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!

78,712 értékelés alapján az ügyfelek 4.84 / 5 csillagot adtak Blockchain Developers szabadúszónknak.
Alkalmazza Blockchain Developers szabadúszót

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    63 munka, árazás ebben: EUR

    We need crypto wallet with full source code. requirement 1. Custodial ( Centralized) with two level layer of user and admin 2. ordinary crypto wallet with multi factor authentication, such as mobile phone number, e-mail address, and authenticator app. 3. admin can disable users sending coins. 4. ERC-20 coins 5. deadline 4th of May 6. full source code open 7. deploy on our client's server

    €2911 (Avg Bid)
    €2911 licitátlag
    16 árajánlat

    Task: • Analyze six blockchain transaction records (2 SOL, 2 BTC, 2 ETH) • Identify the perpetrators • Compile evidence for law enforcement Requirements: • In-depth knowledge of blockchain technology and cryptocurrencies • Experience in analyzing blockchain transactions • Ability to clearly communicate complex matters

    €17 / hr (Avg Bid)
    €17 / hr licitátlag
    11 árajánlat

    For this project, I need a highly skilled game developer with extensive knowledge and experience in Solana blockchain technology. This project entails creating a platform game with a gambling mechanic. Key Requirements: - Development of a small platform game with gambling mechanics. - The central mechanic of the game should revolve around 'Winning Virtual Currency or Tokens'. - The virtual currency or tokens won in the game should have real-world value in the form of cryptocurrency. - Familiarity with Solana blockchain technology is a must, for the integration of the virtual currency. Ideal Abilities: - Excellent skills in blockchain technology, particularly Solana. - Proven track record in game development, specifically platform games with incorporated gambling mechanics. -...

    €873 (Avg Bid)
    €873 licitátlag
    58 árajánlat

    I want to recreate the website using different data sources and a new design. The key features I need are: - Live Data Updates: The website should be able to update data in real time. - Social Sharing Buttons: The site should have easy-to-use social sharing options. As for the design, I am open to suggestions but most importantly, I need it to be user friendly and visually appealing. Ideally, you should have the following skills and experience: - Proficiency in web development - Experience in working with live data sources - Design skills, particularly in user interface and user experience Please provide examples of similar projects you've worked on in the past when you apply.

    €299 (Avg Bid)
    €299 licitátlag
    52 árajánlat

    I'm looking for skilled and experienced freelancers across different domains - web development, graphic design, content writing, and more. Your past work and detailed project proposals will be valuable in your application. Please reach out if you are interested in working with me. Thank you.

    €84 (Avg Bid)
    €84 licitátlag
    16 árajánlat

    As a client, I'm seeking the assistance of an experienced blockchain developer to help with the creation of a decentralized finance (DeFi) platform on Solana SPL Token. Key Project Requirements: - Creation of a functional, robust DeFi platform. - I am open with regard to the specific features of the platform since this was not specified during our discussions. The abilities of providing liquidity pools, yield farming, lending and borrowing facilities are welcome. - I have a design and branding concept in mind, which would be provided to help maintain the aesthetics and user-interface of the platform. Preferred Skills and Experience: - Extensive experience in blockchain development, particularly on the Solana network. - A solid understanding of SPL token and decentralized finance...

    €161 (Avg Bid)
    €161 licitátlag
    9 árajánlat

    I'm looking for an experienced blockchain developer, specifically with a skilled background in Chainlink Oracle Smart Contract development. - The task involves creating a custom Chainlink Oracle Smart Contract tailored to manage financial data feed. - You'll be working with APIs to retrieve financial data on an hourly basis. - Unlike most projects, no calculations are required on the incoming data before returning it. Ideal skills: - Prior experience with Blockchain development - Deep understanding of Chainlink Oracle Smart Contracts - Proficiency in API data management - Knowledge and experience with financial data.

    €236 (Avg Bid)
    €236 licitátlag
    27 árajánlat

    I'm in need of a developer to create a custom healthcare information system for managing patient records, scheduling appointments, and storing research laboratory results and patient consents. Key Features: - Patient Record Management: I need a system that can comprehensively manage patient records. This includes storing essential personal and medical information, as well as the ability to update and track changes over time. - Appointment Scheduling: The system should allow for efficient appointment scheduling. This includes features such as setting up and confirming appointments, as well as sending reminders. - Prescription Management: I also need the system to manage prescriptions for patients, including tracking medication, dosage, and instructions. System Preferences: - ...

    €1864 (Avg Bid)
    €1864 licitátlag
    45 árajánlat

    I need white label custodial crypto wallet immediately. I don't have time to develop from scratch. It must be delivered immediately with its source code open.

    €624 (Avg Bid)
    €624 licitátlag
    12 árajánlat

    I need a skilled Solidity developer to work on my existing smart contract. It has some functionality issues that need to be resolved, and it's also facing deployment errors. Your expertise in both troubleshooting and deployment is crucial for this project. Key Tasks: - Identify and fix the smart contract's functionality issues - Resolve any deployment errors that are preventing successful deployment While I didn't specify a particular optimization goal, I'm open to suggestions on how the contract could be optimized. This could include reducing gas fees, improving transaction speed, and enhancing security measures. Feel free to provide your own insights and recommendations in this area. Ideal Skills and Experience: - Proficient in Solidity programming language - Exten...

    €532 (Avg Bid)
    €532 licitátlag
    41 árajánlat
    Crypto Wallet Development 8 óra left
    HITELESÍTETT

    Please develop crypto wallet quickly. You must have experience and deliver quickly

    €645 (Avg Bid)
    €645 licitátlag
    21 árajánlat

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