Blockchain Jobs

I have some GitHub Smart contract code which is I want to modify. one smart contract code is want change ERC20 to BEP20 for token creation with price another one is sale contract which is I want 1 BEP20 token selling cost is 1 USDT

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 there, We are looking for someone who can build a blockchain from scratch, using best practice as bitcoin or Ethereum we need a blockchain which reflects some overall rules embedded in the genesis block.. We want to have an initial conversation with anyone who has this type of experience please DM us. thanks CP

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.

Skill Set Needed: Blockchain technology: Understanding the fundamentals of blockchain technology is crucial when building a cryptocurrency transaction framework. You should know how to design, develop, and deploy smart contracts on blockchain networks. Cryptography: Cryptography is the foundation of cryptocurrency, and it is essential to have a deep understanding of how it works to secure transactions. Programming: You should be proficient in programming languages such as Solidity, JavaScript, Python, or Go, among others, to develop and deploy smart contracts on blockchain networks. User Experience (UX) and User Interface (UI) Design: To create a framework that is easy for common people to use, you need to have expertise in UX and UI design. You should know how to create intuitive interfa...

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

Looking for an experienced developer to help build an off chain , decentralised, transparent, and secure price feed for decentralized synthetic exchanges using Gun, the distributed graph database library. The project will involve creating a curated list of API providers deemed trustworthy and reliable by the community, with each node on the network connecting to only one provider from the list. A consensus mechanism will also need to be implemented to allow the community to vote on adding or removing providers from the list. Gun's graph database functionality will be used to store and manage the pricing data received from each API provider, allowing for easy querying and retrieval of data by the Chainlink nodes. To ensure off - chain security and validity, Zero-Knowledge (ZK) proo...

Must have prior experience with DAO, token economics. DAO will track an underlying assets (NFTs), deploy capital to acquire crypto assets and liquidate asset as per demand and supply of token. Need the economist to formulate the structure of the DAO. Please reply by saying DAODAO!! so I know you have gone through my posting. And then tell me more about your prior experience on being a token economist, the project you had involved in.

Hello all. We are looking from Blockchain Engineer with experience in smart contracts with logic, and experience in development software. More details and flowchart of project we can provide in detail through call. Duration of Development = 50-75 days

I am looking for a freelancer to develop a crypto coins exchange that supports Bitcoin. I do not need a wallet system for storing coins and will not require a web-based user interface for exchanging coins. The project should support transactions involving Bitcoin, and no other coins. Any other additional features should consult with me before implementing.

Need help to add just one sha256 coin to yiimp pool. I already tried it my self and it gives some errors. wallet BfCZgZ9RLgtubHYyj1yVBEKGgA4D2soci8 is not mine. ERROR: rpc_do_call: 404 ERROR getaccountaddress [coin-name]

We need to use the ENS (Etherim Name Server) API ( ) in our java application. Project requirements - Send request and get responses from ENS API for .ETH domains: I - Register new .eth domains using ENS API, our .wallet metamask - We need to register eth domains using our java application. In our java application will be the our metamask key wallet and the password. II - Other Requeriments: a)Check if a .ETH domain is available for registration and List .ETH domains owned by all users. b) Obtain information about active domains belonging to any user. Example: c) Modify settings of our domains. Example: change controller, dns etc. d) Transfer our domains to other wallets. e) Instructions on how to create an ENS API account and obtain the API key - We need to have access to the E...

I need 100+ valid infura api keys. Simply delivered in a text file. Simple job. Simply need the required information.

Fully decentralized File immutability Competitive free plan Autonomous

Im building a small exchange like where users can exchange crypto fast and with no KYC. When a user send crypto to the deposit adress, they have to get notification that the crypto they have sent is confirmed on teh network. I will have like 50 different coins in total. USDT, BTC, ETH, SOLANA, ADA, FTM, and so. Probobly the most popular ones. Total users per day will be very low at the beginning, probobly like 1-10 users a day.

Please create a crypto trading bot based on ethereum Blockchain with different contracts addresses that I could enter (Metamask, uniswap pool essentially). I would like to have it as a as a chrome Extension or it can be React (front end)/ nodejs) Back end) app, or any other solution that gets the job done for a reasonable cost. I would like to work with a developer who has experience building a bot like this and can provide previous projects as proof of your ability to execute this in a high-quality fashion. It should operate smoothly and enable transaction to run quickly once the desired strategy is selected. The BOT would essentially include: A simple UI for the bot where I can manage parameters such as: the amount of the trade, slippage tolerance (on or off) , range or amount t...

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.

Buscamos redactor/editor/traductor de contenido con gran conocimiento sobre blockchain, DeFi, NFTs…para varios proyectos relacionados con el sector cripto, la función principal será la revisión,traducción al español, corrección y mejora de los artículos publicados, además se puede requerir la creación de noticias, artículos SEO o cualquier contenido escrito que se requiera. Requisitos: • Nivel de inglés: Muy Alto/Nativo • Nivel de Español: Nativo • Experiencia: Se requerirá experiencia demostrable en redacción de contenidos de criptomonedas. • Conocimientos: Gran conocimiento del sector cripto, SEO, Wordpress, se valora conocimiento de Photoshop (básico). ...

DAO con el estándar ERC721 Votes que me permite usar como poder de voto los NFTs de una colección. ¿Qué necesito? - Contratos en solidity que conforman la DAO (No necesito el contrato del NFT, porque este ya está creado, solo necesito poder usarlo en dicha DAO mediante una variable que sea _token y que se inyecte al desplegar el contrato en la red de Polygon) - Necesito los métodos públicos para interactuar con dicho contrato en javascript (mi app está escrita en React) con una pequeña descripción de los parámetros de entrada de dichas funciones.

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...