Andy Zhang
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About

I’m a Staff Engineer at Alchemy and a former Tech Lead Manager at Google, with over 10 years of experience building and scaling backend systems, low-latency services, and distributed infrastructure.

At Google, I led a 7-engineer team, optimizing large-scale data pipelines and geo-services, reducing costs by 40% and data staleness from 27 to 7 hours. I also drove Google’s Managed Prometheus integration with GKE, contributing over $14M in ARR.

At Alchemy, I currently lead the development of the 4337 account abstraction infrastructure—powering one of the top bundlers on the market. As Reliability Commander, I revamped our alerting and observability system, cutting 80% noise and ensuring 5-minute preemptive alerting.

I’ve conducted 100+ interviews across system design, algorithms, and behavioral rounds at Google and beyond. I offer mock interviews and mentorship for engineers targeting senior, staff, or EM roles, with actionable feedback tailored to your target company.

Skills

Software Engineering Engineering Leadership Technical Leadership Tech System Design Distributed Systems