Blockchain Jobs
Blockchain, is a technology that encompasses digital records or information, referred to as “blocks”, that are linked together securely and share the same network. This distributed ledger technology is the backbone of a new wave of innovation being implemented into our lives, with new disruptive applications and solutions seen in a growing number of industries. Clients may hire a Blockchain Developer to harness this power and build a secure digital platform tailored to their business needs.
A Blockchain Developer can create unique solutions leveraging blockchain technology to securely store, access, mine and distribute data in an efficient manner. They can leverage features such as blockchain tokens for payments, smart contracts for automated transactions, privacy layers and data protection techniques. Additionally, the expertise of a Blockchain Developer will ensure the project complies with industry standards, ensuring secure data and validation.
Here's some projects that our expert Blockchain Developer made real:
- Creation of custom applications for fast and secure NFT (Non-Fungible Token) transactions
- Developments of tools that allow synchronization with physical products using Bluetooth protocol
- Integrations between wallets hosting cryptographic assets with ecommerce providers
- The establishment of exploratory networks to provide insights into decentralized ecosystems
- Developments to foster the growth of peer-to-peer energy trading networks
At Freelancer.com customers have posted amazing projects covering a variety of use cases related to blockchain utilising the Freelancer verified experts. With help from professionals on Freelancer.com customers can create unique projects addressing their business needs with safety, security and legality in mind. Rock your blockchain project today and hire an expert Blockchain Developer on Freelancer.com now!
Dari 68,893 ulasan, klien menilai Blockchain Developers kami 4.82 dari 5 bintang.Rekrut Blockchain Developers
I am looking for a skilled developer to create a blockchain-based web application for personal use. Features required: - User registration: The application should allow users to create accounts and login securely. - Transaction processing: Users should be able to initiate and process transactions securely through the application. - Data encryption: All data stored and transmitted within the application should be encrypted to ensure privacy and security. Ideal skills and experience: - Proficiency in blockchain technology and development. - Experience with user registration and authentication systems. - Knowledge of data encryption techniques and best practices. The client already has a specific blockchain platform in mind.
I am looking for a freelancer to help me set up a trading bot on Telegram and explain its functions. This project is for personal use and I have a beginner level of experience with trading bots. The main functionality I require from the bot is automatic buying and selling. I want the bot to be able to buy crypto in the first liquidity sales blocks, particularly for pre-sales. Ideal skills and experience for this job include: - Proficiency in setting up trading bots on Telegram - Knowledge of different trading strategies for crypto - Experience with pre-sales and liquidity sales blocks - Ability to explain the functions of the bot in a clear and understandable manner If you have the skills and experience required, please submit your proposal.
I am looking for a senior Java developer from Eastern Europe with at least 10 years of experience to help me with a major refactor of our existing blockchain wallet system. This project is for an existing business and the goal is to change the signature algorithm in a multiparty computation. Scope of the refactoring: - Major refactor to improve functionality Timeline expectations: - 6 weeks est Ideal skills and experience: - Java Spring, Security, Cryptography - At least 10 years of experience as a Java developer - Strong understanding of blockchain technology and wallet systems - Experience with refactoring and improving the functionality of existing systems - Knowledge of security protocols and best practices in blockchain development - Ability to work independently and meet project ...
I am in need of a crypto trading assistant who can primarily handle trade execution tasks. The ideal candidate should have an intermediate level of experience in crypto trading and should be familiar with the Binance trading platform. Specific requirements for the project include: - Trade Execution: The assistant will be responsible for executing trades on the Binance platform. - Familiarity with Binance: The assistant should have experience and knowledge of the Binance trading platform. - Intermediate Level of Experience: The ideal candidate should have a solid understanding of crypto trading and be able to make informed decisions regarding trade execution. - Other Skills: While not mandatory, familiarity with other trading platforms such as Coinbase would be a plus. If you have the ne...
I need an api to find active wallets in NFT collections on solana so I can send my SPL token which has already been created and a script to send those 100k tokens
Project Description: I am looking for someone to help me add more validators to a running Proof of Authority (PoA) evm based blockchain. Requirements: - Experience with adding PoA validators to a blockchain - Knowledge of blockchain technology and its principles - Familiarity with the infrastructure required to add validators to a running blockchain Skills and Experience: - Proficient in blockchain technology and its various consensus mechanisms - Experience in setting up and configuring validators for PoA blockchains - Understanding of the requirements and infrastructure needed to add validators to a running blockchain If you have the necessary skills and experience in blockchain technology and can assist me in adding more validators to my PoA evm based blockchain, please submit your ...
Project Description: I am looking for someone to help me add more validators to a running Proof of Authority (PoA) evm based blockchain. Requirements: - Experience with adding PoA validators to a blockchain - Knowledge of blockchain technology and its principles - Familiarity with the infrastructure required to add validators to a running blockchain Skills and Experience: - Proficient in blockchain technology and its various consensus mechanisms - Experience in setting up and configuring validators for PoA blockchains - Understanding of the requirements and infrastructure needed to add validators to a running blockchain If you have the necessary skills and experience in blockchain technology and can assist me in adding more validators to my PoA evm based blockchain, please submit your ...
I am looking for a freelancer to create a real estate cryptocurrency for me. I am open to suggestions for specific features and requirements. Timeline: The project needs to be completed within 1-3 months. Budget: My budget for this project is less than $1000. Skills and Experience: - Experience in cryptocurrency development - Knowledge of real estate industry - Strong programming and coding skills - Ability to create secure and efficient blockchain technology - Understanding of smart contracts and token creation
Presale Contract Requirements: Token will be a placeholder, so nothing will be airdropped when presale ends (I will create the token and airdrop later) People will be able to track how much money to put in, and how much tokens they will be getting I should be able to create multiple rounds as needed. As I am thinking of creating 3 rounds. Private/Public 1/Public 2 I should be able to change the price and timer settings as needed. When the timer ends, the 2nd round should start. But I should be able to decrease or increase the timer It’s going to be on polygon So matic and usdt and usdc on polygon chain Matic - first USDT - second USDC - third
HI guys one source code is used in that video file attached please see the video carefully and please create that darlene pro source code for me.....I am looking for a freelancer who has experience with Oracle and can assist with padding the file. Specific Version of Oracle: Oracle 11g, Oracle 12c, or Oracle 19c. Purpose of Padding: The main goal is to enhance security. Deadline: There is no specific deadline for this task. Ideal Skills and Experience: - Strong knowledge of Oracle database systems, specifically the chosen version (11g, 12c, or 19c). - Experience with file manipulation and padding techniques. - Familiarity with security measures and best practices in Oracle databases. - Attention to detail and ability to follow instructions accurately. - Effective communication skil...
This project is to build a crypto trading platform. This includes developing and improving the frontend interface, adding new features, and making improvements to existing features. And we are building a crypto trading platform now. but we have some issues on the front-end that need to be fixed urgently Required Skills The ideal candidate will have experience in the following areas: • Frontend web development using HTML, CSS, and JavaScript • Creating responsive web designs that are compatible with various browsers and devices • Creating user interfaces that are intuitive and visually appealing • Integrating third-party APIs • Testing and debugging • Familiarity with cryptocurrency and blockchain technology
Project Title: Blockchain Security Implementation Overview: I am in need of high-level blockchain security services to ensure the safety and integrity of my blockchain system. I require expertise in transaction monitoring, smart contract auditing, and network penetration testing. Specific Requirements: - Transaction Monitoring: I need comprehensive monitoring of all transactions within the blockchain system to detect any suspicious or unauthorized activities. - Smart Contract Auditing: The selected professional should be able to thoroughly review and audit the smart contracts within the blockchain system to identify and fix any vulnerabilities or loopholes. - Network Penetration Testing: I require a skilled individual who can perform rigorous penetration testing to identify and address a...
I need a developer who can get historical data of Ethereum token pair by using api with pairaddress
Hi, I'm currently searching for a Dev who could help me complete my project. It's a Crypto Bot connected to the Ethereum Chain. Its logic is based on Front-Running, meaning it scans the blockchain for upcoming transactions, it finds a transaction, inputs a buy before the transaction and inputs a sell after, making a profit out of every transaction. Now, what I need is security features and implementations. As we know the Crypto Market has many scams that can be scanned by the bot. I have 2 solutions that might fix the last 10% of configuration. First, Implementing a whitelist of trusted tokens only. The Second one is implementing a script to test an upcoming transaction on GoErli Testnet chain, meaning it would test the transaction before actually doing it on the mainet chain.
I need experience developer in the Astar network, Polkadot ecosystem, Substrate ecosystem and also ink! smart contract language
I wish to create NFT with fractional ownership of a piece of musical memorabilia then market it. Please send links to NFT projects successfully completed.
Требуется опытный Node.js разработчик (опыт 3–6 лет) для доработки и рефакторинга сервисов. Мы занимаемся разработкой проектов в области распределенных реестров (блокчейна) на базе DAG - ubix.network. Проекты в финтех, легалтех, интернете вещей с использованием собственной соцсети в качестве интерфейса. Требования: Опыт работы с Node.js от 3 лет. Опыт коммерческой разработки от 5 лет. Хорошее знание ООП. Готовность следовать стандартам разработки: Prettier/linter Опыт в TDD (или покрытие кода тестами постфактум), Mocha/Sinon. Знание протоколов TCP/IP. Инициативность Плюсом будет: Опыт в блокчейне/шифровании. Обязанности включают передовую работу над блокчейном, доработку, рефакторинг Отбор в команду: 1. Изучение вашего репозитория. 2. Краткое собеседование (10-20 минут). 3...
Requirements Document for a VeChain-Based Traceability Application 1. Introduction 1.1 Application Objective: Develop a traceability application on the VeChainThor Blockchain to ensure transparency and security throughout the supply chain. 2. Key Features 2.1 Product Registration: Enable decentralized recording of product details, including origin, storage conditions, important dates, etc. 2.2 Bidirectional Traceability: Ensure the ability to track products from origin to final destination. 2.3 Authenticity Verification: Integrate verification mechanisms for consumers to confirm product authenticity. 3. VeChainThor Smart Contracts 3.1 Development: Create Solidity smart contracts to manage key application functionalities. 3.2 Integration: Ensure seamless integration of smart contracts wi...
I am looking for a visionary crypto developer to create a fun and innovative crypto coin. The ideal candidate should have experience in building crypto coins on blockchain platforms other than Ethereum or Bitcoin. Functionality: - The crypto coin will serve as a utility token for a specific platform. - It should have the ability to facilitate transactions within the platform and provide additional benefits or features. Timeline: - This project has a timeline of more than 3 months, allowing for thorough development and testing. Skills and Experience: - Strong understanding of crypto development and blockchain technology. - Experience in building utility tokens for specific platforms. - Knowledge of alternative blockchain platforms for building crypto coins. If you are a creative and fo...
I am looking for a freelancer to help me run a specific Github project for personal use. I have a specific project in mind that I would like to work on. I do not require any customizations or modifications to the project. Ideal Skills and Experience: - Proficient in Github - Familiarity with the specific project I have in mind - Ability to effectively manage and run a project on Github
I have an existing multi-vendor eCommerce project () that needs a few upgrades. I would also like to bring the project closer to WEB3 standards. 1. New theme integration 2. Version updates for PHP and Laravel 3. Conflict Resolution Module 4. Delivery/Tracking 5. AI Assistance Integration 6. Blockchain Wallet Set-up (ERC 20 Token or similar), and ICO In summary, a multi-vendor e-commerce portal in a Web3 scenario would likely revolve around decentralisation, blockchain integration, user empowerment, enhanced security, and transparent, trustless transactions, offering a new level of autonomy and efficiency to users and vendors alike. I have a budget of $650 to $850 USD. Please bid within budget.
Title: Experienced Blockchain Developer Needed for Urgent Project We are seeking an expert blockchain developer who can assist us with a time-sensitive project. The ideal candidate should have extensive experience in blockchain development, specifically with the USDT platform. Specific Requirements: - Proficiency in USDT blockchain platform development - Strong understanding of blockchain technology and its applications - Ability to develop smart contracts and decentralized applications (dApps) - Experience in implementing security measures and addressing vulnerabilities in blockchain systems - Familiarity with integrating blockchain solutions into existing systems and platforms Deadline: Although there is no specific deadline for the project, we are looking for a developer who can com...
I need a freelancer to provide detailed instructions on how to set up a hyperledger fabric blockchain with a hyperledger firefly supernode. The detailed steps need to: 1. Create the network using Kaleido 2. Show how to deploy the relevant ERC20 contract chaincode from hyperledger fabric-samples. Including interfact and contract API. hyperledger/fabric-samples: Samples for Hyperledger Fabric () 3. Create three generic user accounts for trading that can buy and sell exchange tokens. 4. Create an admin account that can create new token pools and mint tokens. 5. Show how transaction history can be queried to then be displayed on a front end app 6. Show how current balances can be queried to then be displayed on a front end app 7. Show how market orders and market depth for a token pool ca...
I am looking for a public speaker who can effectively persuade and motivate my audience. The ideal candidate will have experience in delivering speeches that inspire action and create positive change. Requirements: - Strong communication skills and the ability to engage and captivate an audience - Experience in persuasive speaking and motivating individuals or groups - Knowledge of effective speech delivery techniques, including body language and vocal projection - Ability to adapt content to the specific needs and interests of the audience Skills and Experience: - Previous experience as a public speaker, preferably in a similar industry or topic - Proven track record of delivering impactful speeches that have inspired action - Familiarity with the preferred format of keynote presentatio...
I am looking for a developer who can create a blockchain fork of a coin, with the same functionality as the original coin but with our branding. Blockchain Technology: The original coin is using a blockchain technology that is not Ethereum or Bitcoin. Branding Elements: We need to incorporate our logo and color scheme into the website and wallet client. Additionally, we have specific messaging and slogans that need to be included. Modifications: We only require a few changes / new functionality and adjustments to the original coin fork and website Ideal skills and experience: - Strong understanding of blockchain technology and experience with blockchain forks - Proficiency in web development and familiarity with building and customizing websites - Graphic design skills to incorpora...
Music NFT Site - Selling music NFTs with advanced interactivity and specific design ideas - We are looking for a skilled developer to create a music NFT site focused on selling music NFTs. - The main purpose of the site is to provide a platform for artists to sell their music as NFTs. - The site should have advanced interactivity, including live auctions and community features. - We have specific design ideas in mind for the site and would like the developer to incorporate them. - The ideal candidate should have experience in developing NFT platforms and be familiar with blockchain technology. - Strong coding skills in HTML, CSS, and JavaScript are required. - Knowledge of smart contracts and cryptocurrency integration is a plus. - The developer should be able to work closely with our tea...
I am looking for a partnership with skilled developers who can handle the smart contract part of my token project. Here are the details: Blockchain Platform: The smart contract will be deployed on the Ethereum 、BSC platform etc. As long as it can realize the general functions of the token. But it requires the ability to compile the code with the latest version of the compiler. Deadline: There is no specific deadline for the completion of the smart contract. You and your team are responsible for the creation, deployment and safety of tokens. I will be responsible for project promotion, investment and financing, and the development and implementation of physical projects. To realize the actual memory value of the token. If you have the required skills and experience, and are interested ...