Building a full-featured crypto exchange is one of the most technically demanding and
high-stakes software challenges today. At FLLTECH, we’ve done it. Our in-house platform,
AIOChange, was designed to handle crypto buying, selling, swapping, wallet management, and
user verification in a secure and scalable environment.
Understanding AIOChange: What Does It Offer?AIOChange is more than a crypto swap—it’s a complete ecosystem:
● Spot trading with real-time charting and matching engine
● Crypto-to-fiat and fiat-to-crypto conversion
● User wallet system with cold & hot wallet management
● Referral and reward system
● Admin dashboard with full user analytics, KYC/AML control, and token listing panel
Core Technologies We Used
● Frontend: React.js, Next.js
● Backend: Java Spring, Node.js
● Database: PostgreSQL, MongoDB
●Blockchain Integration: Ethereum, Tron, Binance Smart Chain (via Web3.js & custom APIs)
● Security: JWT auth, 2FA, encrypted wallet modules, real-time transaction monitoring
The Key Challenges
1. Security-first architecture – Every exchange must be secure. We implemented:
● Two-layer wallet system (hot/cold)
● Daily auto-withdrawal limits
● Full encryption of sensitive data
2. Speed + Real-time Sync – We built a high-performance matching engine and
websocket-based real-time price feeds for smooth UX.
3. KYC/AML Integration – Regulatory compliance was built in from day one, using external
services (e.g., SumSub) and manual override panels.
4. Scalable Infrastructure – Hosted on scalable cloud clusters with containerized services
(Docker + Kubernetes)
What We Learned
● A crypto exchange is not just a technical product—it’s a financial platform.
● KYC, liquidity management, and user trust are as important as code.
● Custom admin tools save hours of manual work for operational teams.
Can We Build One for You?
Yes. Whether you’re building a crypto converter, mini-exchange, or a full DeFi platform, we’ve
done it. We’ll help you launch with confidence, security, and growth in mind.
Let’s build your exchange or crypto product the right way.
