Monica Ng
Software Engineer at MongoDB
Sydney, New South Wales, Australia
Summary
🤩
Rockstar🎓
Top SchoolMonica Ng is a software engineer based in Sydney with eight years of experience focused on storage engines and database internals. She has a strong track record at MongoDB, contributing to core storage work and later moving into Rust-based storage development. Her open-source contributions to WiredTiger and MongoDB include performance fixes, data-consistency improvements, and Zstandard compression tuning—work that impacts one of the most widely used NoSQL databases. Monica combines a dual background in computer science and finance from UNSW with hands-on experience across internships in data science and AI consulting. Colleagues know her for methodical, correctness-first engineering and an eye for subtle performance regressions that often hide in reconciliation and truncation logic. She enjoys tackling low-level problems where careful changes yield outsized improvements in stability and throughput.
8 years of coding experience
5 years of employment as a software developer
Higher School Certificate, Higher School Certificate at Hornsby Girls High SchoolUNSW Sydney
English
Github Skills (25)
transaction10
debug10
c-language10
admin10
nosql10
wiredtiger10
databases10
database-administration10
c1110
data-structure10
mongodb-database10
c1710
transactionscope10
data-structures10
transaction-manager10
Programming languages (3)
Github contributions (5)
wiredtiger/wiredtiger
Dec 2020 - Jan 2023
WiredTiger's source tree
Role in this project:
Back-end Developer / Database Engineer
Back-end Developer / Database EngineerContributions:536 reviews, 97 commits, 322 PRs in 2 years 1 month
Contributions summary:Monica contributed to the WiredTiger database project by addressing code quality issues, fixing performance reporting bugs, and improving data consistency. They made changes to the history store implementation, including fixes to the reconcile and truncate operations. The user's work involved modifications to the database's internal structures and mechanisms, with a focus on stability and correctness.
rustwiredtiger
mongodb/mongo
May 2021 - Jun 2021
The MongoDB Database
Role in this project:Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:9 commits in 1 month
Contributions summary:Monica primarily contributed to the database engine, focusing on enhancing WiredTiger's core features and configuration. They implemented and refined Zstandard compression, including customization options. Their work involved modifying internal database configurations, updating parameter defaults, and removing outdated comments. The contributions demonstrate a strong understanding of database internals and storage engine optimization.
nosqlc-plus-plusmongodb-databasedatabasemongodb
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