W

Wise

Low-cost international money transfers with API

Lead Data Scientist - Receive Risk

Applied Machine LearningConfirmed live in the last 24 hours
Full-timeLondon, UKHybrid

About the Job

Requirements

  • Proven track record of deploying models from scratch, including data preprocessing, feature engineering, model selection, evaluation, and monitoring.
  • Solid knowledge of Python and ability to make and justify design decisions in code.
  • Ability to use Git to collaborate, including opening pull requests on GitHub, and review code.
  • Ability to read code, especially Java.
  • Demonstrable experience collaborating with engineering on services.
  • Experience working with large datasets and data processing technologies such as Hadoop, Spark, and SQL.
  • Familiarity with anomaly detection, supervised and unsupervised learning methods, and real-time data analysis.
  • Experience with statistical analysis.
  • Ability to work independently in a cross-functional and cross-team environment.
  • Ability to refine problem statements and determine how to solve them.

Responsibilities

  • Lead the development and deployment of machine learning models and data science solutions to improve Receive product performance across different Wise markets.
  • Analyse large volumes of customer, transaction, and product data to identify trends, patterns, risks, and opportunities.
  • Design and implement experiments to evaluate product changes, decisioning systems, and customer experience improvements.
  • Build scalable modelling approaches to support prioritisation, personalisation, risk management, and operational decision-making.
  • Collaborate with analysts, product managers, engineers, operations, and risk teams to translate business requirements into actionable data science solutions.
  • Develop robust data pipelines, algorithms, and tools to support production-grade modelling and decision-making.
  • Stay informed about advancements in data science, machine learning, and payment fraud prevention techniques to ensure state-of-the-art capabilities in the Spend domain.

Desired Qualifications

  • Experience with MLOps tools such as Airflow, MLflow, AWS SageMaker, AWS S3, AWS EMR, and CI/CD.
  • Prior experience in the fraud domain and a strong understanding of fraud detection techniques.
  • Experience designing and deploying LLM-based solutions in production.

About the Company

Wise

Low-cost international money transfers with API

Wise enables international money transfers with lower fees by using a peer-to-peer model to match transfers across borders. It offers a multi-currency account for holding and managing money in different currencies and provides an API for businesses to integrate Wise transfers into their platforms. Unlike traditional banks that charge higher fees and poor exchange rates, Wise uses transparent, small-per-transaction fees and real-time exchange rates to reduce costs. Its approach differentiates it from competitors by emphasizing simplicity, cost transparency, and a broad API for business integration. The goal is to make cross-border payments cheaper, faster, and more transparent for individuals and businesses around the world.

Company size
10,001+
Company stage
IPO
Headquarters
London, United Kingdom
Founded
2011

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