Wycliff Lumumba

Software Engineer @ American Express | Conversational AI

Role
Software Engineer Ii at American Express
Location
Houston, TX, US
LinkedIn followers
500 followers
Information TechnologyView LinkedIn profile

About Wycliff Lumumba

AI/ML Software EngineeringPassionate about leveraging learnings in AI and machine learning to drive innovation and solve complex problemsStrong background in building scalable infrastructure and distributed systems to drive best-in-class user experience

Experience

  1. Software Engineer Ii

    American Express

    Sep 2025 — Present · Phoenix, AZ, US

    Delivered an agentic framework for AI chat agents serving card members, enabling contextual management and orchestration of 3.5M chats monthly. Deployed a RAG agent combining vector databases, semantic search, and LLM generation to answer customer FAQs, reducing chat handling time. Enabled expansion of AI chat agents into 13 international markets, driving multi language support and localization for global adoption.Managed multi-stage CI/CD deployments; including creating Helm charts; configuring YAMLs; and leveraging Kubernetes, Vault, and Artifactory for automated releases.

Education

  • Churchill High School

    High School Diploma

    2015 — 2019

  • The University of Texas at San Antonio

    Computer Science, Software Engineering

    2019 — 2022

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Wycliff Lumumba — Software Engineer Ii at American Express in Houston, TX, US | Unifers