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!

Asiakkaamme antoivat 66,071 arvostelussa keskimääräisen arvosanan Blockchain Developers 4.87 / 5 tähteä.
Palkkaa Blockchain Developers

Suodata

Viimeisimmät hakuni
Suodatusperuste:
Budjetti
asti
asti
asti
Tyyppi
Taidot
Kielet
    Työn tila
    37 työtä löytyi, hinnoittelu EUR

    Do the following to the project: - Voting Receipts: Generate and send voting receipts or confirmation emails to voters, giving them proof of their participation. - Add admin login and user login page - Analytics dashboard for admin

    €20 (Avg Bid)
    €20 Keskimäär. tarjous
    3 tarjoukset
    Blockchain and ACH processing app 2 päivää left
    VARMENNETTU

    I am looking for a skilled developer to create a Blockchain and ACH processing app with the following features: - Integration with ACH processing - Wallet functionality - Transaction history Users should be able to seamlessly manage their finances, make payments, and send/receive money using both traditional credit card transactions and blockchain-based digital payments. The app should be available for both iOS and Android platforms. Security is of utmost importance, and the app should implement military-grade security measures to ensure the safety of user data and transactions. Ideal skills and experience for this job include: - Proficiency in Blockchain technology and ACH processing integration - Experience in developing mobile apps for both iOS and Android platfor...

    €8717 (Avg Bid)
    €8717 Keskimäär. tarjous
    32 tarjoukset

    I am looking for a Web3.0 E-Commerce Developer with experience in Javascript to help me build my website. The project requires the following features: - Customizable product options - Integrated payment gateways - AI-powered product recommendations For the development platform or language, I prefer "Other" rather than Ethereum or Solidity. The estimated timeline for this project is more than 4 weeks. Ideal skills and experience for this job include: - Strong proficiency in Javascript - Experience in developing Web3.0 E-Commerce websites - Knowledge of customizable product options and integrated payment gateways - Familiarity with AI-powered product recommendations If you have the required skills and experience, please reach out to me.

    €2144 (Avg Bid)
    €2144 Keskimäär. tarjous
    19 tarjoukset
    flutterflow expert needed 5 päivää left
    VARMENNETTU

    FlutterFlow Expert Needed for Integration with APIs I am looking for a FlutterFlow expert who can help me with integrating APIs into my existing codebase. Specific requirements for the project include: - Seamless integration of APIs into the FlutterFlow project - Ensuring smooth communication and data transfer between the app and the APIs Ideal Skills and Experience: - Expertise in FlutterFlow and Flutter development - Strong knowledge of API integration and handling data - Experience working with existing codebases Timeline: ASAP If you have previous experience with integrating APIs in FlutterFlow projects and are available to start immediately, please apply for this job.

    €172 (Avg Bid)
    €172 Keskimäär. tarjous
    30 tarjoukset

    We're looking for an advanced Solidity developer to help us create a staking contract so that owners of our ERC-20 token can earn interest. We want to understand how much time and effort will be required to develop our new smart contract, thinking about the best way to do this to save cost. Can we use a staking template and customize it? The successful candidate will have had experience building and launching a staking contract and must have an advanced understanding of Solodity-based smart contracts. - Describe your recent experience with similar projects - What frameworks have you worked with?

    €1147 (Avg Bid)
    €1147 Keskimäär. tarjous
    28 tarjoukset

    Project Description: I am looking for a developer to create a Flash USDT which shows in my Wallet..not tradeble nothing required

    €17 - €141
    €17 - €141
    0 tarjoukset

    I am looking for a developer to build a simple crypto payment gateway. The ideal candidate should have experience in developing payment gateways and working with cryptocurrencies. Wallet System - For each client crypto wallet need to be generated Cryptocurrencies Supported: - Custom Tokens in BNB chain Integration: - The payment gateway should be integrated with existing websites and apps to provide deposit and withdraw services with transaction report. Features Required: - Simple deposit and withdraw functionality. - Transactions History If you have experience in building crypto payment gateways and are familiar with the specific requirements mentioned above, please submit your proposal.

    €722 (Avg Bid)
    €722 Keskimäär. tarjous
    17 tarjoukset
    blockchain developer 5 päivää left

    I am searching for a qualified blockchain developer to lead a project on a private network. I have a specific use case and application in mind and anticipate some intermediate-level complexity. The desired blockchain platform is to create a private blockchain platform. If chosen, I expect the developer to be able to work on the project with minimal guidance, and all nuanced aspects with regard to the specific use case would be provided. Close communication throughout the process is key. They should be experienced in creating private blockchain platforms and be able to work efficiently to ensure success.

    €13 / hr (Avg Bid)
    €13 / hr Keskimäär. tarjous
    7 tarjoukset

    We are looking for skilled ui & ux specialists to create the vision, as we build a decentralized exchange for selling tokenized yield paying Real Estate Investments. UI is vital! We want investors to use the benefit of Blockchain & Cryptocurrency seamlessly. The user experience needs to be as simple as buying a share or crypto on Revolut. Yield payment in Fiat and seamless resale of holding. Vision: Our Exchange should like a feel like a high end Commercial Real Estate Portal, split by asset class (e.g. Industrial, Residential, Office, Commercial, Defi etc). There, users can tokenize commercial Real Estate and trade them. The revenue generated by this property is then distributed among the token holders. We need workflows for user onboarding, whitelisting, AML checks, property o...

    €499 (Avg Bid)
    Taattu Salassapitosopimus
    €499
    47 työtä
    uml designer 5 päivää left
    VARMENNETTU

    I'm looking for a UML designer to help me to design diagrams for a blockchain based decentralised application. You should have some knowledge of blockchain and smart contracts , since the application is based on a public blockchain architecture. Primarily, I need system component diagrams. It is for a school project nothing major. The project will involve outlining the individual components of the system and developing a structure which can be assessed and understood more easily. You will need to have a good knowledge of UML diagrams to be able to accurately define this system in a diagram. It's important that you are highly experienced in designing class diagrams and creating diagrams for complex systems. I need someone who is able to work efficiently within the given timel...

    €82 (Avg Bid)
    €82 Keskimäär. tarjous
    9 tarjoukset
    crypto wallet checker from seed phrase 4 päivää left
    VARMENNETTU

    I want a bot that will check wallets from BNB, ETH and Matic network. and check the actual price of the coin in the wallet + get notification if there is any new transaction.

    €13 / hr (Avg Bid)
    €13 / hr Keskimäär. tarjous
    44 tarjoukset
    Flash USDT TRC20 4 päivää left

    We want the script/UI to do the following stuff: - Generate USDT Flash TRC20 Transactions - Define the time that the transaction can remain in the wallet - Define the charges of the blockchain networks for a quick confirmation - VPN and TOR options included with proxy - Option to show whether the transaction gets full confirmation or zero confirmations - Support all wallets - Segwit and legacy address - 100% confirmed transaction - Ability to spend bitcoins on any other address (Segwit address, legacy, Segwit / bch32) - Works with all wallets - Can be transferable wallet to wallet more than 2 times minimum Previous experience are preferred

    €281 (Avg Bid)
    €281 Keskimäär. tarjous
    2 tarjoukset

    Hyperledger fabric consulting and development Level of experience: Expert Application/project type: Banking and Finance (Real Estate) Ongoing support: Yes Project context: Real estate token trading platform using Hyperledger Fabric. 50 real estate properties to be tokenised and traded by buyers/sellers. Owners to receive monthyly payments through the platform. Only approved members with appropriate information provided (e.g. stock market) can trade, it won’t be a public trading platform for compliance reasons. Task 1 – Architecture recommendations (MS word or MS PPT doc providing detailed recommendations on the following) Make recommendations on: Consensus mechanism to be used and why it is preferred compared to other common options on Hyper Ledger Fabric. How many peer ...

    €848 (Avg Bid)
    €848 Keskimäär. tarjous
    15 tarjoukset
    Casino betting site 501 päivää left
    VARMENNETTU

    I'm looking for a website with casino games such as BC.game. Although I don't have a specific list, I do have some general ideas as to what the site should feature. I'm expecting the number of users on this site to be more than 500. My team needs to be able to create a secure website, where all user data and banking information is kept safe. The betting system needs to be fair and accurate. I'm also looking for a custom built software that allows users to easily make transactions using all cryptocurrency and my team should also be able to handle any customer service or support related issues that may arise. As this is my first time venturing into online gambling, I'm open to suggestions as to how the website should be designed and how it should generate revenue.

    €6 / hr (Avg Bid)
    €6 / hr Keskimäär. tarjous
    10 tarjoukset

    I am looking for a developer who can develop the BITCOIN, ETHEREUM Flashing Software in main network (windows based, preferably windows 10), the requirements are mentioned below, 1) The software can perform flash of the BTC and Ethereum, as well as the flashed BTC and Ethereum should be transferable from one wallet to 10 wallets and with confirmation is appreciated. since it is flash btc it must be visible in BTC wallet address for 90 days. There will be no transaction fee while sending from "flash s/w" to "btc wallet" as it will be no confirmations. eg:- If we send from bitcoin flashing s/w to 1 wallet, it must support sending btc to 10 wallets also no problem must arise. It will be displayed till 90 days note:- Screen will have a picklist(eth,btc) to select , "...

    €2094 (Avg Bid)
    €2094 Keskimäär. tarjous
    15 tarjoukset

    We want to build a script or explain a solution for dynamically calculating the buy / sell taxes of any valid ERC20 contract. Essentially user inputs a ERC20 token contract, how would we be able to calculate the buy / sell taxes of that contarct and every other erc20 contract? We want a "one fits all" solution. Skills and Experience: - Proficiency in Solidity programming language - Experience with ERC20 contracts and token creation - Knowledge of advanced security measures for smart contracts

    €36 / hr (Avg Bid)
    €36 / hr Keskimäär. tarjous
    17 tarjoukset

    Hi All, we looking for a developer to create a Mobile recharge, ticket booking, and Vehicle rental service full stack web and app. The platforms I want the web and apps to be developed for are iOS and Android. For multiple country (Sri Lanka, India, Australia, Samoa, Tonga, Cook Island, Fiji Island and plus more countries) Mobile recharge:- () Ticket booking:- BUS Ticket TRAIN Ticket FLIGHT Ticket Vehicle rental:- BUS VAN CAR MOTERBIKE THREE-WHEELER Features: - I have a rough idea of the specific features I want for the web and apps, but I am open to suggestions and further development of the ideas. Timeline: - The timeline for this project is 1-5 months. Ideal Skills and Experience: - Experience in developing full stack web and mobile applications for both iOS and Android platfo...

    €2138 (Avg Bid)
    €2138 Keskimäär. tarjous
    29 tarjoukset

    Hello. We are looking for Blockchain Development companies who are in a position to develop plenty of crypto projects. We are a network where we want to attract new crypto projects for fundraising. For more details, let's have a chat.

    €14 (Avg Bid)
    €14 Keskimäär. tarjous
    6 tarjoukset
    XRP Ledger Full Stack Development. -- 3 4 päivää left
    VARMENNETTU

    I am looking for a skilled full stack developer with expertise in JavaScript and React.js. The purpose of this project is to enhance an existing XRP Ledger App. I am in need of the project to be completed in more than 3 weeks. I'm interested in implementing wallet connect on my app.

    €13 / hr (Avg Bid)
    €13 / hr Keskimäär. tarjous
    58 tarjoukset

    I am looking for a developer who can develop the BITCOIN, ETHEREUM Flashing Software in main network (windows based, preferably windows 10), the requirements are mentioned below, 1) The software can perform flash of the BTC and Ethereum, as well as the flashed BTC and Ethereum should be transferable from one wallet to 10 wallets and with confirmation is appreciated. since it is flash btc it must be visible in BTC wallet address for 90 days. There will be no transaction fee while sending from "flash s/w" to "btc wallet" as it will be no confirmations. eg:- If we send from bitcoin flashing s/w to 1 wallet, it must support sending btc to 10 wallets also no problem must arise. It will be displayed till 90 days note:- Screen will have a picklist(eth,btc) to select , "...

    €3239 (Avg Bid)
    €3239 Keskimäär. tarjous
    16 tarjoukset
    NFT Game guild 3 päivää left

    We are looking for talent who can build NFT games.

    €29 / hr (Avg Bid)
    €29 / hr Keskimäär. tarjous
    37 tarjoukset

    Critical review a web3 developer dashboard. Its rough, looking for your opinion, what you would add, initial stages only

    €30 / hr (Avg Bid)
    Salassapitosopimus
    €30 / hr Keskimäär. tarjous
    10 tarjoukset
    Ethereum Fork 3 päivää left

    I am looking for an experienced developer to work on an Ethereum Fork project. The main objective of the project is to introduce new features to the Ethereum network. Fork Ethereum and develop new blockchain block explorer for block chain DPOS Algorithm Timeline: The project needs to be completed in less than a month, so I am looking for someone who can work efficiently and meet deadlines. Skills and Experience: - Strong understanding of Ethereum blockchain and smart contract development - Experience with forking and modifying existing blockchain networks - Familiarity with Ethereum Virtual Machine (EVM) and Solidity programming language - Knowledge of consensus mechanisms and network protocols - Ability to implement and test new features on a large-scale blockchain network Support:...

    €4931 (Avg Bid)
    €4931 Keskimäär. tarjous
    14 tarjoukset
    Cyclos 4 pro configuration 2 päivää left
    VARMENNETTU

    Project Description: Cyclos 4 Pro Configuration I am seeking a skilled freelancer to assist with the configuration of Cyclos 4 Pro. The specific configurations required for this project include: - Custom branding: I would like to customize the branding elements of Cyclos 4 Pro to align with my organization's visual identity. It is important to note that there are no existing users that need to be migrated to the new configuration. The ideal freelancer for this job would have experience and expertise in configuring Cyclos 4 Pro, with a focus on custom branding. Additionally, the freelancer should be able to work efficiently and deliver results within a week.

    €22 / hr (Avg Bid)
    €22 / hr Keskimäär. tarjous
    35 tarjoukset

    Project Title: Blockchain-based Voting System Description: - We are seeking a highly skilled and experienced developer to create a high-security blockchain-based voting system. - The desired level of security for the voting system is high, ensuring the integrity and confidentiality of the votes. - The client specifically requires the use of the Ethereum blockchain platform for this project. - The system should incorporate both anonymity and transparency features, allowing voters to remain anonymous while ensuring transparency in the voting process. - The ideal candidate should have a strong background in blockchain technologies, particularly with experience in developing on the Ethereum platform. - Familiarity with smart contracts and cryptography is also highly desirable. - The develope...

    €144 (Avg Bid)
    €144 Keskimäär. tarjous
    16 tarjoukset

    I have a project for you - to rewrite my Node.js app of about 500 lines into Rust. The purpose of the rewrite is to improve performance, so the entire code needs to be rewritten. I need this done within a week, so I am hoping for someone with expertise and experience in both Node.js and Rust who can complete the project quickly. If you're up for the challenge, please reach out and let me know! Please no time-wasters! Idk why, but people are just asking for the code when disappear :/ pretty annoying.

    €214 (Avg Bid)
    €214 Keskimäär. tarjous
    19 tarjoukset
    Programmer 1 päivä left
    VARMENNETTU

    Python Programmer Needed for Advanced Project High level view - creating a market for buying/selling residential real estate. Skills and Experience: - Expertise in Python programming language - Strong understanding of advanced programming concepts and techniques - Experience working on complex projects - Familiarity with data structures, algorithms, and software development principles Project Details: - The exact timeline for completing the project will be determined by the skill of the programmer. - Looking to work with an individual programmer, not a group. - Experience or knowledge of real estate transaction management strongly desired. - Experience or knowledge of blockchain programming is strongly desired. - Must be willing to sign an Non-Disclosure Agreement prior t...

    €2813 - €4689
    Sinetöity Salassapitosopimus
    €2813 - €4689
    37 tarjoukset

    I am looking for a skilled developer to create a SWAP option for our new token v.s USDT (ERC-20). The purpose of this SWAP option is to attract new investors to our token. Project Requirements: - Develop a SWAP option that allows users to exchange our token for USDT. - The SWAP option should be built on the ERC-20 blockchain. - Implement necessary security measures to ensure the safety of the SWAP process. - The SWAP option should be user-friendly and intuitive. Ideal Skills and Experience: - Proficiency in blockchain development and smart contracts. - Experience with ERC-20 token development and integration. - Knowledge of liquidity pools and decentralized exchanges. - Strong understanding of security protocols and best practices. Timeline: - The completion of this proj...

    €1624 (Avg Bid)
    €1624 Keskimäär. tarjous
    21 tarjoukset
    Create smart contract 1 päivä left
    VARMENNETTU

    Smart Contract Creation on Ethereum 0xb69edbD0527F448b650676C7085E15a7422791c5 Same contract on eth Name change total supply change - 10M Fixed tax Tax not modifiable Experience with stealth launch HTML experience

    €456 (Avg Bid)
    €456 Keskimäär. tarjous
    52 tarjoukset

    Buscamos a un programador muy especializado en el trabajo con startups experto en realizar plugins personalizados en wordpress experto en php. Lo buscamos para continuar nuestro mvp y que se quede con nosotros a largo plazo. Con conocimientos en desarrollo de apps híbridas con acoplamiento con wordpress. Se valoran conocimientos y trabajos con blockchain.

    €592 (Avg Bid)
    €592 Keskimäär. tarjous
    30 tarjoukset

    1. User Authentication: • Web3 Login: Users can log in securely using their Web3 wallet, ensuring a decentralized and trustless experience. • Gmail Login: For added convenience, users can also log in using their Gmail accounts. 2. Sports cricket Match Listings: • The platform will offer a comprehensive list of sports matches across various categories, ensuring a diverse betting experience. 3. Live Score Integration: • Real-time score updates will be sourced through APIs, providing users with the latest match information. 4. Betting Functionality: • Users can place bets with fixed amounts in BTC, ETH, or USDT, ensuring simplicity and consistency in wagering. 5. Currency Support: • The platform will support multiple cryptocurrencies, including BTC, ET...

    €960 (Avg Bid)
    €960 Keskimäär. tarjous
    10 tarjoukset

    We are looking for a skilled YouTube videographer (native English speaking, no accent) to both create and narrate longer form videos (15+ min) about different stories and subjects within crypto, blockchain and web3. Skills and Experience Required: - Proficiency in video editing software such as Adobe Premiere Pro or Final Cut Pro - Experience with complex effects and animation to create visually captivating videos - Ability to incorporate color grading and sound design to enhance the overall quality of the videos - Attention to detail and ability to meet deadlines Additional Information: - Previous experience in managing and growing YouTube channels - You will need a good level of understanding cryptocurrencies and blockchain technology to run our crypto YouTube channel. Channels we dr...

    €34 / hr (Avg Bid)
    €34 / hr Keskimäär. tarjous
    15 tarjoukset

    I am looking for a skilled developer to create a betting website using Ethereum Blockchain. The ideal candidate should have experience in developing similar projects and be familiar with Ethereum Blockchain technology. Betting Options: - The website will primarily offer sports betting options, allowing users to place bets on various sporting events. Website Features: - I am open to suggestions and would like the developer to propose specific features and functionalities for the website. - The developer should have a strong understanding of the betting industry and be able to provide recommendations for innovative and user-friendly features. Design Assistance: - I am in need of full design assistance for the website. - The developer should have expertise in web design and be able to crea...

    €718 (Avg Bid)
    €718 Keskimäär. tarjous
    26 tarjoukset
    Build me token based on bsc 10 tuntia left
    VARMENNETTU

    I am looking for a skilled developer who can build a utility token for a specific platform/service on the Binance Smart Chain (BSC). The purpose of this token is to serve as a utility within our platform. Key Requirements: - The token should have a reflection feature, allowing holders to earn rewards based on their holdings. - We are also interested in implementing a burn mechanism to decrease the token supply over time. - Additionally, an automatic LP (liquidity pool) feature should be included to ensure the token's liquidity. Timeline: - We have an urgent need for this project and require it to be completed within 1 hour. Ideal Skills and Experience: - Experience in developing tokens on the Binance Smart Chain (BSC) and familiarity with the associated tools and technologies. - Pr...

    €9 / hr (Avg Bid)
    €9 / hr Keskimäär. tarjous
    13 tarjoukset
    Fix Bep20 token contract 10 tuntia left
    VARMENNETTU

    I am having an issue with a Bep20 token contract not functioning as intended. It collects tax on sell, but it should also collect tax when buying tokens. I have the source code for the token contract, I just need the issue fixed.

    €24 (Avg Bid)
    €24 Keskimäär. tarjous
    6 tarjoukset
    NFT Marketing/Sales agent 9 tuntia left
    VARMENNETTU

    Description Description: Are you an NFT marketing and sales genius? Do you have a proven track record of selling NFTs like hotcakes? If so, we want YOU on our team! About Us: We're a cutting-edge NFT project called Peacekeepers: Global Gladiators. Our NFT collection is taking the world by storm, featuring stunning gladiator-themed digital collectibles with unique perks. We're not just about art; we're building a community! What We're Looking For: We're seeking a talented NFT marketing and sales expert to join our journey. You should have: ✅ Proven experience in successfully marketing and selling NFTs. ✅ A deep understanding of the NFT market, trends, and strategies. ✅ Creativity to develop unique marketing campaigns. ✅ A passion for digital collectibles and bl...

    €126 (Avg Bid)
    €126 Keskimäär. tarjous
    13 tarjoukset

    I am looking for a blockchain integration developer who can seamlessly integrate Tron blockchain with our front-end system and smart contract. Skills and experience required: - Proficiency in Tron blockchain platform and its integration with front-end systems - Strong understanding of smart contracts and their implementation - Experience in creating and deploying smart contracts on the Tron blockchain - Expertise in transaction verification and ensuring the security and integrity of the blockchain network - Knowledge of token creation and other functionalities of smart contracts is a plus The main functionality we are seeking from the smart contract integration is transaction verification. We want to ensure that all transactions on the Tron blockchain are securely and accurately verifie...

    €3 / hr (Avg Bid)
    €3 / hr Keskimäär. tarjous
    11 tarjoukset

    Sinulle suositellut artikkelit

    If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
    11 MIN READ
    Learn how to find and work with a top-rated Google Chrome Developer for your project today!
    15 MIN READ
    Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.
    15 MIN READ