Senior GenAI Platform Engineer

Expedia, Inc.; Chicago (IL); Hybrid; USD 172,000 - 240,000; Full time

Benefits offered by this job

Medical/dental/vision

Travel discounts

Wellness programs

Job summary

Expedia Group in Chicago invites a Senior Software Development Engineer to lead design and development of GenAI platform services and multi-agent infrastructure. You will drive end-to-end backend systems, ensuring secure, observable, and scalable AI-enabled experiences for travelers and partners.

You will collaborate with product and engineering teams across regions, delivering reusable platform capabilities, proper guardrails, and robust data modeling for high-traffic workloads.

Qualifications

• Bachelor's degree in Computer Science or related field or equivalent professional experience.
• 8+ years building and operating backend services and APIs with end-to-end ownership.
• Proficiency in Python and production-grade web services using FastAPI or similar frameworks.
• Experience with cloud environments (AWS) and at least one data store (Aurora PostgreSQL or Elasticsearch).
• Familiarity with AI-driven systems, embeddings or RAG patterns and GenAI platform tools.

Responsibilities

• Drive end-to-end system design, including LLD, API contracts, and data modeling.
• Collaborate with geographically distributed teams to clarify decisions and dependencies.
• Own delivery from design through deployment, ensuring reliability, security, and observability.
• Build reusable platform capabilities with sensible defaults and workload-specific flexibility.

Skills

Python

API design

Backend services

Cloud deployments

GenAI concepts

Education

Bachelor's degree or equivalent

Tools

FastAPI

Flask/Django

Aurora PostgreSQL

Elasticsearch

LangChain

LangSmith

LangFuse

Job description

Expedia Group in Chicago invites a Senior Software Development Engineer to lead design and development of GenAI platform services and multi-agent infrastructure. You will drive end-to-end backend systems, ensuring secure, observable, and scalable AI-enabled experiences for travelers and partners.

You will collaborate with product and engineering teams across regions, delivering reusable platform capabilities, proper guardrails, and robust data modeling for high-traffic workloads.