Jianming Chen
Founder And CEO at Centax Inc.
Saitama Prefecture, Japan
Summary
🤩
Rockstar🎓
Top SchoolJianming Chen is a seasoned software founder and engineer with 18 years of experience building backend systems, developer tools, and consumer apps while leading his own consulting company in Japan. As Founder and CEO of Centax and formerly lead of the Toolchain and Crypto Wallet team at Nervos Network, he blends product leadership with hands-on contributions to open-source projects like the Nervos CKB blockchain and the Peatio asset exchange. His work focuses on improving data integrity, code organization, internationalization, and maintainability in distributed systems and exchanges. A longtime Ruby/Rails and iOS developer, he has a track record of migrating and modernizing e-commerce platforms and shipping cross-platform services. Based in Saitama and originally from China, Jianming balances engineering with hands-on hobbies—building flight sims and boxing—that reflect his mix of precision and discipline. He brings entrepreneurial grit, deep backend expertise, and a pragmatic approach to delivering secure, maintainable software.
17 years of coding experience
15 years of employment as a software developer
BS, Computer Science and Technology, BS, Computer Science and Technology at Yanshan University
English, Chinese, Japanese
Stackoverflow
10,834reputation
762kreached
130answers
1question
ruby
top-5%
ruby-on-rails
top-5%
macos
top-5%
mongodb
top-1%
objective-c
top-5%
cocoa
top-5%
Github Skills (33)
ruby-rails10
data-modeling10
rspec10
rails10
ruby10
rpc10
blockchain10
mongoid10
activerecord10
rust10
refactoring10
mongodb10
i18n-node9
ios9
objective-c9
Programming languages (18)
Github contributions (5)
hpyhacking/peatio
Apr 2014 - Dec 2014
An open-source assets exchange.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:29 commits in 8 months
Contributions summary:Jianming primarily contributed to the back-end of the "peatio" project, an open-source assets exchange. Their commits focused on refining the data models, specifically the `IdDocument`, `Member`, and `Currency` models, through adjustments like removing duplicated fields and improving the behavior of the `#identity` method. Additionally, they refactored the codebase by extracting an `ActiveYamlBase` class and addressed i18n support in mailers and generator files. These changes suggest a focus on enhancing data integrity, code organization, and internationalization within the exchange platform.
ethereumassetscryptocurrencyexchange
nervosnetwork/ckb
Nov 2018 - Apr 2020
The Nervos CKB is a public permissionless blockchain, and the layer 1 of Nervos network.
Role in this project:Back-end Developer
Back-end DeveloperContributions:21 commits, 14 PRs, 2 pushes in 1 year 4 months
Contributions summary:Jianming primarily contributed to the back-end functionalities of the Nervos CKB blockchain. Their work involved refactoring code related to RPC server, types, and CLI, improving code maintainability and readability. Significant changes include replacing data types, renaming variables for clarity, and removing obsolete features. The user also addressed documentation issues and improved command-line interface messages.
permissionlessconsensusrustblockchainnervos
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