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I will build a secure web3 crypto wallet app for ios and android
Abanoob Samy
About this gig
Are you looking to launch a military-grade, non-custodial Web3 Crypto Wallet?
In the world of DeFi, security and performance are not optionalthey are the foundation. Most crypto apps fail because of poor key management or UI freezes during high-volatility market events.
I specialize in architecting highly secure, "Zero-Crash" mobile ecosystems. I build native applications using Kotlin/Jetpack Compose and Swift/SwiftUI, ensuring your users assets remain strictly under their control through hardware-backed isolation and biometric signing.
What this Gig offers:
- Native Development: High-performance apps for iOS and Android.
- Non-Custodial Security: Private keys stored exclusively in the iOS Secure Enclave or Android Keystore.
- Multi-Chain Integration: Support for Ethereum, Polygon, Base, Solana, and more.
- Smart Contract Logic: Secure ERC-20 transfers, DEX swapping, and NFT galleries.
- Biometric Authentication: FaceID/TouchID integration for transaction signing.
- Clean Architecture: Strictly using MVVM/MVI patterns for a scalable codebase.
I don't just build apps; I engineer financial-grade software designed to handle millions of transactions safely.
Contact me before placing an order to di
Get to know Abanoob Samy
Abanoob Samy
Senior Mobile Software Engineer and Web3 Expert
- FromEgypt
- Member sinceJan 2020
- Avg. response time1 hour
Languages
English, Arabic
I am a Senior Mobile Software Engineer with 5 years of experience architecting highly scalable, crash-free applications. I specialize in complex systems:
• Web3/Crypto Wallets: Non-custodial, hardware-backed security, & smart contracts.
• AI & LLM Apps: High-performance Vision AI integration.
• Real-Time Systems: Battery-optimized GPS tracking & massive WebSocket streams.
I strictly use Clean Architecture (MVVM/MVI) to ensure your app is maintainable and ready for millions of users. Let's build production-ready software.
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Other Mobile App Development Services I Offer
FAQ
Is this a custodial or non-custodial wallet?
This is strictly a non-custodial (self-custody) wallet. Private keys are generated and encrypted locally on the user's device. You will never have access to user funds, which significantly reduces your legal and security liability.
Will the app be accepted by the App Store and Google Play?
Yes. I follow strict developer guidelines for crypto applications. By implementing a non-custodial architecture and following standard financial app UI patterns, I ensure the app is ready for a successful submission.
Can we add more blockchain networks after the initial launch?
Absolutely. I build the networking layer using Clean Architecture, which decouples the UI from the blockchain logic. This makes adding new EVM-compatible chains or Layer 2s seamless without requiring an app rewrite.
Do you provide the backend or RPC nodes?
I integrate with reliable RPC node providers (like Alchemy or Infura). While you will need your own API keys for production, I will handle the secure architecture setup so your secrets are never exposed in the client-side code.
