WHOOP

Technology

SeniorMachineLearningEngineer,AIPlatform

$150–210k Boston, Massachusetts, United States FULL TIME
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior Machine Learning Engineer, AI Platform at WHOOP. Skills: Machine Learning, AI Platform, Large language models. Design production AI systems. Build production AI systems”

Industry & Context.

Technology
Problems you'll solve

Make engineering tradeoffs

What They're Looking For.

Must Have

3+ years applied ML, Hands-on LLM experience, Solid ML fundamentals, Proficiency in data manipulation, Familiarity with secure AI

Nice to Have

PhD preferred, GCP Professional Data Engineer, AWS Data Analytics, Databricks Certified, Dbt Certified

What You'll Do.

Design production AI systems

Build production AI systems

Operate production AI systems

Lead AI system initiatives

Operationalize fine-tuning workflows

Operationalize evaluation workflows

Develop experimentation tooling

Develop evaluation frameworks

Develop model deployment tooling

Mentor other engineers

Share AI/ML best practices

How You'll Work.

Team & Collaboration

Partner with product; Partner with data science; Cross-functional teams

Communication Scope

Influence across teams; Drive alignment

Process & Methodology

Problem definition, Dataset design, Lifecycle management

Full Job Description

At WHOOP, we’re on a mission to unlock human performance and healthspan. WHOOP empowers members to perform at a higher level and live longer by using AI to transform continuous physiological data into clear insights and actionable recommendations. Our AI platform is central to this mission, turning raw physiological signals into trusted, personalized guidance that members can act on every day.   WHOOP is hiring a Senior AI/ML Engineer to help scale the intelligence layer behind WHOOP’s AI-powered experiences, including WHOOP Coach, AI-powered Support, and new intelligent features across the product. In this role, you will own core components of the AI Platform that power our internal AI Studio https://engineering.prod.whoop.com/ai-studio/: evaluation pipelines, fine-tuning workflows, LLM observability, and experimentation tooling. You will partner closely with product and data science to translate real member needs into reliable, impactful AI systems that improve continuously based on real-world usage. RESPONSIBILITIES: - - Design, build, and operate production AI systems and scaffolding around language models that power conversational, predictive, and generative capabilities across WHOOP products. - Lead end-to-end AI system initiatives spanning problem definition, data flows, dataset design, evaluation harnesses, deployment, and iteration in close partnership with data science and product. - Build and maintain pipelines for collecting, curating, and reshaping messy, multi-source data into high-quality, well-structured training and evaluation datasets for language model–based systems. - Operationalize fine-tuning and evaluation workflows for large language models behind member-facing features such as WHOOP Coach and AI Support, including defining datasets, labels, and taxonomies that reflect real member needs. - Develop tooling and frameworks that make experimentation, offline/online evaluation, and model deployment faster, safer, and more repeatable, including rob

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