Blockchain projects — HireLancer archive

ID / Date Listing

Solidity smart contract Polygon

Hello, we need a simple, smart contract for our exchange in a short time. If you are professional, DM us to know about our project. Thanks

HL-34038343

Proyecto, en primera instancia NFT y token.

Estoy necesitando desarrollador blockchain, web3, contratos inteligentes a medida. El proyecto esta pensado para armar cumunidad y un ecosistema saludable en el...

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React and web3 expert(urgent bug fix)

I already have a blockchain project now. but this have 3 bugs, so I need talented developer. This is made with react. So the developer need to know well in reac...

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Bitcoin Hierarchical Deterministic wallet address generator script by Node JS

Please use node.js to write a simple script to: 1. Generate infinite numbers of BTC address which is belong to one parent address by using Hierarchical Determin...

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Bitcoin HD wallet address generation

Please use node.js to write a simple script to: 1. Generate infinite numbers of BTC address which is belong to one parent address Please conduct a transfer test...

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Secure IoT blockchain base App.

Secure IoT blockchain base Application Implement and test security architecture For IoT blockchain base using Edge& fog computing and defined software networks...

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Trading expert

I am looking for an experienced blockchain and trading expert

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BTC Bitcoin Only Config and Set PPS+ or FPPS to at YIIMP POOL . -- 2

The pool already running and config as PROP Auto generator for all coins: https://pool4ever.com Need to BTC Bitcoin Only Config and Set PPS+ or FPPS to at YIIMP...

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BTC Bitcoin Only Config and Set PPS+ or FPPS to at YIIMP POOL .

The pool already running and config as PROP Auto generator for all coins: https://pool4ever.com Need to BTC Bitcoin Only Config and Set PPS+ or FPPS to at YIIMP...

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Rewrite file related to Blockcahin

I have a file about blockchain, I need rewrite it a gain with good meaning and good grammar with zero plagiarism.

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Generate infinite BTC address which is belong to one parent address

Please provide any library that can fullfill the following requirement: 1. Generate infinite BTC address which is belong to one parent address 2. Transfer to an...

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Blockchain for healthcare

We want to build a blockchain network on Hyperledger Fabric, a permissioned blockchain, so that it can be implemented for healthcare purposes. We want to build...

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I'm intersted in nfts

Hi there i want to get some NFTs but I'm facing some problems, I'm hoping that you can assist me

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Bitcoin Mining Developer

I am looking for an experienced blockchain expert or miner that can develop or provide easy-to-use software to mine bitcoin on my laptop. Detailed guidance and...

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Add and Set Ethereum Coin PPS+ or FPPS to Existing YIIMP POOL .

The pool already running and config as PROP Auto generator for all coins: https://pool4ever.com Need to Add and Set Ethereum Coin PPS+ or FPPS to Existing YIIMP...

HL-34034120

React developer needed for web3 start-up

We are looking for an experienced React developer to join our team, who is excited about our mission to bring Defi primitives to Millions of users. They will be...

HL-34033244

Help Fix pending transaction issue on Ethereum EVM compatible blockchain

I have an Ethereum EVM compatible type of Blockchain programmed with Proof of Authority (PoA) algorithm and which works very fine but since yesterday my chain s...

HL-34032547

blockchain developer

I need a Blockchain Developer to two NFTs Projects. The first thing that I need is to sell or mint NFTs from my webpage. So I Need the clients wallets (metamask...

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Crypto influencer needed

For our upcoming presale Marketing, we need an expert in presale and a good influencer

HL-34032321

Hashgraph SDK NFT API Needed - Blockchain

Need to build an API to interact with Hashgraph SDK for an NFT collection Please get familiar with Hashgraph SDK and Hashconnect. It is built on Hedera Hashgrap...

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Hashgraph SDK NFT API

Need to build an API to interact with Hashgraph SDK for an NFT collection Please get familiar with Hashgraph SDK and Hashconnect. It is built on Hedera Hashgrap...

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Blockchain Play to earn NFT game -- 2

Looking for Unity blockchain developer for long term

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Smart contract developer

We're in the planning phase of a new Token which will be connected to hardware in the real world. In our project we have people with experience from Finance, We...

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an integrated secure Model with Blockchain & SDN &Fog Computing for IoT app -- 3

For an academic project a security architecture which integrates blockchain technology, fog computing and defined software networks for the Internet of Things A...

HL-34029077

Build me a web-based application for my project

Two parts to this request. 1). I need a magic eden sniper bot, web based. Preferably on-chain with wallet connection. A uto Buy/Sell based on Floor price. Magic...

HL-34028913

Private blockchain working prototype

I need a working prototype of a private blockchain concept using the hyper ledger, solidity, or other relevant tools which I can demonstrate with real participa...

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Add and Set Ethereum Coin to Existing YIIMP POOL - PPS+ or FPPS payment.

The pool already running and config as PROP Auto generator for all coins: https://pool4ever.com Need to Add and Set Ethereum Coin to Existing YIIMP POOL - PPS+...

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ICO token page setup

Hello, I have an ICO page and need help with connecting my token to the page. If you have experience please bid to help me. It takes few minutes of your time. T...

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I wanna support of bnb miners

I wanna support of miners who can help me my crypto bot

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I need someone to build an Identity management system on blockchain

Like the title says : I need someone to build an Identity management system on blockchain

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Mobile App for cryptocurrency exchange

Hi we want to develop Android and IOS app using the Api of our crypto exchange we have ux ui designs ready

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Blockchain - Fork NFT Lending Site

Project: NFT Lending Site Fork READ FIRST BEFORE BIDDING!!! Please read the entire project description. We will not entertain low bids that are used to kick off...

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Mint Smart Contract (ERC-721)

Hey I need to mint out a 777 supply no traits all the same NFT 777 tokens on the ETH blockchain

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I need Rust expert to fix bugs.

Hi freelancers. I need an experienced Rust developer with strong working knowledge and excellent familiarity with blockchain technologies. I have some bugs in p...

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Need to convert string to bytes memory[] Solidity

As the title states. This is the error I get: Invalid type for argument in function call. Invalid implicit conversion from string storage ref to bytes memory[]...

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Lead blockchain engineer

Full stack engineer with experience in Rust programming needed for a long term projects. Should be able to work on independent projects and overseeing other dev...

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DESCENTRALIZED WITHDRAW METHOD BEP-20 FOR APP AYRA ECOSYSTEM

AYRA ECOSYSTEM APP: https://play.google.com/store/apps/details?id=com.ayracrypto.ayratoken&hl=es&gl=US AYRA BEP20 TOKEN: https://bscscan.com/token/0xe976e9cc548...

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I need decentralized withdra method bep-20 for my app

We have the following token: https://bscscan.com/token/0xe976e9cc54817074922eb5426f2be74cd2883f17 We have a Metamask removal method implemented but it is failin...

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Lead Solidity Engineer

We are looking to hire a Lead Solidity Engineer who is self-motivated, goal-orientated, and a strong team player. The perfect candidate takes pride in their wor...

HL-34024929

Looking for senior solidity developer.

Hi, freelancers, I have a smart contract for minting and nft staking. It needs small changes. Only small. It should be completed with in 3 hours. If you want, c...