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AI Time-Series Data Synthesis Engineer

Savannah Watanabe

Full-time · Job · Los_Angeles

About the role

Tabular data synthesis is a solved problem — imperfectly, but the techniques are mature. Time-series synthesis is much harder: temporal structure, autocorrelation, seasonality, trend components, and multivariate co-movement patterns all need to be preserved for the synthetic data to be useful for model training. A synthetic financial time series that gets daily returns right but destroys the volatility clustering that models need to learn is useless for market risk model training. We develop synthetic data capabilities for 35 ML research organizations and enterprise data science teams. Time-series synthesis is a gap in our current portfolio: we support tabular, image, and text synthesis. Our clients need time-series synthesis for financial modeling, sensor data augmentation, and clinical longitudinal data generation where real data is scarce or regulatory-constrained. You'll build the time-series synthesis system: implementing conditional generation models that preserve specified temporal dependencies, developing evaluation metrics that quantify temporal fidelity beyond standard statistical moments, and building domain adaptation that lets clients specify the temporal properties that matter for their particular time-series use case.

Responsibilities

  • Design conditional time-series generation models preserving autocorrelation, seasonality, and multivariate co-movement
  • Implement temporal fidelity evaluation metrics beyond distributional statistics: spectral similarity, autocorrelation distance
  • Build domain adaptation enabling clients to specify target temporal properties for their synthesis use case
  • Develop conditional generation conditioning on user-defined trend and regime change specifications
  • Create multivariate synthesis preserving cross-series correlation structures
  • Benchmark synthesis quality against domain-specific downstream task performance on synthetic versus real data

Requirements

  • 3+ years in ML engineering with time-series modeling, generative models, or synthetic data experience
  • Strong Python and PyTorch skills with sequence generation and temporal model architectures
  • Deep understanding of time-series statistics: autocorrelation, spectral analysis, stationarity, and regime changes
  • Experience evaluating generative model output quality beyond standard statistical distance metrics
  • Ability to work across financial, sensor, and clinical time-series domains with different temporal fidelity requirements

Benefits

  • Fully remote with flexible schedule
  • Health and dental insurance
  • $3,000 annual professional development budget
  • 401(k) with match
  • Equity options

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Job Type

Full-time

Level

Mid-Level

Language

English

Salary Range

$100k – $130k / year

AI Expertise

AI & Machine Learning Engineers MLOps & AI Infrastructure

Skills

python pytorch statistics sql pandas docker

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