Vaishnavi Batni
Software Engineer at Helsing
London, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolVaishnavi Batni is a software engineer with 7 years of experience building and operating large-scale data and infrastructure systems, currently based in London and working at Helsing. She previously spent five years at Meta as a Production Engineer, where she drove automation, CI/CD optimizations, and realtime logging improvements that cut data lag from minutes to seconds and reduced release times dramatically. Vaishnavi has hands-on backend experience contributing to the Presto distributed SQL engine—adding features like partial results and automatic query retry, fixing projection bugs, and helping with release management. Her background spans systems languages and tools (Python, C++, Rust, MySQL, Presto SQL) and includes both research in NLP and applied engineering in medical imaging test automation. She combines production on-call discipline and incident review experience with a researcher's attention to detail, enabling practical, reliability-focused solutions. Notably, she has led infrastructure decoupling and large hardware migration projects that materially improved test and production efficiency.
7 years of coding experience
8 years of employment as a software developer
Master of Science - MS Computer Science, Master of Science - MS Computer Science at Arizona State UniversityBachelor of Engineering - BE Information Science and Engineering, Bachelor of Engineering - BE Information Science and Engineering at National Institute of Engineering, Mysore
Stackoverflow
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Github Skills (11)
javas10
query-optimization10
presto10
sql10
java10
user-data9
data-model9
data-set9
big-data9
release-management8
build-automation6
Programming languages (2)
Github contributions (5)
prestodb/presto
Nov 2020 - Jun 2022
The official home of the Presto distributed SQL query engine for big data
Role in this project:
Back-end Developer
Back-end DeveloperContributions:16 reviews, 18 commits, 9 PRs in 1 year 7 months
Contributions summary:Vaishnavi primarily contributed to the Presto query engine, focusing on various aspects of its core functionality and release management. Their work included adding release notes, reverting a change related to projection handling, and adding functionality such as returning partial results and automatic query retry. They also addressed specific bug fixes, and integrated session property version checks.
distributed-sqlquerybigdataquery-enginesql
vaishnavibatni/presto
Jan 2020 - Jun 2022
The official home of the Presto distributed SQL query engine for big data
Contributions:41 pushes, 8 branches in 2 years 5 months
jdbchbasebigdatakuduoracle-database
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