Quick Responder

Andy Zhang

Staff Engineer
10+ experience eng, TLM at FAANG
United States of America
Speaks English and Chinese
Active this week Usually responds in a few hours

Services

$240 / month

The most popular way to get mentored, let's work towards your goals!

4 calls per month (30min/call)

Unlimited Q&A via chat

Expect responses in 2 days

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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.

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