Jang-ho Hwang
Software Architect at Changer
Heidelberg, Baden-Württemberg, Germany
Summary
👤
Senior🎓
Top SchoolJang-ho Hwang is a Heidelberg-based software architect and principal-level individual contributor with over two decades of experience building backend platforms, SaaS products, mobile apps, and cloud systems, and a recent focus on AI-native product delivery. He designs and ships end-to-end solutions—product shaping, architecture, implementation, deployment, and operations—and recently launched a B2B LLM gateway and multiple production AI services across image, video, and note-taking. Technically fluent in Python, Rust, TypeScript, PostgreSQL and AWS, he built a provider-agnostic, OpenAI-compatible API proxy in Rust that handles streaming, tool calling, multimodal inputs, BYOK encryption and PII masking for Korean data privacy. Most effective as a hands-on senior IC, he excels at turning AI prototypes into reliable production products and at operational reliability across heterogeneous stacks. Open to fractional principal engineering and architecture engagements across Germany and the EU, he prefers autonomous teams that value clarity and strong engineering judgment. An operator at heart, he often ships solo from UX design through production, combining pragmatic product sense with systems-level rigor.
16 years of coding experience
19 years of employment as a software developer
Computer Software Engineering, Computer Software Engineering at Chungkang College of Cultural IndustriesBachelor's, Computer Science, Bachelor's, Computer Science at Hanyang Cyber University
German, Korean, English
Github Skills (10)
angular-component10
intellij-plugin9
intellij9
flutter7
angular7
flutter-engine5
macos4
window-manager4
vim4
javascript2
Programming languages (3)
Github contributions (5)
rath/Vimdow
Jun 2013 - Jan 2023
Contributions:32 commits, 4 pushes in 9 years 9 months
vimosxwindowmacoswindow-manager
rath/angular-folding
Oct 2017 - Jul 2022
IntelliJ Plugin that groups Angular component files
Contributions:1 release, 18 commits, 10 PRs in 4 years 9 months
groupsintellij-pluginangularangular-componentintellij
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