✦ Luna Orbit — AI & Machine Learning

Senior Machine Learning Engineer - Fraud (Research Scientist)

at Plaid

📍 United States Hybrid Posted March 08, 2026
Type Not Specified
Experience senior
Exp. Years 3+ years
Education PhD strongly preferred
Category AI & Machine Learning

This role involves leading applied research to develop advanced fraud detection models using cutting-edge machine learning techniques across various data modalities, with a focus on translating research into scalable production systems.

  • Lead research on fraud detection models
  • Prototype state-of-the-art architectures
  • Collaborate with engineering teams
  • Publish research findings
  • Translate research into production

The environment includes large-scale data processing, graph neural networks, transformer models, and multimodal learning, primarily using Python for prototyping and experimentation.

The ideal candidate is a senior research scientist with a PhD and 3+ years of experience in machine learning research, specializing in fraud detection, graph neural networks, and multimodal learning. They have a strong publication record and proficiency in Python.

PhD or equivalent research experienceExperience with machine learning researchProficiency in PythonExperience with large-scale trainingResearch publication record
Fraud domain experienceSecurityAbuse detectionGraph MLSequential modelingMultimodal learning
Python
Machine LearningDeep LearningGraph Neural NetworksTransformerResearch ScientistFraud DetectionML ResearchPythonLarge-scale TrainingMultimodal LearningRelational GraphsSequential EventsImagesVideoResearch PrototypesModel ExperimentationModel Serving
Machine LearningDeep LearningGraph Neural NetworksTransformer ModelsPythonData ProcessingModel ExperimentationModel ServingResearch PrototypingLarge-scale TrainingMultimodal LearningRelational GraphsSequential EventsImagesVideo
ResearchCommunicationCollaborationInnovationScientific Rigor
Industry Fintech
Job Function Research and develop advanced machine learning models for fraud detection
Machine LearningDeep LearningGraph Neural NetworksTransformerResearch ScientistFraud DetectionML ResearchPythonLarge-scale TrainingMultimodal LearningRelational GraphsSequential EventsImagesVideoResearch PrototypesModel ExperimentationModel Serving

Lack of PhD or equivalent research experience, No experience with machine learning research, Insufficient publication record, Limited Python skills

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