Senior Data Scientist - Graphs & Entity Resolution

TWG Global AI

$190K — $290K *
Finance & Insurance
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Strong experience with graph machine learning techniques, including representation learning and graph neural networks on large-scale datasets.
  • Expertise in entity resolution and record linkage, focusing on maintaining cluster stability over time.
  • Familiarity with community and cluster detection using both classical and embedding-based methodologies.
  • Proven success in identifying and analyzing coordinated or collusive behavior, particularly in fraud or AML contexts.
  • Practical experience in building scalable production machine learning pipelines, especially for graph data.
  • Exposure to financial crime, market surveillance, or trading environments, enhancing relevance to the role.
  • Knowledge of FIX protocol and market microstructure is advantageous; experience with on-chain and EVM primitives is highly preferred.

Responsibilities

  • Build and maintain the entity graph that associates accounts, wallets, and behaviors to identify actual actors.
  • Develop enduring entity-resolution and clustering methods to reliably recognize returning actors.
  • Detect and analyze coordinated behaviors and collusion rings, including situations without explicit identity sharing.
  • Collaborate on the Attribution Substrate by integrating vendor attribution with on-chain behavioral clusters for a robust entity-resolution layer.
  • Construct graph-based features and representations that support the broader detection system.
  • Partner with engineering teams to expand the graph with new data sources and market types.

Benefits

  • Onsite position based in Santa Monica, CA or New York, NY offices.
  • Full range of medical, financial, and other benefits offered.
Full Job Description
The Role

Manipulation and fraud rarely happen through a single account. The hard problem in surveillance is connecting activity that's deliberately spread across many accounts, wallets, or identities that share no obvious link. You'll own the graph and entity-resolution side of the system: turning trading, account, and on-chain data into networks, resolving many identities to a single actor, and detecting the coordinated rings and collusive clusters that individual-account models miss. The second seat carries this to the DeFi venue, where entity resolution is not one capability among many but the identity substrate itself: the fusion of commercial blockchain attribution with on-chain behavioral clustering that replaces KYC on a pseudonymous exchange.

Key Responsibilities:
  • Build and maintain the entity graph that links accounts, counterparties, wallets, and behavior into a single picture of who is really acting
  • Develop entity-resolution and clustering methods that stay stable over time, so the same actor is recognized as they resurface
  • Detect coordinated behavior and collusion rings - including cases with no explicit shared identity; on the DeFi side, wallet-farming and sybil detection as direct outputs of entity resolution
  • (DeFi seat) Co-own the Attribution Substrate: fusing vendor attribution clusters (e.g., Chainalysis) with on-chain behavioral clustering into a confidence-scored entity-resolution layer
  • Build graph-based features and representations (embeddings, network features) that feed the wider detection system
  • Partner with engineering as the graph extends to new data sources and market types

Requirements

Qualifications:
  • Strong applied graph ML experience: graph representation learning, embeddings, and/or GNNs on large-scale graphs
  • Entity resolution / record linkage at scale, ideally with an eye to cluster stability over time
  • Community and cluster detection, both embedding-based and classical approaches
  • A track record detecting coordinated or collusive behavior - fraud, integrity, AML, or coordinated-campaign work all translate well
  • Production ML experience: you've built graph pipelines that run, not just research notebooks
  • Financial-crime, market-surveillance, or trading-domain exposure a plus
  • FIX / market-microstructure fluency a plus; for the second seat, on-chain / EVM primitives and wallet-clustering experience strongly preferred

Benefits

Position Location:

This is an onsite position based out of our Santa Monica, CA or New York, NY offices.

Compensation:

The base pay for this position is $190,000-290,000. A bonus will be provided as part of the compensation package, in addition to a full range of medical, financial, and/or other benefits.

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