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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!De 64,772 opiniones, los clientes califican nuestro Blockchain Developers 4.84 de un total de 5 estrellas.
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trabajos freelance Requerimientos: Tenemos: .Parámetros (Códigos) .Plan de Negoció .Hoja de Ruta .Viabilidad . Economía Sustentable, Autónoma y Automática .Regulaciones DAO, Criptomonedas y NFT .Branding y Marketing Buscamos: .Programador .Diseñar y Ejecutar Smart Contract .Prueba del Smart Contract en la Testnet .Diseño y Conexión de una Web para conectar al Smart Contract Gracias. Saludos Cordiale
Tenemos: .Parámetros (Códigos) .Plan de Negoció .Hoja de Ruta .Viabilidad . Economía Sustentable, Autónoma y Automática .Regulaciones DAO, Criptomonedas y NFT .Branding y Marketing Buscamos: .Programador .Diseñar y Ejecutar Smart Contract .Prueba del Smart Contract en la Testnet .Diseño y Conexión de una Web para conectar al Smart Contract Gracias. Saludos Cordiales. Rafael
I am looking for senior solana developer to update current NFT web site and smart contract. I need only talent solana developer to continue this project. I will share current project github repo for right candidates. You should show your past experience about Solana contract deploy and Dapp history. Thank you
Need 3 developers Interactive Knowledge Game is looking cryptocurrency engineer who can collaborate coin price prediction project. We our open source can be found at You should be passed test progress on this repo. Answer the followings. 1. Run the project and tell me which exchange platform this repo support. 2. To predict whether each coin price will be increased or decreased, how can you solve this task. Send me detailed answer to be selected.
I am seeking a freelancer who can integrate blockchain technology into both my document management system and property management. The ideal candidate should have experience in working with Hyperledger, as this is my preferred blockchain platform. The project requires the following features and functionalities: - Identity management - Smart contracts - Tokenization The successful candidate should be able to deliver a seamless integration of blockchain technology into my existing systems, ensuring the security and accuracy of all data. Strong communication skills and attention to detail are also essential.
Hello I need somone who understand Blockchain to create a mev bot for me Sniperbot Sandwich bot
Are you an experienced Python developer looking for a challenging and rewarding project? I'm looking to hire someone with the right skill set to help me create a project using Python. The project’s purpose is web development, so you must have knowledge and expertise in this area. The desired timeline for the project is 2-4 weeks, so you need to be able to commit to this timeframe. I am open to recommendations as to which frameworks or libraries to use, so if you have specific suggestions please let me know. But I am ultimately flexible on this and open to what you think might work best given the project details. If this project interests you, please get in touch. I am confident you will find this project an exciting opportunity to utilize your Python knowledge to develop some...
I am looking for a skilled developer to create a PWA reward earning app/site with cryptocurrency token payment. The ideal candidate should have experience in developing PWA apps and integrating cryptocurrency payment systems. Cryptocurrency: The payment system should support the use of "Other" cryptocurrencies, as specified by the client. A bep20 token will be used. But site should be able to send and receive usdt too. Swap between usdt and BNB and bep20 token. Rewards: Users will earn rewards by completing surveys, watching ads, playing games, visiting websites and watching videos. The app/site should be designed to make it easy for users to navigate and complete the surveys. Users can also pay of advertising and others with bep20 token on the app. Target Audience: anyone a...
hi good day, I need to work on project healthcare with blockchain then I need to write an algorithm for it, and a special tool for simulate and compare with some other system (project) depend on same parameters like(speed, delay time, price, power , scalability, throughput) can u do it please?
Join our groundbreaking project and be part of the future of subscription-based businesses! We are seeking a talented and passionate developer to help us build an innovative subscription swap platform that will disrupt the industry. With cutting-edge technologies like blockchain, smart contracts, and tokens, we are introducing a game-changing concept that allows users to seamlessly and securely exchange access to their subscriptions. Strong experience in blockchain development and integration, with expertise in platforms such as Ethereum or Hyperledger. Proficiency in smart contract development and deployment using Solidity or similar programming languages. Familiarity with tokenization and experience in building token-based systems. In-depth understanding of cryptographic techniques and ...
# Liquity Arbitrage This project will perform an arbitrage of LUSD/ETH pair. This will be done by 2 steps 1. Swap ETH for LUSD at uniswap 2. Redeem LUSD for ETH at liquity # Design The project has two main components , one is the node server and another is the smart contract. The node server is responsible for keeping a track of the prices of ETH at chainlink and at uniswap. When we notice a price difference where there is a possiblity of a profit from arbitrage it will trigger the smart contract to perform the arbitrage between uniswap and liquity smart contracts. ### How is the amount of eth to be used for the arbitrage calculated ? We have three restrictions in determining the ETH that can be used for the arbitrage. 1) The ETH present in the arbitragers wallet 2) The redeemable...
Looking for a blockchain expert to launch an Ethereum platform. We need a complete project launch and are open to consultation. Our desired timeline for project completion is more than 4 weeks. The ideal candidate should have experience with Ethereum and blockchain technology, as well as a strong understanding of smart contracts and decentralized applications. Knowledge of security protocols and experience with launching blockchain platforms is also preferred.
I am looking for a freelancer to help me create a music site and NFT marketplace with the main goal of selling music and NFTs. I have no preference for a specific platform or technology, so I am open to suggestions. The ideal freelancer should have experience in creating digital marketplaces and integrating payment systems. The music site and NFT marketplace should include artist profiles and social features to help promote artists and their music to potential buyers. We want a site like (). Additionally, it should have advanced search and filtering capabilities to help buyers find the music and NFTs they are looking for. Customizable NFT designs and templates would also be a plus. Overall, my goal is to create a unique and engaging digital music experience that allows artists to sel...
I am looking for someone to deploy a HUFF contract to ETH mainnet. I have already created the contract and it has been tested and audited. However, I need full assistance with deployment. You probably need to use something like Foundry Huff and Huff deployer. Ideal skills and experience: - Experience with deploying contracts to ETH mainnet - Knowledge of HUFF contracts - Strong understanding of smart contracts and blockchain technology - Attention to detail and ability to troubleshoot issues during deployment - Foundry Huff y Huff Deployer Please provide examples of previous successful contract deployments and any relevant certifications or qualifications.
I would like to create a front-running sandwich bot based on Ethereum Block Chain with different contracts address that can be entered (Metamask, eth network). (Uniswap v2&v3) The BOT would essentially: - Scan the blockchain and find transactions based on certain criteria (pending on the block aka mempool). - Front-run (specific trade volumes, slippage and gas price) transactions by placing a buy order on the same block at the same time by setting a higher gas price automatically. - and buy up only to the maximum value (I set it manually (ETH)) that I have decided to trade and when only has x % (I set it manually) profit by calculating through the pending transaction amount(impact that it has his/her investment) & gas fees selected automatically & slippage (buy&...
i want to develop betting platform with web3 services.
We need to register a .SOL domains using an api. You will implements only two operations: a) Register .SOL DOMAIN: Boolean result = registerSOLDomain(String domain_sol, String phantom_Wallet_private_key). result = true if the domain was registered or false if not (show error). b) Transfer .SOL Domain from a wallet to another wallet: Boolean result = transferSOLDomain(String domain_sol, String phantom_Wallet_source_private_key, String phantomWalletDestinatiob). result = true if the domain was registered or false if not (show error). To implement this project only free resources can be used .That is, we will not use features like quicknode, infura etc. It is all. We already know which domains we want to register and we know which domains are available.
Need to create website that can accept both fiat and crypto payments for NFTs that will be used to raise money for homeless military veterans. The website needs to be Web3 capable and preferrably utilize a blockchain with low gas fees like Polygon or Binance. Users would need to be able to connect their crypto wallets (i.e. Trust Wallet, Metamask, etc.) to the website to purchase the NFT representing the homeless veteran being sponsored. Admin portal needs to be created in order to manage transacations and overall site. I have a mock design for the NFT, but would be opened to a 3D version of the NFT to be created as part of this project. Would also need a token created called the HERO token that will be used as a reward for those who buy a NFT that would be placed in a crypto/staking ...
I am looking for a skilled freelancer to assist me with a personal project involving flashing blockchain transactions. The ideal candidate should have experience in working with blockchain technology and be able to provide past work examples showcasing their skills. The project needs to be completed ASAP, so prompt delivery is essential. Please contact for more details, the payment term would be one time
"Creating a Wallet for Bitcoin Fork" I am looking for a blockchain developer to help fork a wallet for Bitcoin Fork crypto. The wallet will be used for personal use. I am looking for the following: - Support for Bitcoin Fork - Advanced security features such as biometric authentication and multisig - User-friendly interface - Ability to send and receive cryptocurrency easily Ideal Skills and Experience: - Experience in developing cryptocurrency wallets - Knowledge of native cryptocurrency - Proficiency in security measures and encryption - Strong coding skills in languages such as Python, Java, or C++
Need Web3 expert to connect ethereum wallet and application.
I am looking for a freelance developer to create a Discord bot for my ICO whitelist. The bot should have the capability to handle custom commands and provide a seamless user experience. My ideal candidate should have experience in developing Discord bots and should be proficient in coding languages such as Python. The flow is simple: If a user types a command like !whitelist in my discord bot it will notify them they have been added to our whitelist. this information should be saved to a CSV file or something similar so I have a log of all whitelisted people. Features: - Discord bot for ICO whitelist - Custom commands - User-friendly interface Skills: - Discord bot development - Proficient in Python If you have experience in developing similar bots, please submit your bid and let...
import cold wallet address and send specific tokens from connected wallet after connected wallet sends specific tokens to cold wallet. Connect to the Blockchain Network: You'll need to establish a connection to the blockchain network on which the token resides. This typically involves using a library or SDK provided by the blockchain platform. Load Cold Wallet: Import or load the cold wallet's private key or keystore file, depending on the format supported by the blockchain platform you're using. This step grants access to the wallet's funds. Retrieve Token Balance: Use the blockchain platform's API or library functions to retrieve the token balance associated with the cold wallet. This step ensures that the wallet has sufficient funds to initiate the transfer. ...
Hello, We have front end coded: Connects wallet, checks both USDT and PLS on pulsechain wallet balances and prints to screen. Also prints current PLS to screen and has conneted wallet ID. We need blockchain code: That upon clicking swap button on html page will take USDT entered from connected wallet and send to USDT cold wallet using gas PLS from different cold wallet. It will then send PLS amount from PLS cold walle to connected meta mask wallet.
I am looking for a developer who can create a Uniswap fork on the Binance Smart Chain and integrate it with UNISWAP API contracts. We also require a custom UI that matches our branding. Here are the ideal skills and experience we are looking for: - Experience with Binance Smart Chain / Ethereum Blockchain and Uniswap - Proficient in API integration - Familiarity with UI/UX design and branding - Knowledge of smart contract development - Attention to detail and ability to deliver projects on time Would like it to be similar to as they have a full Uniswap Integration. Please note that we do not require a custom token for the project.
Only XRPL experience please, USA freelancers preffered. Full development, front end back end smart contract develoment Full service, wallet, onramp offramp and exchange Please mention full bid amount and timeframe with an example of work done
I am seeking a developer who can modify my existing blockchain project on Ethereum. The modifications will involve both front-end and back-end changes to enable sending submitted and task completed messages to registered mobile numbers. The purpose of these messages is to confirm the completion of tasks. The ideal candidate should have experience working with Ethereum and be proficient in both front-end and back-end development.
Must show progress daily!!! I am looking for a skilled blockchain and UI developer to help create a smart contract for a swap and pool sales contract. The ideal candidate will have experience with Polygon and ERC-20 tokens. We are seeking a smart contract developer to create a Swap and Pool Sales Contract on the Polygon network using already deployed contracts for tokens. Ideally candidate can integrate and build UI. The tokens used for this contract are SC, SN, and SK reward token, and the staking contracts include LV1POS = 19SC:1SN, LV2POS = 19SC:2SN, LV3POS = 19SC:3SN, LV4POS = 19SC:4SN The flow of the swap is as follows: 1. Liquidity providers deposit any of the 4 POS into the swap pool. 2. The pool contract unstakes the POS, leaving the SC and SN tokens loose in the ...
I need Need Crypto Bot Developer for Binance future trade. The bot is used for future trading and only takes sell orders. Bot First check highest price of coin in future trade platform in 4 hrs, Example if that coin highest price in last 4 hrs $1000 then bot take sell order
my site is it is a wordpress theme that connects to a server folder on my dedicated server. you may sign up for the site, but no i wont give you admin access until you accept job, because the server actually creates private and public keys and holds current user information. 1) how ever the previously developer coded in the functions to connect to the server is causing the server to use too much resources, this needs to be fixed 2) the server is programmed for shib inu, apecoin, bitcoin, xrp, ethereum... i need you to be able to make sure its coded currectly in the server for receive, transfer, balance, etc 3) on the wordpress side, its already 80% coded for internal transfer (user to userr) and external ( sending to sites like coinbase, etc) i need this fixed my site is a wcfm mar...