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!From 70,959 reviews, clients rate our Blockchain Developers 4.81 out of 5 stars.
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I have a bep20 token sell smart contract, and I want that user to buy my bep20 token with USDT, I have set 1 token to cost 1 USDT, but when I deploy that contract and test then he still takes payment in BNB, So you change that BNB to USDT
My startup project requires a fullstack developer with expertise in React, Node.js and blockchain knowledge. The project is of considerable size and scope and is expected to take more than a month to complete. I am open to suggestions on the specific tech requirements, however I am confident that with the right individual developer on board the project can be completed swiftly and to the highest standard. I will share the description to the right candidate. Best Regards
Hello everyone, this is Giacomo from Astrid. We are a consulting company specializing in developing hybrid customized solutions by combining the power of blockchain and Artificial Intelligence. There are 5 team memebers, including 2 blockchain developers specializing in Solidity and all EVMs tasks-related, a Data Analyst (me) and one Data Scientists with excellent academic backgrounds (if needed, I can share social profiles etc...). The team is well established. Our technology is valued by many big players, in fact we are official builders of Ocean and official partners of Flux. We already have a good looking website: , twitter, github and medium (still not really active there). We specialize in the following fields: Blockchain Development: development of any kind of smart contract Bl...
Responsibilities: Speaking at international events dedicated to the blockchain industry and cryptocurrency as a keynote speaker or panelist. Delivering presentations and speeches at these events. Assisting in developing and preparing materials for presentations and speeches. Providing consultation to the company's clients and partners on matters related to the blockchain industry and cryptocurrency. Maintaining relationships with key players in the blockchain industry and cryptocurrency. Requirements: Experience in speaking at international events. In-depth knowledge and experience in the blockchain industry and cryptocurrency. Excellent communication skills. English language proficiency at a level sufficient for speaking at international events. Willingness to travel frequently. ...
I am looking to hire an experienced coder to fix an existing smartcontract written in Solidity and to audit and security check it. I already have the code available to be fixed, but I also want both manual and automated audits to be done afterwards to ensure its security. The successful freelancer would need to be a professional with broad knowledge and experience in coding Solidity smartcontracts, performing both manual and automated audits, and identifying and fixing any security threats. This project is time-sensitive and therefore I am looking for someone who can start right away and provide me with timely results. When I run on test enviroment - its minting double and mints nft even after there is a error. Also looking for other recomendations and fixes with audit
Hi, I'm looking for a freelancer to develop a cryptocurrency gambling game for me. It will be a web-based game and the type of game we want is a completely custom game. It should also include a system for customizing bet amounts. Similar layout and functionality to Just a different game CONCEPT Talk more in detail If you have the necessary experience to create a cryptocurrency gambling game and are confident that you can deliver a quality product in a timely fashion, then please do not hesitate to get in touch. I look forward to working with you.
Do you understand security and can work on security breaches and do you have experience, that's great
The feature would involve creating a new smart contract or modifying the existing one to enable the storage of shipping details for orders. The developer would need to integrate this smart contract with the React app to store and retrieve shipping details. Additionally, they would also need to ensure that vendors have access to the shipping details of their orders. As the React app is built to run on IPFS and Ethereum blockchain, the developer would need to have a strong understanding of these technologies. They should also have experience in building smart contracts and integrating them with React apps. You need to fix it via anydesk on my laptop
Need a ERC20 Token to be deployed. To Do : Include Buy/Sell Tax Deploy Token Renounce Token Help With LP Burn More points will be discussed.
We seek a knowledgeable web3/blockchain generalist to write good, complete, thorough, well-researched project plans/proposals/estimates for projects to develop and deploy blockchains, cryptocurrencies, Dapps, DeFi apps, CEXs, DEXs, NFTs, and other components of the web3 ecosystem. (** no agencies please **) You Must: - Have demonstrable prior experience developing web3/blockchain projects. - Be able to write and speak in English clearly and fluently. - Be willing to sign an NDA (at a later stage in the interview process). - Be willing to use the freelancer.com time tracker. If all of the above describe you accurately, we would love to hear from you. To be considered, you **must** include answers to the following questions in your response: a) Are you a developer knowledgeable ...
Blockchain development -Evaluate, Analyse and target weakness in cryptographic security system and algorithms. Investigate, research and test new cryptology theories & applications. Develop and update methods for efficient handling of Cryptic process -Knowledge of cryptography/blockchain technology is required -Provide investigative/analytic support for extremely complex, technical, and highly sensitive investigations and initiatives pertaining to cryptography -Prepare in-depth summaries of data from extensive research and analysis -Work with law enforcement bodies all around the world to achieve cooperation and help in solving international investigations and fraud cases. - Work with high level blockchain investigation tools -Knowledge of and/or passion for blockchain/cryptocu...
I'm looking for somebody or a team who can build Play To Earn NFT game projects. I want to build P2E game like this. Including : A really beautifull dapp / Working smart contracts. You need to have experience building P2E NFT game projects. Please leave your past P2E projects links in your proposal. I will auto ignore the auto bids that not include links. I don't care if you use gpt or anything that will help you achieve your mission the end product must be flawless. Most important : Communication we'll have to call each other until the end. I didn't put the budget for this one because honestly if you feel that you'r suited for the job i'll adapt my budget.
I need a full-time freelancer ONLY! Stack: Flutter Knowledge: Dart, Blockchain Budget: $450. Payment in 3installments. Duration: 21days + 7days testing Task: Fix all issues in the app and make it perfect for transactions and upload to Play Store and App Store. Here is the task sheet:
I need a backend developer + blockchain.
looking for react js and front end dev to work on our wallet project
I am seeking an experienced freelancer to create a secure and reliable mining pool for Kaspa, Dynex, Ergo, Monero, and Litecoin. I have already set up a VPS and domain, and the operating system is Ubuntu 18.04, which can be upgraded to 20.04 if necessary. The mining pool should have a user-friendly interface and a clear system, similar to , , or The mining pool should possess the following features: A user-friendly interface for miners A secure payment system Mining statistics and monitoring DDOS protection An automatic payout system An SSL certificate My budget for this project is $600 USD, but I am willing to negotiate. If you have experience in creating mining pools and can deliver a high-quality product within my budget and timeline, please submit your proposal along with your rele...
Hello I have front end dev and nft artist in my team for this project. Looking to add someone experienced with creating backend. MERN and solidity experience is a must.
Blockchain Developer required for Project to create Digital Currency, Don't ping me if not having experience on digital currency.
I'm looking for a talented developer to write a blockchain smart contract that meets my requirements. I have selected the Solidity programming language for the task, as I think it is best suited for this purpose. The smart contract may potentially need to interact with other smart contracts in the future, though we're not sure yet. The developer will also be responsible for auditing the code to ensure everything is running correctly. If you have experience in this area and think you can help, I'd love to hear from you! Scenario: We are going to present a classified project to a potential investor or partner. To make sure the presentation will be confidential between the involved participants, I want the attendee to sign an NDA, prior to the meeting or presentation. To m...
Hi I need a dev that can create and deploy blockchain hyperledger fabric applications. Install the development environment of hyperledger fabric on docker and Kubernetes. Creating attractive web applications in hyperledger fabric Backend using Nodejs. Enable state database for storing blockchain records. File storage using IPFS. Writing smart contracts on Go lang.
I'm in need of a creative person to help me with a project for 1-3 months. I'm hoping to find somebody who understands my vision and the work that's required of them. I have a specific job description in mind based on my needs and expect that person to complete the task within the discussed timeframe. I'm looking for somebody who is willing to think outside the box and deliver quality results. The successful candidate should be reliable, hard-working and have an eye for detail. This person should also be able to work independently, under pressure and be good at problem solving. If this position sounds like a good fit for your skills and experience, please do not hesitate to reach out. I am very excited to hear what creative ideas you may have to offer to help make thi...
Hola! Necesito una persona o un equipo disponible para diseñar un Smart Contract, que funcione en la red de Ethereum (ERC - 20, Solidity, Web3). Debe ser una persona con experiencia trabajando con este tipo de lenguajes y creación de este tipo de contratos inteligentes. Hi! I need a person or a team available to design a Smart Contract, running on Ethereum network (ERC - 20, Solidity, Web3). Must be a person with experience working with this kind of languages and creation of this kind of smart contracts.
I am looking for an experienced developer to help me build a slot game using Chainlink’s Verifiable Randomness Function (VRF). Requiered Knowledge: Solidity, Smart Contracts, React, Chaink link VRF,
An unskilled dev sent me a source code that works except for the remove liquidity part. I'm looking for someone competent enough to solve this issue for me and help me host the dex.
Hi there, I am looking for someone with the following skill: - Near blockchain - Smart contract development (near blockchain) - Nodejs - Reactjs or similar DM me for more information Thanks Fed
I'm looking for an experienced individual to audit a smart contract built on the Ethereum blockchain. The audit must include both a security assessment as well as a functionality review. I already have existing documentation that will be provided to the auditing contractor. This project requires somebody with a broad knowledge of blockchain technology and practical experience in Ethereum smart contract development. If you fit these criteria, please apply with confidence!
Looking for anyone who can help setup Validator Nodes on multiple Blockchain Testnets. Ping me if you know what you are doing. VPS setup preferred.
I am looking to hire a freelancer to develop a small project involving MetaMask integration. The project requires expertise in smart contract development and I'm open to any programming languages. With my limited knowledge, I need someone experienced and reliable to help me complete the project to a high standard.
The code to rewrite is here: Please show us your github profile (or similar) while applying to let us evaluate your understanding of blockchain.
We need a marketplace multichain oriented for a niche type. dot names
experienced developer to connect ETHEREUM / GETH NODE to my PC
experienced developer to connect ETHEREUM / GETH NODE to my PC
i have a wordpress wcfm crypto market place that host wallets via express.js. im looking for someone knowledgeable that can show me an in-site or 3rd party payment processing that will allow users to purchase crypto for their hosted wallets that will also pay my site a 1.75% commission when it is purchased. so far everyone is telling me i need to keep a hot wallet with hundreds of thousands of crypto in it, i dont want this method. i need someone who can tell me a better way. i will have clients that wants to purchase $500-$10,000 at a time. process: 1) user join site 2) wallets are auto created 3) in their dashboard there is already a buy link 4)user click buy, chooses the crypto, type in amount and click purchase 5) this can be a popup or take them to third party site ( i dont care)...
I want to a simple and secure project that have function. 1. Tron Auto withdrawal and request From tron link or tronweb type. 2. all transactions are showing in tronscan by searching Company name. i have permanent work for good devlopers.
Hello. We have a long term project which it apart from many stages. We are looking for freelancer who will corporate with us and start working on first part of project. If the corporation goes well, we will continue with the same freelancer for second part. For now, we are looking for creating a trading betting competition (simple way) - staking (we will give logic) - and token (we will give tokenomics) - wallet implementations (MetaMask -Coinbase - trust Wallet) Saying that means we need smart contract where will provide the above services and Admin panel. Also we require a design where we will add all the services, even those are upcoming. Looking to hear from you soon. Please pay attention to the budget and bit only if you agree, according to requirements.
I am looking for a freelancer to help me in adding my coin to Yiimp pool. I already tried bur faced some error that needs to be resolved.
hello I have a digital currency and I want to distribute it to users through a mobile application ,See the image below I want to distribute coins to users automatically ,By linking the currency wallet to the mobile application and distribute it to users Can you do this work
Just need to post to blockchain like WordProof Timestamp or WPSmartContracts but would need a custom solution. possible continues future profits. need to sign an NDA contract for a meeting!
Rebase token daap like titano Rebase toekn Fixed apy 365% daily 1% compound intrest Rebase frequency 86400 sec or 1 day Lottery module
I currently have a Songbird Node which we can use for it. I need to just update it automatically with a cronjob
Necesito crear token con las siguientes características, Suministro El precio será de 0.8 inicialmente, Este token en particular cada vez que los usuarios quieran comprarlo venderlo o transferirlo el usuario deberá pagar 1% de comisiones que irá a un contrato fondo de garantía.
Desarrollaremos una aplicación móvil tanto para Android como IOS: La cual debe tener una interfaz de usuario agradable y llamativa pero a la vez sencilla y fácil de usar teniendo en cuenta que debe poder procesar múltiples partidas y registro de datos al mismo tiempo para que cuando muchas personas ingresen no sé paralice o se caiga o se desconecten las partidas. La operación de la plataforma consistirá en lo siguiente: Debe permitir registrarse esto podría ser con Google, facebook o en caso de que no sea complejo un formulario. Debe poder permitir vincular una Wallet en la cual los usuarios podrán depositar Criptomonedas en este caso USDT es por ello que se deberá usar la Blockchain de Tron, también debemos d...
La Idea es partir de este ejemplo como prototipo El funcionamiento sería el siguiente: Los usuarios se registrarían en el sitio Web Una vez registrados podrán realizar depósitos en este caso a una wallet de la plataforma y se les acreditaría el saldo virtual en la web, con este saldo podrían ir entonces y escoger un juego y de acuerdo al costo de la entrada poder iniciar una partida, dónde el sistema los emparejara con otros jugadores que estén deseando iniciar una partida. Una vez obtengan un beneficio podrían hacer solicitudes de retiros. Los depósitos podrían ser en cualquier criptomoneda ejemplo BTC, ETH u otro pero la misma web debería dar la opción de convertirse en USDT para poder refl...