James Lim
Director Of Engineering at Zip
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolJames Lim is a Director of Engineering based in San Francisco with 12 years of experience building platform and infrastructure teams that scale reliable cloud products across search, fintech, and IoT. He has a strong track record creating platform orgs from scratch—driving multi-region failovers, achieving 99.999% availability, and leading PCI DSS v4 and enterprise security efforts that unlocked seven-figure deals. Hands-on in systems and data engineering, he’s driven migrations to cellular architectures, boosted API throughput 50x, and optimized cloud spend to improve gross margins ahead of IPOs. An active open-source contributor and prolific Stack Overflow participant (~13K reputation), he also writes about engineering and leadership and brings an unusual practical perspective from early-career mechanical work—he once drove an amphibious tank, so he’s unusually attuned to low-level system behavior and failure modes.
12 years of coding experience
16 years of employment as a software developer
B.S Double Computer Science Information Systems, B.S Double Computer Science Information Systems at Carnegie Mellon University
English, Chinese
Stackoverflow
12,985reputation
3.2mreached
155answers
22questions
ruby-on-rails
top-5%
multiprocessing
top-5%
ssl
top-5%
switch-statement
top-5%
python
top-5%
numpy
top-5%
Github Skills (171)
jenkins-api-plugin10
openstack-swift10
ruby10
rsync10
backup10
google-cloud10
cloud-platform10
icloud10
jenkins-plugin10
aws-s310
sftp10
encryption10
rubygems10
ftp10
flysystem10
Programming languages (7)
Github contributions (5)
jimjh/event-proxy
Aug 2017 - Feb 2020
Contributions:18 commits, 12 pushes, 1 branch in 2 years 6 months
jimjh/blog
May 2015 - Jan 2020
Contributions:21 pushes in 4 years 9 months
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