James Kasten
Senior Software Engineer II at Snowflake
Danville, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJames Kasten is a Senior Software Engineer II with 14 years of deep expertise in PKI, TLS, and secure systems engineering, currently advising Snowflake's Product Security on Workload Identity Federation and TLS. He led Google's publicly trusted certificate authority, launched a major ACME endpoint that became one of the largest public CAs, and co-authored RFC 8555, the ACME protocol powering a huge fraction of Internet TLS issuance. Comfortable at the intersection of engineering and policy, he coordinated global TLS strategy across multiple regions and served on GTS’ Policy Authority while handling Google's most critical public security responses. A founding contributor to Let's Encrypt and Certbot, he blends rigorous research (PhD-level training) with hands-on production delivery and industry-recognized impact. Based in Danville, CA, he brings a rare combination of protocol authorship, large-scale CA operations, and regulated-environment security leadership.
13 years of coding experience
9 years of employment as a software developer
Doctor of Philosophy (Ph.D.) Computer Science and Engineering, Doctor of Philosophy (Ph.D.) Computer Science and Engineering at University of MichiganBachelor's Degree Economics and Computer Science, Bachelor's Degree Economics and Computer Science at Vanderbilt University
Github Skills (58)
encrypt10
ssl10
acme-protocol10
python10
letsencrypt10
acme10
authority10
certificate10
aes-gcm10
certificate-authority10
specification10
certbot10
x50910
ssl-certificate10
pki10
Programming languages (6)
Github contributions (5)
jdkasten/acme-spec
Apr 2015 - Sep 2015
Contributions:19 pushes, 6 branches in 5 months
specificationletsencryptacme
Keith320/letsencrypt
Jun 2015 - Oct 2015
Contributions:38 commits in 3 months
nginxletsencryptsslcoming-soonansible
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