Data Scientist

2 weeks ago

Toronto, Ontario, Canada Yochana Full time

Position Name – Data Scientist

Type of hiring – Subcon

Duration – 3 months contract

Location – Toronto, ON M5J 2H7 (Onsite Hybrid)

Job Description:

We are accelerating two high-priority fraud detection and prevention initiatives. We need a hands-on Data Scientist to support data preparation, unsupervised ML and analysis.

What You'll Do

  • Prepare and clean datasets from internal and partner sources for Machine Learning models
  • Run and support unsupervised models (e.g., Isolation Forest, K-Means, DBSCAN) on baseline and partner data for anomaly detection and behavioural clustering
  • Compare results to current integrity scoring approaches
  • Build clear visualizations and concise summaries of baseline behaviours, clusters, and fraud patterns for executive and partner consumption
  • Consolidate findings across univariate/bivariate/multivariate and ML analyses into structured outputs (slides, notes, notebooks)
  • Document assumptions, transformations, and model configurations to ensure reproducibility

Must-Have Skills & Experience

  • Strong Python (Pyspark, pandas, scikit-learn) and SQL skills
  • Hands-on experience with Data Engineering on AWS
  • Hands-on experience with clustering and anomaly detection on real-world data
  • Comfortable working in a fast-paced, time-boxed project environment

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