Looking for a Flutter developer / team to create a crypto wallet
602 USD Hello!
Looking for a developer or team with experience in Flutter and Web3 to build a non-custodial crypto wallet from scratch for iOS and Android. We are also considering proposals for adapting existing open-source solutions or ready-made products.
Requirements:
Implementation only in Flutter
Experience with Web3 and EVM wallets is mandatory
Knowledge of Dart, interaction with Web3 API, JSON-RPC, ethers.dart or web3dart
Ability to work with secure storage (Keychain / Keystore)
Understanding of dApp architecture and security best practices
What needs to be implemented:
Support for EVM networks: Ethereum, BNB Smart Chain, Polygon, Arbitrum, Optimism, etc.
Wallet creation/import (seed phrase, private key)
Display balance and tokens (ERC-20, BEP-20, etc.)
Send/receive coins and tokens, gas fee setup
Built-in Swap via 1inch / 0x / Paraswap (with our fee)
Support for custom RPC and tokens
Secure local key storage (Secure Storage, biometric)
User-friendly and modern UI (dark/light theme, multilingual)
Starting with an MVP, but planning to develop into a full product with ongoing support.
Open to fixed or phased payment — discussion is possible.
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12 days602 USD
641 14 1 1 12 days602 USD
Hello, my name is Alexander, I am from Ukraine (UTC +2)
For more information about my skills, visit my portfolio.
You can be assured that I will provide you with a quality application to receive a positive review from you.
Your project quite interested me because working on such projects is a great pleasure for me and because I have over 8 years of development experience.
I have worked as an Android developer in a small company in Kharkiv, where I improved my skills. I also worked as a Flutter developer remotely in a team for a company.
I have experience in:
…
- Flutter, Dart
- Java, Kotlin
- Android SDK
- Retrofit, Dagger2, Coroutines + Flows,
- ViewBinding/DataBinding + ViewModel + LiveData
- Navigation architecture component
- MVVM Clean architecture
- Work Manager
- Room
- Paging Library
- Firebase, Google Cloud, AWS, GraphQL, Stripe
- Linux, Unix
- Git, Gradle and so on
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1 day602 USD
766 16 2 4 1 day602 USD
Hello, I am already writing a crypto wallet for https://www.alfa.cash/ru
I can implement it according to your requirements
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1 day602 USD
2580 53 0 1 1 day602 USD
I have extensive experience in developing various mobile applications for Android & iOS, including on Flutter. Well acquainted with the necessary stack
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