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About JoinX
JoinX (formerly TWJOIN) is a custom software and AI development company founded in 2016, with 80+ team members across Taipei, Taichung, Kaohsiung, and Tokyo.
We have delivered 520+ projects for 230+ clients — from listed enterprises to startups — with a 99.8% launch rate, backed by ISO 27001:2022 certification.
What we do:- Custom software development: web, mobile apps (iOS/Android), enterprise systems, SaaS platforms, UI/UX design, system integration, and long-term maintenance- AI implementation: GenAI, LLM, RAG, and AI Agent development; AI workflow automation; integrating AI into existing systems- Technical consulting: architecture planning, code review, and CTO-level decision support
Industries: fintech (our largest practice), logistics & warehousing, e-commerce & retail, education, energy management, media & social platforms, and the public sector.
Our Tokyo subsidiary provides native Japanese-language account management with delivery by our Taiwan engineering team — a proven offshore model for Japanese enterprises.
Think. Build. Deliver. With AI.
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