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About the Role

As a Senior Data Scientist for Detection & Modeling, you will own the features and models at the core of surveillance systems, evolving them as systems mature and labeled datasets grow. This hands-on modeling role offers significant opportunity to shape detection architecture.

Responsibilities

• Design and refine features on large-scale financial time-series and on-chain data, emphasizing signals robust to noisy, heavy-tailed conditions.
• Develop and improve anomaly-detection models using both supervised and unsupervised approaches.
• Evolve model architectures as labels accumulate, moving from simpler classifiers to multi-class, per-scenario, and ensemble designs.
• Activate the supervised layer for the DeFi side as the first disposition labels arrive.
• Improve detector calibration to ensure trustworthy and comparable scores across market types and venues.
• Partner with validation and analyst teams on labeling pipelines that supply model training signals.

Requirements

• Strong feature engineering and applied ML on transactional or time-series data.
• Hands-on experience with anomaly detection and unsupervised methods (e.g., isolation forests, density-based methods, autoencoders).
• Solid statistical foundations, including model calibration and working with imperfect labels.
• Production ML experience, including shipping, monitoring, and maintaining models over time.
• Comfort scaling a modeling approach across many detectors, market types, and venues.
• Fraud, risk, integrity, or market-surveillance domain experience is a plus.
• FIX / market-microstructure fluency is a plus.
• On-chain data familiarity is a plus.

Skills

• Feature engineering
• Applied ML
• Anomaly detection
• Unsupervised methods
• Model calibration
• Production ML
• FIX
• Market microstructure
• On-chain data

Location

• Santa Monica, CA
• New York, NY

Work Type

• Onsite
• Full-time

Experience Level

• Senior

Salary/Compensations

• $190,000-290,000

Benefits

• Bonus
• Full range of medical, financial, and/or other benefits

About the Company

• TWG AI drives innovation and business transformation across financial services, insurance, technology, media, and sports by leveraging data and AI.
• Their AI-first, cloud-native approach delivers real-time intelligence and interactive business applications.
• They prioritize responsible data and AI practices, ensuring ethical standards and regulatory compliance.
• A decentralized structure allows autonomous business unit operation, supported by a central AI Solutions Group.
• Strategic partnerships with leading data and AI vendors fuel game-changing efforts.
• Contributions support sustained growth, superior returns, rare value, and impact.