Principal Machine Learning Engineer

About the role

We are looking for a Principal AI Research Engineer to set the technical direction for our most ambitious AI initiatives. You will lead research on large language models, speech understanding, and retrieval systems—then translate that research into production capabilities at scale.

What you'll do

• Define and drive the research roadmap for core AI capabilities spanning LLMs, ASR/speech understanding, retrieval-augmented generation, and agentic systems
• Design, train, fine-tune, and evaluate state-of-the-art models, taking them from prototype to robust, production-grade systems
• Lead the architecture of scalable training and inference pipelines that operate reliably on real customer-scale data
• Establish rigorous evaluation frameworks, benchmarks, and quality bars for model performance, safety, and reliability
• Partner closely with product, platform, and ML engineering teams to ship research into customer-facing features

What you need

• Machine learning
• LLMs
• Deep learning
• NLP

Good to have

• Python
• PyTorch