Kunxian Xia
Cryptography Engineer at Scroll
Shanghai, Shanghai, China
Summary
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Rockstar🎓
Top SchoolKunxian Xia is a cryptography engineer with a decade of hands-on experience building secure blockchain and distributed systems, currently contributing at Scroll in Shanghai. He blends a strong theoretical foundation from an M.Sc. in Mathematics with practical software engineering skills earned during a Software Engineering bachelor's at Harbin Institute of Technology. Throughout roles at Onchain and Trapdoor Tech he focused on crypto engineering, shaping protocol-level logic and security-sensitive components. On GitHub he has contributed backend and smart contract work to the DNA blockchain project, improving authentication contracts, storage models, random number generation, and edge-case safety. Colleagues describe him as detail-oriented with a knack for refactoring legacy crypto code into more robust, auditable implementations. He often bridges the gap between mathematical rigor and production constraints to deliver pragmatic, secure solutions.
10 years of coding experience
5 years of employment as a software developer
Bachelor's degree, Software Engineering, Bachelor's degree, Software Engineering at Harbin Institute of TechnologyMaster of Science (M.Sc.), Mathematics, Master of Science (M.Sc.), Mathematics at Shandong University
Stackoverflow
13reputation
662reached
0answers
1question
Github Skills (9)
smart-contracts10
user-authentication10
authentication10
go10
blockchain10
cryptography9
ontology9
security8
berkeley-db6
Programming languages (11)
Github contributions (5)
DNAProject/DNA
Apr 2018 - Aug 2018
Distributed Networks Architecture Blockchain
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 commits in 4 months
Contributions summary:Kunxian primarily contributed to the back-end logic and smart contract development of the blockchain project. They refactored and re-implemented authentication contracts, including changes to storage models, and added event notifications. Furthermore, the user introduced security enhancements by generating random numbers using crypto/rand and fixed out-of-range errors. The user's work also involved refactoring, address-type adjustments, and refactoring the withdraw function.
blockchain-architectureblockchainblockchain-networkarchitecturedistributed
kunxian-xia/ontology
Apr 2018 - Aug 2018
Official Go implementation of the Ontology protocol. https://github.com/ontio/documentation
Contributions:64 pushes, 13 branches in 3 months
golanggeneontologyowl
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