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    프로젝트 진행 단계
    2,000 solidity constructor 찾은 프로젝트

    ...engaging user interfaces. Optimize application performance for large-scale users with minimal latency. Ensure compliance with gaming regulations and blockchain standards. Provide technical leadership and mentor junior developers. Required Skills and Experience: 10+ years in web development with a strong focus on blockchain/Web3 technologies. Proven experience in smart contract development (e.g., Solidity). Hands-on expertise with networks like Ethereum, BSC, Polygon, or Solana. Proficiency in JavaScript, TypeScript, React.js, and Node.js. Deep understanding of casino, lottery, and gaming mechanics. Familiarity with crypto wallet integration (e.g., Metamask). Strong analytical and problem-solving skills. Preferred Qualifications: Experience with GameFi and NFT standards. Knowled...

    $259 Average bid
    $259 (평균 입찰가)
    28 건의 입찰

    ...engaging user interfaces. Optimize application performance for large-scale users with minimal latency. Ensure compliance with gaming regulations and blockchain standards. Provide technical leadership and mentor junior developers. Required Skills and Experience: 10+ years in web development with a strong focus on blockchain/Web3 technologies. Proven experience in smart contract development (e.g., Solidity). Hands-on expertise with networks like Ethereum, BSC, Polygon, or Solana. Proficiency in JavaScript, TypeScript, React.js, and Node.js. Deep understanding of casino, lottery, and gaming mechanics. Familiarity with crypto wallet integration (e.g., Metamask). Strong analytical and problem-solving skills. Preferred Qualifications: Experience with GameFi and NFT standards. Knowled...

    $405 Average bid
    $405 (평균 입찰가)
    32 건의 입찰

    ...communication between the front-end and blockchain APIs. Tech Stack: Front-End: React.js, Vue.js Styling: Tailwind CSS, Bootstrap, or custom CSS Blockchain: Ethereum, Binance Smart Chain, Solidity (smart contracts) APIs: RESTful, Required Skills: Proficiency in HTML5, CSS3, JavaScript (ES6+), and front-end frameworks like React, Vue, or Angular. Familiarity with , , and basic blockchain concepts (transactions, wallets, smart contracts). Experience with responsive design and API integration. Preferred Skills: Experience with Ethereum or Binance Smart Chain. Familiarity with Solidity and decentralized applications (dApps). Background in the rental or property management industries. Benefits: Fully remote work with flexible hours. Opportunities for growth based on perfor...

    $8 - $15 / hr
    봉인형
    $8 - $15 / hr
    52 건의 입찰

    I'm in need of a professional well-versed in Solidity and familiar with encryption algorithms. The main focus of this project pertains to using an encryption algorithm for identity verification purposes within a smart contract or DApp. Ideal Skills and Experience: - Proficient in Solidity with a portfolio of smart contract or DApp development - Expertise in encryption algorithms - Experience in implementing identity verification systems - Knowledge of secure coding practices and data protection measures - Strong problem-solving skills and attention to detail

    $1234 Average bid
    $1234 (평균 입찰가)
    45 건의 입찰

    ...ML alerts. Support for cross-platform trading of both common and newer tokens. Seamless buy/sell/exchange functionality with secure API integration. Fee structure for platform transactions to establish revenue. Skills Required: Frontend Development: React, Angular, or Vue.js. Backend Development: Node.js, Python (Django/Flask), or Ruby on Rails. Blockchain Expertise: Smart contract development (Solidity, Rust, etc.). Experience with Ethereum, Binance Smart Chain, or similar. TradingView Integration: Strong understanding of Pine Script and TradingView APIs. Ability to migrate indicators into custom platform charts. API Integration: MoonPay, DEX/CEX, TradingView, and wallet APIs. Database Management: PostgreSQL, MongoDB, or MySQL. Security Knowledge: Best practices to ensure platfo...

    $10 / hr Average bid
    $10 / hr (평균 입찰가)
    52 건의 입찰

    I'm looking for an experienced blockchain developer to create and deploy a smart contract on the Ethereum mainnet for a new ERC-20 token. Key Requirements: - The token must be mintable and burnable. - Expertise in creating secure and efficient smart contracts. Ideal Skills: - Proficient in Solidity and Ethereum blockchain. - Previous experience with ERC-20 token creation. - Understanding of tokenomics and security best practices.

    $170 Average bid
    $170 (평균 입찰가)
    46 건의 입찰

    ...Build a responsive website with wallet integration (MetaMask, WalletConnect). Features: Minting functionality, live mint tracker, and transaction confirmation. User-friendly UI/UX for NFT previews and post-mint attributes display. Community Features Countdown timer for the mint launch. Showcase of donation impact to rescue shelters. Skills and Technologies Required Blockchain Development: Solidity, Ethereum, Polygon, , or Ethers.js. Web Development: React.js, , JavaScript, HTML, CSS. Backend Development: Node.js, Express.js. 3D Animation Integration: GLB/GLTF file handling, rendering for NFTs. Decentralized Storage: IPFS, Pinata, or Filecoin. Testing Frameworks: Hardhat, Truffle, or Remix for smart contracts. Deliverables Smart contract deployed and tested on the bloc...

    $4320 Average bid
    $4320 (평균 입찰가)
    48 건의 입찰

    ...professionalize and strengthen their marketing, sales, and internal management areas. • Public sector entities requiring strategic communication and process modernization. GEOGRAPHICAL TERRITORY: Initial operations in the Dominican Republic, with plans to expand services to other Caribbean and Latin American markets in the medium term. BRAND PERSONALITY: • Professional and Reliable: Convey solidity, rigor, and experience. • Dynamic and Innovative: Demonstrate adaptability, agility, and a forward-thinking, continuous improvement mindset. • Approachable and Collaborative: Highlight empathy, active listening, and a focus on building long-term client relationships. STRATEGIC COMMUNICATION PILLARS: Comprehensiveness: Holistic solutions that address...

    $200 Average bid
    파워형 상금 보장형 봉인형 최상위형
    $200
    135 건의 응모작

    I'm looking for a skilled and experienced programmer to improve a Bothfather bot The script should be written in Javascript and must have the ability to analyze data in Dexscreener, Dextools, and CoinmarketCap. Experience in DEX basis and crypto APIs is mandatory. Github repo: Github issues

    $195 Average bid
    $195 (평균 입찰가)
    37 건의 입찰

    ...manipulative trades. - Limit purchases per wallet for the first 24 hours to discourage hoarding and promote a wider initial distribution. - Implement anti-bot/anti-sniper measures to prevent automated trading and protect against market manipulation. - Set a 10% allocation for marketing purposes to ensure a strong presence in promotional activities. Ideal Skills and Experience: - Proficiency in Solidity and the Solana blockchain. - Experience in creating custom tokens with anti-whale and anti-sniper features. - Familiarity with implementing anti-bot measures and limiting purchases per transaction. - Previous involvement in token marketing and allocation strategies. Your expertise in these areas will be instrumental in ensuring a successful and fair launch for this token. Loo...

    $750 - $1500
    파워형 봉인형 NDA (비밀 유지 계약서)
    $750 - $1500
    8 건의 입찰

    ...Contracts: Development of multiple smart contracts to enable core token functionalities (details to be provided upon selection). Website Development: Creation of a user-friendly, responsive website connected to the blockchain. The website will allow for tracking token activity and integrating specific features related to its ecosystem. Requirements: Proficiency in smart contract development (Solidity) on Polygon or EVM-compatible chains. Experience in developing and integrating websites with blockchain functionalities. Ability to ensure security, scalability, and clean code practices. Nice-to-Have: Prior experience with auction-based tokens or NFT-related projects. If you're interested, please provide: Your portfolio or relevant experience. An estimated timeline an...

    $1305 Average bid
    $1305 (평균 입찰가)
    19 건의 입찰

    ...ecosystem and share insights with the team. Participate in code reviews and contribute to the overall improvement of the codebase. Proactively mentor others to develop in their areas of expertise and provide guidance on best practices and industry standards. You should apply if you have 5+ years of experience in software development. Knowledgeable about Ethereum and EVM Experience with Go and Solidity. Experience with AWS services such as Cloudwatch, DynamoDB, ECS. Experience with Docker, ECS and Terraform Experience with OP Stack and Arbitrum works is preferred Desire to work with Rust. Strong desire to further your education about Ethereum and contribute to the blockchain space. Prior experience working remotely: strong personal organizational skills, a love for self-time mana...

    $163 / hr Average bid
    $163 / hr (평균 입찰가)
    14 건의 입찰

    ...on: Cannot resolve reference to bean 'jpa.UserRepository.fragments#0' while setting bean property 'repositoryFragments' Caused by: : Error creating bean with name 'jpa.UserRepository.fragments#0': Error creating bean with name 'userRepositoryCustomImplFragment': Cannot resolve reference to bean 'userRepositoryCustomImpl' while setting constructor argument Caused by: :: Error creating bean with name 'userRepositoryCustomImpl': Injection of persistence dependencies failed Caused by: : Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration

    $86 Average bid
    긴급형
    $86 (평균 입찰가)
    6 건의 입찰

    보다 자세한 내용을 확인하시려면, 회원 가입 또는 로그인 절차가 필요합니다.

    긴급형 NDA (비밀 유지 계약서)

    **Resumen del Proyecto:** Creación de una plataforma web en WordPress (usando el constructor Divi) para conectar usuarios con profesionales especializados en servicios para el hogar y empresas. Este proyecto busca mejorar la experiencia de usuario, optimizar la funcionalidad y superar a la competencia (ej. ). **Especificaciones del Proyecto:** 1. **Nombre y Branding:** - **Nombre del proyecto:** (Por definir, algunas sugerencias: "Manos Expertas", "ProConnect", "Tu Servicio Fácil"). - **Logo:** Diseño de un logotipo moderno, minimalista y profesional que transmita confianza y eficiencia. - **Paleta de colores:** Tonos de colores para generar sensación de seguridad y profesionalismo. - **Tipografía:** Fue...

    $468 Average bid
    $468 (평균 입찰가)
    75 건의 입찰

    ...can assist with the development and coding of smart contracts for an Ethereum-based decentralized exchange (DEX) platform. The ideal candidate should be proficient in Solidity, as this is the preferred programming language for our smart contract development. Key Responsibilities: - Collaborate in the design and architecture of smart contracts - Lead the development and coding of the smart contracts - Ensure the smart contracts are efficient, secure and meet the requirements for the DEX platform Ideal Skills and Experience: - Extensive experience in smart contract development on the Ethereum blockchain - Proficient in Solidity - Previous experience working on decentralized exchange platforms - Strong understanding of blockchain technology and its applications - Excellent ...

    $218 Average bid
    $218 (평균 입찰가)
    25 건의 입찰

    ...contracts on the Ethereum mainnet or testnet. 4. Enable secure, transparent, and decentralized trading of digital assets on the platform. 5. Implement Web3 functionality to enable users to interact with the platform using Ethereum wallets. ? Functional Requirements: 1. Smart Contract Development: - Design and develop new smart contracts for trading logic, order matching, and settlement using Solidity programming language. - Implement smart contracts to handle the following functions: 4. Integrate with third-party APIs for real-time market data and price feeds. + Trading: Create, cancel, and execute trades. + Order matching: Match buy and sell orders. + Settlement: Settle trades and update user balances. - Ensure smart contracts are secure, efficient, and gas-optimized....

    $52 / hr Average bid
    $52 / hr (평균 입찰가)
    24 건의 입찰

    ...ERC-721 (NFT) token - Ensure the smart contract is efficient, secure, and scalable - Collaborate with me to understand and fulfill project requirements Ideal Skills: - Proficient in Fullstack Blockchain development - Extensive experience with Smart contract development on Ethereum - Knowledge of creating ERC-721 (NFT) token - Ability to communicate effectively in English - Strong proficiency in Solidity programming language - Experience with for Ethereum blockchain interaction - Familiarity with Remix IDE for smart contract development and testing Please note that I am open to working with new freelancers who can demonstrate their skills and commitment to delivering high-quality work. The developer should also create a basic HTML/CSS frontend to interact with the smart contr...

    $21 / hr Average bid
    $21 / hr (평균 입찰가)
    39 건의 입찰

    ...PancakeSwap, ensuring seamless interaction for buy and sell orders. Additional functionality will include tracking ROI, win/loss ratios, and providing real-time alerts for critical events. The project will involve planning, core development, rigorous testing, and deployment on a scalable cloud platform like AWS, GCP, or Azure. Applicants must have expertise in blockchain development, specifically in Solidity, , or , and a strong understanding of tokenomics, liquidity pools, and DeFi protocols. Proficiency in Python is required for implementing trading logic, data pipelines, and AI/ML models. Familiarity with TensorFlow or PyTorch is necessary for developing sentiment analysis and predictive algorithms. Applicants should also have experience in deploying applications on cloud pla...

    $71132 Average bid
    $71132 (평균 입찰가)
    48 건의 입찰

    Seeking a seasoned developer to create a Solana-exclusive copy trade and f...- User-customizable trading strategies. - Copy trading on - Add automated stop-loss functionality to manage risks. - Support for copying trades from multiple wallets. - Develop a custom notification system for trade alerts. - Cross mirror trading preventions - Ideal Skills & Experience: - Proven track record in developing similar bots. - Proficiency in Python, C#, Node.js, Rust, and Solidity. - Familiarity with high-frequency trading principles. - Experience in building user-customizable trading strategies. - Experience with copy trading on pump.fun. Please include verifiable evidence of your previous bot development (e.g., videos, transaction records) and your estimated project cost when you conta...

    $3079 Average bid
    $3079 (평균 입찰가)
    66 건의 입찰

    I'm in need of a skilled blockchain developer to assist me with deploying a smart contract on the Ethereum network. The primary purpose of this contract is for token creation, specifically adhering to the ERC-20 standard. Ideal skills include: - Proficiency in Ethereum and ERC-20 standards - Experience with smart contract development and deployment - Knowledge of Solidity programming language - Understanding of blockchain technology and its applications Please provide examples of previous similar projects you've completed.

    $189 Average bid
    $189 (평균 입찰가)
    81 건의 입찰

    ...and understanding of DeFi protocols. Goal: Create a Flush LINK token for rapid, secure, and cross-chain transfers. Core Features: Dynamic token supply Lightning-fast transactions SHA-256 encryption Real-time verification Additional Requirements: Transaction tracking User-friendly interface FANTOM blockchain priority Smart Contract Development: Create LINK FANTOM smart contracts in Solidity. Implement core features and ensure blockchain standards compliance. Blockchain Integration: Integrate smart contracts With Fantom blockchains. Set up nodes and configure network interactions. Transaction Tracking System: Develop a backend system to track transactions (optional). Use blockchain APIs to retrieve transaction data. Provide a user interface for transaction his...

    $400 Average bid
    $400 (평균 입찰가)
    20 건의 입찰

    I am looking for an experienced blockchain developer to fork an Ethereum-based coin with specific Proof of Stake (PoS) features. The project involves: 1. Initial Minting: The first step is to mint 99,999,999,999 coins. 2. Staking: Followi...coins. 2. Staking: Following the minting, the coins should start staking. 3. Transaction Fees: The system should implement a flat fee per transaction. 4. Coin Minting: Every transaction should mint one coin. 5. Coin Generation: Every 30 seconds or 1 minute, new coins should be generated and distributed as staking rewards to holders. The ideal freelancer for this project should be proficient in Solidity and have extensive experience in developing Ethereum-based smart contracts. Please provide examples of similar projects you've completed in...

    $108 Average bid
    $108 (평균 입찰가)
    8 건의 입찰

    ...contracts on Ethereum or similar platforms 9 . Skills Required: - Proficiency in Solidity for smart contract development. - Knowledge of web3 technologies and libraries such as or - Understanding of blockchain security practices. - Familiarity with layer-2 scaling solutions. - Experience with front-end development for creating user interfaces. - Project Management: Ability to manage the project timeline, milestones, and communication effectively, ensuring timely delivery. Regulatory Knowledge: Basic understanding of regulatory requirements and compliance in major jurisdictions to implement necessary features in the smart contract I am looking for someone knowledgeable on how to code with Solidity, who can fine-tune the white paper, and provide specific guidance aroun...

    $628 Average bid
    $628 (평균 입찰가)
    89 건의 입찰

    Tenemos una página web en Word press con un constructor xion y requerimos migrarlo al constructor elementor

    $447 Average bid
    $447 (평균 입찰가)
    57 건의 입찰

    I need an experienced blockchain developer who can create a mobile (iOS/Android) decentralized application (DApp) on Ethereum. The app should have wallet integration, token exchange capabilities and DeFi functionalit...Proven experience in DApp development, particularly on Ethereum - Proficiency in mobile app development for both iOS and Android - Knowledge and experience in integrating crypto wallets into mobile apps - Understanding of token exchange mechanics and DeFi protocols - Ability to create a user-friendly and secure mobile DApp - Strong expertise in writing and auditing Ethereum smart contracts using Solidity. I am looking for a professional who can deliver a high-quality, functional and secure mobile DApp. If you have the required skills and experience, I look forward to...

    $234 / hr Average bid
    $234 / hr (평균 입찰가)
    32 건의 입찰

    ...Challenges: 1. Configuring Exclusion Rules: I need help setting the correct exclusion rules in to ensure the encrypted code maintains NinjaTrader functionality. 2. Balancing Encryption Levels: I require assistance in determining appropriate encryption levels that safeguard my strategy code while still ensuring compatibility with NinjaTrader. 3. Resolving Errors: I frequently encounter constructor-related errors post-encryption that need troubleshooting. Ideal Candidate Skills: - Extensive experience with NinjaTrader 8 strategy development. - Proficient in code protection. - Knowledgeable in .NET assembly encryption best practices. Please include your relevant experience with similar projects and your approach to resolving these encryption compatibility issues. Thank you.

    $140 Average bid
    $140 (평균 입찰가)
    12 건의 입찰

    We are seeking a talented and resourceful Full-Stack Developer who can handle multiple aspects of platform development. As a key member of our team, you will work closely with the founder to build and launch the first version of the platform, including backend integration, basic frontend design, and blockchain interaction. This is a freelance/part-time role with flexible hours, perfect for someone who thrives in a startup environment and is comfortable wearing multiple hats. ---- Responsibilities: Backend Development: - Build and maintain a robust backend system using Node.js, Python, or similar frameworks. - Integrate APIs from trading platforms like Binance Futures, Bybit, or dYdX. - Set up and manage a secure database for user data and trading activity (e.g., PostgreSQL, MongoDB). F...

    $1698 Average bid
    $1698 (평균 입찰가)
    13 건의 입찰

    Se trata de una PWA turistica especialmente de contenidos desarrollada sin codigos en el constructor de Apps conocido como GoodBarber. En una primera etapa incluiria los 25 atractivos mas iconicos del patrimonio arquitectonico y monumental de la ciudad de Paris, Francia. La plataforma incuye todas las herramientas necesarias para incluir mapas de sectores de una ciudad para establecer la exacta ubicacion de cada sitio y sus vias de acceso. La plataforma GoodBarber dispone de su propia AI para los textos. Cuento con mas de 40 acuarelas de artista que me interesa destacar en la PWA porque las ofrezco para su venta digital en mi tienda en Shopify. Estoy disponible para cualquier pregunta sobre este proyecto.

    $11 / hr Average bid
    $11 / hr (평균 입찰가)
    18 건의 입찰

    ...Facilitate the hosting of the builder on subdomains for two distinct websites, both of which already have completed front-ends that you will be responsible to integrate with the backends. You can see the front end of the website builder now at 1site.web3onboarding.com. Aside from a different logo, it's the same front-end for the other site as well. I have all source code, smart contracts, and solidity files. Contracts currently deployed on Polygon. Address and rectify issues with wallet APIs on one of the websites, as the current 'connect wallet' function is not operational. Additionally, a malfunctioning coupon feature needs to be repaired. I am equipped with node.js with an active RPC endpoint, Python, Gitbash, Powershell, Github Co-pilot, Chatgpt co-pilot, ...

    $750 - $1500
    파워형 긴급형 봉인형 NDA (비밀 유지 계약서)
    $750 - $1500
    22 건의 입찰

    I have a problem with a smart contract in the Solidity language. I need someone to solve this problem for me in exchange for a small fee because the code is ready. I just need to solve the problem.

    $20 Average bid
    $20 (평균 입찰가)
    1 건의 입찰

    ...completed incorporation and obtained an EIN, we are looking to assemble a core team of experts to drive our project to the next level. We are in immediate need of talented professionals to help implement, launch, and grow this project, with key roles available for: 1. Chief Technology Officer (CTO): Expertise in blockchain architecture, smart contract development, and payment systems. Proficient in Solidity, Ethereum, and decentralized application (dApp) development. Ability to lead the development of our decentralized payment gateway and ensure multi-asset support (crypto and fiat). 2. Marketing Lead: Proven experience in crypto growth hacking, community building, and digital marketing. Ability to create marketing campaigns and strategies that drive user acquisition and engagem...

    $835 Average bid
    $835 (평균 입찰가)
    9 건의 입찰

    ...exemplu cod) ● Funcții și parametri o Ce este o funcție? (definiție, exemplu cod de definire funcție, exemplu cod de apelare funcție) o Ce este un parametru? (definiție, exemplu cod de definire funcție cu parametri, exemplu cod de folosire funcție cu parametri) ● Clase și obiecte o Ce este o clasă? Ce este un obiect? (definiții, exemplu cod pentru fiecare) ● Constructorul unei clase o Ce este un constructor? (definiție, exemplu cod) ● Cei 4 piloni OOP o Care sunt cei 4 piloni OOP? (definiție, exemplu cod pentru fiecare, particularități) Cerințe intrare în examenul final Pentru a intra în examen, trebuie respectate TOATE cerințele de mai jos: PARTEA I ● Răspunsuri corecte și complete la toate întrebările ● Justificarea răspunsurilor la întrebări prin exem...

    $260 Average bid
    긴급형
    $260 (평균 입찰가)
    1 건의 입찰

    I'm seeking a skilled blockchain developer to create a smart contract on the Ethereum platform. The primary purpose of this...- Flash token functionality: The contract should allow for the creation of tokens that can be transferred immediately or 'flashed'. - Hash time lock: This feature is critical for ensuring that transactions are only executed within a certain timeframe. - Validity rate control: The smart contract should be able to manage and control the validity rate of the tokens. Ideal Skills: - Proficient in Solidity and other relevant programming languages. - Extensive experience with Ethereum blockchain and smart contract development. - Previous work on token creation, specifically USDT flash tokens, is highly desirable. Please provide examples of your p...

    $7 / hr Average bid
    $7 / hr (평균 입찰가)
    9 건의 입찰

    ...Focusing on front-running and sandwich attack aspects of MEV. - Enable value extraction from transactions: The mev should be able to identify and extract value from transactions on the Ethereum network. - Implement effective monitoring of the mempool: The mev should systematically watch the mempool for profitable transactions to capitalize on. Required Skills: - Proficient and experienced in Solidity, JavaScript, and Python. - Strong understanding of Ethereum blockchains and MEV. - Capable of creating an efficient and sophisticated MEV software. - Provide advice on implementing mev on suitable RPC nodes. This project requires a developer who is knowledgeable and skilled in the aforementioned programming languages. The ideal candidate should have a proven track record in creati...

    $36 / hr Average bid
    $36 / hr (평균 입찰가)
    58 건의 입찰

    ...project, developed using React, Node.js, and Solidity, is set to redefine the gaming industry. We seek dedicated frontend and backend developers, blockchain experts, and a project manager to join our team in this exciting venture. Key Responsibilities: - Develop and integrate engaging gaming features, with a focus on in-game purchases. - Implement cutting-edge blockchain solutions to enhance the platform's functionality and security. - Collaborate with cross-functional teams to deliver an exceptional user experience. - Ensure all project milestones are met within the stipulated 3-6 month timeframe. Ideal Candidate: - Proficient in React and Node.js for frontend and backend development. - Experienced in implementing blockchain solutions using Solidity. - Demonstrates...

    $50 / hr Average bid
    $50 / hr (평균 입찰가)
    53 건의 입찰

    ...front-running and sandwich attack aspects of MEV. - Enable value extraction from transactions: The bot should be able to identify and extract value from transactions on the Ethereum and/or Solana network. - Implement effective monitoring of the mempool: The bot should systematically watch the mempool for profitable transactions to capitalize on. Required Skills: - Proficient and experienced in Solidity, JavaScript, and Python. - Strong understanding of Ethereum blockchains and MEV. - Capable of creating an efficient and sophisticated MEV software. - Provide advice on implementing bot on suitable RPC nodes. This project requires a developer who is knowledgeable and skilled in the aforementioned programming languages. The ideal candidate should have a proven track record in crea...

    $2274 Average bid
    $2274 (평균 입찰가)
    96 건의 입찰

    ...and the score. Use a simple drag-and-drop or click system for selecting cards and stats. Backend: Use blockchain (e.g., Solidity smart contracts) for secure random redistribution of the 8 cards. Integration with Chainlink VRF or similar for generating randomness. MetaMask wallet integration for players to log in and play. Additional Details: Game logic (comparison of stats, determining winners) can either run on the blockchain or the frontend, depending on feasibility. Include a basic leaderboard to display the top players (optional). The project must be completed within 24 hours. Let me know if you need further clarifications or suggestions. Skills Required: Solidity and Chainlink VRF React.js or HTML/CSS/JavaScript for frontend or for blockchain interaction IMP NOT...

    $9 Average bid
    $9 (평균 입찰가)
    4 건의 입찰

    I'm seeking a seasoned mobile app developer to create a comprehensive stock trading application that operates on both iOS and Android platforms. Key Features: - Real-time Stock Market Monitoring: The app should provide live updates of stock prices and market trends. - Options Chain Visualization: Users should be able to view the options chain smoothly. - Option Strategy Constructor: An integrated tool for users to build their own trading strategies based on options. Technical Aspects: - The backend will utilize to emit data, so familiarity with this technology is essential. - User authentication will be required through email/password, so experience with secure login systems is a plus. Ideal candidates should have a strong background in: - Cross-platform mobile app develop...

    $3000 Average bid
    $3000 (평균 입찰가)
    44 건의 입찰

    I need a Solidity contract that allows for calling two write functions from different contracts in a single transaction.

    $22 Average bid
    $22 (평균 입찰가)
    4 건의 입찰

    I'm looking for an expert in blockchain, specifically Ethereum, to develop a smart contract for a crowdfunding platform. Key requirements: - Extensive experience with Ethereum and smart contract development - Proven track record of creating secure, efficient smart contracts - Previous work with crowdfunding platforms is a plus - Solid understanding of Solidity programming language - Insight into Gas optimization strategies for Ethereum smart contracts The smart contract should include refund options for backers.

    $179 Average bid
    $179 (평균 입찰가)
    6 건의 입찰

    Budget $100 - $300 I want a trading bot similar to unibot, bonkbot or Trojan bot. Looking for a developer with the following skill set; 1. Programming and Development • Python, JavaScript, Rust, Solidity • APIs and Web3 Libraries • Smart Contract Development 2. Blockchain and Decentralized Finance (DeFi) • Blockchain Basics • DeFi Protocols • Wallet Integration 3. Data Analysis and Machine Learning • Market Data Analysis • Machine Learning • Time Series Forecasting 4. Trading and Financial Market Knowledge • Crypto Market Dynamics • Technical Analysis • Risk Management 5. Security and Compliance • Smart Contract Security • Authentication and Key Management • Regulatory Awareness 6. Use...

    $571 Average bid
    $571 (평균 입찰가)
    21 건의 입찰

    We are seeking an experienced Web3 Developer to help integrate cryptocurre...Chain. Implement cryptocurrency payment gateways for TRX, BNB, and other tokens. Build and integrate decentralized applications (DApps) with existing platforms. Integrate popular wallets (MetaMask, TRONLink, Trust Wallet). Ensure cross-chain interoperability between TRON and Binance Smart Chain. Qualifications: Proficient in , , or TRON-specific libraries. Solid experience with Solidity or TRON smart contract languages. Familiarity with TRC-20 and BEP-20 token standards. Experience in decentralized application development and blockchain security best practices. How to Apply: Please submit: Links to previous Web3 projects. GitHub or portfolio showcasing relevant skills. Expected timeframe and budget.

    $11 / hr Average bid
    $11 / hr (평균 입찰가)
    10 건의 입찰

    ...functionality of , and are in search of talented developers who specialize in both blockchain technology and backend development. 1. Project Details: - Objective: Create a user-centric platform that empowers users to manage their DeFi assets seamlessly. 2. Technology Stack: We aim to leverage the following technologies: - React - Node.js - JavaScript/TypeScript - Web3 - Solidity - Rust 3. Responsibilities: - Collaborate with a dynamic team to conceptualize and develop the DeFi dashboard. - Build engaging user interfaces and robust backend solutions. - Integrate blockchain functionalities to facilitate secure asset management and transactions. - Ensure the platform's scalability, security, and overall performance. 4. Qualifications: - Proven expertis...

    $42 / hr Average bid
    $42 / hr (평균 입찰가)
    42 건의 입찰

    ...the bot’s parameters for fee and position optimization. Error Handling and Safety Checks: - Implement fail-safes to avoid executing unprofitable transactions. - Include error handling for network congestion and unexpected transaction delays. Of course, it is necessary for the bot to automatically trade with a percentage value and fix profits / withdraw Only for experienced Rust/Solidity developers and Blochain specialists, as well as understanding and extensive experience in market strategies...

    $4742 Average bid
    $4742 (평균 입찰가)
    13 건의 입찰

    ...Real-time updates for game progress, including timers and current moves. A system to display the player's current balance and any winnings. Integration with MetaMask or other wallets for USDT transactions. --- Tech Stack: Frontend: HTML, CSS, JavaScript (React.js or any suitable framework). Backend: Node.js or a backend framework that supports smart contract interaction. Smart Contract: Solidity (for Ethereum-based contracts) or a suitable language for the blockchain you’re using. Blockchain Networks: TRON (TRC20) and Binance Smart Chain (BEP20). Wallet Integration: MetaMask or other suitable Web3 wallets for transaction signing. --- Project Deliverables: 1. A fully functional chess game that integrates with a smart contract for betting. 2. A smart ...

    $567 Average bid
    $567 (평균 입찰가)
    40 건의 입찰

    We're Apriorit, a company in the process of developing a decentralized...Qualifications: - 7+ years of professional experience in software engineering. - 5+ years of extensive experience in blockchain development. - Proven experience as a blockchain developer with a strong portfolio of completed projects. - Solid understanding of Ethereum’s architecture, programming languages (Solidity), and development tools. - Strong knowledge of smart contracts, decentralized applications (dApps), and blockchain security best practices. - Proficiency in modern programming languages like Solidity, Rust, Go. - Excellent problem-solving skills and attention to detail. - Ability to work independently and as part of a team. - Familiarity with integrating blockchain technology into s...

    $158 / hr Average bid
    $158 / hr (평균 입찰가)
    35 건의 입찰

    ...and manage user profiles. - Build trading features including market/limit orders, real-time order book updates, and support for multiple trading pairs. - Create liquidity pools and staking options for users. - Develop smart contracts in Solidity and integrate with Ethereum, Polygon, and BSC. - Build a real-time analytics dashboard and decentralized governance features. - Ensure platform performance, security, and conduct thorough testing. Requirements: - Experience in blockchain development and DEX creation. - Proficient in React, Node.js/TypeScript, Solidity, , Rust, and Golang. - Strong understanding of Ethereum, Polygon, and BSC ecosystems. How to Apply: If you are passionate about blockchain and meet the qualifications, please submit your resume and relevant project ...

    $63 / hr Average bid
    $63 / hr (평균 입찰가)
    43 건의 입찰

    I'm in need of a skilled blockchain developer with a strong focus on implementing smart contracts on the Ethereum platform. Key Responsibilities: - Develop and implemen...implementation of a suite of software solutions. - Building a strong blockchain product offering. Ideal Skills and Experience: - A Degree/Diploma in Computer Science, Engineering, or a related field. - At least 1 year of experience in a Software Architect or Software Engineer role. - Working knowledge of Solidity, Crypto, and Ethereum. - Strong analytical skills and comfort with numerical data. - Self-starter and demonstrate a high level of resilience Requirements - Ethereum Smart Contracts - Solidity - OpenZeppelin - Truffle - Front End: HTML, CSS, Bootstrap, JavaScript, React - Back End: Node.js, ...

    $5225 Average bid
    $5225 (평균 입찰가)
    10 건의 입찰

    I'm in need of a skilled blockchain developer with a strong focus on implementing smart contracts on the Ethereum platform. Key Responsibilities: - Develop and impl...of a suite of software solutions. - Building a strong blockchain product offering. Ideal Skills and Experience: - A Degree/Diploma in Computer Science, Engineering, or a related field. - At least 1 year of experience in a Software Architect or Software Engineer role. - Working knowledge of Solidity, Crypto, and Ethereum. - Strong analytical skills and comfort with numerical data. - Self-starter and demonstrate a high level of resilience Requirements - Ethereum Smart Contracts - Solidity - OpenZeppelin - Truffle - Front End: HTML, CSS, Bootstrap, JavaScript, React - Back End: Node.js, ...

    $5115 Average bid
    $5115 (평균 입찰가)
    27 건의 입찰