Kyunus Kang is an experienced backend engineer and independent software consultant with over a decade of delivering high-throughput, resilient systems, most recently as a Staff Engineer at 11STREET. He designs event-driven architectures and led the development of an AI-powered product chatbot using GPT-4o, replacing polling with SSE and cutting API failure risk by over 90% while maintaining zero downtime across hundreds of sessions. Skilled in Java, Spring Boot, Kafka, Redis, and MongoDB, he combines Domain-Driven Design and pragmatic operational practices to improve scalability, observability, and MTTR. He has a track record of migrating legacy systems with zero-downtime strategies and boosting feature delivery velocity, and he pairs hands-on coding with mentoring and cross-team collaboration. Based in Canada, he focuses on building robust customer-facing systems that turn AI capabilities into reliable, measurable product value.
10 years of coding experience
18 years of employment as a software developer
Bachelor of Engineering - BE Electrical Electronics and Computer Engineering, Bachelor of Engineering - BE Electrical Electronics and Computer Engineering at Dankook University
Contributions:9 commits, 1 push, 1 branch in 11 days
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Kyusun Kang - Independent Software Consultant at Self-Employed