✦ Luna Orbit — AI & Machine Learning

Principal Data Scientist

at Discover Financial Services

📍 3 Locations Unknown 💰 $161K – $184K USD / year Posted April 01, 2026
Salary $161K – $184K USD / year
Type Full-Time
Experience senior
Exp. Years 3-5 years
Education Bachelor's Degree in a quantitative field (or higher)
Category AI & Machine Learning

Principal Data Scientist at Discover Financial Services leads ML model development for Mainstreet Customer Management, partnering with cross-functional teams to deliver data-driven customer solutions.

  • Partner with cross-functional teams to deliver ML products
  • Build ML models from design to deployment
  • Leverage Python/Conda/AWS/H2O/Spark to analyze large data
  • Translate complex work into tangible business goals
  • Ensure model governance and monitoring

Stack includes Python, Conda, AWS/Amazon Web Services, H2O, Spark to process large numeric and textual data; full lifecycle model development from design to deployment and governance.

The ideal candidate is a senior data scientist with 3+ years of data analytics experience, strong Python/ML capabilities, and hands-on experience with AWS and Spark to build models at scale for large customer datasets. They should be able to translate business problems into data-driven solutions and collaborate across cross-functional teams.

Bachelor's Degree in a quantitative field OR Master's Degree in a quantitative field or MBA with quantitative concentration OR PhD in a quantitative field3+ years of data analytics experience3+ years' experience with PythonScalaor R3+ years' experience with SQL3+ years' experience with machine learning
Master's Degree in STEM field or PhD in STEMAWS experiencePython/Scala/R experience (3+ years)PhD in STEM fieldSTEM field background
PythonCondaAmazon Web ServicesAWSH2OSparkSQL
Bachelor's degree in quantitative field3+ years data analytics3+ years Python/Scala/R3+ years SQL3+ years ML
PythonCondaAmazon Web ServicesAWSH2OSparkSQLMachine LearningTime SeriesDeep LearningClusteringClassificationSentiment Analysis
Customer focusCreative thinkingInterpersonal skillsStrong communicationCollaborationProblem solvingBusiness acumenDetail oriented
Industry Fintech
Job Function Deliver data science products to empower customer management decisions through ML/AI
Role Subtype ML Engineer
Tech Domains Python, Amazon Web Services, SQL / PostgreSQL
Visa Sponsorship Yes
principal data scientistdata scientistpythonawsamazon web servicessparksqlmachine learningtime seriesdeep learningconba? notcondah2oml modelsllm? notSTEMconcluding keywords

Lack of required degree in quantitative field, Less than 3 years of data analytics or ML experience, No experience with Python/SQL/ML

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