The Best Smart Contracts Developers For Hire In the United Kingdom

Check out Smart Contracts Developers in the United Kingdom with the skills you need for your next job.

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$40 hourly
- 5.0/5
- (6 jobs)
This is Rohan, Business Manager of TAFSOL TECHNOLOGIES Group!! 🎯 Aiming to deliver $10M+ Projects in 2023-2024 28th profound member of the OpenJS Foundation among other tech giants including Google, Microsoft, IBM, Uber and Coinbase, etc. TAFSOL Technologies is an Award-Winning Digital Agency Recognized by Clutch. co and Manifest as: 1. TOP B2B (Business-to-Business) SERVICES by Clutch. co in the Mobile App Development category. 2. MOST REVIEWED COMPANIES by The Manifest in the Software Development category. Our team of skilled professionals has extensive experience in providing a wide range of digital services such as: ✅ Logo Designing to give your business a Brand Identity ✅ Graphics Designing to make your customers fall in love with ✅ Website Design and Development that tells your business story and sells your products/services globally ✅ Mobile App Design and Development to make your business available at your customers' fingertips ✅ CRM Design and Development to effectively manage your customers ✅ SAAS-based platform Design and Development to streamline your business processes and increase efficiency ✅ ERP solutions Design and Development to integrate all business operations and provide real-time insights ✅ Blockchain Development to create decentralized platforms, decentralized applications (dApps), and smart contracts based on Blockchain networks, Ethereum, BSCSCAN, Solana, Polygon, etc. At TAFSOL, we understand that having a strong online presence is crucial to the success of any business. That's why we take a comprehensive approach to our services, ensuring that every aspect of your digital presence is optimized for maximum impact. From creating eye-catching logos to developing fully-functional and user-friendly websites, web apps, and mobile applications. What we Offer: ✅ 100% Client Satisfaction Rate ✅ 200+ Years of Accumulated Team Experience in IT Services ✅ 1000+ List of Satisfied Clients ✅ 100+ In-house Resources ✅ 42+ Countries in Which Our Clients are Based ✅ Quick Response Time of less than 2-3 Hours ✅ 5 Star Rated Profile Across All Platforms ✅ Dedicated Project Managers with Fluent English ✅ Support Services are available 5 days a week in EST, PST, MST, and GMT time zones. ✅ Physical Presence in the UK, USA, and PK Let's start chat here on Upwork.com so we can discuss your requirements in detail and share our ideas with you. You can also google us “Tafsol Technologies” and enjoy exploring more about our amazing services and reviews. Thanks for Visiting our Profile!!

Smart Contracts
NestJS Development
NFT
Material Design
Blockchain Development
ERC-20
NFT Design Customization
Storybook
Solidity
ERC-721
MERN Stack
Smart Contract
Next.js
JavaScript
TypeScript
$35 hourly
- 5.0/5
- (14 jobs)
With 7 years of experience in Full Stack Development, My main objective is client satisfaction, security and code quality. I'm good at problem solving skill so you'll get best idea/logic for your product/project. 𝐇𝐞𝐫𝐞'𝐬 𝐰𝐡𝐚𝐭 𝐈 𝐛𝐫𝐢𝐧𝐠 𝐭𝐨 𝐭𝐡𝐞 𝐭𝐚𝐛𝐥𝐞: Languages: - JavaScript (ReactJS, NextJS, NodeJS) - Python - Solidity Databases: - MongoDB - PostgreSQL - MySQL Blockchain Skills: - Blockchain Protocols - Copy trading tricks - DEFI - Ethereum Dapps - Ethereum Smart Contracts - Ethereum NFTs and Tokens - Telegram Crypto Bots - Telegram Mini Apps - NFT Marketplace - Staking Dapp - Token Launchpad and Token Crosschain Bridge - Escrows - Smart Contracts - Smart Contract Audit - Exchange development (CEX) - Decentralized exchange work (DEX) - ICO/IDO - Wallets - TradingView configuration - Metaverse Blockchain Development Tools: OpenZeppelin Truffle - MetaMask - Wallet Connect - Ganache - Remix IDE - Geth - Web3py - Web3.js - Ethers.js - Infura - Brownie - Alchemy Blockchain Platforms: - Bitcoin - Ethereum - Binance Smart Chain (BNB) - Avalanche (AVAX) - Polygon (MATIC) - Uniswap (UNI) - TRON (TRX) - Decentraland (MANA) - PancakeSwap (CAKE) 𝐋𝐞𝐭'𝐬 𝐜𝐨𝐧𝐧𝐞𝐜𝐭 𝐚𝐧𝐝 𝐞𝐱𝐩𝐥𝐨𝐫𝐞 𝐭𝐡𝐞 𝐩𝐨𝐬𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬 𝐨𝐟 𝐰𝐨𝐫𝐤𝐢𝐧𝐠 𝐭𝐨𝐠𝐞𝐭𝐡𝐞𝐫!

Smart Contracts
NFT
MERN Stack
Ethereum
Blockchain Architecture
Solana
Smart Contract
Blockchain, NFT & Cryptocurrency
DApp Development
Blockchain Development
Cryptocurrency
MySQL
MongoDB
Node.js
React
$50 hourly
- 5.0/5
- (4 jobs)
Hello! I'm Asif, a highly skilled Full Stack Blockchain Developer with over 10 years of experience in the technology industry, including a decade specializing in blockchain development. My career is marked by a proven track record of delivering over 100 successful blockchain projects for both startups and Fortune 500 companies, driving innovation and efficiency across various sectors. I have a comprehensive understanding of the blockchain ecosystem, with expertise spanning smart contract development, decentralized application (DApp) creation, and full-stack blockchain architecture. I excel in using platforms such as Ethereum, Hyperledger, and Binance Smart Chain, ensuring that your projects leverage the best available technology. Why Hire Me: 1. Over 10 years in technology and 10 years in blockchain development. 2. Delivered 85+ blockchain projects, including solutions for Fortune 500 companies. 3. Proficient in Ethereum, Hyperledger, Binance Smart Chain. 4. Implementing best practices for secure and compliant blockchain development. 5. Committed to staying at the forefront of blockchain advancements to deliver state-of-the-art solutions. Skills and Services: 1. Crafting secure and efficient smart contracts using Solidity, 2. Building user-friendly and scalable decentralized applications. 3.:Designing robust blockchain solutions tailored to your business needs. 4. Creating engaging and intuitive user interfaces with React.js 5. Developing powerful back-end systems using Node.js. 6. Tokenization and NFTs: 7. Seamlessly integrating blockchain technology into existing systems. Let's connect and discuss how I can help turn your blockchain vision into reality, providing you with a competitive edge in today's rapidly evolving digital landscape. Keywords: Solidity, Etherium, Dapp, Defi, Decentralized, Crypto wallet, smart contract, blockchain dev, Web3

Smart Contracts
Solidity
Ethereum
Decentralized Exchange
DeFi
Web3
Blockchain Architecture
Blockchain Development Framework
Layer 2 Blockchain
Blockchain, NFT & Cryptocurrency
Blockchain Tokenization
Blockchain Security
Blockchain
Crypto Wallet Development
Smart Contract
Blockchain Development
$70 hourly
- 4.9/5
- (128 jobs)
I have over 16 years of experience in web applications development and project management and over 10 years in mobile. In last 12 years with my team we have delivered over 200 successful projects such as custom CRM & ERP systems, marketplace and e-commerce platforms, entertainment applications, Blockchain software (marketplaces, Metaverses) etc. My main focus is creation of successful end-products instead of classical way of cooperation "to write as much code as possible for as much $ as possible". I'll be glad to help you with architecture and business decisions, development and tech management to get your project from the very beginning to release of successful, competitive product. Business areas I'm most experienced: - Financial - Blockchain, cryptocurrency - Real Estate - Travel, flights and hotels management Skills: - Front-end: React/VueJS, Web3 - Back-end: Node.js, Solidity - Databases: MySQL/PostgreSQL/MongoDB/Firebase

Smart Contracts
React
Smart Contract
Atlassian Confluence
Amazon Web Services
JavaScript
MySQL
React Native
Node.js
Blockchain
Product Management
Jira
Project Management
$50 hourly
- 4.4/5
- (22 jobs)
Hi, I'm Fasih, a full-stack JavaScript and Solidity developer with over 5 years of experience in developing and deploying scalable, reliable, and robust web applications. I'm also an AWS Certified Solutions Architect - Associate. My skillset includes:- Frontend: - React, Redux - TypeScript & JavaScript - Apollo Client - Material-UI, Tailwind CSS, AntD - Bootstrap - HTML5, CSS3, ES5, 6, 7+ Backend: - NodeJS, monolith & Serverless - Database Concurrency - Production System Stability - NGINX - Backend Architecture: Client-Server, Producer-Consumer. - MongoDB Optimisations - Web hooks - REST API, GraphQL - Mongoose - Docker Deployments - Firebase DevOps: - Automated Deployment Pipeline with AWS CDK: CI/CD, Auto-rollback, Canary, Staging, Prod, Manual Approval, Slack Notifications. - AWS Services: Lambda, API Gateway, CloudFront, AWS KMS, IAM, S3, Cognito, CodePipeline, EC2, SES, SNS, SQS, ELB, and similar ones for running a large-scale workload. Databases: - NoSQL: MongoDB, DynamoDB, Firestore, Firebase Realtime DB - SQL: MySQL, PostgreSQL, Aurora, AWS RDS - Database Design Software Engineering: - Requirements, Modelling, Design, Testing - Version control: GIT, SVN - Methodologies: Scrum, agile I have stellar work ethic, quick learning ability and fast adaptability. I am a team player and I always put in new ideas. Always looking to learn, I can adapt to your specific needs. With a commitment to always provide efficient, accurate, cost-effective, and on-time solutions, I ensure my clients' satisfaction. Looking forward to working with you!

Smart Contracts
GraphQL
Stripe
React
Amazon Web Services
AWS Lambda
Truffle
Firebase
RESTful API
Amazon API Gateway
Amazon S3
Solidity
Node.js
Ethereum
web3.js
Smart Contract
$50 hourly
- 4.9/5
- (32 jobs)
Hamza is a passionate software engineer with a track record of taking large-scale web applications from the drawing board to production. He developed the world's first web-based multi-threaded setup ceremony that leverages Rust and WASM to run cryptographic functions. He has extensive front-end knowledge using JavaScript, browser APIs, React, WASM, TypeScript, and Rust. In the back end, he excels with Node.js, Solidity (Ethereum), and web3 development. He is also an avid blockchain developer and has worked on multiple leading edge web3/Ethereum projects such as Aleo, radixdlt and NFT projects (kgpnft, skulz). Ethereum tools that he is familiar with are: Solidity, Hardhat, chainlink, polygon and aave He quickly realised after a few years that the companies he worked with were looking for much more than just an engineer. He figured out that most of his client's wanted someone who they could trust as a technical partner for their products. Someone, who can give suggestions right from what tech should be picked up, how to get the roadmap right, how should we plan the product launch, and a lot more. He loves to speak with people, help them find the perfect solutions for their problems, and help bring their ideas to life. As of today, He always strives to keep the quality high and every request is considered with extraordinary care.

Smart Contracts
Smart Contract
web3.js
Webflow
Ethereum
Solidity
NFT
AWS Lambda
Node.js
React
GraphQL
Web Development
TypeScript
Rust
JavaScript
Responsive Design
$95 hourly
- 5.0/5
- (11 jobs)
✅🌟CCSM Elite Certified (Checkpoint Certified Security Master Elite)🌟✅ 🌟Experienced Network Security Specialist with 15+ years history with CheckPoint, Cisco ASA, and Juniper SRX Firewalls🌟 ⚒Extensive work experience with Check Point VSX, MDS, Quantum Smart-1 Cloud, Check Point Infinity, CloudGuard Connect/Edge, Harmony EndPoint, CloudGuard SaaS (Now Harmony Email & Office), CloudGuard Connect/Edge (Now Harmony Connect and Quantum Edge) alongside working with Enterprise level clients⚒ ⚡Done numerous CheckPoint upgrades over the last ten years on different topologies, including standalone, distributed, cluster and virtual environments from R75.x to R81.x⚡ 🥇Cisco ASA firewall experience with valid CCNP Security (VPN) certification🥇 💡Juniper JNCIA Junos certified💡 🌟 WHY CHOOSE ME OVER OTHER FREELANCERS? 🌟 ⚡ Client-Focus: I focus on providing VALUE to all my clients. ⚡ Work Ethic: Going the “extra mile” is core to my work as a Freelancer. ⚡ Responsiveness: I am responsive and keep all lines of communication readily open with my Clients. ⚡ Kindness: One of the most important aspects of my life is to treat everyone with respect, be empathetic in all situations.

Smart Contracts
Blockchain
Smart Contract
Cisco Certified Network Associate
Python
Full-Stack Development
Network Administration
Game Development
Web Development
Check Point
App Development
iOS Development
Firewall
Cisco ASA
Network Security
$90 hourly
- 5.0/5
- (26 jobs)
Hey! I'm Vlad, a technologist, tech architect and founder of the London-based TGR tech Agency. What started as an enthusiasm for Web3, quickly expanded into an all-encompassing emerging tech agency. Now, TGR touches every corner of emerging tech, from AI and Web3 to AR and biometrics. With 60+ projects under our belt across 15 countries, we're not just about numbers; we're genuinely passionate about assisting businesses to understand, build, and integrate these groundbreaking technologies. Our tech stack includes industry-leading tools like OpenAI, GPT-3, ChatGPT, TensorFlow, Dialogflow, Pinecone, Vector, Python, React, Vercel, Javascript, MySQL, RASA, Restful API, MongoDB, Solidity, Rust and so much more. Avatar/3D/AR design/tech stack is mainly: Blender, Maya, Babylon JS, Three JS, Unity, Unreal, and Elevenlabs. Got tons of experience building complex tech products: ― Slam Girl AI chatbot, a superhero character created by Stan Lee. She was fine-tuned on a version of ChatGPT and is capable of answering a vast array of questions about superheroes. ― Built MassageBook AI Bot, which is connected to 40K+ vendors in the US. Helped the business reduce customer support costs by 30%. Helps users choose the service they need in under 1 minute. ― One of our recent successes was launching Pangeapass, a smart identity verification app that uses AI to scan e-documents through NFC technology and identify e-chip locations. ― Developed a Web3 marketplace (Stadio Labs) with $1m VC-backed funding and integrated physical utility features for the NFTs Would love to help you with your next project! If there is anything you would like to discuss, feel free to DM me here to get started. Happy to meet for coffee in London, in case you are based somewhere close by! 🙌

Smart Contracts
Smart Contract
Blockchain Architecture
Ethereum
Blockchain Development
NFT
Solidity
Marketing Analytics
Music NFT
NFT Marketplace
Ecommerce Website
Blockchain, NFT & Cryptocurrency
Conversion Rate Optimization
$40 hourly
- 5.0/5
- (4 jobs)
I am a certified professional Blockchain Developer with vast years of experience in Blockchain development with expertise in integrating third-party APIs in web3 and Blockchain Dapps. Frontend Development(HTML, JavaScript, CSS, Bootstrap, jQuery) JavaScript libraries (React.js, Vue.js, Angular.js) JavaScript Backend Framework(Node.js, [login to view URL]) PHP Framework(Laravel, CodeIgniter, WordPress) Database(MySQL, MongoDB, Firebase, PostgreSQL) Web Design My Blockchain Specialisation Areas: ✅Smart Contracts development using Solidity ✅Web3 integration ✅Unit testing and testing using test nets such as Ropsten and Goerli networks. ✅Metamask wallet integration ✅NFT Minting DApps and marketplaces (Polygon, Avalanch, Ethereum, Solana, Binance, )In-depth knowledge of ERC20 & ERC721 Smart Contracts ✅Deployment to the main net using Infura. ✅NFT contract ✅Token/ coin Contract ✅DeFi platforms (any dApp, Binance Smart Chain, Ethereum, EOS, Tron) ✅ICO Applications ✅Token on standards- ERC 20, ERC 721, ERC 721A, ERC1155, BEP20. Token on standards- Spl tokens ✅Web Development for Custom Business Web Applications ✅Front-end and Back-end Development ✅Content Management Development ✅Stock exchanges (like Binance, Coinbase, etc) ✅Wallets (crypto/fiat) ✅Blockchain block explorers ✅High-End Enterprise Web Applications ✅Develop Custom RESTFUL APIs For Mobile Applications ✅Blockchain Development ✅Defi EXchange ✅BEP1155 ✅Truffle ✅NFT minit ✅Open sea minting Frameworks & Tools we can use : ✅React for UI ✅Ether JS ✅Hardhat ✅MetaMask Wallet Integration ✅Mocha and Chai tests. ✅Moralis ✅Dapp ✅Defi ✅BSC I have a high standard of creativity in Art creation and NFT collections. ✅NFT Concept and Art ✅NFT 2D Artwork ✅ NFT Art Creation | 2D, 3D, Anime, Pixel Art. ✅ Generative art and collections (10,000 NFTs) ✅NFT 3D Artwork ✅NFT Animations ✅NFT 3D Animations ✅NFT Design from scratch ✅Motion NFT Kindly connect with me if you are looking for these services or let me know if you have any questions, or would like to get into consultation with me. Thanks for reading Best Regards

Smart Contracts
Website Redesign
WordPress
JavaScript
Web Application
API Integration
Blockchain, NFT & Cryptocurrency
React
Smart Contract
NFT Marketplace
Solidity
DApp Development
Cryptocurrency
NFT Minting
NFT Collection Generation
$139 hourly
- 5.0/5
- (19 jobs)
Hi there! I'm Malcolm Zoppi, the founder of GZ Legal and a qualified solicitor. *Please note: this account was previously ran by my colleague, Lia. Contact me now for a FREE consultation.* We help U.K. SMEs minimise risks & save money ⬇️ via: ✅ Airtight commercial contracts. ✅ Successful M&As. ✅ Accurate accounting & tax planning. About my firm, GZ Legal: 👉 Low, fixed fees. 👉 70+ reviews, all five stars. 👉 100% of clients surveyed recommend us 10/10. 👉 220 + clients. 👉 600+ legal documents drafted. 👉 No hidden costs or unexpected bills. We also help with: ®️ Registering trade marks. 🤝 Alternative dispute resolution. 👨‍💻GDPR compliance. 📣 SEO marketing. Interested? Contact me now.

Smart Contracts
Legal Agreement
Service Level Agreement
Contract Manufacturing
Business Services
Legal Research
Smart Contract
Data Privacy
Contract Law
Non-Disclosure Agreement
Contract
Legal Drafting
Employment Law
Contract Negotiation
Legal
Contract Drafting
$45 hourly
- 5.0/5
- (1 job)
Hello, I am a blockchain and metaverse developer with years of rich experience. Well-versed in smart contract dev and web3 technology on EVM and Solana. These are my services: 1. NFT crypto website, NFT mint, staking, reward, NFT game, NFT marketplace, etc 2. ERC20/Bep20/TRC20 token, web3 & smart contract 3. ICO, IDO, IFO 4. Cryptocurrency trading and arbitrage bot 5. Customized DEX and Defi 6. DApps and smart contract on Ethereum, Solana, Cardano, Near, Algorand, etc 7. Betting, Play to Earn 2D/3D Game 8. Web and mobile app development(Frontend and backend) I am ready to go and will start working right away for your business success. Please feel free to reach out to me if you have any projects or new job opportunities. Best Regards

Smart Contracts
Crypto Exchange Platform
Cryptocurrency
DApp Development
Blockchain
Game
Rust
Solidity
Ethereum
Smart Contract
Web3
Metaverse
NFT
Solana
DeFi
JavaScript
$50 hourly
- 5.0/5
- (2 jobs)
DEFI | Cryptography | zkEVM | Cosmos SDK | Metaverse | P2E game | Gambling | NFT | | DEX | Solidity | Rust | Hardhat | Truffle | Web3.js | Ether.js | React | Next.js | Node.js | Typescript | PHP | AWS | eCommerce | Frontend | Backend | Python | AI-ML Senior Software Engineer with a high-level educational background in computer science, and professional work experience in design and development from scratch, maintenance, pro-coding style, code review, and testing. I love coding and challenging new technologies, and as a problem solver, I come up with creative and effective ideas to meet deadlines. My services: ✅Full Stack Web Development ✅Blockchain Development: New Blockchain, DEFI, NFT mint, staking, marketplace, DEX, Crypto Wallet, Play to Earn game, Lending, and Borrowing, etc. ✅Customized CRM / ERP ✅Database Management & Development ✅Hosting and Cloud management ✅Development of various bots ✅Integrations of Softwares & IT Security Implementations ✅OpenAI and ChatGPT integration, AI model implementation. My Skills: ✅Blockchain: Solidity, Rust, Move, Web3.js, Ether.js, Wagmi, AlchemyAPI, Infura, Chainlink, Proxy(Transparent/UUPS) ✅Frontend: React, Angular, Vue.js, Next.js, Nuxt.js, Redux, Sass, TailwindCSS, MaterialUI, ChakraUI, Antd, Vuetify, Typescript, ES6/ES7. ✅Backend: Node.js(Express.js, Nest.js), Python(Django), PHP(Laravel, Symfony, CakePHP, Yii) ✅Database: MongoDB, MySQL, PostgreSQL ✅CI/CD: Git, Docker, Azure Devops, Trello, Slack, Jira, AWS, Heroku, Netlify, Firebase ✅Other: Rust, Go, C#, C/C++, Java Thank you for taking the time to review my profile. I look forward to creating good things together. Sincerely, Javan

Smart Contracts
Angular
Web Development
Tailwind CSS
Web3
React
Cryptocurrency
Blockchain
Golang
Python
TypeScript
PHP
Node.js
Rust
Solidity
Smart Contract
$35 hourly
- 5.0/5
- (1 job)
👋 Greetings! 😊 I'm Faheem, an experienced 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 and 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗘𝗻𝘁𝗵𝘂𝘀𝗶𝗮𝘀𝘁 with over 𝟴+ 𝘆𝗲𝗮𝗿𝘀 of specialized expertise in 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 (𝗥𝗲𝗮𝗰𝘁𝗝𝗦, 𝗡𝗼𝗱𝗲𝗝𝗦, 𝗘𝗖𝗠𝗔𝗦𝗰𝗿𝗶𝗽𝘁), 𝗪𝗲𝗯𝗔𝘀𝘀𝗲𝗺𝗯𝗹𝘆, 𝗥𝘂𝘀𝘁, 𝗦𝗼𝗹𝗶𝗱𝗶𝘁𝘆, 𝗚𝗼𝗹𝗮𝗻𝗴, 𝗚𝗿𝗮𝗽𝗵𝗤𝗟, and much more. When it comes to web development, I have a remarkable ability to create stunning websites and deliver top-notch services. From crafting custom themes that perfectly suit your vision 🎨💪 to effortlessly tackling complex projects, my diverse portfolio spans various business types: 🛍️ E-commerce shops 📝 Review-based systems 📂 Custom directories 📅 Events planners 🎮 Game scoring systems 🏢 Real estate 👥 Personal portfolios ...and many more! But that's not all! My true passion lies in the blockchain world, where I excel as a 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 with over 𝟱+ 𝘆𝗲𝗮𝗿𝘀 of experience! 🚀 Specializing in Bold (sans): 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁, 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻, 𝗦𝗲𝗿𝘃𝗲𝗿 𝘀𝗲𝘁𝘂𝗽, 𝗪𝗲𝗯 𝟯.𝟬, 𝗗𝗲𝘃𝗢𝗽𝘀, 𝗰𝘂𝘀𝘁𝗼𝗺 𝗯𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁, 𝗮𝗻𝗱 𝗔𝗣𝗜 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 with other services. My expertise covers a wide array of technologies: 🔨 JavaScript (ReactJS, NodeJS, ECMAScript) 🌟 WebAssembly 🌟 Rust 🌟 Solidity 🌟 Golang 🌟 GraphQL 🌟 PostgreSQL 🌟 LevelDB, RocksDB 🌟 PlayCanvas, WebXR 🌟 Blockchain Protocols 🌟 Copy trading protocols and architecture 🌟 Smart Contract Audit 🌟 Exchange development (CEX) 🌟 Decentralized exchange development (DEX) 🌟 Arbitrage and Trading bots development 🌟 ICO/IDO/IBCO/LBP/IFO 🌟 Flash loans bots 🌟 Front-running, snipe, and sandwich bots 🌟 TradingView configuration 🌟 Meta, Metaverse, DeFi, NFT, GameFi I've contributed to notable projects like 𝗘𝗹𝗿𝗼𝗻𝗱 (𝗘𝗚𝗟𝗗), where I successfully launched an 𝗜𝗘𝗢 and developed a cutting-edge sharding system. 🌐 Additionally, I've been involved in building and auditing secure payment gateways for projects like 𝗖𝗿𝘆𝗽𝘁𝗼 𝗪𝗮𝗹𝗹𝗲𝘁 𝗕𝗿𝗲𝗮𝗱 (𝗕𝗥𝗗) and 𝗖𝗼𝗶𝗻𝗣𝗮𝘆𝗺𝗲𝗻𝘁𝘀, ensuring the safe storage of cryptocurrency funds. With hands-on experience in various services and technologies like 𝗔𝗪𝗦, 𝗟𝗶𝗻𝘂𝘅, 𝗗𝗼𝗰𝗸𝗲𝗿, 𝗝𝗲𝗻𝗸𝗶𝗻𝘀, 𝗚𝗶𝘁, and more, I guarantee the stability and security of your blockchain applications. 🛡️ So, whether you're looking for a top-notch Full Stack Developer to create visually appealing and responsive websites, or a Blockchain Expert to revolutionize your decentralized projects, I'm your go-to professional! 🌟 Let's connect over Zoom and discuss your project further. 📞👀

Smart Contracts
MongoDB
Amazon Web Services
Web3
Solidify
DeFi
Back-End Development
Blockchain
React
Docker
NFT
Blockchain Architecture
Ethereum
Smart Contract
Node.js
JavaScript
$70 hourly
- 5.0/5
- (2 jobs)
Experienced Senior Blockchain Developer with a track record of 5 years in leadership roles, adept at guiding teams across diverse scales and complexities. Proficient systems programmer well-versed in Layer 1 and Layer 2 protocols, with a fervent dedication to blockchain technology and decentralization. Demonstrated expertise in Bitcoin development, possessing a deep understanding of its ecosystem and contributing meaningfully to its advancement.

Smart Contracts
Tailwind CSS
Next.js
NestJS
React
DeFi
Blockchain
Bitcoin
TypeScript
Rust
Solidity
Golang
Solana
Ethereum
Smart Contract
NFT
$45 hourly
- 5.0/5
- (1 job)
I am a highly skilled full stack and blockchain developer with a strong problem solving skills and knowledge about the blockchain and web application development. In more than 10 years of experience, I have developed several projects including POS, ERM, LMS system and e-commerce websites. Also familiar with blockchain development, I have developed several blockchain projects such as DEX, CEX, Dao, Token Bridge and several smart contracts for different aims. As a developer who are always keen on the new technology, I mastered about the new technology - ordinal - which is based on UTXO blockchain. I prefer using modern web frameworks such as React.js, Next.js, Vue.js and also good at development of PHP frameworks such as Laravel, Yuii, Symfony etc. Here are my skills of development. Blockchain development • Bitcoin, Litecoin, Dogecoin, Ethereum, Solana, Polygon, Cosmos • Solidity, Rust, FunC, GoLang, Bitcoin Script, Web Development • React.js, Vue.js, Next.js, Laravel, Yuii, Symfony, Electron • Node.js, Nest.js, Express.js • Javascript, TypeScript, PHP, Jquery, AJAX, Axios • HTML 5, CSS 3, .LESS, History API • MongoDB, MySQL, postgreSQL, SQLite • AWS, Serverless AWS, lambda, CI/CD pipeline • Firebase, Cloud functions Mobile development • React-native, Flutter, Kotlin

Smart Contracts
React Native
NestJS Development
Mobile App Development
NFT
Bitcoin
Smart Contract
Solana
Rust
Solidity
Blockchain Development
Web Development
Node.js
TypeScript
Next.js
React
$80 hourly
- 5.0/5
- (4 jobs)
I have been working as a technology architect and lead engineer for more than 10 years. I have developed highly complex engineering apps architecture on different blockchains. I am an expert in Finance/Banking platforms, Defi, Smart contracts, Cross-blockchain protocols, Yielding/Farming, Staking protocols, and end-to-end frontend/backend integration. Why Me? ● Passionate meeting aggressive deadline with highest code quality ● Expert in end-to-end Software Development Life Cycle using Agile Development Methodologies ● Free Technical support of 4-6 weeks after releasing the product to the Production ● Available 40+ hrs/week ● Full satisfaction guaranteed I can demo some of the projects I developed from requirements specification to deploying in production including setting up AWS/GCP infrastructure. Expertise: ● Ethereum & Bitcoin blockchains expert ● Cross-blockchains like Polkadot ● Multi-layer blockchains like Matic ● End-to-end Defi protocol development experts including yielding/farming, staking, AMM, liquidity mining ● Experts working with Uniswap, 1inch, and other DEX aggregator protocols ● Cryptocurrency API Integration handling millions of data points from data providers like CoinMarketCap, CoinGeko, and On-chain data ● Decentralised Applications (DAPPs) ● JavaScript/ Typescript Experts - Vue.js, React.js, Node.js, Eather.js, Web3.js

Smart Contracts
Ethereum
API
Cryptocurrency
Research & Development
Blockchain
Solidity
Smart Contract
React
Angular
MongoDB
Rust
Node.js
Python
$40 hourly
- 4.9/5
- (47 jobs)
Hello, I am a highly skilled full-stack developer with a deep understanding of both front-end and back-end development. Adept at ensuring code quality through the use of Acceptance Tests, Unit testing with PHPUnit, PSR Standards, and Design Patterns. Proficient in version control systems such as Git (Github, GitLab, Bitbucket), and familiar with issue trackers such as JIRA, Redmine, and Trello. Possesses a comprehensive tech stack including Backend expertise in PHP 5 & 7, Laravel 4 & 5, API development, Python, Django, Flask, and React Native. Strong front-end skills in JavaScript, jQuery, Vue.js, CSS, HTML5, AJAX, Bootstrap, and Node.JS. Experienced in working with databases such as MySQL and Firebase, as well as CMS platforms such as WordPress and Prestashop. Additionally, well-versed in programming languages including Kotlin, C, C++, C#, and Php As a developer, I place a great emphasis on the high quality, readability, and efficiency of my code - spaghetti is only good on your plate but not in your app. Other than that, I trust that good communication and transparency are quite frequently the keys to successful cooperation. My technical expertise covers: Code quality: Acceptance Tests, Unit testing with PHPUnit, PSR Standards, Design Patterns Version Control System: Git (Github, GitLab, Bitbucket) Issue Trackers: JIRA, Redmine, Trello My technology stack: Backend: PHP 5 & 7 / Laravel 4 & 5 / API / Python / Django / Flask / React Native Frontend: JavaScript / jQuery / Vue.js / CSS / HTML5 / AJAX / Bootstrap / Node.JS Databases: MySQL, Firebase CMS: WordPress, Prestahop Other: Kotlin, C, C++, C#, Php

Smart Contracts
NFT
Laravel
Mobile App Development
Blockchain
PHP
Node.js
Python
React Native
WordPress
Smart Contract Development
Web Application
Full-Stack Development
WordPress Development
React
Smart Contract
Software Architecture & Design
Progressive Web App
DApps
UI Graphics
$60 hourly
- 5.0/5
- (1 job)
An organized, collaborative, and highly skilled full stack developer with several years of professional experience in dynamic and agile work environments. Self-motivated and experienced professional who likes challenges and loves to solve complex problems. My repertoire includes programming languages such as React.js, Angular, Node.js, Typescript, React-Native, Python, SQL/No-SQL databases, theming with Bootstrap, MaterialUI, Tailwind, Ant frameworks using SCSS, and LESS. Be rest assured that your project will be planned and executed with professionalism you will be kept updated with progress.

Smart Contracts
Cryptocurrency
Flutter
Django
Laravel
Smart Contract
Angular
Node.js
Vue.js
React Native
Git
React
Web Development
JavaScript
TypeScript
PHP
Python
$50 hourly
- 0.0/5
- (0 jobs)
Hello, My name is Benjamin Jackson. I have over 10 years real work experience in web and about 2 years experience in blockchain development. For the last 10 years, I've built many API backend servers and websites with trending web frameworks. Nowadays, I mainly focus on blockchain development especially on ethereum & solana network. My Skills include solidity, rust, ethereum, solana, smart contract, node.js, nest.js, django, laravel, reactjs, nextjs, vuejs and angular. I can speak and write English fluently, can always be ready for video & voice call. Thanks.

Smart Contracts
Solidity
Smart Contract
NestJS
Nuxt.js
Python
Django
React
Node.js
JavaScript
PHP
Angular
Next.js
Vue.js
Rust
Ruby on Rails
$50 hourly
- 0.0/5
- (0 jobs)
Hello, welcome Starting from the middle of 2016 began proactively working on blockchain-related projects as a Blockchain software engineer. My experience range from creating both front-end blockchain applications to back-end architecture design and implementation, smart contract development, testing, auditing, and development for Fintech and other industries that need the power of decentralization, tokenization, and smart contracts. Expertise in Public Blockchain Platforms: Solana | Bot Engineer - Developing smart contracts by Rust Programming languages. - Developing RPC using client libraries such as Web3js. - Integration with crypto wallets such as Phantom. Deploying smart contracts on test networks as well as Solana mainnet. - Bot Development on various chain.(Trading bot, NFT bidding bot, betting bot and etc) Expertise in Private & Consortium Blockchain Platforms Hyperledger Fabric - Developing Chaincode using the Go/Rust Programming language - Developing proof of concepts using Hyperledger Composer. - Creating RESTful APIs for client applications to communicate with the blockchain network. ... I hold expertise with: -Solidity / Rust / Golang - JavaScript / React.js - MySQL / MongoDB / PostgreSQL / MSSQL - AWS / DO/ Heroku - GIthub / Gitlab / Bitbucket / Trello / Asana, etc. Here are the applications that I've built so far - Dapp, DeFi development - NFT game/marketplace development on Ethereum & Solana blockchains in Solidity & Rust & Golang - Ethereum & Binance Smart Chain token development on ERC20, ERC721, ERC1155, BEP20, BEP721 & BEP1155 protocols - ICO / ITO / IDO / STO, Cryptocurrency exchange & Cryptocurrency Wallet Development

Smart Contracts
Blockchain
DApps
Bot Development
Blockchain, NFT & Cryptocurrency
Cryptocurrency
Web3
Solana
NFT
Blockchain Architecture
Solidity
Rust
Ethereum
NFT Minting
DApp Development
Smart Contract
$100 hourly
- 0.0/5
- (0 jobs)
With 8 years in Blockchain and Cryptocurrency , I'm your go-to person for Blockchain, Web3, Backend work, Trading bots, Server setup. I'm all about the details, thriving on solving tricky problems with creative solutions. 1. Cryptocurrencies and Blockchain Development: Custom / Smart Contracts Creations & Implementation, Wallet app creation, Exchange website creation. 2. Cryptocurrencies Trading: Understanding, training, strategies providing & technical analysis, Code, implement strategies and maintain automatic trading bots on all exchangers for low, medium & high risk 3. Cryptocurrencies Investments :Strategies, Defi varieties, staking, farming, yielding & Liquidity providing, Token 4. NFTs : Coding, creation, minting and Marketplace (royalty, Lazy minting, Fiat integration, Multi-chain) 5. Defi solutions: Decentralized IDO Launchpad (Multi-chain, Single Chain), Centralized IDO Launchpad, Staking, Yield Farming, Lending/Borrowing Protocol, DEX Analysis Platform, Arbitrage Bots (Direct, Intra, Inter, Loop, Triangular), Flash Loan Arbitrage Bot

Smart Contracts
Legal Assistance
Company Registration
DApps
Crypto Wallet Development
Algorithm Development
MetaTrader 4
Web Development
Full-Stack Development
Forex Trading
Bot Development
Blockchain
Smart Contract
Blockchain Architecture
Crypto Exchange Platform
$40 hourly
- 5.0/5
- (1 job)
As a blockchain developer with expertise in Solidity, Smart Contracts, React, Node.js, Web3, and Rust, I bring a comprehensive skill set to the table. With a strong foundation in blockchain technology and decentralized applications (dApps), I specialize in designing and implementing secure and efficient smart contracts on platforms like Ethereum. My proficiency in React and Node.js enables me to develop user-friendly and scalable front-end interfaces, while Web3 integration ensures seamless interaction with blockchain networks. Additionally, my knowledge of Rust allows me to contribute to blockchain projects requiring low-level programming expertise. With a passion for innovation and a commitment to staying abreast of emerging trends, I am dedicated to driving the evolution of blockchain technology and creating impactful solutions for the decentralized future.

Smart Contracts
TypeScript
Next.js
NFT
Ganache
Node.js
React
Hardhat
Crypto Wallet
Web3
Crypto Exchange Platform
Blockchain
Solidity
Smart Contract
Docker
Python
$50 hourly
- 5.0/5
- (2 jobs)
🥇**Professional Blockchain Engineer (Solana/EVM)**🥇 I am a highly skilled blockchain engineer specialising in the development of Web3 products on the Solana and EVM ecosystems. ✅ Expertise in Solana blockchain development using Rust and Anchor. ✅ Professional experience with Solana validator codebase, including SVM, Jito Validator, Geyser plugins, gRPC and RPC interfaces, TPU, and more. ✅ Strong knowledge of cross-chain protocols, including LayerZero V2, Wormhole, CCTP, and others. ✅ Comprehensive understanding of blockchain protocol concepts. ✅ Proficient in Solidity smart contract development for EVM. ✅ Full-stack development expertise for building decentralised applications (dApps). Since 2020, I have been building robust decentralised applications on the Solana ecosystem, primarily using Rust and Anchor. Recently, I have focused on MEV bot development, involving customisations to the Solana validator code and multi-threading implementations, as well as on-chain game development. I am dedicated to the success of each project and willing to take on multiple roles as needed. You can expect: ☎️ Reliable communication 💻 Professional expertise ⏳ Strict adherence to timelines 🔥 Passion and dedication 🕊️ A collaborative and composed attitude Thank you!

Smart Contracts
C#
JavaScript
Full-Stack Development
Web3
TypeScript
DApp Development
Gaming
Cryptocurrency Trading
Blockchain
NFT
Solidity
Rust
Smart Contract
Solana
$999 hourly
- 4.3/5
- (63 jobs)
My primary strength lies in analyzing, debugging, optimizing and inventing complex algorithms that may involve advanced mathematics. Languages I have worked with: C++/C, Rust, Javascript, Typescript, Solidity, PHP, Python, Perl, (Object) Pascal, Objective C(++), Elixir, Haskell, Ruby, Basic, SQL, Java. Very strong in C++ and Javascript. IDEs I have worked with: Visual Studio Code, Visual Studio (several version across decades), Delphi, C++Builder, Turbo Pascal, Qt Creator, Emacs, Eclipse, Visual Basic Currently preferred frontend/backend stack: React + Node.js + MySQL/MariaDB/Postgresql/MongoDB Experience with • 3D rendering engines (OpenGL, OpenGL ES, Direct3D, Metal, ....) • Audio engines (DirectSound, Core Audio, Audio Units), encoders and decoders (ogg, mp3, flac, ffmpeg, ...) • Compression algorithms (huffman, arithmethic, LZW, BWT, ...) Past projects: • Project related to account abstraction using ERC-4337 • NFT browser extension for Chrome and Firefox integrating with OpenSea in Typescript/React + Node.js/MongoDB database • Vested staking smart contract in Solidity with Typescript web3 interface • Monero miner using C++ in Visual Studio & Qt targeting Windows, Mac/OSX (and Linux) • C++ TUI app using REST API and Websocket interfaces to several centralized exchanges • CELO blockchain app in Android app using React Native • Amfeix funds recovery project in Javascript/React and Node.js interfacing with Bitcoin RPC and web3 • Bitcoin and Ethereum wallet development • Shipment label website using cryptocurrency payments through BtcPay integrating with Shippo API and bitcoin node in Javascript/React and Node.js Decentralized exchange arbitrage trading bot developer • Scanning Ethereum for compatible exchange and ERC20 smart contracts • Engine: Javascript web3 interface in Node.js/MySQL Blockchain vulnerability scanning • Scanning the Ethereum blockchain for a specific vulnerability • Engine: Javascript web3 interface in Node.js Defi protocol studies • Studying of DeFi protocol YAM in solidity • Javascript web3 interface in Node.js to interact with smart contracts Blockchain Consensus Protocol • Ethereum fork by replacing PoW with the state-of-the-art PoS v4 iChing consensus protocol • Replacement of account keys with the BLS cryptographic signature scheme using the BLS-12-381 elliptic curve • Implemented in C++ Ethereum client • Interface code to import a BLS-12-381 library written in Rust into the C++ code

Smart Contracts
Blockchain Architecture
Binance Coin
Bitcoin
Ethereum
NodeJS Framework
OpenGL Shading Language
Cryptocurrency
OpenCL
Blockchain
Emerging Tech Consultation
Solidity
Smart Contract
JavaScript
C++
Node.js
$65 hourly
- 4.4/5
- (20 jobs)
I have been programming for 15 years, studying game programming at university and working at a web / mobile development company for 7 years. I am currently full time freelance, and have been mainly working on blockchain and Ethereum related projects since 2017. I have created all types of smart contract and web3 related projects including decentralised exchanges, blockchain games, custom tokens, defi platforms etc. I am highly experienced with EVM based smart contracts as well as other blockchains such as Solana. Blockchain development: Various blockchain based apps using Solidity and web3.js Web development: C sharp, ASP.net, SQL, JavaScript. Worked on large projects for clients such as BBC. Mobile development: React native, Xamarin, Objective C, Swift, Java. Over 10 mobile apps in the iOS app store and google play. Game development: C++, OpenGL, DirectX, various engines including a lot of Unity experience. Recently worked on games such as mobile Runescape as well as many indie game projects. I really enjoy delivering high quality structured code to my customers. I am very self motivated and look forward to working with you soon.

Smart Contracts
iOS Development
Android App Development
ASP.NET
Game Development
web3.js
Web3
Solana
Bitcoin
Ethereum
Layer 2 Blockchain
Blockchain, NFT & Cryptocurrency
Cryptocurrency
DeFi
Blockchain
Smart Contract Development
Smart Contract
Solidity
$28 hourly
- 4.9/5
- (2 jobs)
An analytical mind that can analyze and comprehend new or unfamiliar technologies. I'm an autodidact, highly adaptable to changes, a good team worker, analytical, organized, proactive, and creative, a problem solver, and a lifelong learner with an insatiable curiosity. Software developer with 15 years of experience in IT, 8 as a software engineer (full stack developer, mobile developer, DevOps, and management IT team experience). - Experience in project management, system analysis, and technical requirements. - Experience working with international companies and international stakeholders. - Experience with mobile development (Swift, Java, Ionic, React Native, and Flutter) from scratch to releasing and managing apps in the stores (Google Play & App Store). - Experience in DevOps, managing and deploying applications on AWS using EC2, RDS, S3, CloudFront, Route53, and other services; CI/CD (Github and Bitbucket). - Development skills in different languages (JavaScript, Dart, PHP, Swift, Java, Ruby). - Extensive experience in JS tools and frameworks such as React, React Native, Node, NextJS, Angular, and GraphQL. - Experience MongoDB, MySql, and Postgres; HTML and CSS (pixel-perfect skills).

Smart Contracts
Ethereum
Redux
Smart Contract
Web3
Amazon Web Services
Google Cloud Platform
AWS Lambda
AngularJS
Android
React Native
Node.js
React
TypeScript
MongoDB
JavaScript
$86 hourly
- 0.0/5
- (0 jobs)
I believe in technologies that can expand our horizons beyond what we are capable of imagining, and through my work I hope to contribute to the new education and computing paradigm enabled by Virtual Reality and related technologies. My technical expertise is Unity C# development across the VR - AR spectrum. I excel at building immersive experiences for all major target platforms, real-time networking, all-round 3D graphics, and high quality UX. In my spare time, I like to work with electronics, microcontrollers, and prototype haptic interfaces. I've spent my years in university researching and prototyping new Virtual Reality and Telepresence ideas. The creative nature of the courses I've followed allowed me to freedom to seek the most ambitious and unlikely of technological developments in the field. I can work to develop metaverse experiences that truly match your brand, which can be available in VR headsets (Oculus Quest 2, HTC Vive Cosmos, VIVE Pro, Windows Mixed Reality), and AR (iOS, Android, ARcore, ARkit, 8th Wall, WebXR, WebAR, Spark AR, Lens Studio).

Smart Contracts
Solidity
Blockchain Development
Cryptocurrency
Smart Contract
Unity
AR Filters & Lenses
ARCore
Augmented Reality
C#
Virtual Reality
Android
Spark AR Studio
iOS
ARKit
Unreal Engine
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