Neuphonic

About the Company

Neuphonic is building the best ultra low latency text-to-speech system to create the most natural, responsive conversations with AI possible. We are revolutionising AI interaction by redefining what it means to have a voice. We’re creating a future where engaging with AI feels intuitive and effortless, that AI can act to make lives easier, and ultimately that people will look at their phones less and communicate more.

Listed Jobs

Company Name

Neuphonic

Job Title

Machine Learning Researcher

Job Description

**Job Title:** Machine Learning Researcher **Role Summary:** Conduct cutting‑edge research and development on speech synthesis for on‑device voice AI. Advance speech processing techniques, build high‑quality proprietary speech datasets, and prototype models that run efficiently on CPUs. **Expactations:** - Deliver publishable research outcomes and prototype implementations. - Collaborate with engineering and product teams to integrate research into products. - Contribute to open‑source codebases and internal repositories. - Stay current with state‑of‑the‑art multimodal LLMs and speech technologies. **Key Responsibilities:** - Design, implement, and evaluate novel speech synthesis algorithms. - Develop and fine‑tune models using PyTorch, JAX, or TensorFlow. - Create, curate, and maintain proprietary speech datasets for training and testing. - Conduct experiments with multimodal large language models (vision, audio, speech). - Benchmark model performance, optimize for CPU inference, and document results. - Publish research findings internally and, when appropriate, externally. - Participate in code reviews and maintain clean, reproducible code in GitHub. **Required Skills:** - Strong expertise in speech synthesis and speech processing. - Proficiency with Python and ML frameworks (PyTorch, JAX, TensorFlow). - Experience with multimodal LLMs and audio‑visual data pipelines. - Ability to design experiments, analyze results, and iterate quickly. - Solid understanding of data collection, annotation, and dataset management. - Good communication skills for presenting research and collaborating cross‑functionally. **Required Education & Certifications:** - Minimum MSc (or equivalent) in Machine Learning, Speech & Language Processing, Computer Science, Electrical Engineering, or a closely related field. - At least 2 years of professional experience in machine learning or speech research. No specific certifications required.

London, United kingdom

On site

Junior

17-12-2025