Jianjun Wu
IOS 独立开发 at 个体经营/自由职业
Chaoyang District, Beijing, China
Summary
👤
Senior🎓
Top SchoolJianjun Wu is an experienced iOS engineer and independent developer with 14 years building mobile apps and leading teams across startups and consumer products in Beijing. He has held technical leadership roles at Douban, Keep, and as a co-founder, before moving to independent contracting where he focuses on practical, efficient solutions that improve everyday user experiences. Jianjun is a hands-on architect who has improved stability and memory management in CoreText through notable contributions to the widely used dtcoretext repository, demonstrating attention to low-level performance and reliability. Colleagues describe him as honest, efficient, and continuously learning—qualities he pairs with a long-term commitment to balancing professional growth and family life since becoming a father in 2013.
14 years of coding experience
7 years of employment as a software developer
Bachelor of Software Engineering, Computer Software Engineering, Bachelor of Software Engineering, Computer Software Engineering at Nanjing University
English
Github Skills (5)
memory-management10
objective-c10
ios10
coretext10
caching9
Programming languages (7)
Github contributions (5)
Cocoanetics/DTCoreText
Apr 2012 - Apr 2012
Methods to allow using HTML code with CoreText
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:6 commits in 2 days
Contributions summary:Jianjun primarily focused on fixing memory issues and optimizing the CoreText implementation within the `dtcoretext` repository. Their contributions involved modifying the `DTAttributedTextContentView.m` and `DTCoreTextParagraphStyle.m` files to address memory management concerns and improve the caching mechanism. Additionally, they updated the project's target to iOS 5 compatibility and refined the handling of paragraph style keys. The user's work demonstrates a focus on improving the stability and efficiency of the CoreText rendering engine.
coretext
tonycn/OWPhotoBrowser
Apr 2014 - Aug 2014
Contributions:11 commits, 5 pushes, 1 tag in 4 months
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