Nodejs solidity jobs
...technical challenges and bottlenecks to ensure smooth operation of the mobile game. **Requirements:** - Strong experience in mobile development, with proficiency in iOS (Swift) and/or Android (Java/Kotlin) development. - Experience with or for interacting with the Ethereum blockchain. - Knowledge of blockchain development, particularly Ethereum and smart contract languages like Solidity, is a plus. - Familiarity with frontend technologies such as JavaScript, React Native, or Flutter. - Excellent communication skills and ability to work collaboratively in a fast-paced environment. - Passion for gaming and blockchain technology, with a desire to innovate in the mobile gaming industry. If you are passionate about mobile development, gaming, and blockchain technology, and want t...
i need a backend preferably in nodejs. one endpoint. that submit some birh date data. then the backend should request the html from anotherwebsite, fill its form click on submit get the data and send them
With I can connect to the websocket via the web browser. But I want to connect to this socket with nodejs, unfortunately I couldn't get a successful connection. I am ready to pay a fee to an experienced websocket and autobahn person just for a successful connection to websocket.
I'm looking for seasoned blockchain developers, proficient in creating, testing and implementing smart contracts using Solidity. Here's what I need: - Token creation and distribution: I require a smart contract that can efficiently create and distribute tokens. - Current smart contract: The project requires the creation of a significant modern smart contract. Please choose your coding language as Solidity, but flexibility and the ability to work with other languages as the project evolves will be advantageous. The ideal candidate would have a strong command of Ethereum and the Solidity language. Proven experience in developing similar projects would be crucial.
Hello Team, I have a nodejs (ExpressJs) app which is running on 3000 port on AWS EC2 ubuntu server, I want to implement the load balancing in the app so that my app can utilize the available cores of the CPU, I have two vcpu in my virtual machine. The app involved realtime communication usng , this is working fine when I use pm2 without cluster mode. But when I start the pm2 in cluster mode then my connection doesnt work and sometime it work and soemtime it doesnt work. I need a person who have done this implementation befoe so that work fine with pm2 cluster mode. I will not be able to provide you the code however you can guide me or take the remote access to solve this issue.
I'm experiencing considerable performance issues with my Linux server due to MongoDB services using up 100% of the CPU. The server is running MongoDB 4.2 and its primary use is for real-time processing. Key tasks will involve: - Identifying the root cause of resource overuse - Implementing a solution to reduce CPU utilization - Ensuring optimal server performance post-inter...server performance post-intervention Ideal skills would involve a deep understanding of MongoDB, its intricacies across versions (particularly 4.2), and real-time processing applications. Familiarity with Linux server management is essential. The end goal is a well functioning server where the MongoDB services operate at their full potential without using up 100% CPU. I am using SocketIO API with Nodejs...
I'm looking for a skilled developer to help me mint 5000 unique NFTs on the Solana blockchain. The NFTs will be of two types: artwork and collectibles. Key Requirements: - Mint 5000 unique NFTs on the Solana blockchain - Implement royalties management for all NFTs - Categorize NFTs into artwork and collectibles Ideal Skills and Experience: - Proficiency in Solidity and Solana smart contract development - Previous experience in NFT minting - Excellent understanding of royalties management in NFTs - Strong background in managing and minting large volumes of NFTs Please share your previous NFT projects and let me know if you have experience minting NFTs on Solana specifically. Looking forward to seeing your proposals.
...(dApp) for a DeFi gaming platform. The ideal candidate should be proficient in Smart contract development, Solidity programming, and Blockchain integration. Additionally, skills related to NFTs and art (Web3 artist) are highly desirable for this project. Key Responsibilities: - Develop and deploy smart contracts on the blockchain - Implement and integrate blockchain technology for the dApp - Design and integrate NFTs and other art-related aspects into the platform Functionalities Required: - User authentication - Token trading - Voting system Ideal Skills and Experience: - Previous experience in DeFi or gaming dApp development - Strong knowledge in Smart contract development, Solidity programming, and Blockchain integration - Familiarity with NFT marketplaces and Web3 a...
Hi Robert C., I noticed you posted a following project ( https://www.freelancer.com/projects/nodejs/Commerce-Platform-Development-using/details )
SCOPE OF SERVICE Support Service for cases of massive crashes of the ElasticSearch Search Platform (NodeJs + ElasticSearch). It must cover critical outages of Search Services outside of business hours, weekends and holidays (see details). The service must also include preventive analysis that will allow us to establish whether the platform is “healthy” in order to reduce these types of events. DETAIL OF EXTENDED SUPPORT The Extended Support service will have the following scope: • Support Hours: Monday to Friday from 18:00 to 23:00 and Saturdays, Sundays and Holidays from 9:00 to 23:00. The service will cover the resolution of critical incidents (service outage) in this time slot. • The committed SLA, for this time slot, will be 3 hours from the report sent ...
I'm looking for a blockchain expert who can troubleshoot and rectify bugs in my existing smart contract deployed on Binance Smart Chain. Key Responsibilities: - Analyze t...Responsibilities: - Analyze the smart contract: Understand the functions and logic implemented. - Bug Identification: Identify the source and nature of bugs. - Bug Fixing: Modify code to eliminate bugs without affecting the contract's functionality. - Testing: Ensure the contract runs smoothly post-fix. Ideal freelancer: - Extensive experience with Binance Smart Chain and Smart Contracts. - Proficient in Solidity programming language. - Strong understanding of blockchain technology and decentralized applications. - Previous experience in debugging, testing, and deploying smart contracts would be a si...
I'm seeking a skilled Solidity developer to create a smart contract on the Ethereum platform for my project. - Proficient in Solidity: Having a deep understanding of the Solidity programming language is tremendously important for this project. Familiarity with Ethereum's layer solutions would be advantageous. - Experience with Ethereum: Having significant experience working with smart contracts on the Ethereum platform will be beneficial in ensuring smooth development and functionality implementation. - Types of Projects: We are aiming to develop a smart contract which requires extensive knowledge about writing, testing, and implementing contracts on Ethereum. Prior experience with similar projects is a plus. I look forward to seeing your bids and h...
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 la...
As a web development team, we have a solid foundation but lack in-depth knowledge and experience in web3/blockchain technology. We crave for a senior blockchain engineer to bolster us, especially on Ethereum and Bitcoin projects. • Skills and Experience: The ideal candidate will be proficient in Solidity and Ethereum Virtual Machine (EVM), and have extensive experience developing smart contracts, implementing token creation and integration, minting, and staking. • Responsibilities: The engineer will closely collaborate with our team and jump into our ongoing projects. Long term collaboration is desired. Expect to make significant contributions from sprint planning to deployment. We are excited about the potential advancements blockchain technology can bring to our pr...
...memecoin trading on the Raydium DEX. This bot should aim for a market cap increase via intensive buy and sell operations. Key Requirements: - Experience with Solana-based Dapps and developing trading bots. - Familiarity with Raydium DEX's API and interface. - Can implement a market-making strategy focused on aggressive buying and selling. Desired Skills and Experience: - Strong background in Solidity or other Web3 compatible languages. - Experience in working with DEXs, preferably Raydium. - Understanding of cryptocurrency market mechanics. - Ability to work under tight deadlines. This project will need continuous optimization and potential for ongoing work for the right candidate. Therefore, familiarity with the fast paced trading environment and adaptive nature of me...
I'm seeking a skilled app developer to seamlessly integrate my React Native application with Nodejs backend. This entails various features including: - User authentication: This is to be executed using a phone number authentication system. You should be able to ensure a reliable and secure process for user authentication. - Your tasks also involve enabling users to perform the following actions: - View history - Create orders - Logout - Sign in with OTP - Register user details During the user registration process, certain parameters are required, specifically the user's name, email, contact number, and address. Key skills and experience necessary for this job include proficiency in React Native, Node.js, and database management. A strong background in implementing...
I'm looking for a crypto developer to help me with a project. The details of this project are not yet decided, so creativity and flexibility are key. Ideal skills and experience for this job include: - Strong background in crypto development - Proficiency with various programming languages, including Python, JavaScript, and Solidity - Previous experience in wallet integration, smart contract development, and token creation is a plus Please, feel free to share your past work, experience, and any detailed project proposals you might have. I'm excited to see your proposals.
I'm in need of a full stack web developer who is proficient in html,css,JavaScript,nodejs,mongodb and Python. You should have a solid understanding of user authentication, database integration, and API integration. Key Requirements: - JavaScript and Python proficiency - User authentication, database and API integration experience - Understanding of social media platform development Your primary goal will be to work with us in developing a user-friendly social media platform. A strong foundation in back-end and front-end development is a must. Experience in developing similar platforms in the past will be highly valued.
I need a talented developer to create a game app similar to Codenames It should be accessible via iOS, Android, Huawei, and Desktop platforms. The key feature is the support for on...should be accessible via iOS, Android, Huawei, and Desktop platforms. The key feature is the support for online multi-player functionality, making the gaming experience interactive and competitive. The design must be professional. Please have experience in: - Multi-platform app development. - Online multi-player functionality. - Creating professional designs. The application must be used Reactjs Nodejs (expressjs) mongodb Additional chat features with text and voice for each room. Project duration is 50 days . Your bid should include your strategy for implementing these requirements.
I'm looking for a skilled Solidity developer with experience in React, Node, and cross-chain deployment. The task involves deploying Solidity files on two blockchain networks. We need a Blockchain expert who is good at deploying sol contracts with very good hand on React/Node for some development and customization to existing platform. Scope of project includes 1- Deployment sol files 2- very basic Marketplace Development for user to Buy/sell/exchange ERC20 tokens 3- Walletless functionality where user dont have their wallets or dont want to use them plz come with good offers, right candidates to work on long-term Thanks Write: EXPERT at beginning of bid
Hello: I need an experienced developer who is full-stack or we can have 2, one for backend with Nodejs. For frontend we use Vue js, Tailwind css, Angular, Express, Nuxt etc. Payment is based on milestone limits. This is not a new project from scratch. No serious person will send proposal more than $120. Total cost may become more. Thank you
I am seeking a mobile app developer to help me upload my code on my google app engine. I am unable to update or edit certain code segments. Need some to fix this for me asap. The code is already deployed there just need help in updating and editing it. I will provide the code.
Project Title: ...[MEga Sifto] is a [we work blockchain DEvelopment and WEB3]. I'm in the market for a proficient Ethereum blockchain developer who specializes in creating smart contracts and tokenization. Key requirements: - Expert in developing Smart Contracts with the Ethereum platform - Proficient in Tokenization using Solidity The ideal candidate for this role should possess the following skills and experience: - Comprehensive knowledge of Ethereum blockchain. - Proven experience in Solidity for developing smart contracts and tokenization. - Problem-solving ability, to troubleshoot any issues that may arise in the development process. Please attach examples of your previous Ethereum based projects with your bid. Looking forward to working together on ...
I'm in need of a skilled WEB3, Python, and/or NodeJS developer with experience in implementing blockchain technology. The project involves building an EVM sniper bot with the following functionalities: - **Automated Liquidity Pools searching**: The bot must be running 24/7 and be searching for new liquidity pools with pre-set conditions (pool size etc....) - **Automated Buying and Selling**: The bot should execute trades automatically based on predefined conditions, without the need for manual intervention. - **Cross-Platform Support**: It should be able to operate across multiple trading platforms seamlessly, E.G. UniSwap, PancakeSwap, QuickSwap etc..., same as it must support all EVMs (ETH, Base, BSC, Polygon etc...) This bot must also have website accessible UI (admi...
...staking. Key Features: 1. Decentralized Lending and Borrowing: Users should be able to lend and borrow digital assets securely. 2. Staking and Yield Farming: The platform should support staking for multiple tokens and offer yield farming opportunities to boost user profits. 3. Liquidity Pools: Allow users to pool their assets to earn transaction fees and rewards. Ideal Skills: - Proficiency in Solidity or Rust for smart contract development. - Familiarity with Solana, BSC, and Polygon blockchains. - Proven experience in DeFi platform building, particularly with yield farming, staking, and liquidity pool features. - Good understanding of DeFi concepts, blockchain security, and smart contract optimization. With these critical functionalities in place, our platform will stand out...
I need help in editing and testing my Solidity code of a new smart contract
...professional who is proficient in AWS, Laravel, NodeJs, PHP, and MYSQL for an upcoming project involving the upgrade and migration of my current applications. The selected candidate will work primarily with Angular, Laravel, NodeJs, PHP, and MYSQL apps. Primary project goals include: - Upgrading the AWS server to the latest version - Ensuring seamless migration of current applications with no interruption to service The applications involved in this project are responsible for managing a wealth of data, including both user profile information and authentication, as well as a range of digital content (videos, pictures, music, etc.). Ideal Skills & Experience: - Proven experience with AWS service upgrades and migrations - Proficiency in Laravel, NodeJs, PH...
I'm looking for a knowledgeable and experienced Smart Contract Developer Trainer who can teach me the ins and outs of Ethereum, Solidity, and the entire smart contract development process. Key Training Topics: - Introduction to Smart Contracts - Solidity Programming Language - Deployment and Testing of Smart Contracts Candidate Profile: - Strong expertise in Ethereum and Solidity - Proven experience in smart contract development - Ability to explain complex concepts in a simple and understandable manner - Prior experience in training or tutoring is a plus Your role will be to guide me through the creation, deployment, and testing of smart contracts on the Ethereum platform. I already have some experience with programming and smart contracts, so I'm looking...
We need to build a MVP, for which design screens are ready. We would like to have a full stack developer in who can do the job in AWS + NodeJS + Java + Angular + DB + Server. The app is provide a service to clients, include push notifications, whatsapp integration, client profile, rates.. The project will continue after MVP launch.
I'm looking for an experienced smart contract developer ...money. - **Burnable**: I need the token to be burnable, meaning that tokens can be destroyed or removed from circulation. - **Mintable**: The token should be mintable, allowing new tokens to be created. - **Pausable**: I also need the ability to pause the token contract in case of emergencies or necessary updates. The ideal candidate for this job should have a deep understanding of Ethereum and Solidity programming. Previous experience in creating token smart contracts with burnable, mintable, and pausable features would be highly preferred. The developer should be able to optimize the contract for security and efficiency, keeping gas costs low to ensure the best user experience while maintaining the integrity of the ...
I am seeking a developer who can assist me in integrating the Razorpay payment gateway into my existing project. Key Requirements: - Integrate Razorpay for one-time payments. - Enable support for recurring subscriptions. The project is built using React, NextJS, Prisma, and NodeJs. Your familiarity with these technologies is a plus. Your responsibilities will include ensuring: - Proper functionality for one-time payments. - Seamless support for recurring subscriptions. I expect the developer to have: - Proficiency in typescript, and the React ecosystem. - Prior experience in integrating payment gateways into applications. If you are confident in your ability to fulfill these requirements, I would be glad to discuss the project further.
I am looking for an explorer who can develop code using NodeJS in Javascript with Babel AST. Skills and Experience: • Needs someone who as worked with BABEL AST running with nodejs. • Very deep understanding of JavaScript. • Appreciation of flexibility in coding Application Requirements: This project involves conversing certain inputs into Babel AST (abstract syntax tree) code. This Babel AST when executed using no GS should be able to generate JavaScript or react code as the AST code specifies. I am inviting those who are excited by the prospect of delivering code that fits to an evolving spec. Let's build great digital tools together! The statements to consider are: 1. Import statement in JavaScript 2. Function declarations in JavaScript 3. JSX sta...
I want to update a nodejs server I am using on AWS EC2
As a savvy enthusiast in the blockchain space, I need a developer with a deep understanding of Ethereum blockchain to develop a smart contract for me. My end goal with this project is to create a token with fixed supply. Ideal Skills: • Proficient in Solidity • Proficient in Ethereum blockchain • Understands tokenomics, particularly fixed supply • Knowledgeable about smart contract development
...language processing, and will be primarily deployed on web-based platforms. In terms of functionality, the key requirements are as follows: - Voice Cloning: The ability to replicate voices is a crucial aspect of the project. This cloned voice should be able to deliver the same tone, pitch, and inflections as the original speaker. So I am looking for someone to build a server side application in NodeJS, Python, or Java that could analyze a persons voice and clone it. Then the 2nd function to build would be a text to speech function that could use the learned voices. -Voice Recognition: A solid understanding of voice recognition technology is also required, as the personal assistant should be able to accurately understand and interpret user commands and queries. - Text-to-Spee...
The project is for you to make my online marketplace website live. The code is on the server but not deployed yet. The focus of the platform is to sell educational lessons online. You must a specialist in Linode, MongoDB, and Nodejs for this assignment. Do not apply unless you are an expert at these. This project will also require very good skills in JavaScript, Stripe, PayPal Marketplace API, MEAN Stack, PayPal, Angular version 10.0.11 (We are not going to upgrade that version of Angular) KEY REQUIREMENTS: - Deployment of website to live environment on Linode. - Ensuring full functionality of the website selling digital educational products. The code is on the server but not deployed yet. It is not connected with domain yet. You will need to make a small change from the code end....
As the project lead, I'm urgently requiring an experienced Full Stack Engineer with substantial knowledge & proficiency in Blockchain technology. This is an urgent hire, and I need the project to be completed within the next month. Key Qualifications: • Solid technical understanding of Solidity, JavaScript, HTML, CSS, TypeScript. • In-depth experience using Truffle, React, MERN, Hardhat. • Prior experience with Blockchain, Ethereum, Smart Contract, ICO, IDO, NFT, DEX, DeFi is highly desirable. • Strong problem-solving skills, with an ability to hustle and deliver under timelines. Please ensure you're comfortable with the above languages and frameworks before applying. Looking forward to meet qualified enthusiasts swiftly!
As an enthusiast in the world of cryptocurrencies, I need a proficient Solidity developer with a good grasp of blockchain technology to assist me in creating a smart-contract for token creation specifically on the Ethereum platform. Your duties will include: - Designing and deploying a smart-contract in Solidity language. - Ensuring the smart-contract is functional for token creation. - Implementing a wide-ranging bot defense strategy to protect the smart-contract from bots. Skills & Experience: - Advanced knowledge of Solidity and Ethereum blockchain platform. - Proven track record in successful smart-contract deployments. - Experience in crafting and deploying comprehensive bot defense strategies. - A solid understanding of token creation process. The ide...
I'm looking for a skilled developer well-versed in both NodeJS / javascript and networking to create a TCP proxy server client for my project. Key Features: * The TCP proxy server client must support HTTP/HTTPs. * Ensure it's cross-compatible and functions seamlessly on both Android and iOS and desktop. Additional Requirements: * The client should have strong capabilities to handle multiple simultaneous connections. * Previous experience in load balancing and traffic monitoring would be a definite advantage. Please bid only if you have extensive experience with both Flutter and networking. Your bid should include any similar projects you've completed. *More details about the project: I will include both a golang & java based client side proxy server for refer...
I have a platform. Sometimes customers can write. You will get errors, if it is a problem in platform, just check system and restart nodejs. Your responsibilities would include: You won't be writing code for Node Js, but you can instantly fix minor bugs. You should be able to log in to the virtual server and restart Nodejs. Ideal Skills and Experience: - Proficient in NodeJS It needs to be next to the computer. Suitable for remote working system. Incoming messages should be responded to immediately. On average, you receive 5-6 messages per week.
Requirements: 1. Need a basic ERC20 token that should be created using openzepplin. 2. No additional functionality needed. Skills required: Solidity, Nodejs
I am in need of a skilled developer who can create a solid, reliable ERC-20 smart contract. The primary goal of this contract will be the creation of a token. Therefore, I'm looking for someone with the following skills and experiences: - Proficiency in Solidity and Ethereum smart contracts. - Previous experience creating ERC-20 tokens. - An understanding of token standards and best practices. - Ingrate the smart contract with website using You must start today and deliver in 24 hours.
I am seeking a skilled Solana / Rust developer with experience in creating crypto projects to help me build a raffle platform. ...system, a ticket purchasing system, and a mechanism for distributing prizes. - You will be working with my specific design in mind, so attention to detail and the ability to implement a pre-existing design is essential. Ideal Skills and Experience: - Proficient in Solidity development - Previous experience with crypto projects - Experience with developing raffle or gambling projects is a plus - Strong attention to detail and the ability to implement a specific design If you are a developer with a good understanding of Solidity, crypto projects, and raffle systems, I would love to hear from you. Please provide examples of similar projects yo...
We are seeking a skillful app developer to FINISH a beauty professionals bookings application that will be available on both Android and iOS platforms. We are in the final stages of building the app. Most of the front end has been developed and finished and some API's are already created in the back end. The front end is React Native and the back end NodeJS. Our app has 2 focus groups: Beauty professionals and clients Main features for clients include: - Find and book professionals based on your area - Book and pay through the app - Leave reviews and comment/like photos - In app chat with professionals Main features for professionals include: - Setting up business profile with services, photos, prices, policies, bio etc. - Built in calendar features - Synchronisation of Go...
I am in need of a skilled developer who can create a solid, reliable ERC-20 smart contract. The primary goal of this contract will be the creation of a token. Therefore, I'm looking for someone with the following skills and experiences: - Proficiency in Solidity and Ethereum smart contracts. - Previous experience creating ERC-20 tokens. - An understanding of token standards and best practices. - Ingrate the smart contract with website using You must start today and deliver in 24 hours.
I'm starting a new enterprise and require a proficient developer for building a video calling app that can run seamlessly on Android and iOS. Knowledge of Flutter, NodeJS and ReactUs is essential to navigate this project successfully. The app should cater to both one-to-one and group calls, enabling users to communicate flexibly. Integrating the app with Connectycube would be an added advantage. The design needs to be minimalistic, practically inclined toward high usability rather than flashy animations. This will drive users to enjoy a smooth user-experience, aiding in seamless navigation through the app. In summary, I need: - High proficiency in Flutter, Node.JS, and ReactJS - Experience in integrating Connectycube - Ability to deliver a minimalistic yet highly usable des...
The project is for you to make my online marketplace website live. The code is on the server but not deployed yet. The focus of the platform is to sell educational lessons online. You must a specialist in Linode, MongoDB, and Nodejs for this assignment. Do not apply unless you are an expert at these. This project will also require very good skills in JavaScript, Stripe, PayPal Marketplace API, MEAN Stack, PayPal, Angular version 10.0.11 (We are not going to upgrade that version of Angular) KEY REQUIREMENTS: - Deployment of website to live environment on Linode. - Ensuring full functionality of the website selling digital educational products. The code is on the server but not deployed yet. It is not connected with domain yet. You will need to make a small change from the code end....
More details: What specific tasks do you need the Node.js developer to perform? certification on hackerrank and get the certificate on my name Do you require the Node.js developer to have a certification on HackerRank and receive the certificate in their own name? no in my name Do you want the Node.js developer to complete the certification on HackerRank using your personal account and receive the certificate in your name? use their account but use my details
Who We Are? We are a building a Defi protocol that will offer trading strategies on the blockchain which no other protocol is offering until today, hence w...Your primary tasks will involve: - Front-end Development: Build and optimize interactive, user-friendly front-end interfaces using React.js, TypeScript, and Material-UI. - State Management: Implement robust state management solutions using Redux and React-Redux. - Back-end Interaction: Develop features that interact seamlessly with APIs, including those interfacing with smart contracts using Solidity and ethers.js. - UX/UI Design: Assist in the design process with a good grasp of UX/UI principles; experience with Figma or similar tools is desirable. - Deployment: Utilize Vercel for deploying and managing application services e...
