team members
- Deliver high-quality, scalable, and efficient machine learning solutions
What we're looking for
- Proven AI research engineering experience in speech recognition, TTS, LLMs, or related fields
- Experience training and fine-tuning large models in applied settings
- Advanced degree in computer science, engineering, or a related field focused on machine learning or AI, or equivalent experience
- Strong leadership and communication skills
- Deep understanding of machine learning concepts, frameworks, and best practices
Benefits
- Equity compensation