Evan Yin - Software Engineer at Whatnot

Evan Yin

Software Engineer at Whatnot

Seattle, Washington, United States

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Summary

🤩

Rockstar

🎓

Top School

Evan Yin is a software engineer and technical leader based in Seattle with a decade of experience building and scaling distributed systems, observability platforms, and high-performance backends. At Snap he led major infra modernizations and rebuilt observability to >10x scale while cutting on-call load by 90% and driving cost savings measured in the millions. He contributed backend features to the notable open-source M3 time-series repo, extending Graphite query capabilities for richer aggregation and analysis. Earlier work at Amazon helped launch real-time ASR services and mobile streaming libraries used by millions, demonstrating a strong track record from systems design to client libraries. Curious and pragmatic, he blends deep production experience with a passion for continuous learning and practical cost-efficiency.

5 years of coding experience

14 years of employment as a software developer

Master of Science Computer Science, Master of Science Computer Science at Northeastern University

Bachelor Electronic Business, Bachelor Electronic Business at Yunnan University of Finance and Economics

English, Chinese

Github Skills (13)

query-engine10

timeseries-database10

tsd10

aggregate10

aggregates10

aggregations10

go10

aggregate-functions10

metric10

aggregator9

prometheus8

kubernetes-pods7

kubernetes7

Programming languages (1)

Github contributions (4)

m3db/m3

Sep 2020 - Aug 2021

M3 monorepo - Distributed TSDB, Aggregator and Query Engine, Prometheus Sidecar, Graphite Compatible, Metrics Platform

Role in this project:

Back-end Developer

Contributions:32 reviews, 27 commits, 20 PRs in 1 year

Contributions summary:Evan primarily contributed to the implementation of new Graphite functions and the enhancement of existing ones within the M3 time-series database query engine. This involved adding features like `groupByNodes`, `aggregateWithWildcards`, `aggregate`, `movingWindow`, `filterSeries`, `invert`, and `round`, alongside improvements to the `hitcount` and `substr` functions. These changes focused on extending the capabilities of the Graphite query language, enabling more flexible and powerful data aggregation and analysis within the M3 platform.

distributedquerymonorepoquery-enginesidecar

yyinsc/m3

Aug 2020 - Aug 2021

M3 monorepo - Distributed TSDB, Aggregator and Query Engine, Prometheus Sidecar, Graphite Compatible, Metrics Platform

Contributions:32 pushes, 23 branches in 11 months

querysidecarmonorepoquery-enginetsdb

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