AI Researcher – American Express

Company: Gravity Engineering Services Pvt Ltd.
Apply for the AI Researcher – American Express
Location: London
Job Description:

Key Responsibilities

  • Design, prototype, and validate machine learning models for credit and fraud risk assessment.
  • Collaborate with cross‑functional teams to translate business problems into data‑driven solutions.
  • Conduct research on novel algorithms, including deep learning and graph‑based methods, to improve detection accuracy.
  • Deploy models into production environments, ensuring scalability, robustness, and compliance with regulatory standards.
  • Communicate findings and recommendations to stakeholders through clear visualizations and technical reports.

Requirements

  • Ph.D. or Master’s in Computer Science, Statistics, or related field with strong research background.
  • Proven experience in Python, machine learning libraries (scikit‑learn, TensorFlow, PyTorch) and SQL.
  • Deep understanding of fraud detection, credit risk modeling, and feature engineering.
  • Excellent problem‑solving skills and ability to work independently in a fast‑paced environment.
  • Strong written and verbal communication skills for presenting complex ideas to non‑technical audiences.

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Posted: July 6th, 2026