Kim
CEO at Planetarium
Singapore, Central, South Korea
Summary
👤
Senior🎓
Top SchoolKim is a serial entrepreneur and CEO with 14 years building products at the intersection of user-centered design and blockchain-enabled services. He has led startups and technical teams—from co-founding Spoqa and early-stage ventures to heading blockchain development at LINE Plus and now leading Planetarium—combining hands-on backend engineering with product and UX sensibilities. His work includes substantive open-source contributions to Libplanet, a .NET blockchain for on-chain gaming, where he expanded core transaction and GraphQL capabilities. Trained in digital content convergence at Seoul National University and grounded in business and CS from Sogang, he blends strategic leadership with deep implementation experience. Colleagues would call him a pragmatic hacker who turns user-focused ideas into resilient, scalable systems.
14 years of coding experience
18 years of employment as a software developer
Master Digital contents convergence, Master Digital contents convergence at Seoul National UniversityBachelor Business Administration Computer Science, Bachelor Business Administration Computer Science at Sogang University
Github Skills (10)
net10
asp-net10
graphql10
dotnet10
csharp10
wordpress-graphql10
wpgraphql10
blockchain10
dotnet-core10
game-development5
Programming languages (13)
Github contributions (5)
planetarium/libplanet
Mar 2019 - Jun 2019
Blockchain in C#/.NET for on-chain, decentralized gaming
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 review, 20 commits, 9 PRs in 2 months
Contributions summary:Kim primarily contributed to the back-end functionality of the blockchain project. Their work included implementing GraphQL endpoints and related types, refactoring code for improved structure, and upgrading dependencies like Nito.AsyncEx. They also added support for new data types, such as transactions and actions, demonstrating a focus on expanding the project's capabilities. Overall, the user's commits indicate an active role in developing and enhancing the core logic and features of the Libplanet blockchain.
dotnetlibplanetp2pblockchainplanetarium
nowbusking/getqr
Nov 2015 - Jan 2021
Web-based QR code generator. It is Google Chart Tool's replacement.
Contributions:3 PRs, 13 pushes in 5 years 2 months
herokuqrcodechartqrcode-generatorweb-based
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