WHOOP

Senior Machine Learning Engineer, AI Platform

WHOOP
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2 months ago
Boston, MA, USASenior
H1B sponsor

Base Salary

$150k - $210k/yr

Responsibilities

  • Design, build, and operate production AI systems and language-model scaffolding for conversational, predictive, and generative product capabilities.
  • Lead end-to-end AI initiatives from problem definition and data flows through dataset design, evaluation, deployment, and iteration.
  • Build pipelines that collect, curate, and transform multi-source data into training and evaluation datasets.
  • Operationalize fine-tuning and evaluation workflows for language models supporting WHOOP Coach and AI Support.
  • Develop experimentation, evaluation, deployment, and production observability tooling for AI features.
  • Create feedback loops connecting member interactions, offline evaluations, and training-data updates.
  • Mentor engineers and data scientists and help improve technical practices across the AI Platform team.

Requirements

  • At least 3 years of experience in applied machine learning, AI engineering, or ML-focused software engineering, including significant production work.
  • Hands-on experience with modern language models, prompt design, fine-tuning, and rigorous evaluation.
  • Working knowledge of dataset construction, feature engineering, training workflows, evaluation metrics, and experiment design.
  • Familiarity with supervised fine-tuning, direct preference optimization, reinforcement learning, and their production data and evaluation implications.
  • Experience shipping and operating ML-powered systems end to end, including data pipelines, production deployment, inference optimization, observability, and lifecycle management.
  • Strong data manipulation and analysis skills, including work with messy, multi-source, and semi-structured data.
  • Familiarity with secure and privacy-aware AI practices and sensitive data.
  • Strong communication, collaboration, and cross-functional technical leadership skills.

Benefits

  • Competitive base salary, meaningful equity, benefits, and a generous equity package.
  • Full-time role based in WHOOP’s Boston, Massachusetts office, with relocation required if necessary.
  • WHOOP is an equal opportunity employer and participates in E-Verify.

Categories

WHOOP

About WHOOP

501-1,000 employees

Solving problems that sit at a unique intersection of hardware, tech, health, fitness and design.

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