Yuelin Ou

Data and AI engineer. I build systems where correctness is the feature — production data pipelines, applied AI tools, and the seams between them.

About me
Portrait of Yuelin Ou
Now Los Angeles
Spring 2026

By day, I build and maintain production data integration pipelines at INTO University Partnerships — Salesforce and SQL Server flows, reconciliation, exception handling, audit trails — on the integration team supporting 19 U.S. university partners.

Outside of that, I’m building Beacon for the Kaggle Gemma 4 hackathon, iterating on LandClear with development partners, and maintaining the open-source Integration Pipeline Console alongside a three-part series in preparation on enterprise integration reliability.

Writing All writing →
In preparation

Idempotent Write Paths in Distributed Enterprise Integration

An idempotent write path for multi-system integration: business-level keys, a lightweight dedup store, and a three-layer pipeline that makes side-effect correctness queryable and auditable.

In preparation

Resilience Patterns for Enterprise Integration Pipelines

How pipelines survive partial failure and uncertain delivery state without amplifying errors — retry classification, circuit breaking, dead-letter routing, and the design of ambiguous-outcome queues.

In preparation

Scaling Integration Pipelines Without Breaking Correctness

Raising throughput from roughly 500 to roughly 8,000 events per second without violating ordering, atomicity, or replay safety — and a diagnostic framework for evaluating future scaling changes against the same correctness criteria.