William Seyler
Senior Software Developer at Pentaho from Hitachi Vantara
Orlando, Florida, United States
Summary
🤩
Rockstar🎓
Top SchoolWilliam Seyler is a seasoned Senior Software Developer with 13+ years focused on backend engineering, data integration, and business intelligence, currently driving core platform work at Pentaho (Hitachi Vantara) from Orlando. He brings deep expertise in Java, Rails, databases, data warehousing and ETL, with hands-on experience improving scheduler logic, cross-version MySQL scripts, and VFS-based file handling in high-profile open-source Pentaho projects. His contributions reveal a pragmatic attention to robustness and interoperability—fixing file-password handling, Avro lookups, and UI permission issues that directly improve large-scale data workflows. Comfortable in Scrum and Linux environments, he balances legacy compatibility with incremental refactors to keep enterprise BI systems reliable and maintainable.
13 years of coding experience
6 years of employment as a software developer
BS, Computer Science, BS, Computer Science at Troy University in Montgomery
Github Skills (25)
avro10
quartz-scheduler10
big-data10
java10
etl10
javas10
parquet10
mysql9
hadoop9
databases9
file-handling9
uid8
database-design8
front-end-development8
ui-design8
Programming languages (3)
Github contributions (5)
pentaho/pentaho-platform
Mar 2013 - Mar 2020
Pentaho BA Server Core
Role in this project:
Back-end Developer
Back-end DeveloperContributions:16 commits, 87 PRs, 22 pushes in 7 years 1 month
Contributions summary:William primarily focused on back-end improvements and bug fixes within the Pentaho platform. Their contributions involved refactoring the scheduler logic, specifically changing the `DefaultBlockoutManager` to utilize the same scheduler as the QuartzScheduler. They also addressed an issue in the Solution Browser panel by correcting an I18 key and the alignment of the "missing plugin" dialog's elements. Additionally, the user modified the database creation scripts for compatibility with multiple versions of MySQL.
server-corepentaho
pentaho/big-data-plugin
Aug 2018 - Jan 2023
Kettle plugin that provides support for interacting within many "big data" projects including Hadoop, Hive, HBase, Cassandra, MongoDB, and others.
Role in this project:Back-end Developer
Back-end DeveloperContributions:26 commits, 97 PRs, 52 pushes in 4 years 5 months
Contributions summary:William primarily contributed to the Pentaho big data plugin by fixing bugs and improving the functionality of input and output steps related to various data formats. Their work involved modifying code to correctly handle file passwords and to ensure correct data lookup operations for Avro input steps. They also added "FILENAME" to the required injection strings for multiple file formats, indicating a focus on file handling and data processing within the plugin.
operationhadoop-hivefeature-storehive-hbasemongodb
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