Sachin John
Senior Software Engineer at Snowflake
Zurich, Zurich, Switzerland
Summary
👤
Senior🎓
Top SchoolSachin John is a Senior Software Engineer based in Zurich with 11 years of experience specializing in database systems, performance optimization, and system design. He holds a PhD from EPFL where he built novel systems for high-dimensional data cubes, efficient θ-joins, and optimistic concurrency control, and mentored students while teaching advanced courses. After academia he moved into industry roles at Observe and now Snowflake, bringing research-grade solutions to production-scale analytics platforms. Sachin combines deep systems research with hands-on implementation across the stack, from query engines to storage and concurrency algorithms. Known for squeezing performance out of complex workloads, he seeks collaborations that push the boundaries of next-generation database technology. A detail-oriented innovator, he blends academic rigor with practical engineering to ship high-impact, scalable systems.
11 years of coding experience
4 years of employment as a software developer
Bachelor of Technology (B.Tech.) Computer Science, Bachelor of Technology (B.Tech.) Computer Science at Indian Institute of Technology, PatnaVimalagiri Public School, KothamangalamDoctor of Philosophy - PhD Computer Science, Doctor of Philosophy - PhD Computer Science at EPFL
English, Malayalam, Hindi, German, French
Github Skills (15)
backend10
scala8
squid5
continuation5
building-blocks4
transactional4
multicore4
macros4
key-value4
compilation4
parallel3
metaprogramming3
embedded3
dotty3
functional-programming2
Programming languages (2)
Github contributions (5)
philemonf/transactional-key-value-store-project
Mar 2015 - May 2015
Contributions:59 commits, 3 PRs, 45 pushes in 1 month
yarn-applicationkey-valueyarntransactional
dbtoaster/dbtoaster-backend
Mar 2016 - Jan 2019
The current backend of DBToaster, implemented in Scala.
Contributions:244 commits, 12 pushes, 1 branch in 2 years 11 months
scalabackend
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