block

Senior ML/AI Modeler, Risk Automation Machine Learning

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At a Glance

Location
Seattle, Washington, United States
Experience
8+ years
Posted
2026-06-05T09:47:15-04:00

Key Requirements

Required Skills

Data ScienceMachine LearningNLP

Domain Knowledge

  • Engineering
  • Finance
  • Insurance
  • Medical
  • Mining

Benefits & Perks

Health Insurance

want. Remote work, medical insurance, flexible time off, retirement savings

Requirements

8+ years of Machine Learning modeling experience.

Full stack ML experience is strongly preferred.

3+ yrs experience with AI engineering, Large language models, and a background in traditional NLP techniques is a strong plus for this role.

End to end experience of building and deploying ML/AI to production systems (batch and real time) that are performant at scale.

Experience of independently owning, influencing and driving programs with multiple cross functional stakeholders that have significant business impact.

Block takes a market-based approach to pay, and pay may vary depending on your location.

Responsibilities

The Risk Automation ML team automates Risk and Compliance investigations and decision making at Block through the application of agentic and generative AI technology.

We work globally with partners in Product, Engineering and Operations to ensure that we are providing a safe user experience for our customers while minimizing or eliminating bad activity on our platform.

We are leveraging agentic and generative AI as an integral part of our toolkit to fulfill our mission.

Block's machine learning systems monitor billions of payment transactions across traditional payment and blockchain networks and surface suspicious activity (fraudulent, suspicious, illegal activity and brand violations) for trained Operations analyst review and decisioning.

We are leveraging generative AI to accelerate historically manually intensive analyst workflows; by adding features in the investigative UX to accelerate agent productivity and enable them to make faster, more informed and accurate decisions (aka Copilots).

This is an IC role, but the senior level has significant leadership responsibilities that include owning, and driving strategic roadmaps & priorities to completion by collaborating with relevant cross functional stakeholders.