Nga Tran
Greater Boston United States
Summary
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RockstarNga Tran is a back-end software engineer specializing in distributed relational databases with five years of experience building and refining query engines and scalable datastores. Based in Greater Boston, she has contributed to high-profile open-source projects like Apache DataFusion and InfluxDB IOx, adding SQL expressions, improving optimizer and execution plan diagnostics, and evolving database catalog schemas. Her work blends careful schema and query-level changes with practical engineering—introducing timestamp literals, fixing aggregation/dictionary-encoding bugs, and streamlining tombstone processing—to make analytics systems more robust and debuggable. Colleagues rely on her knack for turning subtle type and execution issues into maintainable fixes that improve both developer experience and production reliability.
5 years of coding experience
Github Skills (16)
fusion10
data-modeling10
query-engine10
rust10
postgresql10
arrow-keys10
sql10
database-design10
arrows10
arrow-js10
optimizers9
optimizer9
database-administration8
big-data8
testing8
Programming languages (4)
Github contributions (5)
apache/datafusion
Sep 2021 - Dec 2022
Apache DataFusion SQL Query Engine
Role in this project:
Back-end Developer
Back-end DeveloperContributions:133 reviews, 7 commits, 25 PRs in 1 year 2 months
Contributions summary:Nga contributed to the Apache DataFusion SQL query engine by implementing and testing new features, including `is_null` and `is_not_null` expressions. They also worked on enhancing the debugging and explain functionalities of the query engine. Additionally, they added timestamp literal expressions and addressed issues related to data types in aggregation, specifically concerning min/max aggregations and dictionary encoding. Furthermore, the user made code improvements in the optimizer and execution plan, including adding logging and fixing boolean folding.
querypythonquery-enginedataframerust
influxdata/influxdb
Apr 2023 - Apr 2023
Scalable datastore for metrics, events, and real-time analytics
Role in this project:Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:1 review in 1 day
Contributions summary:Nga's commits primarily involve refactoring and modifying the database component of the InfluxDB IOx project, specifically focusing on the catalog. Their contributions include the addition of features such as new columns in the partition table related to retention, updating the process of inserting information, and implementing functionalities for deleting fully processed tombstones. The code changes include significant modifications to the database schema and associated operations, which includes new queries and modifications to data structures.
real-time-analyticsscalablereactanalyticsevents
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