Satoshi Akama
Software Engineer at Treasure Data
Chiyoda, Japan
Summary
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RockstarSatoshi Akama is a seasoned software engineer with 13 years of experience, currently building backend systems at Treasure Data in Chiyoda, Japan. He specializes in data loading and processing, contributing notably to the popular open-source Embulk project by improving CSV formatting, robust JSON parsing, and adding tests to strengthen reliability. Comfortable working deep in backend Java ecosystems, he focuses on practical fixes and features that reduce runtime errors and improve data fidelity. Colleagues rely on him for steady, test-driven improvements that quietly raise production stability. An oft-overlooked strength is his attention to edge cases—like invalid timestamps and filename output logic—that prevent subtle data corruption across pipelines.
13 years of coding experience
Stackoverflow
51reputation
2kreached
1answer
1question
Github Skills (10)
json-parser10
json10
javas10
jsonp10
parsing10
java10
testing10
data-loading9
unit-testing9
google-cloud-storage6
Programming languages (4)
Github contributions (5)
embulk/embulk
May 2015 - Aug 2019
Embulk: Pluggable Bulk Data Loader.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:26 commits, 32 PRs, 25 pushes in 4 years 3 months
Contributions summary:Satoshi primarily contributed to the Embulk data loading project by adding features to the CSV formatter plugin, including options for escaping and quoting. They also fixed a typo in Java-based plugin templates and added unit tests for PageReader/PageBulder. Additionally, the user implemented file name output logic and fixed JsonParser that throws TimestampParseException when JSON data contains invalid timestamp value. Their work focused on improving data formatting and testing to ensure the stability and reliability of the data loading process.
artemisembulkbulk-databulk-loaderdata-loader
embulk/embulk-output-azure_blob_storage
Oct 2015 - Oct 2018
Microsoft Azure Blob Storage file output plugin for Embulk
Contributions:26 PRs, 59 pushes, 31 branches in 3 years
embulk-pluginazure-blobblob-storageembulkblob
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