NandakumarĀ Vadivelu
Staff Software Engineer at The Apache Software Foundation
Chennai, Tamil Nadu, India
Summary
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Top SchoolNandakumar Vadivelu is a Staff Software Engineer based in Chennai with nine years of experience building and operating large-scale distributed systems. He has held senior engineering roles at Hortonworks, Cloudera, and now Uber, and is an active committer and PMC member on Apache Hadoop and Apache Ozoneācontributing to HDFS, Ozone container management, Ratis registration, and critical test and documentation fixes. His work blends backend systems design, reliability engineering, and pragmatic debugging, with a particular track record improving object storage integration in the Hadoop ecosystem. Colleagues rely on him for tackling consistency issues and hard-to-reproduce failures, and he brings a practical, test-first mindset to open-source and production infrastructure.
9 years of coding experience
14 years of employment as a software developer
B.Tech. Information Technology, B.Tech. Information Technology at Meenakshi Sundararajan Engineering College
English, Tamil, Hindi
Stackoverflow
981reputation
106kreached
13answers
0questions
Github Skills (19)
ozone10
container-management10
back-end-development10
oz10
hdfs10
hadoop10
java10
javas10
backend10
testing9
error-handling9
logging8
documentation8
local-files6
java-streams6
Programming languages (3)
Github contributions (5)
apache/ozone
Mar 2018 - Dec 2022
Scalable, reliable, distributed storage system optimized for data analytics and object store workloads.
Role in this project:
Backend Developer
Backend DeveloperContributions:282 reviews, 163 commits, 249 PRs in 4 years 9 months
Contributions summary:The user, Shashikant Banerjee, contributed to the Apache Ozone project by modifying existing code related to container management and data node operations. Their work involved improvements to error handling and addressing consistency issues. In particular, they focused on implementing changes to the registration process with Ratis and improving logging for more informative debugging. They also refactored code by removing deprecated code and including missing information in container response.
scalableredundantapachebig-dataspark
apache/hadoop
Sep 2017 - Oct 2019
Apache Hadoop
Role in this project:Back-end Developer
Back-end DeveloperContributions:247 commits, 88 PRs, 35 pushes in 2 years
Contributions summary:Nandakumar contributed to the Apache Hadoop project by addressing javadoc errors and enhancing the documentation of retry policies. They also fixed OzoneFileSystem contract test failures, indicating involvement with the Hadoop Distributed File System (HDFS) project and specifically the Apache Ozone project. Additionally, the user contributed to various tests and fixes in the code base by adding code related to object storage capabilities and its integration with Hadoop ecosystem.
apachebig-datasparkhadoopjava
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