Sfoglia categorie
Esplora
Fiverr Pro
Italiano
$
USD
I will architect secure crypto payment infrastructure and web3 backend systems
Fullstack Web3
full-stack blockchain developers turning ideas into scalable Web3 products. We build DApps, smart contracts, RWA tokenization, crypto wallets & neobanks, fund infrastructure, multi-chain systems, NFTs...
Informazioni su questo servizio
Broken crypto payment systems don't fail loudlythey leak money, create delays, and expose businesses to security risks. Poor backend architecture, unstable wallet integrations, and weak transaction handling lead to failed payments, lost revenue, and zero user trust.
I architect secure, scalable crypto payment infrastructure and Web3 backend systems designed for reliability, speed, and full control. From smart contract logic to API architecture and wallet flows, I build systems that process transactions seamlessly, verify on-chain activity, and eliminate failure points.
What you get:
- End-to-end crypto payment architecture
- Secure backend & smart contract integration
- Multi-chain support & wallet systems
- High-performance APIs & transaction handling
Why choose me:
I don't just build I fix, optimize, and secure your entire system, ensuring zero downtime and maximum efficiency.
I also build:
- Stablecoin systems (mint/burn, reserves)
- Cross-chain infrastructure
- Crypto banking platforms
- On-chain analytics dashboards
- Compliance & KYC systems
- Launchpads & Web3 SaaS platforms
Web3 Backend, Crypto API, Secure Payments, Blockchain Infrastructure, Zero Failure Systems
Message me to get started
Proteggi le tue risorse e le tue informazioni.
I servizi di criptovaluta si concentrano solo sullo sviluppo e la programmazione. Non condividere mai dati sensibili o chiavi private con altri.
Altri servizi della categoria Sviluppo e soluzioni per blockchain offerti da me
FAQ
Do you support recurring subscriptions in crypto?
Yes. I build hybrid architectures using smart contract allowances and backend automation to enable seamless, "Stripe-style" recurring billing for Web3 services.
Can users pay with credit cards or bank transfers?
Absolutely. I integrate optimized fiat-to-crypto on-ramps (like Transak, MoonPay, or Stripe) so non-crypto users can pay with fiat while you receive assets.
Which blockchains do you support?
I specialize in EVM-compatible chains (Ethereum, Polygon, Base, Arbitrum) as well as Solana. I can also build cross-chain bridges for multi-network payment support.
Is the payment infrastructure non-custodial?
Yes. All funds flow directly into your smart contracts or specified merchant wallets. I never have access to your private keys or customer funds.
How do you handle high gas fees during congestion?
I implement EIP-1559 gas-estimation logic and transaction batching to ensure your users pay the lowest possible fees without transactions getting stuck.
Is the merchant dashboard mobile-friendly?
Yes. The dashboards I build in the Standard and Premium tiers are fully responsive, allowing you to track revenue and settlements from any device.
Do you provide documentation for the backend API?
Every project includes professional Swagger/OpenAPI documentation, making it easy for your internal team to maintain or scale the system later.
How do you ensure the security of the smart contracts?
I use battle-tested OpenZeppelin libraries and follow strict security patterns like re-entrancy guards and multi-sig requirements to protect against exploits.
