Dongyeon Lee
백엔드 엔지니어 at 팀모노리스(코들)
South Korea
Summary
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SeniorDongyeon Lee is a backend engineer with 10 years of experience, currently focused on Rails development and based in South Korea. He has recent professional roles at Langdy and HCG and now works at 팀모노리스(코들), bringing practical production experience across multiple startups. An active open-source contributor, he has enhanced core data-integration functionality in the high-profile SeaTunnel project—improving connectors for MongoDB and ClickHouse and refining S3/OSS file catalog behavior. His work shows a strong emphasis on robust data conversion, connector configurability, and efficient data processing in distributed systems. Comfortable shipping backend features end-to-end, he blends Rails expertise with hands-on contributions to large-scale data tooling. Colleagues can expect a pragmatic engineer who pairs careful data handling with a track record of improving interoperability in complex ETL projects.
10 years of coding experience
2 years of employment as a software developer
Japanese
Github Skills (9)
javas10
mongodb10
data-integration10
java10
mongodb-database10
clickhouse10
streaming9
data-engineering9
apache8
Programming languages (13)
Github contributions (5)
apache/seatunnel
Mar 2024 - Nov 2024
SeaTunnel is a next-generation super high-performance, distributed, massive data integration tool.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 reviews, 10 PRs, 18 comments in 7 months
Contributions summary:Dongyeon primarily contributed to the backend functionality of the SeaTunnel project, focusing on connector improvements and data conversion logic. Their work involved enhancing the MongoDB connector to handle double-precision floating-point values and adding support for custom configurations in the Clickhouse source connector. Furthermore, the user implemented changes to a filter transform and refined the file catalog implementations for S3 and OSS. These changes indicate a focus on expanding data integration capabilities and improving data processing efficiency.
servicenowseatunneldata-streametl-frameworkintegration-platform
loustler/massemble
Mar 2020 - Jun 2023
My Assemble all
Contributions:18 PRs, 122 pushes, 15 branches in 3 years 3 months
assemblelinux
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