Think. Build. Deliver. With AI.

From goal alignment and spec planning to UI/UX design and AI-assisted development.
We put AI and engineering at the center of every delivery.

Book a 30-min discovery call Our services
ISO 27001:2022Information security certified
Taiwan × JapanDelivery team
AI-assisted developmentFaster delivery
Post-launch maintenanceStable & reliable
80+
Professionals
230+
Clients
520+
Projects
99.8%
Launch rate
Taipei, Taichung Kaohsiung, JapanTeam Locations
WHAT WE DO

Three Core Capabilities Entrust it all, or partner on a single piece

How many partners does it take to go from 0 to launch? JoinX is all you need.

01
Build the product right

Custom Design & Development

  • APP, Web, Systems, Software, Visual Design
  • System Integration, API Connection & Maintenance
  • Legacy Project Takeover & Refactoring
02
Make the workflow smarter

AI Integration

  • GenAI, LLM, RAG, AI Agent
  • AI Workflow Automation & Internal Tools
  • Connecting AI Capabilities to Existing Systems
03
Get CTO-level judgment

Technical Consulting

  • Tech Stack Selection, Architecture Planning & Assessment
  • Code Review & Performance Optimization
  • Team Mentoring & CTO-level Decisions
LATEST NEWS

Media Coverage

More Media Coverage
A Decade in the Making: TWJOIN's Founder on the Brand Upgrade — "Engaging the World in the Name of JoinX"
NEWS2026/08/06

A Decade in the Making: TWJOIN's Founder on the Brand Upgrade — "Engaging the World in the Name of JoinX"

TWJOIN Brand Upgrade: JoinX Service System Fully Evolved
NEWS2026/07/03

TWJOIN Brand Upgrade: JoinX Service System Fully Evolved

A New Level of Transcontinental Collaboration! JoinX Partners with Italian Design Giant GRB to Assist Southeast Asian Automaker's Digital Landing
NEWS2026/04/15

A New Level of Transcontinental Collaboration! JoinX Partners with Italian Design Giant GRB to Assist Southeast Asian Automaker's Digital Landing

The AI Transformation Wave in Software: JoinX Notes Taiwan's Transition to 'AI-Collaborative Implementation Phase'
NEWS2026/03/18

The AI Transformation Wave in Software: JoinX Notes Taiwan's Transition to 'AI-Collaborative Implementation Phase'

Co-existing with Talent, Refining Sustainable Value Amidst Change
NEWS2026/03/17

Co-existing with Talent, Refining Sustainable Value Amidst Change

BLOG ARTICLES

Blog Articles

More Articles
What Is an AI Consultant? A Complete Guide From Defining Needs and PoC to Real AI Deployment
Insights2026/07/24

What Is an AI Consultant? A Complete Guide From Defining Needs and PoC to Real AI Deployment

What Is an AI Adoption Service? A Complete Guide to the Process, Deliverables, Roles, and Acceptance Criteria When Outsourcing AI Implementation
Insights2026/07/17

What Is an AI Adoption Service? A Complete Guide to the Process, Deliverables, Roles, and Acceptance Criteria When Outsourcing AI Implementation

What Is an AI Agent? Five Things to Confirm Before Your Enterprise Adopts One
Insights2026/07/16

What Is an AI Agent? Five Things to Confirm Before Your Enterprise Adopts One