Lead AI Translation Research Engineer

Phrase; United States; Remote; USD 140,000 - 205,000; Full time

Job summary

Phrase is seeking a Senior AI Researcher to lead a major research workstream focused on fine-tuning LLMs for high-quality translation and language tasks. You will design evaluation frameworks, build agentic workflows, and collaborate with Product and Engineering to translate research into production capabilities.

You will mentor junior researchers, contribute to hiring, and help shape the future of our language intelligence platform, working across a global, distributed team.

Qualifications

• PhD in Computer Science or Computational Linguistics (or MSc with equivalent hands-on research).
• Strong hands-on experience fine-tuning LLMs or transformer models.
• Proven NLP expertise in translation, MT evaluation, or related fields.

Responsibilities

• Design, train, and evaluate LLMs for translation and language-quality tasks.
• Build and evaluate agentic workflows for multi-step reasoning and tool use.
• Own a significant research workstream from data collection to production integration.
• Mentor junior researchers and contribute to hiring discussions.

Skills

LLM fine-tuning

NLP/ML expertise

Python

Evaluation frameworks

Research leadership

Education

PhD in CS/Computational Linguistics

Tools

Hugging Face

PyTorch

Weights & Biases

vLLM

AWS SageMaker

GCP Vertex AI

Job description

Phrase is seeking a Senior AI Researcher to lead a major research workstream focused on fine-tuning LLMs for high-quality translation and language tasks. You will design evaluation frameworks, build agentic workflows, and collaborate with Product and Engineering to translate research into production capabilities.

You will mentor junior researchers, contribute to hiring, and help shape the future of our language intelligence platform, working across a global, distributed team.