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Шукаемо розробника контрактів Solidity для додаткових інтеграцій чейнів до валета. Фул тайм.

...Analyze and identify areas of improvement in the game's security, fairness, and user experience. Design and implement blockchain-based solutions to enhance the game's functionality, transparency, and reliability. Integrate smart contracts into the game's logic to ensure fair and verifiable outcomes. Develop and deploy the necessary infrastructure to support blockchain integration, including nodes, wallets, and APIs. Optimize the game's performance by implementing efficient blockchain protocols and algorithms. Conduct thorough testing and debugging of the upgraded game to ensure its stability and functionality. Collaborate with the UI/UX team to enhance the game's user interface and overall design. Stay up-to-date with industry trends and advancemen...

...Decentralized Applications Smart contracts play a crucial role in the integration of wallet connect feature and decentralization of the game. Smart contracts are programs stored on the blockchain that enable automated compliance and execution of agreements without an intermediary. Therefore, it's essential to work with developers who are proficient in writing smart contracts using languages such as Solidity and have experience in developing decentralized applications . Conclusion In conclusion, to achieve the goal of integrating wallet connect feature and making the game more decentralized through the use of smart contracts, it is important to hire a blockchain developer with expertise in DApps development, smart contract writing, and experience with decentralized technol...

I need integrate flashloans from balancer v2 , non profit preventor, no profit = no trade. Integrate flashswap from uniswap, and arbitrage multi hops from 3 paths , now its 2’paths Inneed run this in l2 like arbitrum one, i have full node there I dont need create nothing from zero, just add flashloans balancerv2 , flashswap Uniswap , profit preventor, and 3 hops arbitrage Current repo for add this If you ate bussy dont bid! No pre-payments! Only escrow , need the source code

I hold a pre-existing Token contract, and I require a blockchain expert to help me deploy the token to the Ethereum mainnet. The freelancer should possess excellent command over Solidity and Git and: -Have extensive experience in deploying tokens on the Ethereum network. -Exhibit a strong understanding of Ethereum standards, specifically ERC20. -Be well-versed with Mintable and Burnable tokens. Please note, while deployment experience is paramount, in-depth knowledge in token minting and burning will be a huge plus. Interested parties must showcase previous works in this domain.

I'm in need of a Solidity expert to assist with developing smart contracts for Uniswap V3. Key Responsibilities: - Development of smart contracts for Uniswap V3 - Ensuring the security and efficiency of the code - Collaborate with the team to implement and deploy the smart contracts Required Expertise: - Proficiency in Solidity - Experience in developing smart contracts, preferably for Uniswap - Strong understanding of blockchain technology and smart contract security - Ability to work in a team environment Ideal Freelancer: I am ideally looking for a freelancer with an expert level of experience in Solidity. The ideal candidate would have a proven track record of developing secure and efficient smart contracts, particularly for Uniswap. A good understanding of...

...programs) - **Exchange Compatibility**: - The bot should be built to interact seamlessly with the Ethereum Network and Uniswap V3. Skills and Experience: A strong background in TypeScript is essential. Prior experience in developing bots for cryptocurrency, specifically Ethereum, would be a major advantage, as would knowledge of arbitrage principles. An understanding of smart contracts and Solidity, would be beneficial too, along with past experiences on Uniswap V3 integration. Also to note we have a functional Triangle Trading Bot that uses UniSwap V3 and works with larges amounts in the wallet so you should be able to easily restructure it to become a Front and Back running Mev Bot. We also have other code made for this project to make it easier for who ever takes this ...

...technical challenges and bottlenecks to ensure smooth operation of the mobile game. **Requirements:** - Strong experience in mobile development, with proficiency in iOS (Swift) and/or Android (Java/Kotlin) development. - Experience with or for interacting with the Ethereum blockchain. - Knowledge of blockchain development, particularly Ethereum and smart contract languages like Solidity, is a plus. - Familiarity with frontend technologies such as JavaScript, React Native, or Flutter. - Excellent communication skills and ability to work collaboratively in a fast-paced environment. - Passion for gaming and blockchain technology, with a desire to innovate in the mobile gaming industry. If you are passionate about mobile development, gaming, and blockchain technology, and want t...

I'm looking for seasoned blockchain developers, proficient in creating, testing and implementing smart contracts using Solidity. Here's what I need: - Token creation and distribution: I require a smart contract that can efficiently create and distribute tokens. - Current smart contract: The project requires the creation of a significant modern smart contract. Please choose your coding language as Solidity, but flexibility and the ability to work with other languages as the project evolves will be advantageous. The ideal candidate would have a strong command of Ethereum and the Solidity language. Proven experience in developing similar projects would be crucial.

I'm looking for a skilled developer to help me mint 5000 unique NFTs on the Solana blockchain. The NFTs will be of two types: artwork and collectibles. Key Requirements: - Mint 5000 unique NFTs on the Solana blockchain - Implement royalties management for all NFTs - Categorize NFTs into artwork and collectibles Ideal Skills and Experience: - Proficiency in Solidity and Solana smart contract development - Previous experience in NFT minting - Excellent understanding of royalties management in NFTs - Strong background in managing and minting large volumes of NFTs Please share your previous NFT projects and let me know if you have experience minting NFTs on Solana specifically. Looking forward to seeing your proposals.

...(dApp) for a DeFi gaming platform. The ideal candidate should be proficient in Smart contract development, Solidity programming, and Blockchain integration. Additionally, skills related to NFTs and art (Web3 artist) are highly desirable for this project. Key Responsibilities: - Develop and deploy smart contracts on the blockchain - Implement and integrate blockchain technology for the dApp - Design and integrate NFTs and other art-related aspects into the platform Functionalities Required: - User authentication - Token trading - Voting system Ideal Skills and Experience: - Previous experience in DeFi or gaming dApp development - Strong knowledge in Smart contract development, Solidity programming, and Blockchain integration - Familiarity with NFT marketplaces and...

I'm looking for a blockchain expert who can troubleshoot and rectify bugs in my existing smart contract deployed on Binance Smart Chain. Key Responsibilities: - Analyze t...Responsibilities: - Analyze the smart contract: Understand the functions and logic implemented. - Bug Identification: Identify the source and nature of bugs. - Bug Fixing: Modify code to eliminate bugs without affecting the contract's functionality. - Testing: Ensure the contract runs smoothly post-fix. Ideal freelancer: - Extensive experience with Binance Smart Chain and Smart Contracts. - Proficient in Solidity programming language. - Strong understanding of blockchain technology and decentralized applications. - Previous experience in debugging, testing, and deploying smart contracts would be a si...

I'm seeking a skilled Solidity developer to create a smart contract on the Ethereum platform for my project. - Proficient in Solidity: Having a deep understanding of the Solidity programming language is tremendously important for this project. Familiarity with Ethereum's layer solutions would be advantageous. - Experience with Ethereum: Having significant experience working with smart contracts on the Ethereum platform will be beneficial in ensuring smooth development and functionality implementation. - Types of Projects: We are aiming to develop a smart contract which requires extensive knowledge about writing, testing, and implementing contracts on Ethereum. Prior experience with similar projects is a plus. I look forward to seeing your bids and h...

I need a skilled Solidity developer to work on my existing smart contract. It has some functionality issues that need to be resolved, and it's also facing deployment errors. Your expertise in both troubleshooting and deployment is crucial for this project. Key Tasks: - Identify and fix the smart contract's functionality issues - Resolve any deployment errors that are preventing successful deployment While I didn't specify a particular optimization goal, I'm open to suggestions on how the contract could be optimized. This could include reducing gas fees, improving transaction speed, and enhancing security measures. Feel free to provide your own insights and recommendations in this area. Ideal Skills and Experience: - Proficient in Solidity programming la...

As a web development team, we have a solid foundation but lack in-depth knowledge and experience in web3/blockchain technology. We crave for a senior blockchain engineer to bolster us, especially on Ethereum and Bitcoin projects. • Skills and Experience: The ideal candidate will be proficient in Solidity and Ethereum Virtual Machine (EVM), and have extensive experience developing smart contracts, implementing token creation and integration, minting, and staking. • Responsibilities: The engineer will closely collaborate with our team and jump into our ongoing projects. Long term collaboration is desired. Expect to make significant contributions from sprint planning to deployment. We are excited about the potential advancements blockchain technology can bring to our pr...

...memecoin trading on the Raydium DEX. This bot should aim for a market cap increase via intensive buy and sell operations. Key Requirements: - Experience with Solana-based Dapps and developing trading bots. - Familiarity with Raydium DEX's API and interface. - Can implement a market-making strategy focused on aggressive buying and selling. Desired Skills and Experience: - Strong background in Solidity or other Web3 compatible languages. - Experience in working with DEXs, preferably Raydium. - Understanding of cryptocurrency market mechanics. - Ability to work under tight deadlines. This project will need continuous optimization and potential for ongoing work for the right candidate. Therefore, familiarity with the fast paced trading environment and adaptive nature of me...

I'm looking for a crypto developer to help me with a project. The details of this project are not yet decided, so creativity and flexibility are key. Ideal skills and experience for this job include: - Strong background in crypto development - Proficiency with various programming languages, including Python, JavaScript, and Solidity - Previous experience in wallet integration, smart contract development, and token creation is a plus Please, feel free to share your past work, experience, and any detailed project proposals you might have. I'm excited to see your proposals.

I'm looking for a skilled Solidity developer with experience in React, Node, and cross-chain deployment. The task involves deploying Solidity files on two blockchain networks. We need a Blockchain expert who is good at deploying sol contracts with very good hand on React/Node for some development and customization to existing platform. Scope of project includes 1- Deployment sol files 2- very basic Marketplace Development for user to Buy/sell/exchange ERC20 tokens 3- Walletless functionality where user dont have their wallets or dont want to use them plz come with good offers, right candidates to work on long-term Thanks Write: EXPERT at beginning of bid

...blockchain data. Landing Page: Design and develop a landing page to introduce our company and project. Include information about our tokenization efforts, project goals, and team members. Provide easy navigation to other sections of the website. Tokenization: Implement tokenization to create our native cryptocurrency. Enable users to transfer, receive, and manage their tokens securely. RPC Coin Transfer: Build an RPC-based system for transferring coins securely and efficiently. Implement functionalities for sending and receiving coins between addresses. Ensure the system is decentralized and resistant to tampering. Additional Requirements: Security: Implement robust security measures to protect user funds and prevent unauthorized access. User-Friendly Interface: Design an...

...staking. Key Features: 1. Decentralized Lending and Borrowing: Users should be able to lend and borrow digital assets securely. 2. Staking and Yield Farming: The platform should support staking for multiple tokens and offer yield farming opportunities to boost user profits. 3. Liquidity Pools: Allow users to pool their assets to earn transaction fees and rewards. Ideal Skills: - Proficiency in Solidity or Rust for smart contract development. - Familiarity with Solana, BSC, and Polygon blockchains. - Proven experience in DeFi platform building, particularly with yield farming, staking, and liquidity pool features. - Good understanding of DeFi concepts, blockchain security, and smart contract optimization. With these critical functionalities in place, our platform will stand out...

I need help in editing and testing my Solidity code of a new smart contract

I'm in need of a skilled web3 and blockchain developer for my project. Specifically, I need development web3 and smart contract developed with solidity for a simple marketplace using the Polygon blockchain. Key duties and deliverables include: - Blockchain integration (provider node - IPFS if needed or not) into already built front-end -integrate wallet for user authentication - Entrust the development of a smart contract for a simple marketplace application - Ensure the smart contract supports purchasing and selling of products I anticipate this contract will provide an excellent opportunity to showcase your strong skills in smart contract, web3, and especially Polygon network development. Experience in working with marketplaces or similar projects would be a plus. Kno...

I'm looking for a knowledgeable and experienced Smart Contract Developer Trainer who can teach me the ins and outs of Ethereum, Solidity, and the entire smart contract development process. Key Training Topics: - Introduction to Smart Contracts - Solidity Programming Language - Deployment and Testing of Smart Contracts Candidate Profile: - Strong expertise in Ethereum and Solidity - Proven experience in smart contract development - Ability to explain complex concepts in a simple and understandable manner - Prior experience in training or tutoring is a plus Your role will be to guide me through the creation, deployment, and testing of smart contracts on the Ethereum platform. I already have some experience with programming and smart contracts, so I'm looking...

I'm looking for an experienced smart contract developer ...money. - **Burnable**: I need the token to be burnable, meaning that tokens can be destroyed or removed from circulation. - **Mintable**: The token should be mintable, allowing new tokens to be created. - **Pausable**: I also need the ability to pause the token contract in case of emergencies or necessary updates. The ideal candidate for this job should have a deep understanding of Ethereum and Solidity programming. Previous experience in creating token smart contracts with burnable, mintable, and pausable features would be highly preferred. The developer should be able to optimize the contract for security and efficiency, keeping gas costs low to ensure the best user experience while maintaining the integrity of the ...

As a savvy enthusiast in the blockchain space, I need a developer with a deep understanding of Ethereum blockchain to develop a smart contract for me. My end goal with this project is to create a token with fixed supply. Ideal Skills: • Proficient in Solidity • Proficient in Ethereum blockchain • Understands tokenomics, particularly fixed supply • Knowledgeable about smart contract development

As the project lead, I'm urgently requiring an experienced Full Stack Engineer with substantial knowledge & proficiency in Blockchain technology. This is an urgent hire, and I need the project to be completed within the next month. Key Qualifications: • Solid technical understanding of Solidity, JavaScript, HTML, CSS, TypeScript. • In-depth experience using Truffle, React, MERN, Hardhat. • Prior experience with Blockchain, Ethereum, Smart Contract, ICO, IDO, NFT, DEX, DeFi is highly desirable. • Strong problem-solving skills, with an ability to hustle and deliver under timelines. Please ensure you're comfortable with the above languages and frameworks before applying. Looking forward to meet qualified enthusiasts swiftly!

As an enthusiast in the world of cryptocurrencies, I need a proficient Solidity developer with a good grasp of blockchain technology to assist me in creating a smart-contract for token creation specifically on the Ethereum platform. Your duties will include: - Designing and deploying a smart-contract in Solidity language. - Ensuring the smart-contract is functional for token creation. - Implementing a wide-ranging bot defense strategy to protect the smart-contract from bots. Skills & Experience: - Advanced knowledge of Solidity and Ethereum blockchain platform. - Proven track record in successful smart-contract deployments. - Experience in crafting and deploying comprehensive bot defense strategies. - A solid understanding of token creation process. The ide...

Requirements: 1. Need a basic ERC20 token that should be created using openzepplin. 2. No additional functionality needed. Skills required: Solidity, Nodejs

I am seeking a skilled Solana / Rust developer with exp...I need a robust raffle platform that includes a random winner selection system, a ticket purchasing system, and a mechanism for distributing prizes. - You will be working with my specific design in mind, so attention to detail and the ability to implement a pre-existing design is essential. Ideal Skills and Experience: - Proficient in Solidity development - Previous experience with crypto projects - Experience with developing raffle or gambling projects is a plus - Strong attention to detail and the ability to implement a specific design If you are a developer with a good understanding of Solidity, crypto projects, and raffle systems, I would love to hear from you. Please provide examples o...

Who We Are? We are a building a Defi protocol that will offer trading strategies on the blockchain which no other protocol is offering until today, hence we will have the first-mo...involve: - Front-end Development: Build and optimize interactive, user-friendly front-end interfaces using React.js, TypeScript, and Material-UI. - State Management: Implement robust state management solutions using Redux and React-Redux. - Back-end Interaction: Develop features that interact seamlessly with APIs, including those interfacing with smart contracts using Solidity and ethers.js. - UX/UI Design: Assist in the design process with a good grasp of UX/UI principles; experience with Figma or similar tools is desirable. - Deployment: Utilize Vercel for deploying and managing applicat...

I'm in need of a skilled programmer who can help me develop a new cryptocurrency using Solidity. This will also include creating a presale website page tied to my wallet. Key requirements include: - Developing a cryptocurrency using Solidity - Creating a presale website page with the following features: - Live countdown timer - Real-time updates on funds raised - Integration with my wallet Additionally, I will provide a demo for the web designer to follow for the presale website page ( in attachement ).. Ideal skills: - Proficiency in Solidity - Experience in developing cryptocurrencies - UI/UX Design - Integration with wallets If you're interested in working on this project, kindly let me know of your experience and availability. I n...

I'm in need of a skilled web3 and blockchain developer for my project. Specifically, I need development web3 and smart contract developed with solidity for a simple marketplace using the Polygon blockchain. Key duties and deliverables include: - Blockchain integration (provider node - IPFS if needed or not) into already built front-end -integrate wallet for user authentication - Entrust the development of a smart contract for a simple marketplace application - Ensure the smart contract supports purchasing and selling of products I anticipate this contract will provide an excellent opportunity to showcase your strong skills in smart contract, web3, and especially Polygon network development. Experience in working with marketplaces or similar projects would be a plus. Kno...

...Position: Blockchain Developer Type: Full-time or Part-time for contract Location: 100% Remote Salary: Competitive, commensurate with experience, $5k ~ $ 8k Requirements: -Proficiency in Smart Contract development -Proficient in Solidity, as the smart contract will be developed in this language -Strong English communication skills -Bachelor's degree in a relevant field -Experience with web development technologies -Knowledge of modern web application design and best practices -Web3 & Marketplace development experience Key Responsibilities: Smart Contract: Design, develop, and deploy smart contracts on the blockchain platform. Code Implementation: Write clean, maintainable, and efficient code. Collaboration: Collaborate with cross-functional teams for effe...

We want a Blockchain expert who is good at deploying sol contracts with very good hand on React/Node for some development and customization to existing platform. Scope of project includes 1- Deployment 2- very basic Marketplace Development for user to Buy/sell/exchange ERC20 tokens 3- Walletless functionality where user dont have their wallets or dont want to use them plz come with good offers, right candidates to work on long-term Thanks Write: EXPERT at beginning of bid

I'...it in 1 day Key Requirements: - Develop an ERC20 smart contract with a vesting feature - Implement a frontend interface - Display contract details including total balance, contract address, contract creator, and creation date, transactions - Enable users to sign in to view these details Ideal Skills: - Solid understanding of smart contract development on the Ethereum network - Proficiency in Solidity programming language - Experience in developing frontend interfaces - Understanding of token vesting mechanisms This project will require someone with a good understanding of blockchain technology and smart contract development, as well as proficiency in frontend development using React. Please provide examples of previous work and experience in similar projects when submi...

I am seeking a skilled Solidity developer with experience in creating crypto projects to help me build a raffle platform. Key Project Details: - I need a robust raffle platform that includes a random winner selection system, a ticket purchasing system, and a mechanism for distributing prizes. - You will be working with my specific design in mind, so attention to detail and the ability to implement a pre-existing design is essential. Ideal Skills and Experience: - Proficient in Solidity development - Previous experience with crypto projects - Experience with developing raffle or gambling projects is a plus - Strong attention to detail and the ability to implement a specific design If you are a developer with a good understanding of Solidity...

Hi there! I'm in search of a part-time in-house developer to take on a key role in our up-and-coming cryptocurrency project. Your primary focus will be to construct an engaging E-commerce website once we launch. The website will primarily need to have: - A well-integrated shopping cart and checkout system - An efficient real-time shipping calculation feature Though blockchain or Solidity knowledge isn't a requirement, a good understanding of the dynamics involved in creating user-friendly and high-performing web applications would be ideal for this role. Your expertise in coding and your ability to ensure a seamless journey for our users from browsing products to checkout will be critical to your success in this role. If you're a versatile developer, dedicated to c...

...advisor of issued coins after the completion of the ICO as a success fee. - **ERC-20 Token Creation**: Expertise in generating a secure and functional ERC-20 token, aligned with current standards but also allowing room for custom features down the line. - **Implementation Speed**: Given the urgent nature, I need someone who can prioritize and work efficiently to meet the ASAP timeline. - **Solidity Proficiency**: Knowledge in writing, deploying, and verifying Smart Contracts on Ethereum's network. **Preferred Experience**: - Experience with ICOs or token launches - White Paper writing - Familiarity with Ethereum blockchain programming - Understanding of smart contracts and trending tech - ICO Website Development - Low budget marketing campaigns While no additional fun...

We're dividing assets into fractions. We have .sol files related to smart contracts (ERC20 on Ethereum with a bridge on Gnosis). We're in search of an expert who can review these files and determine their functionality for deployment. Should this collaboration proceed smoothly, we're open to establishing a long-term partnership for technical support.

Hello; I need to generate a new set of websites (.EUs), integrated/generated them with an already active set with a lot of basic content (basic analysis, from set .ITs); Objective: digital sale of GREEN RIGHTS, starting in the EU and BRICS area; with option to generate some apps to upload NFT/DeFi (Solidity/ERC721) to specifics cryptocurrency markets; I think of a good system and its subsequent easy management; a lot of material needs to be reorganized, offered in English, with a sober and professional style, similar on every website, with the option of being available in every language (Wordpress); the basic contents and plan in matrix at the bottom in (first column general info, each others column basic contents on specific websites/patent); ...not need easy migration (traslati...

copy bot for erc network. customized with solidity and python codes

I'm on the lookout for skilled blockchain backend developers with proficiency in Python, JavaScript, and Solidity. Your understanding of Ethereum and experience in blockchain will prove to be incredibly valuable. The key features I need you to support in the blockchain backend are smart contracts and the development of decentralized applications (DApps). Ideal Skills and Experience: - Proficient in Python, JavaScript, and Solidity - Experience with Ethereum - Prior work in blockchain development - Knowledge of smart contracts - Proven experience in DApp development Your ability to deliver efficient and secure blockchain backend solutions, that facilitate the execution of smart contracts and the development of DApps, will be crucial for the success of this project.

I'm looking for a developer with in-depth experience in creating smart contracts on...ERC20 tokens. The contract should allow for the distribution of ERC20 tokens to multiple recipients in a single transaction. - Implement pause functionality as a security feature. This is crucial to protect the contract from any potential vulnerabilities or attacks. - We would like to be able to interact with the contract if possible (on etherscan) Ideal skills and experience: - Proficiency in Solidity, the programming language used for Ethereum smart contracts. - Prior experience in developing multisend contracts and incorporating pause functionality. - Knowledge of best practices for smart contract security. - Ability to deliver a secure and efficient smart contract that meets the specifie...

I am in need of a proficient developer to create a web application, specifically a sniper app, for the TON Network Blockchain. I am open to the usage of JavaScript, Solidity, and nodejs for this project. I didn't specify the exact features, however, if you have experience with crafting applications of a similar nature, I'd prefer to see your take on it. I have an immediate need for this project, hence it is important that the work is completed as soon as possible. - Key Skills: JavaScript, Nodejs, Solidity - Experience: Previous work on sniper apps or similar projects, familiarity with the TON network blockchain would be highly advantageous.

We're dividing assets into fractions. We have .sol files related to smart contracts (ERC20 on Ethereum with a bridge on Gnosis). We're in search of an expert who can review these files and determine their functionality for deployment. Should this collaboration proceed smoothly, we're open to establishing a long-term partnership for technical support.

I am seeking a skilled developer fluent in Solidity to develop a web3 smart contract using the Base Sepolia Test Net. Your task will involve: - Developing web3 integration - Designing the simplest UI possible Ideal candidates should have previous experience with Ethereum blockchain technology, Solidity programming distinct to the Base Sepolia Test Net, and the creation of adaptable user interfaces. A background in web3 integration is highly desired. Please provide samples of smart contracts you've developed or relevant project references in your bid.

We're dividing assets into fractions. We have .sol files related to smart contracts (ERC20 on Ethereum with a bridge on Gnosis). We're in search of an expert who can review these files and determine their functionality for deployment. Should this collaboration proceed smoothly, we're open to establishing a long-term partnership for technical support.

Looking for someone who can code TON smart contracts. We have a DeFi platform which has integrations to ETH, BNB & Blast chain already. We want to add TON as the 4th chain. We also have similar logic contracts written in Solidity for reference. As TON is non-evm compatible, the dev needs to write contracts to integrate the chain into the platform. Some resources for research :-

Hello, I am currently looking for an excellent developer who is well versed in at least any one of the following fields: Java, C#, Golang, Rust, JavaScript, Python, solidity, web3, blockchain, web frontend and backend. Of course, he must be prepared to work with us long term, more than 40 hours per week. You must be geographically located in Europe or the Americas, be able to work at least 6 hours EST day time, and possess written/verbal English skills at an advanced level or higher. In order to select excellent talents, you will need to anticipate a 30-60 minute technical interview with a project manager in our team. Dont worry. We need at least 3 developers. Expected salary range is $15-$25/hr depends on experience. Please feel free to send us applications embroidered with yo...

I need a proficient Solidity and Web3 developer to help build a smart contract on the Ethereum network. The primary functionality of the contract is to facilitate fund transfers and sharing. Ideal Skills and Experience: - Solid experience in Ethereum smart contract development - Expertise in Solidity and libraries - Familiarity with test networks I need to create a smart contract and wallet connection using metamask. Here's an example; On this link, they only can donate using a credit card or debit card. I want to pay with eth test network (using metamask) and the smart-contract is; Person A needs 2000ETH for their project with a deadline of 30 days and share the profit 10% after 10 days of the project to reach the goal