Build AI-assisted Finance integrations and MCP tooling on Airbnb's in-house automation platform

Airbnb is hiring a senior software engineer for its Integrations & Application Engineering team to own Finance integrations, migrate systems off Oracle Cloud onto Airbnb's in-house platform, and build AI-assisted automations and MCP integrations (including with Claude Code). The role requires 8+ years of production software engineering plus 2+ years hands-on with LLM integration architecture (fine-tuning, prompt engineering, RAG) and strong backend skills in Java/Python/TypeScript.

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What this interview tests

Production LLM integration: RAG, fine-tuning, prompt engineering
Building AI agents and MCP integrations
Backend microservices and integrations in Java/Python/TypeScript
Migrating Finance integrations off Oracle Cloud to an in-house platform
Distributed systems, messaging, and API design at scale
Mentoring junior engineers through design and architecture reviews

Common question themes

Describe an LLM-powered automation you took from prototype to production

Have you built agent tools or integrations using MCP — walk me through one

Tell me about a system migration you led, e.g., off a legacy ERP or platform

Describe a production microservice or integration you owned end-to-end

How have you mentored a junior engineer through a design review

How do you evaluate new GenAI models or techniques for potential adoption

How candidates describe it

Real Senior Software Engineer interview stories — retold from candidates' public write-ups, with sources.

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