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    2,000 blockchain bitcoin wallet jobs found

    I'm looking for a skilled Web3 blockchain developer to help me create and manage Ethereum-based smart contracts. The ideal freelancer for this project should have extensive experience with the following: - Developing Ethereum-based smart contracts - Integrating these contracts with decentralized applications (dApps) - Implementing automated transactions within the smart contracts A key part of the project is token creation and management, so proficiency in this area is essential. Please include examples of your previous work with Ethereum smart contracts and dApp integration in your bid.

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    *Colour Game Requi...number and withdraw manage options all information update control panel *GAME PANNEL* ID NAME MOBILE NO 4. AVAILABLE BALANCE NICK NAME BORD & READ RULE ,LEVEL 1&LEVEL 2,APPLY SACTIONS RECHARGE IN SIDE RECHARGE RECORD SAME WITHDEAWAL RECORD TO BALANCE MY PROMOTIONS CODE,MY PROMOTION LINK,COPY LINK 9.WALLET,RECHARGE,WITHDRAWAL,TRANSACTIONS CARD IN SIDE NAME IFSC CODE BANK NAME BANK ACCOUNT NO MOBILE NO EMAIL ID UPI ID CONTINUE TO ADD ADDRESS SECURITY IN SIDE RESET PASSWORD MOBILE NO VERIFICATION CODE (OTP) NEW PASSWORD CONTINUE TO SAVE DOWNLOAD &SUGGESTIONS

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    I need a health care mobile application designed for both patients and medical practitioners. I would like to make changes to a flutter app. Current Status --------------------------- theres a flutter health tracking and monitoring app i want to make ch...ctors-appointments-managements-diagnostic-on-chat-or-video-call/53328374 ... user can register either as Dr, pharmacist or nurse. User can see a list of all their patients ...as patients can follow a health practionier.. Health practionier can click on users details and see all their health dashboard and statistics . Health practionier can chat with patient ... Health practionier app has wallet, so that admin can make payment to practionier. Health practitioner app, works in sync with patient app...like uber and uber drive...

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    I'm looking for an experienced professional who can help with the installation of my ASIC miner. Based in Miami FL. Key responsibilities: - Install ASIC miners on-site - Ensure all equipment is set up for optimal performance Ideal skills and experience: - Proven track record in Bitcoin mining installations - Familiarity with ASIC hardware - Technical troubleshooting ability

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    We are seeking a talented and dedicated news writer from Nigeria or South Africa with a strong passion for the crypto and finance sectors. The ideal candidate will be responsible for producing 3 to 5 daily news articles, each ranging from 500 to 600 words. Responsibilities: Write and deliver 3 to 5 news articles daily on topics related to cryptocurrency, blockchain technology, financial markets, and related sectors. Stay up-to-date with the latest trends and developments in the crypto and finance industries. Ensure all content is accurate, well-researched, and adheres to our editorial guidelines. Meet daily deadlines consistently. Compensation: $1.5 per news article (500-600 words). Note: Applications without a dedicated cover letter will not be entertained.

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    We are seeking a talented and dedicated news writer with a strong passion for the crypto and finance sectors. The ideal candidate will be responsible for producing 3 to 5 daily news articles, each ranging from 500 to 600 words. Responsibilities: Write and deliver 3 to 5 news articles daily on topics related to cryptocurrency, blockchain technology, financial markets, and related sectors. $1 per news article (500-600 words). Note: Applications without a dedicated cover letter will not be entertained. AI-generated cover letters will not be entertained.

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    Hello. I am now looking for a phaser3 game developer. We already have a pre-existing game. We want to make it run on the telegram and integrate with telegram wallet. Only dedicated developer with strong experience and similar previous work example will be accepted. This is a quick project that can guarantee you 5-stars and can be converted to full time job.

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    Can you please get the escrow wallet implemented on our website

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    ...the process of creating a decentralized finance dashboard, and I'm seeking talented developers with a robust background in both blockchain and backend development. Key Requirements: - Extensive experience with Ethereum, as this is the chosen blockchain platform for the project - Proficiency in Node.js, which will be our primary backend technology - Strong understanding of decentralized finance concepts and metrics While I haven't yet defined specific functionalities for the dashboard, a deep understanding of potential features such as portfolio tracking, yield farming analytics, and lending and borrowing metrics would be beneficial. Ideal Skills: - Blockchain Development - Node.js - Understanding of Decentralized Finance - Backend Development Your ex...

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    I am seeking a skilled blockchain developer with extensive experience in token creation on the Binance Smart Chain (BSC). Key Responsibilities: - Develop a unique cryptocurrency token based on my specifications - Ensure the token is fully functional, secure, and compliant with BSC standards Ideal Skills: - Profound understanding of blockchain technology and cryptocurrency - Proven experience in token creation, specifically on BSC - Strong programming skills, particularly in Solidity and JavaScript The right candidate for this project will be able to create a custom token that meets my vision for this project and is capable of operating within the burgeoning BSC ecosystem. Your ability to deliver a secure, reliable, and fully functional token will be key to the success of t...

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    I am seeking a skilled blockchain developer with extensive experience in token creation on the Binance Smart Chain (BSC). Key Responsibilities: - Develop a unique cryptocurrency token based on my specifications - Ensure the token is fully functional, secure, and compliant with BSC standards Ideal Skills: - Profound understanding of blockchain technology and cryptocurrency - Proven experience in token creation, specifically on BSC - Strong programming skills, particularly in Solidity and JavaScript The right candidate for this project will be able to create a custom token that meets my vision for this project and is capable of operating within the burgeoning BSC ecosystem. Your ability to deliver a secure, reliable, and fully functional token will be key to the success of...

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    ** Please read this carefully ***** ** do not direct message me in any way unless you wish to be told frankly that you are wasting both of ours time *** ** see how to respond at the bottom *** The Viibe Hub is a brand new project that uses a high definition microphone array alongside iOT technology, AI and Blockchain to provide an exciting new service for environmental monitoring. I'm looking for a talented DSP specialist with experience in high-definition audio applications. Your main task will be calculating directionality using microphone arrays for environmental monitoring in urban areas. Key Responsibilities: - Stage 1 is to help us define the DSP chipset we will use on board the Viibe Hub. Stage 2: - Take instructions from our in-house audio specialists to calculate ...

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    I am seeking a seasoned developer experienced in JavaScript and Node.js to create a sophisticated online banking platform. The project entails the following key features: - Blockchain-based transactions using Hyperledger Fabric. - Multi-factor biometric authentication incorporating fingerprint scanning, facial recognition, and retina scanning. - AI-driven financial advice. - Quantum-resistant cryptography. - Multi-currency support. - Fraud detection. - Customizable UI. Given the critical role of secure transactions in online banking, proficiency with Hyperledger Fabric is essential. The ideal candidate will have a strong background in developing secure, user-friendly applications. Expertise in AI and cryptography will be a significant advantage. Please provide examples of relevant ...

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    Hi, Can you do other graphic design tasks like the following: 1. Putting prod...image (Ex. Putting watch on person arm). 3. Lifestyle Image chart with products. 4. Can you make images like attached? I need 300 Images made like this bundle pack. The Jewelry/Watch set will be different but other two items will remain the same. I need 282 bundle products like attached. The only image that changes is the Jewelry/watch set. And some women's bundle pack I want a pink wallet and black wallet option.I will hire you for a test and then for the rest once test finished. I have many more products that I will need help with later too. So if we work well together I can keep hiring you It's basically copy and pasting images together into One main image. I could do it my self bu...

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    I'm looking for a professional who can help me create a public cryptocurrency blockchain similar to Bitcoin, Ethereum, or Doge chain. This will be a Delegated Proof of Stake (DPoS) consensus mechanism-based blockchain, with a primary focus on decentralization. Key Requirements: - Extensive knowledge and experience in blockchain development - Proficient in creating public networks - In-depth understanding of DPoS mechanism - Capable of prioritizing decentralization in design - Previous work on cryptocurrency projects is a plus Your work will ultimately contribute to a highly decentralized public blockchain, leveraging the efficiency and scalability benefits of the DPoS consensus model.

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    I'm seeking a proficient Full Stack Developer to build a fully functional E-commerce websi...have skill 5 years of experience Tech Stacks for Qualified Software Engieer Frontend Development with HTML, CSS, JS/TS, React, Angular, Vue, Svelte Backend Development with JS/TS, Java, Ruby on Rails, ASP.NET, Python Cloud Development with AWS, GCP, Azure Database: PostgreSQL, MySQL, MongoDB, Firebase DevOps: Docker, CI/CD tools (CircleCI, github actions, Jenkins) Version Control: Git Blockchain: EVM, Solana, Hyperledger, Cosmos SDK, Solidity, Rust, Hardhat Mobile App development: React Native, Flutter, Ionic, Xamarin, Java/Kotlin, Swift AI development: OpenAI, MakerKit UI/UX designs 3D work Your proposal should showcase your past work in similar projects and your approac...

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    DO NOT USE AN IMAGE OF A WALLET IN THE LOGO I'm in the market for a compelling logo for my crypto wallet. I'm open to all types of designs - modern, classic, or minimalist. The logo can incorporate a variety of elements, whether that's cryptocurrency symbols, a wallet icon, or abstract shapes. However, the key message I want the logo to convey is simplicity and ease of use. Ideal skills and experiences for this job include: - Graphic design, particularly in logo design - Familiarity with cryptocurrency and its symbols - Ability to create minimalist and modern designs - Capacity to convey a specific message through design The name of the wallet is- User Global Wallet NO 3D SUBMISSIONS

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    I need a professional blockchain developer to create an NFT minting contract on the Tron network. The developer should have extensive experience with Tron blockchain, smart contract development, and NFT standards. Example NFT minting contract: First check and then fork the above contract with new images Ideal Skills: - Proficiency in Solidity, TRC-721, and TRC-1155 standards. - Experience with Tron blockchain and its development tools. - Strong understanding of NFT minting processes and standards.

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    I'm looking for a Senior Blockchain Developer with extensive experience in smart contract development. The ideal candidate should be proficient in the following blockchain platforms: Ethereum and Solana. Key Responsibilities: - Design, develop and implement smart contracts on Ethereum and Solana - Work collaboratively with our team to deliver high-quality blockchain solutions Skills and Experience: - Proven experience in smart contract development - Deep understanding of Ethereum and Solana platforms - Excellent problem-solving skills and attention to detail - Strong communication and teamwork skills Please apply if you think you are a good fit.

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    USDT
    Ended

    Transfer of USDT in wallet of the client

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    We are seeking a talented Front-End Developer to join our team in developing an NFT Marketplace tailored for our commu...encountered some delays due to a lack of communication with our previous front-end developer, resulting in several incomplete features, including the NFT minting page. Requirements: Proven experience as a Front-End Developer, with a strong portfolio of projects, preferably including blockchain or NFT-related work. Proficiency in HTML, CSS, JavaScript, and modern frameworks such as React, Vue.js, or Angular. Familiarity with Web3 technologies and libraries (e.g., , ) for integrating blockchain functionalities. Strong understanding of responsive design principles and cross-browser compatibility issues. Excellent problem-solving skills and attention to detail...

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    I'm seeking an experienced JavaScript and Blockchain developer to create a smart contract on the Ethereum platform. The primary function of this contract will be the creation of a new token. Ideal skills and experience for the job include: - Expertise in JavaScript and Solidity (the programming language for Ethereum). - Proven experience in creating smart contracts and DApps. - Deep understanding of the Ethereum blockchain. - Prior work in token development is highly desirable. - Strong problem-solving and debugging skills. Please provide examples of previous relevant projects in your proposal.

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    ...errors related to baggage information, ensuring correct price segmentation and availability of options. PNR Code Validation: 2. B2B Wallet: Problem: There is confusion regarding how the B2B Wallet should be integrated into the booking flow, specifically whether SOAP services are required to generate virtual cards or if the payment form should be entirely removed from json. Tasks: Analyze Amadeus documentation to determine the precise requirements for B2B Wallet. Implement SOAP integration if necessary, for generating individual virtual cards. Evaluate the option of removing the standard payment form and ensure transactions are correctly managed through the B2B Wallet. Test all scenarios to identify and resolve potential errors. 3. Problem: Issues with gener...

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    I'm looking for a talented Full Stack Developer, proficient in React, to enhance the UI and integrate Ethereum's blockchain APIs into my project. Key Responsibilities: - UI Development: Utilize React to create a seamless and interactive user interface. - Blockchain API Integration: Implement transaction management and data retrieval from the Ethereum blockchain. The ideal candidate should have: - Extensive experience with React and full stack development. - Proven track record in integrating blockchain APIs, particularly with Ethereum. - Strong understanding of transaction management and data retrieval processes on the blockchain. Please provide examples of your previous work that align with this project.

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    We have a Web3 application with a fully developed frontend. We are looking to enhance our application by improving the existing smart contract or possibly developing a new one from scratch. We require a skilled and experienced blockchain developer to assist with the following: Project Requirements: Option 1: Modify Existing Smart Contract Evaluate our current smart contract and propose necessary improvements and optimizations. Implement the approved modifications ensuring seamless integration with the existing frontend. Ensure the modified contract adheres to best security practices and is thoroughly tested. Option 2: Develop New Smart Contract Design and develop a new smart contract tailored to our application's needs. Integrate the new contract seamlessly with the existin...

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    ...developer to connect a blockchain-based application to my existing tennis app, with the primary goal of creating NFTs for player avatars. This integration will enhance the app's offering and introduce a unique twist to player interaction. Key Responsibilities: - Connect the blockchain application to the tennis app. - Develop a system for creating unique, tradeable NFTs from in-game player avatars. - Ensure seamless integration of these assets into the gameplay experience. Ideal Skills and Experience: - Expertise in blockchain technology and NFT creation. - Previous experience in game development and app integration. - Strong understanding of data security and cryptocurrency. This project is an exciting opportunity to blend traditional sports with innovative ...

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    ...RESTful APIs and web services. 4. Blockchain Developer (Important) Responsibilities: Design and implement smart contracts and blockchain-based applications. Collaborate with other developers to integrate blockchain functionalities into existing systems. Stay current with blockchain trends, tools, and best practices. Conduct thorough testing and code reviews to ensure functionality and security. Develop and maintain blockchain-based applications and smart contracts. Collaborate with frontend developers to integrate blockchain functionalities. Conduct audits and optimize existing blockchain solutions. Qualifications: Strong understanding of cryptographic principles and blockchain architecture. Familiarity with DeFi,...

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    We are seeking a skilled and experienced blockchain game developer to help enhance our existing blockchain-based gaming application. Our game has garnered a loyal player base, and we are looking to improve its functionality, graphics, and overall user experience. The ideal candidate will have a strong background in blockchain technology, game development, and a passion for creating engaging gaming experiences.

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    We are seeking a skilled and experienced blockchain game developer to help enhance our existing blockchain-based gaming application. Our game has garnered a loyal player base, and we are looking to improve its functionality, graphics, and overall user experience. The ideal candidate will have a strong background in blockchain technology, game development, and a passion for creating engaging gaming experiences.

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    Phase 1: Design of the software architecture to handle the generation, transfer, and validation of flashing BTC. Integration planning with various wallets, including Binance, Blockchain, Trust Wallet, and others Phase 2: Implementation of the flashing BTC generation feature. Development of wallet compatibility (P2PKH, P2SH, P2WPKH, P2WSH, etc.). Error handling and transaction confirmation features (e.g., mail confirmation, SMS confirmation). Licensing system integration for software activation and use. Phase 3: Comprehensive testing of the software, including transaction tests, wallet compatibility, and security checks. Ensuring that the software functions as expected within the specified parameters (e.g., 60-90 days validity, transferability, etc.). Project co...

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    Create a miniapp bot for telegram in php and mysql BOT FUNCTION: When User send /start command it will send the miniapp link in inline button When user open the miniapp it show to complete transaction button , when user click on that button ton wallet popup apper to connect wallet after connecting wallet it will send transaction of 0.2 TON with memo of "verify" When user click on verify it show the popup of transaction successfully completed and hide the complete transaction button and add userid in database whenever same user open the miniapp again it didn't show the button instant it show "YOU ARE VERIFIED"

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    I need a proficient developer to integrate a blockchain API endpoint with my UI. The primary goal of this integration is to display real-time transaction statuses from the Ethereum network. Ideal Skills and Experience: - Proficiency in Ethereum's blockchain - Strong API integration experience - UI/UX understanding - Real-time data handling capability

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    I'm looking to post a job for a talented Blockchain Developer with specialization in Ethereum. This role is crucial for our ongoing and future projects. Key Responsibilities: - Develop and deploy smart contracts - Maintain and optimize our blockchain infrastructure - Integrate innovative blockchain solutions with our existing systems Ideal Skills: - Expertise in Blockchain protocol engineering - Proficiency in Decentralized app (dApp) development The right candidate for this position will help us leverage the potential of blockchain technology to its fullest. Previous experience in similar roles is highly desirable.

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    Project Title: Bitcoin Mixing Service Back-End Development Project Description: I am looking for an experienced developer to build a back-end system for a Bitcoin mixing service. The service will allow users to anonymize their Bitcoin transactions by mixing their coins before sending them to a specified receiver's address. This project requires expertise in Bitcoin transactions, secure server setup, and basic web or command-line interface development. Key Features Needed: Transaction Handling: Ability to accept Bitcoin deposits, mix them, and send them to a specified receiver's Bitcoin address. Deduct a service fee (e.g., 10.6%) from the transaction amount. Mixing Code System: Generate a unique mixing code for users to prevent them f...

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    I'm in need of a seasoned blockchain developer who can create a BEP20 contract for a new token. This contract will incorporate specific tokenomics features, most notably transaction fees which will vary based on certain conditions. Ideal Skills: - Proven experience in developing BEP20 contracts - Deep understanding of tokenomics and transaction fee structures - Proficiency in programming languages used for smart contract development - Ability to create a secure and efficient contract Looking forward to your bids.

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    Hi there i need an app from scratch IOS & andriod Same as Redotpay app payment with your cryptocurrencies & USD With VIRTUAL CARD Support NFC also i need to add DCA system any1 have wallet can create DCA bot for his money and he can also pay with his money by the virual card security BIO & 2FA FULL SECURITY Time & Price please

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    I need a blockchain developer who can create a program that has the ability to trade solana based coins on Raydium. Essential Duties: - Lead the development of a fully functional DEX. - Must work on a CLMM pool based on Raydium (Without Orderbook) - Implement essential features such as trading pairs, order types, and liquidity provision. Ideal skills and experience: - Proven experience in DEX development. - Strong knowledge of blockchain and cryptocurrency mechanisms. - Proficiency with security protocols and measures related to DEXs. - Excellent problem-solving skills and attention to detail.

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    I am seeking a seasoned blockchain developer to integrate with the Ethereum platform. The primary focus of this project is to enable efficient data retrieval from the blockchain, specifically transaction details and account balances. Ideal skills and experience for the job: - Extensive knowledge and experience with Ethereum blockchain - Proficient in API development and integration - Strong understanding of blockchain data structures - Excellent problem-solving skills and attention to detail

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    ...the given wallet anyways, if you work with crypto you should know this) I'm in need of a program that can help me flash various cryptocurrencies including Bitcoin, Ethereum, Litecoin, Doge, Shiba Inu, etc. Key Features: - The primary purpose of flashing these cryptocurrencies is for temporary holdings. - The flashed cryptocurrencies should be able to be used on both exchanges and wallets. Ideal Skills: - Extensive knowledge of cryptocurrency and blockchain technology. - Experience in creating or working with programs for flashing cryptocurrencies. - Understanding of security measures to ensure safe temporary holdings. If you are experienced in this you will need to provide proof that the coins such as BTC will indeed work so be prepared to send an amount t...

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    I'm in need of a professional web designer and developer. The project involves creating a user-friendly UI for an informational website and integrating data from a Blockchain API. Ideal Skills: - Proficient in UI/UX design - Experienced in web development - Skilled in API integration - Knowledgeable in Blockchain technology Key Responsibilities: - Design an engaging and intuitive UI for an informational website - Arrange and present data from the Blockchain API in a user-friendly manner

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    I'm looking for a cross-platform (iOS & Android) mobile app developer to create a simple wallet application for a travellers' co-operative. Key Features: - A wallet that allows for savings. - A simple interface for loan applications. Ideal Skills: - Cross-platform mobile application development. - Experience in creating finance-based applications. - Understanding of user-friendly interface design. - Knowledge of both iOS and Android development. Freelancers with a background in travel-related apps or co-operative finance systems would be particularly desirable.

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    ...providing opportunities for valuable experience in financial and economic fields. 2. **Monetization Capabilities:** - Implement features that allow for monetization through the sale of products and services, training courses, and other platform features. - The platform should integrate blockchain technology to facilitate the issuance and use of digital tokens as a tool for advanced financial transactions, thereby increasing member interaction. 3. **Token Allocation and Usage:** - Utilize blockchain technology to issue digital tokens to members, which can be used for: - **Internal Transactions:** Members should be able to easily buy or sell services, products, or participate in internal network projects using tokens. - **Collaborative Projects:** Tokens...

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    We need a developer to create an automated notification system for the Solana and tron ecosystem. This system should manage new coin additions, monitor b...system for the Solana and tron ecosystem. This system should manage new coin additions, monitor buy activities, and send updates to various channels, including a Master Trending Channel, Solana Trending Channel, Token Owner Group, and our website. The system must integrate with the Solana and tron blockchain, support API connections, and provide a user-friendly admin interface. Key features include real-time notifications, scalability, security, and an analytics dashboard. Requirements: Blockchain expertise, API integration, backend development, real-time notifications, and security best practices. Please provide your ti...

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    I'm looking for a developer to create a messaging and video chat app with an integrated wallet. The app will cater to both free and premium users, allowing them to update their own timelines and run campaigns. Core Features: - The app must be available on Android and Web - It should support text messaging, video calls, and voice calls. Wallet Functionality: - The wallet needs to have the ability to send/receive money, store funds securely, and track transaction history. Ideal Skills and Experience: - Proficient in Android and Web app development - Experience in creating messaging and video chat apps - Knowledge of secure wallet integration and transaction tracking - Understanding of developing tiered user experiences (free vs premium) - Familiarity with ...

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    ...seasoned Fullstack Developer with solid experience working with blockchain, specifically Ethereum. The main focus of this project involves: - Blockchain Integration: Primarily working on connecting our systems with Ethereum, ensuring seamless interaction and performance. - Ethereum Tasks: This includes Smart contract development and deployment, interfacing with decentralized applications (DApps) and handling transactions and wallet integration. - Team Leadership: Guiding and leading the development process for our Junior and Middle-level developers. Mandatory skillsets are Node.js, React.js/Next.js, Typescript, MongoDB. Any basic python knowledge is Good! The ideal candidate for this project should have a proven track record in blockchain development, with...

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    Currently our team is developing a blockchain Game project. Our Project is Harmony netwpr's on-chain the 'play-to-earn' blockchain-based triple-A tower defense Game with NFTs that makes strong use of zero-knowledge proofs to ensure the reliability of player guesses and ensure the Game is not altered. In this role, assists in resolving technical issues related to blockchain interaction and smart contract execution. Share research findings with external partners and contribute to the broader Web3 ecosystem. You will expand our team with passionate Senior Web3 developers who want to learn, play, and grow with us. Ready for a new challenge?

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    I am seeking a seasoned blockchain developer with extensive experience in smart contracts, DeFi applications, and NFT platforms. This project involves working across multiple blockchain platforms, specifically Ethereum, Solana, and the Binance Smart Chain. Key Responsibilities: - Development: Creating robust and efficient blockchain solutions. - Auditing: Ensuring the integrity and security of smart contracts and other blockchain components. - Integration: Seamlessly connecting our blockchain applications with existing systems. Ideal Skills and Experience: - Proficiency in smart contracts, DeFi applications, and NFT platforms. - Extensive experience with Ethereum, Solana, and Binance Smart Chain. - Strong auditing skills to ensure the security of blo...

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    I'm looking for a developer to create an authentic doctor review system leveraging the power of public blockchain technology. Key Project Aspects: - The primary aim of this system is to ensure the authenticity of reviews. This will help in building trust among patients and ensuring that the feedback they are receiving is genuine. - Essential functionalities include user authentication to verify the identity of reviewers and a system for rating and commenting on doctors. Ideal Skills: - Blockchain Development: Profound knowledge and experience with public blockchain frameworks is crucial. - Web Development: Skills in creating user-friendly interfaces and systems for user authentication. - Security: As this system deals with personal health and feedback, a strong...

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    I'm looking for an experienced blockchain developer to create a custom NFT contract on the Solana network. This contract should incorporate two specific features: a fixed fee on transfers and the ability to blacklist certain addresses. Key requirements: - The contract should impose a fixed transfer fee of 1 SOL. - The blacklisting feature should allow for certain addresses to be prevented from sending or receiving the NFTs. Writing a test application or unit tests are mandatory. Ideal candidates for this project should have: - Extensive experience with the Solana blockchain and NFT contract development. - A solid understanding of implementing custom features within blockchain contracts. - Proven ability to deliver secure, reliable and efficient code.

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