We provide system development and integration services that translate your business processes into concrete features. We resolve gaps where off-the-shelf software falls short, connect scattered legacy systems to unify your data flow, and build a solid digital foundation through automation and structured data — ready to scale with your future needs.
Custom software · Systems integration · AI
Custom software built around your business
Build systems, websites and apps that fit your workflows. Where AI helps, plan knowledge search and automation into the same solution.
Built for the way you work.
From custom development and web platforms to system integration and operations — JoinX helps enterprises transform requirements into long-term, scalable systems.
Book a 30-minute discovery callSelected work
Real needs. Working software.
Explore relevant projects, then discuss an approach that fits yours.
Taipei City Gov. Dept. of Education
Taipei Cooc-Cloud and Parent-Teacher-Student Integration Platform
UDN Digital
Development of Smart Audiobook Generation and AI Character Recognition System
Formosa Optical
Brand Official Website and E-commerce System Integration
GoodParty
Redefining Networking and Event Interaction in the Slasher Era
Fundhot
A more intuitive, context-aware fund investing community experience
Hanzi Tree - Bilingual Literacy
Bilingual Literacy App Development
AI, where it makes a difference.
AI-assisted development is how we work. AI integration adds capabilities to your systems. We assess the need before recommending either.
Explore AI integrationUDN Digital
Development of Smart Audiobook Generation and AI Character Recognition System
View project ↗Clarity at every stage.
Rigorous phase-by-phase management ensures your project lands precisely from concept to launch, with warranty and ongoing maintenance included.
Requirements Discovery
We deeply understand your business model, core features, and budget direction, then break requirements into actionable development items. A project manager assembles the team and launches comprehensive planning to keep progress clear and controlled.
UI/UX Design
User experience is the foundation. We create highly usable interfaces and workflows. Rigorous UX planning ensures smooth user journeys, and we establish a complete brand visual system.
Development & Testing
Development follows standard processes and ISO 27001 requirements, with automated testing, version control, code reviews, and multiple security checks — maintaining stability in performance, quality, and information security.
Maintenance & Warranty
Warranty terms are clearly stated in the contract, with duration depending on development scope and complexity, and free corrections within the warranty period. We also offer long-term maintenance services after the warranty ends.
A team you can build with.
No Sub-contracting
We insist on full in-house ownership, ensuring precise control over development details, technical quality, and security.
100% Source Code Delivery
Code is never resold. We deliver complete source code, protecting your digital asset ownership and refusing technical lock-in.
Consultant-Level Requirements Analysis
Senior engineers and project managers diagnose your needs and translate business goals into concrete, actionable technical solutions.
On-Time Delivery & Quality Commitment
Strict adherence to standardized development workflows ensures clear, controllable project progress with high-quality, on-time delivery.
Maintenance & Warranty
We provide maintenance contracting and warranty support, eliminating 'orphaned project' anxiety and letting your system evolve flexibly.
Integrity & Transparency
Our commitment to honest operations — through transparent communication and reporting — makes us a powerful technical partner in your digital transformation.
Before we get started
Let’s build together
Let’s talk about your next system.
You do not need a finished specification
Our team will contact you to confirm a time after receiving your inquiry.
- The problem to solve
- Your time-consuming tasks, intended users and the outcome you want to improve.
- Systems and data
- Tools to integrate, available data, permissions and whether AI could help.
- Budget and release priorities
- Estimate cost from functionality and integration complexity. Separate launch essentials from later improvements; agree timing after reviewing requirements.