Set backend architecture and AI strategy for Airbnb's Messaging, notifications, and partner-connectivity platform

Airbnb is hiring a Senior Staff Engineer as a hands-on individual contributor on the Communication and Connectivity team, which owns Messaging (the 2nd most-used surface in the app), push notifications, and the platform connecting third-party partners to Airbnb. With a 12+ year bar, this role blends backend architecture ownership, applying modern AI to products and dev cycles, and cross-functional technical leadership with design, product, and data science. Expect deep systems-design and technical-leadership questions, since Airbnb explicitly expects even its most senior ICs to stay hands-on and write code.

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What this interview tests

Backend architecture for high-scale, high-usage communication systems (Messaging, notifications)
Applying modern AI technologies to product and engineering workflows
Staying hands-on and code-contributing at Staff/Senior Staff level
Cross-functional technical leadership with design, product, and data science
Setting technical direction/strategy without direct authority
Design and code review that shapes team-wide practice

Common question themes

Design a scalable, reliable system for reaching out to hosts via notifications at Airbnb's scale

How would you decide where applying AI actually improves the partner-connectivity or messaging platform

Walk through an architecture or design review you personally drove, including trade-offs

Tell me about partnering with design/product/prototyping to shape a communication experience

Describe setting technical direction across teams you don't formally manage

Tell me about code or design review feedback that changed a project's outcome

How candidates describe it

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

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