Ethereum jobs

I need an experienced developer to make my react app able to store and listen the shipping details for orders. This is a marketplace, every vendor will have access to access the shipping details for his orders. The order details will be stored the same way the reviews are stored. The website is built with react and will run on IPFS and ethereum blockchain. Budget: $360

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

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'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!

experienced developer to connect ETHEREUM / GETH NODE to my PC

experienced developer to connect ETHEREUM / GETH NODE to my PC

I am working on a Wordpress cryptomarketplace and need assistance from a project freelancer to doublecheck the code and function. I need a function-level review in and may need debugging assistance, although I'm not sure about that yet. the express js code covers btc, ethereum, apecoin, tectonic, xrp previous developer was in accident and unable to complete... his task was to make my marketplace able to host these 5 wallets, users needed to be able to send currency internally amongst each other as well as send send to external wallets/exchanges need to be able to pay for products and services on my site via these hosted wallets.. i have wcfm installed which allows users to be able to add products and services these services are mostly complete i need to hire someone

...Coinbase Wallet, WalletConnect, and Ledger. Upon first login, display a Terms and Conditions pop-up. Coin Display and Bank Button: Show the user's Lambo coin balance at the top of the page. Design the Lambo coin icon. Include a "Bank" button that, when clicked, opens a pop-up for deposits and withdrawals. (use for reference) Support native tokens for Polygon (Matic, USDC, USDT, Wrapped Ethereum). Display the current token prices. Create a withdrawal function inspired by crashout.io. Menu with Game Icons: Include a menu that appears when users hover over it, with icons for all games mentioned in the whitepaper, excluding slots and live games (to be added in version 2). Add icons for Staking and Support. Incorporate the Lambo theme into all icons (e.g., use a Lamb...

...Coinbase Wallet, WalletConnect, and Ledger. Upon first login, display a Terms and Conditions pop-up. Coin Display and Bank Button: Show the user's Lambo coin balance at the top of the page. Design the Lambo coin icon. Include a "Bank" button that, when clicked, opens a pop-up for deposits and withdrawals. (use for reference) Support native tokens for Polygon (Matic, USDC, USDT, Wrapped Ethereum). Display the current token prices. Create a withdrawal function inspired by crashout.io. Menu with Game Icons: Include a menu that appears when users hover over it, with icons for all games mentioned in the whitepaper, excluding slots and live games (to be added in version 2). Add icons for Staking and Support. Incorporate the Lambo theme into all icons (e.g., use a Lamb...

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...

The code above is a smart contract in Solidity, designed to create a digital identity for a person named Cristyan David. The digital identity includes information such as name, age, birthdate, address, nine-digit number, health card number, social insurance number, passport number, and hourly GPS tracking. The con...digital identity for a person named Cristyan David. The digital identity includes information such as name, age, birthdate, address, nine-digit number, health card number, social insurance number, passport number, and hourly GPS tracking. The contract has functions to add and verify the digital identity, as well as track and retrieve hourly GPS locations. This smart contract can be used on the Ethereum blockchain to create a secure and decentralized digital identity for ...

...Coinbase Wallet, WalletConnect, and Ledger. Upon first login, display a Terms and Conditions pop-up. Coin Display and Bank Button: Show the user's Lambo coin balance at the top of the page. Design the Lambo coin icon. Include a "Bank" button that, when clicked, opens a pop-up for deposits and withdrawals. (use for reference) Support native tokens for Polygon (Matic, USDC, USDT, Wrapped Ethereum). Display the current token prices. Create a withdrawal function inspired by crashout.io. Menu with Game Icons: Include a menu that appears when users hover over it, with icons for all games mentioned in the whitepaper, excluding slots and live games (to be added in version 2). Add icons for Staking and Support. Incorporate the Lambo theme into all icons (e.g., use a Lamb...

I have a nodejsbot that trades on bsc chain. I want you to fix it so it can trade on ethereum as well. Inside the add a variable "Blockchain: Eth" or "Blockchain: bsc"

I want an experience developer to work on this project for me. A crypto wallet that has everything can send, receive, store and convert crypto coins. That support coins like: bitcoin, ethereum ,shiba, matic, bnb, and other 10 of it. It must be able to generate address and private keys. Must be secured and be able to go on the blockchain.

My project is to create a new crypto token, similar to USDT, based on the Ethereum platform. The type of token that I would like is a stablecoin, pegged to the USD. This token will be used as a form of payment and will provide a secure, reliable, and stable digital asset to users. I'm looking for an experienced blockchain developer who is knowledgeable in this field to ensure that the token is reliable and secure. Ideally, this developer should also have experience in both smart contract development as well as networking protocols and consensus protocols to ensure that the token is released securely and efficiently. The development of this token requires great precision and a strong attention to detail, as it should represent a real asset and perform as safely and securely as p...

We are looking for Ethereum and web3 experts to make our Web3 project a success. Our team already includes talented designers and front-end developers, and all the groundwork has been finished to start our project. Following the launch of the NFT mining site, we plan to launch several related websites such as games, airdrops, NFT marketplaces, and DEX. Review project plans and explore possibilities. Our projects are both urgent and long-term, so we need the fastest experts. At first please check our project to get all information and roadmap, check the implementation or possibility, then contact me. A quick and complete implementation will increase your chances of being hired. At first I recommend you to check the project. Please explain to me about errors

I am in need of an experienced Smart Contract developer who can help me bring my project up to speed. The technology I'm using is Ethereum, and I have a rough idea of the project, though I need assistance to bring it to fruition. Additionally, this project requires the contract to be written in the Solidity programming language. To ensure success, the developer must possess expert level knowledge and experience with smart contracts, specifically Ethereum and Solidity. Furthermore, they must have the technical know-how and communication abilities to work independently and follow detailed instructions. Only experienced and qualified individuals should apply. I am looking forward to working together to achieve a common goal. If you have the skills and expertise, please ...

...(Such as forking a DEX from Ethereum mainnet to polygon or Binance smart chain) Comprehensive understanding of Uniswap v2 and v3 and the concept of fungible and non-fungible liquidity pools in each DEX respectively. Understanding the concept of bootstrapping liquidity as done in the case of Sushiswap and Uniswap v2. Expert in frontend and backend development (however much of the focus will be on backend blockchain Smart Contract replication on EVM) - Core Task: - You would be required to work with your manager who would provide you instructions and guidance on forking SetProtocol V2 index management protocol and Uniswap V3 (uniswap V3 uses non-fungible liquidity pools) from Ethereum Mainnet to Binance Smart Chain. These two protocols are functional on Ethereum...

Create a modern cryptocurrency website from designs Tech: + Typescript + TailwindCSS MERN stack Goal: Build a cryptoc...cryptocurrency website from designs Tech: + Typescript + TailwindCSS MERN stack Goal: Build a cryptocurrency gambling website from PSD designs and requirements provided and discussed (google docs). Must be fully secure and fully tested with no bugs or issues. Experience Needed: - Send an example of your previous experience with Full Nodes ("Bitcoin Core" for Bitcoin and "Geth" or others for Ethereum) -Send an example of your previous experience making Desktop/Mobile responsive websites -Send an example of your previous experience accurately converting a PSD design to a fully responsive website using MERN stack (or similar stacks) Ti...

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 a...

Hello there. Looking for someone to create me a NFT - ERC-721 Smart Contract. It does not have to be a AAA Contract, just a solid and efficient Ethereum NFT contract. Payment can be discussed privately, with multiple options on how you are being paid.

...back-end system and assist in developing the project architecture. You need to Build and maintain server code bases. Collaborate with client-side developers and the content team. Identify and resolve issues with the security and reliability of back-end systems. You need experience developing the large-scale backend system for real-world applications, strong knowledge of blockchain eg. Bitcoin, Ethereum, Ripple, etc., experience with frontend- React + NextJS + HTML + CSS, Ruby, Rails, Docker, Postgres, Backend- Node + Express + MongoDB or MySQL + Redis, XRPL etc .. almost covering all frameworks and libraries. You should be comfortable wandering around unexplored application/game design / virtual world territory, and excited to contribute to refining ideas. You must collaborativ...

...made to have the marks like a $ Sign. Not sure if it would look best in a circle or some other design, will leave that up to you. 4. The token should also have Crypto Logos on it, i think in a square arangement but open to ides. Not the words, just the image component. I have included the vectors where I can, but you may need to find another color or change the color to maximize the effects. Ethereum Binance Logo New logo if possible, but can use the old one in addition where needed as well) Arbitrum Logo Bitcoin Logo 5. It should have the Token Ticker Name on it as well, in a small banner, somewhere in the bottom area. "$RogueOG" Some small changes may be needed as we go along but this is the basics that I am looking for. Hopefully you can help me to get this do...

- github repository for the project would like to see this working, possibly already does. also i need custom token support for it

Comparison performance in KPI, among Hyperledger, PKI, Blockchain, Ethereum, and DPKI . The graph data should be below the parameters: Which applications are used for capturing the data like (Putty) screenshot also required. 1. Total execution time of the transaction, 2. successful transactions, 3. average latency, and 4. total throughput

I am looking for a skilled web developer with knowledge in Linux to deploy locally an Dapp. The app is build using React and Blockchain. We will use Ethereum Remix for local deploy of Smart Contract. I will need a full video tutorial with every command used and every step. The video will be cut to be as short as possible. Deadline: 2 Days

After switching to Ethereum 2.0, geth alone cannot synchronize with the Ethereum network. Install PoS clients such as prysm, lighthouse, teku, etc. together and find a worker to sync with. It must be synchronized with the latest node of Ethereum and must be able to receive data. The specifications of the server are good enough.

We are looking for Ethereum and web3 experts to make our Web3 project a success. Our team already includes talented designers and front-end developers, and all the groundwork has been finished to start our project. Following the launch of the NFT mining site, we plan to launch several related websites such as games, airdrops, NFT marketplaces, and DEX. Review project plans and explore possibilities. Our projects are both urgent and long-term, so we need the fastest experts. At first please check our project to get all information and roadmap, check the implementation or possibility, then contact me. A quick and complete implementation will increase your chances of being hired. At first I recommend you to check the project. Please explain to me about errors

Hi! I want to add this feature that user can transfer apecoin and tectonic , etc in ethereum wallet. I mean that I need the backend for that. Maybe node js. Who can do this? If you can, Please leave a message. Thank you.

Hi. Here is Eden. CTO of DeGods. We are onboarding Solana - EVM (Ethereum) NFT Bridging project using Wormhole. Wish to meet someone who is strong experience on NFT Bridging (Sol-ETH) Review the posted codebase and upload document of feedback in 1 hour. Our team will review it and put you our Bridge team member. Will pay only through freelancer. Wish you best.

Hi. Here is Eden. CTO of DeGods. We are onboarding Solana - EVM (Ethereum) NFT Bridging project using Wormhole. Wish to meet someone who is strong experience on NFT Bridging (Sol-ETH) Review the posted codebase and upload document of feedback in 1 hour. Our team will review it and put you our Bridge team member. Will pay only through freelancer. Wish you best.

create a solidity code complete with ETH arbitrage

I am looking for a DAO expert with expertise in governance design and an understanding of Ethereum blockchain technology. My project has a specific timeline which I will share more details about during the bidding process. The right individual should have firsthand experience and insight on the development of DAOs in order to bring the project to fruition by the agreed-upon date. My project requires someone with deep knowledge in blockchain architecture, smart contracts, token economics, and other related DAO skills. Reliability and consistency are essential qualities in the person I am seeking. If you have the necessary skill set and can make a solid commitment to this project, then I look forward to hearing from you soon.

...classify available devices on the clouds based on their specifications, 2- Building a predictor using DRL and other algorithms to dynamically build two policies during runtime: (1- Policy of selecting the proper device to be assigned to execute any new job received based on the nature of the job, 2- Policy of task scheduling and resource allocation on the selected devices (executors)) 3- Building an Ethereum blockchain to be used for all transactions of the framework using DPoS consensus algorithm, and smart contracts will be the rewarding mechanism for devices executing the jobs to receive the tokens. 4- Building An Authenticator as part of the "Blockchain Security Manager" to authenticate the devices before joining the system. The job that will be used in the imple...

Hi Guys, I need help with developing a web3 application to get Blockchain Data from Ethereum, Polygon, Arbitrum, etc. In the first stage the data will bee liquidity pool specific prices (e.g. get Uniswap CRV/MATIC price). I prefer to develop this application myself to get practice in web3, to understand the application myself and to be able to troubleshoot in the future. You will be guiding me with which SDK to use and helping with coding. First thing we will create a user requirement specification document. Kind Regards Baback

1. Purpose: A blockchain pilot project for a Café loyalty programme 2. Deliverables: (1) Create a “Cafe Token” on Ethereum blockchain (Please refer to the attached scenario illustration) (2) Smart contract source code (3) A few MetaMask wallets (Need to discuss who should create them) (4) One Microsoft Word document that includes token standards and relevant information (5) A live demo showcasing the tokens can transfer smoothly on the network 3. Collaboration Timeline: (1) Day 0: Kick-off meeting to align expectations and clarify details (2) Day 3: Short check-ins (3) Day 5: Handover all deliverables (and live demo meeting if needed) (4) Day 6-8: review deliverables, revision, and clarification (5) Day 8: acceptance and full pa...

Hi. I need a copy trading bot that can execute all swap trades in the targeted wallet as quickly as possible within "same block". 1. I'll use a separate paid private node for top-notch speed. Our bot should connect to this node. 2. Must be able to register multiple trading wallets, and each trading wallet must be able to register multiple target wallets. 3. It needs hi speed and mempool detection ability to enable the right next transaction of the launching sniper(First buyer). Please understand that i'm ordering bot production separately for speed up only. 4. The copy trading bot must be controllable with Telegram(the most preferred option) or any program for Windows. I'll inform you of the program for reference as the work progresses. 5. Features I need 1) Copy ...

...seamlessly. Responsibilities: Develop and deploy the smart contract for our index token on the Ethereum network or other blockchain platforms. Collaborate with other developers, designers, and stakeholders to ensure that the smart contract meets our business requirements. Create a secure and efficient smart contract that will manage the transactions of the index token on various decentralized exchanges. Write high-quality code, perform testing, and provide ongoing maintenance and support for the smart contract. Participate in code reviews and provide feedback to other developers. Requirements: Strong proficiency in Solidity programming language Extensive experience with smart contract development on the Ethereum network or other blockchain platforms Deep understanding of...

Though most of the central banks doen't publish there own CBDC source code, some of the developing contries authorized some domestic entities to develop application solutions based on CBDC. We need one to integrate the three countries in Project Icebreaker () with your countries as the fourth. In this document, the consensus of hub is unclear to every...solutions based on CBDC. We need one to integrate the three countries in Project Icebreaker () with your countries as the fourth. In this document, the consensus of hub is unclear to everyone including Icebreaker team. I will implement a decentralized consensus in the hub for these four countries. Need to build a private blockchain with proof of stake, enterprise Ethereum

A marketing team with experience working on NFT projects (Preferably Solana/Ethereum). Ideally, in EU time zones. Need to grow the project organically. The first milestone is until the NFT sale. Based on performance, the contract could be converted into a long-term. Responsibilities include (not limited to): Manage Social Media Host Twitter Spaces Marketing Content. Engage Community Effectively Communicate the Product Updates/Milestones given by the core team to the community. Be the face of the project.

We are looking for Ethereum and web3 experts to make our Web3 project a success. Our team already includes talented designers and front-end developers, and all the groundwork has been finished to start our project. Following the launch of the NFT mining site, we plan to launch several related websites such as games, airdrops, NFT marketplaces, and DEX. Review project plans and explore possibilities. Our projects are both urgent and long-term, so we need the fastest experts. At first please check our project to get all information and roadmap, check the implementation or possibility, then contact me. A quick and complete implementation will increase your chances of being hired. At first I recommend you to check the project. Please explain to me about errors

I need someone to help me verify my Ethereum NFT Smart contract. I'm stuck at the last step and need someone to verify this contract for me.

...decentralized features. You should have experience with blockchain development frameworks such as Solidity, and a strong understanding of blockchain architecture and security. You will work closely with our Game Developers and other team members to create a secure and robust blockchain infrastructure for our game. Responsibilities: - Design and implement smart contracts on blockchain platforms such as Ethereum - Develop blockchain-based solutions for game features such as player-owned assets and decentralized marketplaces - Collaborate with Game Developers to ensure secure integration of blockchain features into the game's infrastructure - Conduct security audits and perform penetration testing to identify vulnerabilities and ensure the security of the blockchain infrastru...

...Figma designs and requirements Tech: + Typescript + TailwindCSS MERN stack Goal: Build a cryptocurrency gambling website from PSD designs and requirements provided and discussed (google docs). Must be fully secure and fully tested with no bugs or issues. Experience Needed: - Send an example of your previous experience with Full Nodes ("Bitcoin Core" for Bitcoin and "Geth" or others for Ethereum) -Send an example of your previous experience making Desktop/Mobile responsive websites -Send an example of your previous experience accurately converting a PSD design to a fully responsive website using MERN stack (or similar stacks) Additional Requirements: Provide daily progress updates Develop the website's frontend and backend with database and admin...

We are looking to get a Dapp Developed for telegram Token rug detector, that will work on both Shibarium and Ethereum Blockchain.

Hi everyone! I need a simple 2d crypto-related logo that SHOULD REPRESENT ETH (ethereum). logo name: ETH Shares for ideas you can search for "Ethereum inspired logos" Thanks :) Best of luck

I am looking forward to creating an MEV script that I can deploy to make a profit. The script can eith...an MEV script that I can deploy to make a profit. The script can either find price differences in one exchange or on multiple exchanges for profit, or front-run miner transactions in order to submit quickly and profit from transactions on the blockchain. Like a sandwich attack. Please read:

...using smart contracts and the Ethereum network. Responsibilities: Developing and implementing smart contracts on the Ethereum network Developing web applications using Neumorphism design principles Collaborating with other developers and stakeholders to ensure a seamless user experience Creating and maintaining secure and efficient code Maintaining existing code and implementing new features Identifying and fixing bugs and performance issues Staying up-to-date with the latest industry developments and technologies related to block chain and smart contracts. Requirements: Bachelor's degree in Computer Science or related field Strong understanding of block chain technology and smart contracts Experience developing and implementing smart contracts on the Ethereum...

Hi, we need a smart contract for an ERC20 token presale similar to: -The smart contract/ dapp should have multiple "phases" with different token price for every phase. - The token sale dapp should be accessible with both metamask and "wallet connect". - Users should be able to buy tokens with ethereum and erc20 stablecoins (USDT, USDC, DAI etc...) -The Token sale dapp should have a percentage (%) bonus system based on the amount of tokens bought. -The token sale dapp should have a referral system for which a referral link gets generated when the user connects their wallet and they should receive token rewards when other users buy from their referral link. -The dapp should have a leaderboard for ranking investors based on the amount of token they bought

1. Purpose: A blockchain pilot project for a Café loyalty programme 2. Deliverables: (1) Create a “Cafe Token” on Ethereum blockchain (2) Smart contract source code (3) A few MetaMask wallets (Need to discuss who should create them) (4) One Microsoft Word document that includes token standards and relevant information (5) A live demo showcasing the tokens can transfer smoothly on the network 3. Collaboration Timeline: (1) Day 0: Kick-off meeting to align expectations and clarify details (2) Day 3: Short check-ins (3) Day 5: Handover all deliverables (and live demo meeting if needed) (4) Day 6-8: review deliverables, revision, and clarification (5) Day 8: acceptance and full payment 4. Contractor requirement: (1) English spe...