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American Express

Issues credit cards and runs a payment network

Senior Analyst Data Science

Applied Machine LearningPosted on Nov 13
Full-timeNo salary listedIn-person

About the Job

Requirements

  • 2–3 years of relevant work experience in data science, analytics, or a related quantitative field.
  • A bachelor's degree in a quantitative field such as Computer Science, Statistics, Mathematics, Engineering, Economics, or a related discipline.
  • Strong analytical and problem-solving skills, including translating complex, unstructured business problems into quantitative frameworks and models.
  • Ability to communicate analytical findings and recommendations clearly to technical and non-technical stakeholders.
  • Experience applying machine learning techniques using standard libraries such as scikit-learn, TensorFlow, or PyTorch to real-world problems; familiarity with natural language processing tasks such as text classification, summarization, or information extraction.
  • Strong proficiency in Python and SQL; familiarity with distributed data processing tools such as Spark is a plus.
  • Experience working with cloud-based data platforms such as GCP, AWS, or Azure, including data processing and querying tools such as BigQuery.
  • Experience with data visualization tools such as matplotlib, seaborn, or Tableau to communicate insights effectively.
  • Familiarity with data processing workflows (ETL) and version control such as Git.
  • Proficiency in Excel and PowerPoint for analysis and presentation of results.
  • Ability to work independently and collaboratively in a cross-functional environment, with strong attention to detail.

Responsibilities

  • Design, develop, and deploy predictive and explanatory models to address business problems using machine learning, natural language processing, and generative AI; support forecasting, incentive design refinement, and detection of anomalous or gaming behaviors by translating business questions into measurable analytical frameworks.
  • Generate actionable insights on Sales and client behavior to inform strategy; apply hypothesis testing and maintain reproducible, well-documented analytical workflows.
  • Contribute to the design, development, and operationalization of generative-AI-enabled analytics solutions integrating internal performance and external signals; assist in defining success metrics, monitoring frameworks, and LLM-based feature-generation approaches for unstructured data, and support validation approaches such as human-in-the-loop review and hallucination detection.
  • Develop, evaluate, and iterate models using modern machine learning frameworks such as TensorFlow and PyTorch, attending to performance, scalability, and interpretability.
  • Partner with cross-functional stakeholders in Sales, Marketing, Finance, and Technology to understand business needs, refine analytical approaches, and deliver relevant solutions.
  • Contribute to building and optimizing data pipelines and modeling workflows using cloud-based and distributed computing environments; support efficient model training, including GPU and distributed training techniques.
  • Stay current on advancements in machine learning, deep learning, and generative AI; evaluate emerging approaches and translate theoretical advances into practical, scalable solutions for business outcomes.
  • Lead analytics and measurement across key performance indicators, and own stakeholder and executive-level communications on initiative progress, including automated monthly measurement tied to strategic initiatives.
  • Present analytical findings and recommendations to technical and non-technical audiences, including executive leadership, through visualizations, reports, and presentations.
  • Develop and execute data-driven strategies to improve Sales portfolio performance, translating complex data into actionable insights to inform decisions and support growth.
  • Advise leadership on performance trends and enable data-informed decision-making across the organization.
  • Design, develop, and operationalize machine-learning- and AI-powered solutions to enhance client engagement and improve channel efficiency.

Desired Qualifications

  • A master's degree in a quantitative field such as Data Science, Computer Science, Statistics, Mathematics, or Engineering, or a related discipline.
  • Experience with causal inference or experimentation methods.
  • Experience applying machine learning techniques in production environments, including exposure to generative-AI approaches such as LLM prompting, retrieval-augmented generation, and evaluation methods.

About the Company

American Express

Issues credit cards and runs a payment network

American Express issues credit and pay-in-full charge cards to consumers and businesses, and unlike most card issuers it also runs the payment network its cards use. Its Travelers Cheque, launched in 1891, made carrying money abroad safer, and in 1959 it became the first major issuer of plastic cards. Cardholders earn points toward flights and hotels plus perks such as airport lounges, while companies use its corporate cards for employee travel and expenses. American Express earns a fee from merchants on each purchase, plus annual fees and interest on balances cardholders carry. Henry Wells and William Fargo, who later started Wells Fargo, co-founded it in 1850 as a freight delivery business; it is based in New York City.

Company size
10,001+
Company stage
IPO
Headquarters
New York City, New York
Founded
1850

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