Budget: 15000 UAH Deadline: 10 days
Good afternoon, I will do it, write to me in private messages.
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It is necessary to rewrite this project
https://github.com/gemwalletcom/gem-ios?tab=security-ov-file
Task: Redesign the existing source code and launch the project
Dear developers,
I have a ready-made open-source cryptocurrency wallet (for example, Gem Wallet), and I need to adapt it to the specific requirements of my project and launch it for users.
Main tasks:
1. Code adaptation to my needs: The structure needs to be changed and the system configured so that all user funds are stored in one central wallet. Each user will have a unique wallet for receiving and sending funds and will only see their transactions.
2. Individual cryptocurrency addresses: Each user must be assigned a unique address for receiving funds. However, all funds will go to the central wallet, and users will only see transactions that pertain to them.
3. Generation and storage of Seed phrase: Users should be able to create their Seed phrase for recovering access to their wallet. The Seed phrase must be stored only on the user's device, and access to it should be maximally secure.
4. Security and anonymity: It is important to ensure a high level of security, particularly for protecting users' private keys and personal data. All transactions must be anonymous and secure.
5. Preparation for launch: After adapting the code, testing and stability checks of the system need to be conducted, server infrastructure configured, and applications prepared for launch on iOS and Android platforms.
The project must be ready for end-users after changes are made to the source code. It is also necessary to ensure:
• A user-friendly and intuitive interface.
• Maximum level of anonymity and security for users.
• All functions of a cryptocurrency wallet, including sending and receiving funds, viewing transaction history, and managing balance.
The project must be completed in the shortest possible time and meet all modern security and functionality standards.
Technical specifications
Log in or register, to view the originalIt is necessary to rewrite this project
https://github.com/gemwalletcom/gem-ios?tab=security-ov-file
Task: Redesign the existing source code and launch the project
Dear developers,
I have a ready-made open-source cryptocurrency wallet (for example, Gem Wallet), and I need to adapt it to the specific requirements of my project, as well as launch it for users.
Main tasks:
1. Code adaptation to my needs: The structure needs to be changed and the system configured so that all user funds are stored in one central wallet. At the same time, each user will have a unique wallet for receiving and sending funds, and will only see their transactions.
2. Individual cryptocurrency addresses: Each user should be generated a unique address for receiving funds. However, all funds will go to the central wallet, and users will only see those transactions that relate to them.
3. Generation and storage of Seed phrase: Users must be able to create their Seed phrase for restoring access to their wallet. The Seed phrase must be stored only on the user's device, and access to it must be maximally secure.
4. Security and anonymity: It is important to ensure a high level of security, particularly for protecting users' private keys and their personal data. All transactions must be anonymous and secure.
5. Preparation for launch: After adapting the code, testing and stability checks of the system need to be conducted, server infrastructure configured, and applications prepared for launch on iOS and Android platforms.
The project must be ready for use by end users after changes are made to the source code. It is also necessary to ensure:
• A convenient and intuitive interface.
• Maximum level of anonymity and security for users.
• All functions of the cryptocurrency wallet, including sending and receiving funds, viewing transaction history, and managing balance.
The project must be completed in the shortest possible time and meet all modern security and functionality standards.
Technical specifications
Log in or register, to view the originalBudget: 15000 UAH Deadline: 10 days
Good afternoon, I will do it, write to me in private messages.
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We're building a regulated real estate tokenization platform that converts institutional-grade properties into ERC-3643 security tokens with built-in ONCHAINID compliance. Our platform enables fractional ownership, secondary trading, and DeFi integration—making premium real estate investment accessible to everyone. I am looking for a talented blockchain $ smart contract developer. Tech Stack: - Blockchain: Solidity (ERC-3643 with ONCHAINID) on Arbitrum One, Hardhat - Backend: Node.js/TypeScript, Express, PostgreSQL, Redis - Frontend: React/TypeScript, ethers.js/wagmi, Tailwind - Infrastructure: AWS, Docker, GitHub Actions Blockchain Developer Responsibilities: - Design and deploy ERC-3643 smart contracts with compliance logic - Implement ONCHAINID identity and KYC whitelist integration - Coordinate external security audits and optimize gas usage - Build DeFi lending integrations (staking, yield, collateralization)
We need to connect a payment system to a high-risk site. The main requirements are the acceptance of fiat funds and the withdrawal of funds in cryptocurrency. Preferably no KYC. Only those who have had similar experience. Price is negotiable.
Tech Stack - React: Responsive and dynamic front-end development - Node.js: Robust backend operations - Web3: Multi-chain cryptocurrency integration - Solidity: Smart contract development Project Objective Develop a comprehensive multi-chain staking platform for a popular gaming ecosystem, enabling seamless cryptocurrency interactions, NFT marketplace integration, and enhanced user experience across multiple EVM-compatible blockchain networks. Whitepaper We've been more than just a mobile gaming studio; we are visionaries and innovators in the gaming world. Our team is formed by mobile gaming industry talents and passionate gamers, and is dedicated to pushing the boundaries of what's possible in mobile gaming. Our expertise focuses on hybridizing genres to create something truly unique which we adapt for transitioning Web2 gaming to Web3 gaming titles. From Racing RPGs to Action Strategy games, we are constantly experimenting and blending genres to offer new gaming experiences. Our games aren't just a form of entertainment; they're immersive journeys that engage, challenge, and captivate our players. We embody our mission to not merely entertain but to transport our audience into an extraordinary universe of interactive world within Web3 gaming. - Front-End Development - Back-End Development - Landing Page Redesign - Multi-Chain Integration - NFT Marketplace - Testing & Quality Assurance - Deployment & Maintenance
What needs to be done: conduct an independent expert consultation on the implementation of multisig wallets to protect the company's treasury funds, which operates with high-volume payment processing in USDT across three networks - TRON (TRC20), BNB Smart Chain (BEP20), and Ethereum (ERC20). Requirements: (1) review available market solutions and recommend the optimal one for our profile - a single custodial platform for all three networks or a combination of separate tools for EVM and TRON; (2) propose a signature architecture (e.g., 2-of-3), key distribution among roles, thresholds for quick/large payments; (3) provide recommendations for key storage (hardware wallets, HSM) and procedures in case of key loss or compromise. For whom: the team administering the company's treasury with a high volume of crypto transactions. Success criterion: a ready recommended architecture with a clear implementation plan. Requirements: practical experience in implementing multisig, specifically with TRON (not just EVM), experience with specific solutions (Safe/Gnosis, Fireblocks, BitGo, Cobo, or native TRON multisig), preferably with cases of previous implementations.