Principal Research Engineer, Gemini Evals

Principal Research Engineer, Gemini Evals

Mountain View, California, US

This role is for a Principal level Research Engineer to lead the strategic development and execution of robust data pipelines, evaluation frameworks, and metric systems for the Gemini family of models and their associated product applications. As a key technical leader and individual contributor, you will apply deep expertise in large-scale machine learning, statistical rigor, and scalable engineering to ensure the safety, performance, and ethical alignment of our frontier AI systems before and after deployment.

Artificial Intelligence could be one of humanity's most useful inventions. At Google Deep Mind, we’re a team of scientists, engineers, machine learning experts, and more, working together to advance the state of the art in artificial intelligence. We use our technologies for widespread public benefit and scientific discovery, and collaborate with others on critical challenges, ensuring safety and ethics are the highest priority.

This role is part of the Gemini Evaluation research teams. The Gemini Evals team defines success for Gemini, establishes metrics to track progress, and provides clear, actionable insights to guide development. As a Research Engineer on this team, you will be at the forefront of building the data and evaluation systems that ensure the safety and quality of the Gemini family of models.

As a Principal Research Engineer, you will operate as a technical expert and leader within the Gemini Data and Evaluation team. Your primary focus will be to architect and execute the rigorous evaluation and data systems that underpin all major model release and product launch decisions for Gemini.

This is a highly cross-functional role requiring a blend of deep ML research, world-class software engineering, and strategic influence. You will define the data strategy for critical evaluation campaigns, design novel metrics to measure safety and performance at scale, and mentor a team of engineers and researchers to build high-quality, reproducible systems. You will be accountable for communicating complex evaluation results directly to leadership stakeholders to guide the responsible deployment of our most advanced AI technology.

Technical Leadership & Strategy

• Work on post-training evaluation and fine-tuning of large-scale models to improve performance and safety.
• Define and champion the technical roadmap for large-scale data and evaluation supporting the Gemini model family and its real-world applications
• Drive the research of novel, high-signal evaluation methods (automated, human-in-the-loop, and adversarial) to measure model capabilities, alignment, safety, and trustworthiness.
• Actively contribute to the broader scientific community by presenting findings on cutting-edge AI evaluation and safety methods.

In order to set you up for success as a at Google Deep Mind, we look for the following skills and experience:

• 10+ years of experience in researching engineering, with at least 5 years in a technical leadership role.
• Experience with large-scale machine learning systems, data processing pipelines and evaluation methodologies.
• Experience with large language models (LLMs) and their evaluation.
• Experience in post-training evaluation research

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