Upstart

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Principal Machine Learning Engineer

Machine Learning EngineerMachine Learning EngineerFull TimeRemoteTeam 1,001-5,000Since 2012H1B SponsorCompany SiteLinkedIn

Location

United States

Posted

115 days ago

Salary

$220.7K - $300K / year

Bachelor Degree8 yrs expEnglishPythonPy TorchScikit LearnTensorflow

Job Description

• Serve as the technical lead for applied ML initiatives that improve the accuracy, precision, and recall of underwriting models. • Design and implement advanced ML training strategies, including AutoML, ensemble learning, and temporal modeling techniques. • Drive GPU-accelerated experimentation, including CUDA-based training optimization and embedding fine-tuning. • Build robust data preprocessing and feature engineering pipelines that can be used in both experimentation and production. • Influence modeling strategy through close collaboration with Pricing Engineering and the ML Science organization. • Deliver measurable improvements to model-driven business outcomes such as conversion rate, rate accuracy, and loan performance. • Mentor future applied ML engineers and help define the long-term roadmap for ML excellence within Pricing.

Job Requirements

  • 8+ years of hands-on experience in applied machine learning, with strong exposure to production-scale modeling efforts.
  • Proficiency in Python and core ML frameworks (e.g., PyTorch, TensorFlow, Scikit-learn, XGBoost).
  • Demonstrated expertise in end-to-end model development: data prep, feature engineering, training, evaluation, and deployment.
  • Practical experience optimizing ML workflows using CUDA/GPU acceleration.
  • Strong grasp of regression and classification metrics (e.g., precision, recall, R², MPVRMSE) and how to apply them to production models.
  • Ability to work autonomously and lead technical direction in ambiguous, high-impact domains.

Benefits

  • Competitive Compensation (base + bonus & equity)
  • Comprehensive medical, dental, and vision coverage with Health Savings Account contributions from Upstart
  • 401(k) with 100% company match up to $4,500 and immediate vesting and after-tax savings
  • Employee Stock Purchase Plan (ESPP)
  • Life and disability insurance
  • Generous holiday, vacation, sick and safety leave
  • Supportive parental, family care, and military leave programs
  • Annual wellness, technology & ergonomic reimbursement programs
  • Social activities including team events and onsites, all-company updates, employee resource groups (ERGs), and other interest groups such as book clubs, fitness, investing, and volunteering
  • Catered lunches + snacks & drinks when working in offices

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