Projjal Chanda
Software Engineer at MongoDB
Dublin, Ireland
Summary
🤩
Rockstar🎓
Top SchoolProjjal Chanda is a software engineer with a decade of experience focused on databases and distributed systems, currently contributing at MongoDB from Dublin. He has a track record at data-centric companies including Dremio and Adobe, and brings practical research experience from internships and an IIT Kharagpur CS degree. Projjal is an active open-source contributor to high-profile projects such as Apache Arrow, where he optimized Gandiva’s string and numeric functions and fixed performance-critical bugs. Comfortable across NLP, computer vision, and recommendation systems, he gravitates toward hard systems problems that require both algorithmic rigor and careful engineering. Known for bridging low-level performance tuning with production-grade reliability, he enjoys learning new techniques and applying them to real-world data processing challenges.
10 years of coding experience
5 years of employment as a software developer
Bachelor of Technology, Computer Science and Engineering, Bachelor of Technology, Computer Science and Engineering at Indian Institute of Technology, Kharagpur
Github Skills (13)
text-manipulation10
aggregation-framework10
code-optimization10
databases10
c-language10
strings10
cprogramming-language10
mongodb10
mongodb-database10
database10
testing9
llvm9
unit-testing8
Programming languages (7)
Github contributions (5)
apache/arrow
Nov 2019 - Apr 2022
Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics
Role in this project:
Back-end Developer
Back-end DeveloperContributions:349 reviews, 49 commits, 88 PRs in 2 years 5 months
Contributions summary:Projjal contributed to the development of the Apache Arrow project, focusing on the Gandiva component, which is a query execution engine. Their work involved implementing and optimizing string-related functions, such as reverse, locate, and replace, and also included adding numeric cast functions. Moreover, the user addressed multiple bugs and improved code efficiency within the Gandiva codebase.
memorymulti-languagetoolboxacceleratedarrow
projjal/arrow-build
Dec 2019 - Sep 2022
Helper repo for doing Arrow Crossbow builds
Contributions:312 releases, 2 PRs, 38 pushes in 2 years 9 months
buildsrepo-helperarrow
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