✦ Luna Orbit — AI & Machine Learning

Senior Machine Learning Engineer

at Headway

📍 New York, New York, United States; San Francisco, California, United States; Seattle, Washington, United States Unknown Posted March 20, 2026
Type Not Specified
Experience senior
Exp. Years Not specified
Education Not specified
Category AI & Machine Learning

Headway is seeking a Senior Machine Learning Engineer to develop ranking and relevance models that enhance how patients discover mental health providers, leveraging search, recommendation, and personalization techniques.

  • Design and iterate ML models for matching and ranking
  • Leverage patient signals and provider attributes
  • Own model lifecycle from offline evaluation to deployment
  • Design A/B tests and analyze results
  • Collaborate with cross-functional teams

The role involves building and deploying ML models for search and ranking systems, using Python and frameworks like TensorFlow or PyTorch, with a focus on personalization and offline evaluation.

The ideal candidate is a senior AI/ML engineer with experience in building ranking and personalization systems, proficient in Python and deep learning frameworks like TensorFlow or PyTorch, capable of working autonomously on complex models to improve patient-provider matching.

Machine LearningML modelssearchrankingpersonalizationPythonA/B testing
TensorFlowPyTorchscikit-learnrecommendation systemsoffline evaluation
TensorFlowPyTorchscikit-learn
Machine LearningMLsearchrecommendationpersonalizationoffline evaluationA/B testingPythonTensorFlowPyTorchscikit-learnranking systemsAIrelevance systemsscoring models
Machine LearningMLsearchrecommendationpersonalizationoffline evaluationA/B testingmodel deploymentPythonscikit-learnTensorFlowPyTorchML modelsranking systemspersonalization algorithms
autonomycollaborationtechnical directionproblem-solvingoutcomes-driven
Industry SaaS
Job Function Developing machine learning models for search and personalization in healthcare discovery
Role Subtype AI & Machine Learning
Tech Domains Python, TensorFlow, PyTorch, scikit-learn
machine learningMLsearchrecommendationpersonalizationmodel deploymentA/B testingPythonTensorFlowPyTorchscikit-learnranking systemsAIrelevance systemsscoring modelsoffline evaluationML modelssearch rankingpersonalization algorithms

Lack of experience with ML models or ranking systems, No proficiency in Python or deep learning frameworks, No experience in search or recommendation algorithms

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