Senior Agentic AI Engineer – Full-Stack & Orchestration

11105 Expedia, Inc.; Seattle (WA); On-site; USD 185,000 - 258,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

Paid time off

Travel discounts

Job summary

Expedia Group's Layla AI is seeking a Senior Full Stack Agentic AI Engineer to shape travel planning experiences at global scale. You will own cross-cutting work across agent orchestration, backend services, data, and user interfaces.

You will design reliable AI agent patterns, build API-driven services, and collaborate with Product, Design, Data and Engineering to ship measurable, safe experiences for travelers.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related technical field, or equivalent professional experience.
• 6+ years of professional software engineering experience, delivering production systems end to end.
• Experience building and operating full-stack applications, with meaningful depth in backend services and modern web or product-facing interfaces.
• Professional experience integrating LLMs or AI/ML capabilities into production products, workflows, or platforms.
• Experience with agentic patterns such as tool-using agents, multi-step workflows, orchestration, RAG, function calling, structured outputs, or human-in-the-loop systems.
• Strong programming ability in at least one backend language such as Python, Java, Kotlin, Go, or TypeScript, plus experience contributing to a modern frontend stack.
• Experience designing APIs, services, data models, integrations, automated tests, and production monitoring.
• Ability to communicate technical tradeoffs clearly and collaborate effectively with product, design, data, and engineering partners.

Responsibilities

• Design, build, and operate agentic AI experiences that support travel discovery, itinerary planning, personalization, and booking-related workflows.
• Develop reliable agent orchestration patterns, including planning, tool use, routing, state management, memory, retries, guardrails, and human confirmation where appropriate.
• Build and evolve backend services, APIs, data models, integrations, and event-driven workflows that connect agent experiences to Expedia Group and Layla capabilities.
• Build user-facing experiences that make AI behavior clear, useful, and actionable across web and other relevant product surfaces.
• Integrate retrieval, knowledge, and recommendation capabilities using appropriate data contracts, embeddings, search, ranking, and grounding strategies.
• Establish evaluation and observability practices for agentic systems, including quality, task completion, latency, cost, safety, failure modes, and user impact.
• Take shared ownership of a meaningful product surface, from framing the problem and exploring solutions through implementation, launch, measurement, and iteration.
• Translate ambiguous product opportunities into thin, testable increments and ship quickly while preserving operational and architectural quality.
• Partner closely with Product, Design, Data, and Engineering to shape product direction, define success metrics, and connect technical decisions to traveler outcomes.
• Apply strong software engineering practices across testing, CI/CD, observability, security, incident response, and production support.
• Use AI-assisted engineering tools thoughtfully to explore designs, accelerate implementation, improve test coverage, and investigate production behavior - while retaining full accountability for the code and systems shipped.
• Mentor teammates and raise the quality bar through design reviews, code reviews, documentation, reusable patterns, and hands-on technical leadership.

Skills

Full-stack development

API design

AI/ML integration

Agentic patterns

Frontend stack

Backend languages

Communication

Education

Bachelor's degree or equivalent

6+ years professional experience

Tools

LangGraph

LangChain

Job description

Expedia Group's Layla AI is seeking a Senior Full Stack Agentic AI Engineer to shape travel planning experiences at global scale. You will own cross-cutting work across agent orchestration, backend services, data, and user interfaces.

You will design reliable AI agent patterns, build API-driven services, and collaborate with Product, Design, Data and Engineering to ship measurable, safe experiences for travelers.