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NEXTMOVEFDE careers · United States
Expedia Group

Software Development Engineer III - Backend - Payments

AI summary of the role

Design and deliver real-time, AI-powered fraud and abuse defenses for Expedia Group's global payment platform processing over $100B annually.

What you’ll do

  • Design and implement low-latency risk decisioning (signals + rules + models) and automated remediation, owning quality and reliability.
  • Build, deploy, and operate ML-powered capabilities in production, partnering with Data Science/ML Scientists on features, experimentation, and monitoring.
  • Incorporate and integrate Generative and Agentic AI into fraud detection and remediation workflows.
  • Simplify and modernize the platform (streaming/data pipelines, microservices, CI/CD, configuration-driven controls).

What you’ll bring

  • Bachelor's degree in Computer Science or related field, or equivalent experience.
  • 5+ years of software engineering with significant experience developing, deploying, and operating ML/AI solutions in production.
  • Experience building, monitoring, and debugging LLM and multi-agent applications (LangChain, LangGraph, Langfuse, or equivalent).
  • RAG-based architecture experience (LlamaIndex, Pinecone, or equivalent).

Technologies

LangChain · LangGraph · Langfuse · LlamaIndex · Pinecone · OpenAI · Gemini · Anthropic · Kafka · Flink · Spark · AWS

About Expedia Group

Operates Expedia, Hotels.com, and Vrbo, connecting travelers with hotels, flights, and vacation rentals while monetizing supply partners via advertising and a B2B distribution marketplace.

Public · 5000+ people

Source and classification

Production engineering · Evidence for this classification:

Group to create innovative products, services, and tools to deliver high-quality experiences for travelers, partners, and our employees. A singular technology platform powered by data and machine learning provides secure, differentiated, and personalized experiences that drive loyalty and traveler satisfaction. Expedia Global Payments (EGP) is looking for top engineering talent to help drive the development of our payment platform, seamlessly roll out new payment methods, and continuously improve on our operational excellence and engineering practices. We offer a highly dynamic set of services that enable customers from all over the world to pay for travel in a variety of ways. We build, operate, and improve payment services for Expedia Group's brands, our suppliers (hoteliers, airlines, vacation rental owners/agencies, etc.), and our corporate needs. We do this accurately and at
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