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!

จาก 75,109 รีวิว ลูกค้าให้คะแนน Blockchain Developers 4.84 จาก 5 ดาว
จ้าง Blockchain Developers

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!

จาก 75,109 รีวิว ลูกค้าให้คะแนน Blockchain Developers 4.84 จาก 5 ดาว
จ้าง Blockchain Developers

ตัวกรอง

การค้นหาล่าสุดของฉัน
คัดกรองโดย:
งบประมาณ
ถึง
ถึง
ถึง
ประเภท
ทักษะ
ภาษา
    สถานะงาน
    10 งานที่พบ

    The core of my WebApp is up and running, built across Python, JavaScript, and C++. What remains is a round of meticulous polishing so the whole stack stands up to production-grade demands on mainnet. Blockchain infrastructure • Smart contracts need a last review, gas optimisation, and full unit / integration tests before I push them to the governance-enabled dedicated mainnet safe. • Validator and full-node setup is in place but still requires hardened configuration, monitoring hooks, and automated canary operations so rollouts can be staged safely. • The app already talks to several internal services; I now need clean, well-documented integration endpoints that survive node restarts and chain re-orgs. WebApp fine-tuning • User Interface: tidy up edge-case lay...

    $124 Average bid
    $124 การประมูลเฉลี่ย
    54 คำเสนอราคา

    Someine that can create or generate FL Coins USDT with software or online tools to send .. Seasoned crypto software developer with deep expertise in blockchain architecture, smart contract development, DeFi protocols, and secure Web3 infrastructure. Skilled in building scalable decentralized applications (dApps), integrating multi-chain solutions, and developing high-performance backend systems using Solidity, Rust, Go, and TypeScript. Strong focus on security, protocol optimization, and delivering production-ready blockchain solutions for startups and enterprise platforms.

    $75 Average bid
    $75 การประมูลเฉลี่ย
    26 คำเสนอราคา

    I’m kicking off the first phase of a brand-new real-estate rental platform and need an experienced full-stack engineer who enjoys shaping products from day one. Our immediate priority is the user onboarding and application flow: secure email-and-password registration, profile creation, document upload, and a smooth path for tenants to submit rental applications. Once that foundation is solid, we’ll expand into listings, search, and end-to-end rental management. You’ll be pairing React, , and TypeScript on the front end with a Node.js REST API on the back. I’m looking for someone who can help define the architecture, choose the right tooling, write production-ready code, and keep scalability in mind from the outset. If you have thoughts on introducing Web3 or bloc...

    $33 / hr Average bid
    $33 / hr การประมูลเฉลี่ย
    197 คำเสนอราคา
    U.S. Digital Asset Procurement Partner Needed
    4 วัน left
    ยืนยันแล้ว

    U.S. Crypto Procurement and Liquidity Partnership Opportunity MAT Digital Solutions is seeking reliable partners located in the United States to support procurement for our private OTC and P2P digital-asset desk. We already have an established clientele and recurring buyer demand. This is not a marketing or client-acquisition role. Partners will not be required to promote our services, find customers, or conduct marketing on our behalf. Our focus is solely on sourcing and supplying digital assets to meet existing client purchase demand. Partnership Options We are seeking individuals or businesses who can: 1. Procure digital assets through reputable, compliant exchanges and approved channels, then receive 5% of the completed trade volume for eligible transactions; or 2. Sell digital asset...

    $7435 Average bid
    $7435 การประมูลเฉลี่ย
    7 คำเสนอราคา

    I need a seasoned blockchain developer who can jump in right now and finish a full integration with the ZEC blockchain within the next 24 hours. The target is a running web application that also relies on its own backend/database, so you will be wiring both layers to the blockchain and handing back a working, fully tested build. Scope • Connect my existing web front-end to ZEC so transactions post and confirm in real time. • Sync the app’s current database records with on-chain data, keeping both sides consistent. • Provide a quick walk-through (video or call) and concise deployment notes so I can reproduce the setup. Fixed budget is ₹10,000 and the clock starts the moment you accept. Please respond only if you have proven ZEC (or similar UTXO-based) experience...

    $202 Average bid
    $202 การประมูลเฉลี่ย
    26 คำเสนอราคา

    I need a full-stack developer who can build a launchpad. You should be familar with experience with and pump fun logic We will have uniswap v2 pool and classic mode as Please give us the quote and timeline to build this launchpad

    $21 / hr Average bid
    $21 / hr การประมูลเฉลี่ย
    76 คำเสนอราคา
    Smart Contract Engineer for Web3 Platform
    2 วัน left
    ยืนยันแล้ว

    We are seeking an experienced Smart Contract Engineer to support the continued development of a Web3 developer reputation platform. The platform is currently under active development and has not yet been deployed publicly. It is designed to create verifiable developer profiles using technical contributions, wallet activity, smart contract deployments, project history, attestations, and other professional evidence. The selected engineer will review the existing smart contract architecture, identify security and design improvements, and contribute to the development of reliable on-chain reputation features. Key Responsibilities Develop and maintain contracts for developer profiles, attestations, credentials, reputation records, and verification workflows. Implement secure minting, owner...

    $25 / hr Average bid
    NDA
    $25 / hr การประมูลเฉลี่ย
    7 คำเสนอราคา
    Flash TRC20 Token
    1 วัน left
    ยืนยันแล้ว

    I need a Flash-style TRC20 token built on the Tron blockchain that is both burnable and protected by multi-signature access. My priority is to have the contract coded, fully tested, and ready for deployment as quickly as possible without compromising security or adherence to the official TRC20 standard. Please write the contract in Solidity, comment it clearly, and supply a brief README so I can redeploy or verify it myself later. A small, self-contained test script (TronBox, Hardhat, or a comparable framework) that proves the burn function and the multi-sig requirement are working will speed up my review. Deliverables: • Auditable Solidity source code implementing TRC20 with burnable capability and multi-sig control • Compiled bytecode, ABI, and deployment steps • A s...

    $532 Average bid
    $532 การประมูลเฉลี่ย
    23 คำเสนอราคา
    SEO Content and Guest Posting Expert
    1 วัน left
    ยืนยันแล้ว

    Project Title Need 10 High-Quality Technology & Crypto Articles on DA 70+ Websites Project Description We are looking for an experienced SEO content and guest-posting specialist to publish 10 high-quality articles on established websites with Domain Authority (DA) 70+. The articles will be focused on Technology, Cryptocurrency, Blockchain, Web3, FinTech, and related topics. Project Requirements 10 articles to be published on 10 different websites. Each website must have DA 70+. Websites should have real organic traffic and genuine authority. Relevant websites in technology, crypto, blockchain, finance, fintech, business, or related niches are preferred. Articles must be original, well-written, informative, and SEO-friendly. Content should be professionally written and provide genuin...

    $39 Average bid
    $39 การประมูลเฉลี่ย
    17 คำเสนอราคา

    We are seeking an experienced blockchain/full-stack team to build , an institutional Real-World Asset tokenization platform focused initially on ultra-high-purity Copper Powder and high-purity Nickel Wire. The developer must deliver: public website, CMS/admin portal, industrial-metal registry, Digital Asset Passports, ERC-20 smart contracts, configurable tokenomics, institutional whitepaper, future Proof-of-Reserves and redemption modules, fully functional iOS and Android apps, testing, deployment, manuals, training and final handover. ReserveChain is in the Swiss pre-incorporation/prelaunch stage. Final company details, legal structure, token classification, token-holder rights, laboratory reports, ownership records, valuations, custody, insurance, reserve confirmations, offering terms ...

    $1500 Average bid

    บทความแนะนำสำหรับคุณโดยเฉพาะ