Justin Seyster
Software Engineer at MongoDB
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolJustin Seyster is a software engineer with 13 years of experience building high-performance backend systems, currently contributing to core database infrastructure at MongoDB. His work on the famous mongodb/mongo project includes improvements to sort key generation, column store index features, and change stream aggregation—demonstrating deep expertise in database internals and query performance. Before MongoDB he spent several years at Apple and has a long research and academic background from Stony Brook, including a Ph.D.-level engagement in computer science. He combines rigorous research instincts with production-grade engineering, often validating features through tests and careful correctness work. Based in New York City, he has a track record of advancing complex storage and real-time data features that power large-scale applications. An understated strength is his ability to translate academic-level systems knowledge into maintainable, high-performance production code.
13 years of coding experience
12 years of employment as a software developer
Ph.D., Computer Science, Ph.D., Computer Science at State University of New York at Stony BrookB.S., Computer Science, B.S., Computer Science at Stony Brook University
Github Skills (17)
algorithm10
algorithms10
c-language10
admin10
databases10
query-optimization10
database-administration10
data-structure10
mongodb-database10
data-structures10
cprogramming-language10
mongodb10
relational-databases10
sql-database10
database10
Programming languages (3)
Github contributions (5)
mongodb/mongo
Apr 2017 - Jan 2023
The MongoDB Database
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:230 commits, 1 PR, 105 pushes in 5 years 9 months
Contributions summary:Justin primarily contributed to the back-end database infrastructure of the MongoDB project. Their work focused on the core of the database including improving sort key generation, and implementing features related to column store index for optimizing query performance. The contributions demonstrate a strong understanding of the underlying database architecture and performance characteristics. Additionally, the user worked on enhancements for the change stream features for aggregation, validating code and contributing to tests and code to verify the correct behavior of such features.
nosqlc-plus-plusmongodb-databasedatabasemongodb
jseyster/plasmafractal
Nov 2012 - Aug 2022
Contributions:17 commits, 3 pushes in 9 years 10 months
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