Marcus Gartner
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolMarcus Gartner is a software engineer with 14 years of experience focused on performance, databases, and distributed systems, currently at Jane Street after senior roles at Cockroach Labs and Lob. He has deep hands-on experience optimizing query planners, execution engines, and the distributed SQL layer—contributions visible in the CockroachDB codebase. At Lob he built scalable services and led efforts around PostgreSQL performance and a USPS CASS-certified address verification API, blending systems work with product-driven engineering. Marcus favors pragmatic, low-complexity solutions and thrives in collaborative teams where reliability and measurable performance matter. He writes about practical database topics like HTTP keep-alive and efficient Postgres data operations, signaling a preference for clear tooling and observable systems. Based in New York and educated at Brown, he pairs operational rigor with a curiosity for internals that surfaces in both production systems and technical writing.
14 years of coding experience
12 years of employment as a software developer
Bachelor of Science (Sc.B) Computer Science, Bachelor of Science (Sc.B) Computer Science at Brown University
Stackoverflow
172reputation
4kreached
5answers
7questions
Github Skills (16)
databases10
query-optimization10
sql-parser10
go10
sql10
database10
access-control6
delayed-job6
associations6
authentication6
nodejs6
cockroachdb6
mongodb6
mongoid6
ruby-on-rails6
Programming languages (20)
Github contributions (5)
cockroachdb/cockroach
Mar 2020 - Jan 2023
CockroachDB — the cloud native, distributed SQL database designed for high availability, effortless scale, and control over data placement.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3129 reviews, 1302 commits, 1822 PRs in 2 years 10 months
Contributions summary:Marcus primarily contributed to the back-end development of CockroachDB, making several code changes that focused on query optimization and internals. Their work included implementing features for user-defined functions and procedures as well as fixing bugs related to the execution of these and other expressions. They also improved the efficiency of the query planner and the execution of the distributed SQL layer.
distributed-sqldistributed-sql-databasemysqlsql-databasesql
lob/hapi-bookshelf-total-count
Apr 2016 - Oct 2016
Hapi plugin used with Bookshelf models to calculate the total number of records that match a query and appends it to the response
Contributions:11 commits, 5 PRs, 13 pushes in 6 months
queryapitotalhapirecords
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