;
;

The Airbnb Tech Blog - Medium

Creative engineers and data scientists building a world where you can belong anywhere. http://airbnb.io - Medium

Website

Project Lighthouse — Part 3: Introducing project-lighthouse-anonymize

Project Lighthouse — Part 3: Introducing project-lighthouse-anonymizeThe data in Project Lighthouse is powered by privacy-preserving anonymization ...
Posted on 25 August 2026 | 5:01 pm

How we knew COVID was over (and what our models had to unlearn)

When we retrain, when we rebuild, and when we leave a model alone.By: Harrison KatzA forecast that carries weightThe Forecasting Data Science team ...
Posted on 19 August 2026 | 5:01 pm

Flexible Authentication: Reimagining authentication for millions of users at Airbnb

Rebuilding login and signup surfaced product insights, not just technical challenges. Here’s how we designed Flexible Authentication at the interse...
Posted on 12 August 2026 | 5:01 pm

Eval-driven development: Lessons from evaluating GenAI at scale

How Airbnb teams build trustworthy Generative AI products by treating evaluation as a first-class engineering discipline; not an afterthought.Nestl...
Posted on 28 July 2026 | 5:01 pm

Personalizing Airbnb search by learning from the guest journey

How we built a Transformer-based sequence model that encodes years of guest behavior to surface the right listings at the right time.By: Daochen Zh...
Posted on 21 July 2026 | 5:01 pm

From weeks to a day: how we made LLM evaluation fast enough to iterate on

Training an LLM is the easy part. The hard part is designing experiments and evaluations that you can trust enough to know whether the new model is...
Posted on 14 July 2026 | 5:01 pm

Scaling beyond one: How Airbnb evolved its data architecture for a multi-product world

How Airbnb’s data engineers and analytics engineers built a consistent and flexible data modeling framework to support the expansion into Homes, Ex...
Posted on 9 June 2026 | 5:01 pm

Sitar-agent: Building a reliable dynamic configuration sidecar at scale

How Airbnb built a Kubernetes sidecar to deliver dynamic configuration reliably at scale.By: Bo Teng, Cosmo Qiu, Siyuan Zhou, Ankur Soni, Xin Huang...
Posted on 4 June 2026 | 5:01 pm

When history fails you, borrow from geography

How Airbnb used sequential geographic recovery signals and prior propagation to generate reliable corridor-level forecasts when local data was scar...
Posted on 2 June 2026 | 5:01 pm

Scaling Airbnb’s identity graph with a unified knowledge graph infrastructure

How Airbnb shifts from PaaS to an internal knowledge graph infrastructure at scale.By: Lucen Zhao, Shukun Yang, Ashish JainKnowledge graphs offer a...
Posted on 19 May 2026 | 5:01 pm