Kengo Seki
Apache Bigtop Committer at The Apache Software Foundation
Chiyoda, Japan
Summary
🤩
Rockstar🎓
Top SchoolKengo Seki is an experienced backend and DevOps engineer with 11 years contributing to large-scale open source data and infrastructure projects, currently serving as an Apache Bigtop committer and Yetus PMC member. Based in Chiyoda, Japan, he blends system automation, packaging and deployment expertise with deep hands-on work across Hadoop ecosystem projects like Camel, Kafka, Avro, Parquet, Spark and Airflow. His contributions often focus on practical reliability: adding compression codec support, hardening connectors, fixing CI failures, and improving deployment tooling such as Docker and AWS scripts. At NTT DATA he has progressed into engineering leadership while continuing significant cross-language fixes and interoperability work in projects like Thrift and Avro. Notably, he pairs low-level bug fixes (temp file handling, ShortWritable support) with higher-level infra changes (toolchain manifests, cluster creation scripts), making him effective at bridging developer ergonomics and production operations.
11 years of coding experience
修士, Information Science/Studies, 修士, Information Science/Studies at 京都大学
Github Skills (92)
hbase10
bzip10
python10
testing10
hadoop10
perl10
apache-camel10
ruby10
javas10
dt10
jtest10
parquet10
beamng10
apache-airflow10
avro10
Programming languages (13)
Github contributions (5)
apache/bigtop
Sep 2015 - Dec 2022
Bigtop is an Apache Foundation project for Infrastructure Engineers and Data Scientists looking for comprehensive packaging, testing, and configuration of the leading open source big data components.
Role in this project:
Backend & DevOps Engineer
Backend & DevOps EngineerContributions:27 reviews, 245 commits, 349 PRs in 7 years 3 months
Contributions summary:Kengo primarily contributed to the Bigtop project by addressing issues related to toolchain and deployment scripts, along with some bug fixes. Their work included modifying and improving the toolchain manifests for tool installations like Puppet and Gradle, and for package installations on different operating systems, indicating a focus on system configuration and automation. They also made changes to deployment scripts, such as the Docker-based Hadoop cluster creation script, and various test files. These modifications suggest a role focused on infrastructure management and ensuring the smooth operation of the Bigtop platform.
javaapachebig-databigtop
apache/avro
Aug 2017 - Jan 2022
Apache Avro is a data serialization system.
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 review, 85 commits, 73 PRs in 4 years 6 months
Contributions summary:Kengo contributed to the Apache Avro project by implementing features and fixing bugs across multiple language bindings. They added zstd and bzip2 codec support to Python and Ruby bindings, enhancing data compression options. In addition, the user added deflate codec support to the PHP bindings and performed modifications related to interop testing. The user also added interop tests for Java, C#, and Python3 bindings, as well as general improvements and fixes related to Perl and Ruby bindings.
avrobigdatadotnetpythonrust
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