Hire the best Blockchain Developers in Bellevue, WA
Check out Blockchain Developers in Bellevue, WA with the skills you need for your next job.
- $35 hourly
- 5.0/5
- (2 jobs)
With more than six years of experience in software testing, I have a diverse skillset that includes functional, UI, interface, E2E, acceptance, smoke, performance, security, black, grey, and white box testing, as well as regression and maintenance testing. Additionally, I have experience testing products across a range of platforms including web, Android, iOS, Windows, and macOS. I am comfortable with various developer tools and can work with HTML, CSS, XML, JSON. I am a certified ISTQB foundation holder, demonstrating my knowledge of testing fundamentals. I have experience in test automation and am adept at working with Selenium and test automation frameworks.
Blockchain
Bug ReportsHTMLSeleniumSQLSwaggerTest AutomationSoftware TestingMobile AppAPIUser Acceptance TestingWeb TestingPostmanUsability TestingTest Results & Analysis - $75 hourly
- 5.0/5
- (4 jobs)
With 7 years of programming experience, I specialize in full-stack blockchain development, including front-end applications and back-end architecture. My expertise extends to smart contract development, testing, auditing, and deployment for FinTech and other industries leveraging decentralization, tokenization, and smart contracts. Services: - Websites Development - Mobile App Development - Smart Contract Design and Development - Optimization and Modification of Smart Contracts - Smart Contract Auditing and Testing - Expertise in developing smart contracts using Solidity. - Development of Ethereum-based ERC-20 and ERC-721 Token Contracts - Smart Contracts for Decentralized Applications, Digital Wallets, DEXs, and more. - Proficient in creating RPC interfaces with client libraries like Web3. - Skilled in performing static analysis of smart contracts for gas consumption optimization using Remix IDE. - Ensuring smart contract security with OpenZeppelin and other libraries. - Developing Ethereum DApps using the Truffle framework. - Wallet integration expertise, including MetaMask. - Experienced in deploying smart contracts on test networks (Ropsten/Rinkeby) and the Ethereum mainnet. Skills: - Blockchain and Smart Contract:Bitcoin, Ethereum, Cryptocurrency, Binance Smart Chain, Polygon, Solana, Avalanche, Algorand, Hyperledger Fabric, Tron, EOS, Substrate, NFTs, Solidity (including ERC-20/DeFi and ERC-721/NFT standards), Remix IDE, Web3.js, Truffle Suite, and Embark. - Programming Languages: JavaScript, Java, Rust, Vyper, Golang, Python, and PHP - Front-end Development: HTML, CSS, Bootstrap, Tailwind CSS, SCSS, React, jQuery, Next.js, JavaScript (ES6), TypeScript, Angular, Vue.js, Nuxt.js, and Web Design. - Back-end Development: Node.js, Express, Django, Flask, Ruby on Rails, Laravel, CodeIgniter, Symfony, CakePHP, Yii, and Firebase. - Mobile: Android, iOS, React Native, Flutter, Ionic, etc. - Databases: MySQL, MongoDB, Redis, PostgreSQL, and SQL Server.
Blockchain
SolanaPHPBitcoinBlockchain Architectureweb3.jsPythonBlockchain DevelopmentCryptocurrencyJavaScriptSmart ContractSolidityReactEthereumNode.js - $50 hourly
- 0.0/5
- (0 jobs)
👋 Hi, I'm Tal, I am an experienced front-end developer working independently. 🏆I have 𝟓+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 working experience with ✅ ReactJs ✅ NextJs ✅ VueJs/ViteJs ✅ Astro.js ✅ Bootstrap ✅ Tailwindcss ✅ Figma/XD to React Js. ✅ HTML/CSS ✅ SciChart based websites. ● Clients feedback about my work: 👍 "Tal has proven to be an exceptional freelancer on Upwork. When I assigned him the task, I explained what needed to be done clearly. Abul demonstrated his expertise and skills by following the documentation and completing the task without problems. I am extremely satisfied with the outcome and the quality of his work. Based on this experience, I would not hesitate to hire Abul again for any future tasks that may arise." 👍 "He is a passionate worker. He worked through the task very diligently and with persistence. He was cooperative and made improvements to the task many times on my request." 👍"Great work and he delivered the project in time. Highly recommended!" 👍 "Another great experience with Abul. Great freelancer with a nice attitude, good skills, and a willingness to work fast. I will keep hiring Abul for my tasks." 👍"The sliders you crafted for our website are simply amazing. Your talent and attention to detail have elevated our user experience. Thank you for your outstanding work!" 👍""Md. Tal demonstrated exceptional proficiency in his work. His consistent punctuality in submitting designs was noteworthy, making him an excellent fit for U.S.-based companies. The time zone difference plays to our advantage, as Md. Abul works diligently through our night, allowing us to receive his updates early each morning. This schedule facilitates prompt feedback and efficient collaboration. As a front-end developer, his attention to detail is remarkable. Md. Abul is committed to refining his work, ensuring that every aspect of the project aligns precisely with our requirements and feedback within the project's scope."
Blockchain
BootstrapCSS 3HTMLTailwind CSSWeb Designweb3.jsAmazon Web ServicesJavaScriptGitNode.jsNext.jsReact - $35 hourly
- 4.8/5
- (6 jobs)
9series is an enterprise company solely focused on building High-end technology Solutions and Services having global exposure in creating their own reputation ensuring tailormade solutions to their end clients. With limited resources and unlimited talent, we aspired to make a mark in the domain of IT services. It is this melange of timeliness and cost-effectiveness that our clients love and adore. By offering nothing but excellence with a wide range of IT services, we wish to make clients’ selection process more straightforward, shorter and sweeter. After all, it is this simplicity of decision-making that leads to something that we call ‘Competitive Advantage’. • Guarantee of Excellence, Quick turnaround, and Cost-effectiveness. • We love good ideas, significant challenges, and ambitious clients. • Specializes in giving your vision and idea a concrete shape. • Creative process ensures you get the pixel-perfect design, peerless usability, and clean, scalable code. @ Technology Experience : MOBILE APP DEVELOPMENT - iOS app development - Android app development - Hybrid app development(Ionic) WEB DESIGN & DEVELOPMENT - Custom web Application Development - Content Management System Website Development - E-commerce Website Development - Blog Development (WordPress) - Portal Development OTHER EXPERTISE ASP.Net JAVA Python MARKET VERTICALS: - Health Care - Real Estate - Sports - Travel - Fashion - Internet Community - E-commerce - Media and Entertainment - Finance - Automotive - Construction - Transportation and Logistics - Enterprise Resource Planner - Audit Management We are looking forward to serving you better.
Blockchain
QualtricsMachine LearningBack-End DevelopmentFront-End DevelopmentNFT Design CustomizationASP.NET MVCLaravelAndroid App DevelopmentMobile App DevelopmentReact NativePythonFlutterPHP Want to browse more freelancers?
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