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Abdullah T.
$40/hr
$1K+ earned
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Software Engineer with a strong focus on delivering end-to-end digital solutions that solve real-world problems for clients, not just code. • As a Full-Stack Developer, I specialize in the MERN stack (MongoDB, Express.js, React, Node.js), building fast, responsive, and scalable web applications tailored to your business goals. • I bring hands-on experience in Blockchain development, from writing smart contracts to creating decentralized applications (dApps) that prioritize security, transparency, and efficiency. • I also work on integrating AI/ML into modern systems—whether it's predictive analytics, automation, or intelligent data handling—to help clients make smarter, faster decisions. • I invest time in fully understanding your vision, pain points, and goals, so the technical solutions I build are aligned with your business success. • Communication and reliability are key in my workflow—I make sure you're always in the loop, and your feedback is directly reflected in the development process. • My approach is collaborative: I don't just work for you, I work with you—to create systems that are as intuitive and efficient as they are powerful.
Muhammad Asad I.
$40/hr
100% Job Success
Available now
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As a Top Rated Plus freelancer on Upwork, I've successfully delivered large-scale data science, engineering and embedded systems projects with 100% client satisfaction I’m a Microsoft Certified Data Scientist and Electrical Engineer with 8+ years of R&D experience in Machine Learning, Data Analytics, and PCB/IoT Design, helping startups and engineering firms build smarter, data-driven products. What I Deliver AI & Data Science Solutions - Machine Learning & Deep Learning model development (NLP, Time Series, Computer Vision, GANs) - End-to-end ML pipelines: data preprocessing → model deployment → API integration - Predictive analytics & dashboards for finance, manufacturing, and IoT systems - Bots for trading (stocks, crypto) with real-time data analysis PCB & IoT System Design - High-efficiency PCB layouts (DC/DC converters, motor drivers, wearable devices, IoT boards) - Firmware development and embedded systems integration - Wireless communication (BLE, LoRa, Wi-Fi) and sensor-based design Technical Writing & Research - Research papers, whitepapers, and technical documentation - AI, data science, and engineering articles written with clarity and authority Why Clients Hire Me - Microsoft Certified and backed by an Electrical Engineering degree - Cross-domain expertise, combining AI, data analytics, and embedded systems - Proven track record in delivering optimized, production-ready ML and engineering solutions - 100% commitment to quality, communication, and on-time delivery, or your money back If you’re building a data-driven product, predictive system, or smart IoT solution, I can help you take it from idea to implementation, efficiently, accurately, and intelligently. Let’s discuss how I can help you bring your next project to life.
Michael G.
$35/hr
100% Job Success
$100K+ earned
Available now
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🔥 Every crypto and web3 projects I’ve worked with came to me with the same problem: great tech, weak traction, poor community and poor marketing execution. MemeCore needed a launch strategy that would cut through the noise. Dynex Coin needed visibility that matched its technology. Pizpepe, Purpe, and Doge on Base needed community momentum and exchange exposure fast. In each case, I built and executed a crypto marketing strategy tailored to where the project was and where it needed to go. With 8+ years in crypto marketing, Web3 growth, and AI marketing, I specialise in high-ROI campaigns, token trending, presale acceleration, and community scaling. Whether you’re raising your first round or pushing toward mass adoption, I don’t just advise I execute the strategy that gets your project seen, trusted, and funded ✅ WHY CLIENTS HIRE ME: ✔️PROVEN TRACK RECORD: Helped projects reach $250k – $50M+ market caps through presale raises, token exposure, and exchange listings. ✔️TOP RATED PLUS ON UPWORK: Consistent 5⭐ reviews and repeat clients on complex Web3 projects. ✔️SPEED & PRECISION: Lagos never sleeps — and neither do I. I deliver fast without compromising quality. ⚡ CORE EXPERTISE IN CRYPTO MARKETING 💥ICO / IDO / Launchpad Marketing – from concept to execution 💥Token Listings – Fast-track CoinMarketCap & CoinGecko listings + exchange exposure 💥Community Growth & Management – Telegram, Twitter, Discord, Reddit 💥Crypto Ads – Poocoin, Etherscan, banner ads & targeted paid campaigns 💥Influencer Marketing – strategy, outreach, and management 💥Content & Narrative Creation – whitepapers, press releases, blogs, and viral social media content 💥SEO & SEM for Web3 – ranking keywords that drive organic traffic 💥Email Marketing – segmented campaigns to boost conversions 🔗 EXTRA SERVICES I OFFER ✅Meme token creation (Solidity) ✅AMA hosting & moderation ✅Exchange & launchpad advisory (PinkSale, DxSale, etc.) ✅Token trending on DEXTools, GeckoTerminal ✅Brand & digital awareness campaigns ✅Crypto community shills & engagement 🛠️ TOOLS I USE MailChimp | GetResponse | Google Analytics | Google Ads Suite | Poocoin Ads | Etherscan Ads 🌍 LET’S BUILD YOUR CRYPTO SUCCESS STORY I’ve worked with dozens of Web3 projects worldwide, helping them grow from zero to millions in market cap. If you’re ready to boost exposure, raise funds, and build lasting communities, let’s get started today. Why Work With Me❓ Top Rated Plus Status: My status as a Top Rated Plus freelancer on Upwork is a testament to my consistent delivery of outstanding results and high client satisfaction, even on complex projects. Speed and Efficiency: Known for rapid execution without compromising quality, I ensure your project moves swiftly from concept to market. I live in Lagos, if you've been here you know this city never sleeps, and neither do I. That means I can work on your time, I get things done on time, and I work fast without sacrificing quality (yes, there're plenty of people here who will charge half my hourly rate and then take twice as long to get the work done). Many of the projects I get here are to clean up their mess, so let's get it done right the first time together! And I hope we work together soon. Expertise: Blockchains: Bitcoin, cryptocurrency, Ethereum, Dapps, meme coins, token listing, token trending, dextools trending, coinmarketcap, and coingecko fast-track listing, Social media marketing, Email marketing, Linkedin marketing.
GMA Marketing Agency
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GMA Marketing Agency
Humayou A.
$35/hr
100% Job Success
$1K+ earned
Offers consultations
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Solidity developer and full-stack Web3 engineer with 6+ years building production dApps on Ethereum, Polygon, BNB Chain, Arbitrum, and Hedera. 50+ projects delivered. 100% JSS. Top Rated on Upwork. 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐈'𝐯𝐞 𝐬𝐡𝐢𝐩𝐩𝐞𝐝: 𝐒𝐩𝐡𝐞𝐫𝐚 𝐍𝐅𝐓 𝐌𝐚𝐫𝐤𝐞𝐭𝐩𝐥𝐚𝐜𝐞 : full-stack NFT marketplace on Hedera; Next.js frontend, Node.js backend with Redis caching and PostgreSQL, smart contract development, testing, integration and mainnet deployment 𝐃𝐞𝐜𝐞𝐧𝐭𝐫𝐚𝐥𝐢𝐳𝐞𝐝 𝐯𝐨𝐭𝐢𝐧𝐠 𝐬𝐲𝐬𝐭𝐞𝐦 𝐰𝐢𝐭𝐡 𝐛𝐢𝐨𝐦𝐞𝐭𝐫𝐢𝐜 𝐟𝐢𝐧𝐠𝐞𝐫𝐩𝐫𝐢𝐧𝐭 𝐚𝐮𝐭𝐡𝐞𝐧𝐭𝐢𝐜𝐚𝐭𝐢𝐨𝐧 (𝐖𝐞𝐛𝐀𝐮𝐭𝐡𝐧) : voters verify identity off-chain, votes recorded immutably on Ethereum via Solidity smart contract 𝐃𝐞𝐜𝐞𝐧𝐭𝐫𝐚𝐥𝐢𝐳𝐞𝐝 𝐠𝐢𝐯𝐞𝐚𝐰𝐚𝐲 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐰𝐢𝐭𝐡 𝐂𝐡𝐚𝐢𝐧𝐥𝐢𝐧𝐤 𝐕𝐑𝐅 : provably fair, on-chain randomness for tamper-proof winner selection, no manual intervention 𝐃𝐞𝐜𝐞𝐧𝐭𝐫𝐚𝐥𝐢𝐳𝐞𝐝 𝐜𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐞 𝐯𝐞𝐫𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐮𝐬𝐢𝐧𝐠 𝐙𝐞𝐫𝐨-𝐊𝐧𝐨𝐰𝐥𝐞𝐝𝐠𝐞 𝐏𝐫𝐨𝐨𝐟𝐬 : validates authenticity without exposing private data, ZK proof verified by smart contract on-chain 𝐍𝐅𝐓 𝐦𝐢𝐧𝐭𝐢𝐧𝐠 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 with IPFS metadata, whitelist presale, ERC-721/1155 contracts, and OpenSea integration , deployed to Ethereum mainnet 𝐃𝐞𝐅𝐢 𝐬𝐭𝐚𝐤𝐢𝐧𝐠 𝐚𝐧𝐝 𝐲𝐢𝐞𝐥𝐝 𝐟𝐚𝐫𝐦𝐢𝐧𝐠 𝐜𝐨𝐧𝐭𝐫𝐚𝐜𝐭𝐬 with gas-optimized Solidity and OpenZeppelin security standards 𝐓𝐨𝐤𝐞𝐧 𝐥𝐚𝐮𝐧𝐜𝐡𝐞𝐬 with ERC-20 presale contracts, vesting schedules, airdrop mechanics , Etherscan verified 𝐒𝐮𝐥𝐢𝐨 𝐀𝐫𝐭 : rescued and completed after multiple failed outsourcing attempts, delivered on deadline, 5-star client review Every contract is written test-first using Hardhat, deployed to testnet before mainnet, and verified on-chain before handoff. I send daily progress updates and document every architecture decision so you always know where the project stands. No surprises, no scope creep. 𝐒𝐦𝐚𝐫𝐭 𝐜𝐨𝐧𝐭𝐫𝐚𝐜𝐭 𝐬𝐭𝐚𝐜𝐤 : Solidity · ERC-20, ERC-721, ERC-1155 · Chainlink VRF · Zero-Knowledge Proofs · WebAuthn · Hardhat · Remix IDE · OpenZeppelin · IPFS · Hedera HTS 𝐂𝐡𝐚𝐢𝐧𝐬 : Ethereum · Polygon · BNB Chain · Arbitrum · Avalanche · Hedera Hashgraph 𝐖𝐞𝐛𝟑 𝐟𝐫𝐨𝐧𝐭𝐞𝐧𝐝: Ethers.js · Web3.js · MetaMask · WalletConnect · RainbowKit · Wagmi 𝐅𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 : React.js · Next.js · Node.js · Express.js · Redis · PostgreSQL · MongoDB · REST APIs · TypeScript 𝐈𝐟 𝐲𝐨𝐮'𝐫𝐞 𝐥𝐚𝐮𝐧𝐜𝐡𝐢𝐧𝐠 𝐚 𝐭𝐨𝐤𝐞𝐧, 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐚 𝐃𝐞𝐅𝐢 𝐩𝐫𝐨𝐭𝐨𝐜𝐨𝐥, 𝐨𝐫 𝐧𝐞𝐞𝐝 𝐚 𝐬𝐦𝐚𝐫𝐭 𝐜𝐨𝐧𝐭𝐫𝐚𝐜𝐭 + 𝐟𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 𝐚𝐬 𝐨𝐧𝐞 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐞 𝐩𝐚𝐜𝐤𝐚𝐠𝐞 , 𝐬𝐞𝐧𝐝 𝐦𝐞 𝐭𝐡𝐞 𝐛𝐫𝐢𝐞𝐟 𝐚𝐧𝐝 𝐈'𝐥𝐥 𝐭𝐞𝐥𝐥 𝐲𝐨𝐮 𝐞𝐱𝐚𝐜𝐭𝐥𝐲 𝐡𝐨𝐰 𝐈'𝐝 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡 𝐢𝐭 𝐰𝐢𝐭𝐡𝐢𝐧 𝟒 𝐡𝐨𝐮𝐫𝐬.
$32/hr
74% Job Success
$4K+ earned
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Hi, I'm Japhet, an experienced senior full-stack developer from the Philippines specializing in React.js, Next.js, Node.js, Python, Go, AWS, GCP, AI model integration (including Chat GPT), and blockchain (smart contracts and DApps), known for creating seamless web and mobile applications with robust backends and responsive frontends to drive business growth. 💻 Technical Expertise ⭐ Frontend: React.js, JavaScript, TypeScript, HTML5, CSS/SASS, Bootstrap ⭐ UI/UX: Figma, Adobe XD ⭐ Backend: Node.js, Next.js, Express.js, PHP, Laravel, Python, Go ⭐ APIs: RESTful, GraphQL ⭐ Database: MySQL, PostgreSQL, MongoDB, Firebase ⭐ Blockchain: Smart Contracts, DApps, Ethereum, Solana, TON, Solidity, Web3.js ⭐ DevOps: AWS, Digital Ocean, Firebase, Vercel, Docker, Kubernetes ⭐ Specialized Integrations: Payment Gateways (Stripe, Razorpay, Paytm, Apple Pay), Communication APIs (Twilio, SendGrid, MessageBird) ⭐ Project Tools: GitHub, GitLab, Bitbucket, VS Code, Jira, Trello, ClickUp 💼 𝖶𝗁𝗒 𝖯𝖺𝗋𝗍𝗇𝖾𝗋 𝖶𝗂𝗍𝗁 𝖬𝖾 𝖺𝗌 𝖺 𝖥𝗎𝗅𝗅 𝖲𝗍𝖺𝖼𝗄 𝖣𝖾𝗏𝖾𝗅𝗈𝗉𝖾𝗋? 🔗𝖢𝗅𝖾𝖺𝗋 𝖢𝗈𝗆𝗆𝗎𝗇𝗂𝖼𝖺𝗍𝗂𝗈𝗇 𝗍𝗁𝗋𝗈𝗎𝗀𝗁𝗈𝗎𝗍 𝗍𝗁𝖾 𝗉𝗋𝗈𝗃𝖾𝖼𝗍 🔗𝖢𝗈𝗆𝗆𝗂𝗍𝗆𝖾𝗇𝗍 𝗍𝗈 𝖼𝗅𝖾𝖺𝗇, 𝗌𝖼𝖺𝗅𝖺𝖻𝗅𝖾 𝖼𝗈𝖽𝖾 𝖺𝗇𝖽 𝗁𝗂𝗀𝗁 𝗌𝗍𝖺𝗇𝖽𝖺𝗋𝖽𝗌 🔗𝖥𝗅𝖾𝗑𝗂𝖻𝗂𝗅𝗂𝗍𝗒 𝗍𝗈 𝗆𝖾𝖾𝗍 𝖽𝖾𝖺𝖽𝗅𝗂𝗇𝖾𝗌 𝖺𝗇𝖽 𝖺𝖽𝖺𝗉𝗍 𝗍𝗈 𝗉𝗋𝗈𝗃𝖾𝖼𝗍 𝗇𝖾𝖾𝖽𝗌 💪 Key strengths to ensure success: ✅ Mastery in NestJs, NextJs, and ReactJs development, alongside proficiency in other modern technologies. ✅ Outstanding communication skills and a strong sense of ownership for the work delivered. ✅ Comprehensive understanding of business dynamics, from conceptualizing POCs and MVPs to testing hypotheses, to crafting well-tested, maintainable applications that delight customers. ✅ Adaptable and responsive, effectively addressing challenges and adjusting to project requirements as needed. ✅ Committed to continuous learning and staying up-to-date with industry trends, ensuring cutting-edge solutions are employed in every project. 🚀 𝖧𝗈𝗐 𝖨 𝖬𝖺𝗄𝖾 𝖺 𝖣𝗂𝖿𝖿𝖾𝗋𝖾𝗇𝖼𝖾 🌐𝖲𝗒𝗌𝗍𝖾𝗆𝖺𝗍𝗂𝖼 𝖠𝗉𝗉𝗋𝗈𝖺𝖼𝗁 𝖿𝗋𝗈𝗆 𝗉𝗅𝖺𝗇𝗇𝗂𝗇𝗀 𝗍𝗈 𝖽𝖾𝗉𝗅𝗈𝗒𝗆𝖾𝗇𝗍 🌐𝖲𝖼𝖺𝗅𝖺𝖻𝗅𝖾 𝖲𝗈𝗅𝗎𝗍𝗂𝗈𝗇𝗌 𝖿𝗈𝗋 𝖿𝗎𝗍𝗎𝗋𝖾 𝗀𝗋𝗈𝗐𝗍𝗁 🌐𝖢𝗈𝗅𝗅𝖺𝖻𝗈𝗋𝖺𝗍𝗂𝗏𝖾 𝗆𝗂𝗇𝖽𝗌𝖾𝗍, 𝗈𝖿𝖿𝖾𝗋𝗂𝗇𝗀 𝗉𝗋𝗈𝖺𝖼𝗍𝗂𝗏𝖾 𝖿𝖾𝖾𝖽𝖻𝖺𝖼𝗄 🌐𝖱𝖾𝗌𝗎𝗅𝗍𝗌-𝖮𝗋𝗂𝖾𝗇𝗍𝖾𝖽, 𝖾𝗇𝗌𝗎𝗋𝗂𝗇𝗀 𝗏𝖺𝗅𝗎𝖾 𝗐𝗂𝗍𝗁 𝖾𝗏𝖾𝗋𝗒 𝖿𝖾𝖺𝗍𝗎𝗋𝖾 📩🚀 Ready to elevate your project to new heights? Don't hesitate – send a direct message or invite to the project for an exceptional experience! Let's make your vision a reality together! Keywords: #FullStackDevelopment #FullStackExpert #FullStackSolutions #ReactDeveloper #NodeJSDeveloper #PHPDeveloper #PythonDevelopment #GoDevelopment #AIIntegration #ChatGPTIntegration #BlockchainDevelopment #SmartContracts #DApps #SolidityExpert #Ethereum #Web3 #NestJsDevelopment #NextJsExpert #ReactJsApps #NodeJSSolutions #FullStackCoding #MERNStack #MEANStack #DevOpsEngineer #AWS #GCP #Docker #Kubernetes #CI/CD #Automation #RESTfulAPI #GraphQLDevelopment #CustomAPI #APIIntegration #WebDevelopment #MobileAppDevelopment #ResponsiveDesign #UI/UXDesign #Figma #AdobeXD #APIAutomation #CloudServices #ServerlessArchitectures #Microservices #Lambdas #CloudFormation #ScalableWebApps #ModernWebSolutions #BackendIntegration #SiteAvailability #PerformanceOptimization #SecurityPractices #PaymentGatewayIntegration #Stripe #Razorpay #ApplePay #TwilioAPI #SendGridAPI #CommunicationAPIs #VersionControl #GitHub #GitLab #Bitbucket #CollaborationTools #ProjectManagement #Jira #Trello #VSCode
$20/hr
$0 earned
Available now
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With over 5 years of experience in blockchain development, I specialize in building secure and scalable backend systems for decentralized applications (dApps) and smart contracts. Tech Stack: - Blockchain: Solidity | FunC | Move - Backend: Node.js | NestJS | Rust | Go | MongoDB | PostgreSQL - Architecture: RESTful APIs | GraphQL | Microservices | WebSocket | gRPC - DevOps & Cloud: AWS | GCP | Azure | Kubernetes I'm passionate about pushing the boundaries of blockchain technology and helping businesses harness its full potential.
Stas S.
$44/hr
100% Job Success
$40K+ earned
Available now
Offers consultations
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✨ PREMIUM PRO | PRO VERIFIED SEASONED AND EXPERT DEVELOPER ✨ Hey there! I'm Stas Sorokin, your go-to tech maestro, ready to breathe life into your digital dreams with a sprinkle of coding magic and a dash of innovation. With over ten years of crafting digital solutions for top-tier organizations worldwide, I've mastered the art of turning complex ideas into sleek, efficient realities. Whether it's front-end flair, back-end brawn, native app novelty, or mobile development mastery, I'm your guy. Why Stas? Here's Why: - 🌟 Proven Excellence: CTO and Founder of a Software Developer firm & a Pro Verified developer with a 5-star rating across 50+ reviews. My code isn't just clean; it's pristine. - 🚀 Tech Wizardry: From AI applications that dazzle to web wonders and API alchemy, I've done it all. My toolbox is a tech enthusiast's dream, ready to tackle your unique challenges. - 💡 Client-Centric Vision: Your vision is my mission. I dive deep into your world, ensuring the final product isn't just good; it's tailor-made for your success. - 🤖 AI & Beyond: Leveraging the latest in AI, I transform businesses, streamline operations, and create experiences that resonate and revolutionize. What I Bring to the Table: - 🎨 Front-End & Back-End Development: Crafting visually stunning and functionally robust platforms that engage and convert. - 📱 Native & Mobile Development: Seamless, responsive designs that ensure your project shines on any screen, anywhere. - 🧠 AI Integration & Development: From sophisticated AI applications to smart API integrations, I harness the power of AI to elevate your project. - 🛠 Full-Stack Expertise: With a comprehensive skill set, I oversee your project from conception to launch, ensuring a cohesive and compelling digital experience. Your Journey together: 1. Discovery & Strategy: We kick off with a deep dive into your vision, mapping out a strategy that aligns with your goals. 2. Design & Development: With a clear plan in place, I bring your project to life, ensuring every pixel and line of code adds value. 3. Launch & Beyond: Post-launch, I stand by you, ready to iterate and evolve your project to keep you ahead of the curve. Let's Make Magic Happen: Ready to transform your ideas into digital excellence? I'm just a message away. Reach out, and let's embark on a journey that takes your project from concept to reality, exceeding expectations every step of the way. 🚀 Tech Stack Extravaganza: Dive into My Digital Toolbox! 🚀 Frontend Brilliance: - 🌐 JavaScript Ecosystem: Vue.js, Node.js, ExpressJS, Angular, Nuxt.js - 🎨 React Mastery: React.js (with Redux & Saga), React Native for seamless mobile experiences - 🖌 Styling Superpowers: HTML/CSS with a flair for Tailwind, Livewire; embracing PWA for next-gen web apps - 📐 Design Systems: Material UI, Ant Design, Styled Components for visually stunning interfaces Backend & Database Dynamo: - 🛠 PHP Prowess: Laravel (PHP 7 & 8) for robust backend solutions - 💾 Database Diversity: MySQL, PostgreSQL, MongoDB, DynamoDB for scalable data storage - 🌍 API Artistry: Expert in both development (Node.js, Python - Django, Go - Golang) and integrations (Stripe, PayPal, Twilio, and more) Cloud Giants & DevOps: - ☁️ AWS Arsenal: Route 53, API Gateway, Lambda, DynamoDB, S3, SageMaker, and more for scalable, efficient cloud solutions - 🌌 Azure Suite: DNS, API Management, Functions, Cosmos DB, Machine Learning, and more for powerful cloud-based applications AI & Machine Learning Marvels: - 🤖 AI Integration & Development: GPT-4, Embeddings, RAG, LangChain, Cloud 2.1, Mixtral, GPT-4 Vision, Gemini Pro + Vision, Gemini Ultra, AutoGen for cutting-edge AI solutions - 🧠 Smart Solutions: Building AI SaaS, integrating ChatGPT, fine-tuning LLM models, crafting prompt engineering solutions, and developing smart chatbots and voice assistants Mobile Development Magic: - 📱 Cross-Platform Excellence: React Native, iOS, Android development with tools like Expo and Fastlane for top-notch mobile apps Web Frontend Wonders: - 🌟 Next-Gen Frameworks: Next.js, Nuxt.js, Angular, Vue, Electron for dynamic, responsive web applications Backend Backbone: - 🔧 Node.js & More: MongoDB, Redis, PostgreSQL, SQL, MySQL, GraphQL, Cassandra, RabbitMQ for powerful, efficient backend services Freebies Because You're Awesome: - 🎁 FREE Quotation & Project Consulting: Because your vision deserves the best start Let's Create Digital Magic Together! - 🚀 Your project isn't just another task on my list; it's the next opportunity to push the boundaries of what's possible. With this tech stack, your vision is primed to soar beyond the ordinary. Ready to embark on this journey? Let's chat and transform your ideas into digital marvels together! Stas Sorokin - Where Technology Meets Imagination. 📩 Invite me to your project today and let's create something extraordinary together!
Stas S. has worked .
Federico S.
$55/hr
$500K+ earned
Available now
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Blockchain and Web3 developer with 10+ years building smart contracts, DeFi platforms, AI-powered MVPs, and full-stack web applications. Expert-Vetted by Upwork (Top 100). 100% Job Success. 500K+ earned across 32 contracts. I specialize in: - Smart contract development (Solidity, EVM, Ethereum, Polygon, Solana) - DeFi protocols, NFT platforms, and Web3 integrations - AI agents and LangChain / OpenAI-powered applications - Full-stack development: React, Next.js, Node.js, NestJS, TypeScript - Startup MVPs, product discovery, and technical consulting As CEO and Co-founder of SpaceDev, I lead a team of 20+ engineers that has delivered 160+ projects for clients across the US, Europe, and Latin America. Our work has been featured by Forbes and Clutch (30+ five-star reviews). Notable project: NDAX - Canada's first officially government-backed crypto exchange. Tech stack: - Blockchain: Solidity, Hardhat, Ethers.js, Web3.js, Ethereum, Polygon, Solana - AI: LangChain, OpenAI, GPT-4, custom AI agents - Frontend: React, Next.js, TypeScript, Redux - Backend: Node.js, NestJS, Express, GraphQL, REST - Databases: PostgreSQL, MongoDB, MariaDB, SQL - Cloud: AWS, GCP, Firebase, Heroku Looking for a blockchain, Web3, or AI development expert? Let's talk. Book a consultation call now.
SpaceDev
Associated with
SpaceDev
$1M+
earned
Sergey G.
$39/hr
100% Job Success
$3M+ earned
Available now
Offers consultations
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Helping manufacturing and industrial teams build scalable CPQ, quoting, pricing automation, quote generation, proposal generation, and quote-to-cash systems that actually work in real sales operations. Experience working with CPQ platforms including Salesforce CPQ, Revenue Cloud, Oracle CPQ, Apttus CPQ, custom product configurators, and pricing automation solutions. Verticals: industrial equipment, HVAC & mechanical contractors, contract manufacturing, building materials, engineered products, custom assemblies, field services. Where I've helped: Spreadsheets → structured quoting & pricing automation Moved pricing logic, product configuration rules, pricing configuration, quote generation processes, and approval workflows out of Excel into scalable CPQ and quote management systems sales reps can actually use without breaking pricing. Homegrown tools → maintainable quote-to-cash systems Preserved existing business logic while removing single-developer dependency and improving maintainability, quoting workflows, sales operations visibility, CRM automation, and RevOps processes. Document builders (PandaDoc, Qwilr) → automated proposal generation Connected configuration, pricing engines, CRM data, Salesforce CRM, and ERP systems so quotes, proposals, SOWs, and sales documents generate automatically from rules instead of manual assembly. Heavy CPQ (Salesforce CPQ, Oracle CPQ) → right-sized implementation Simplified existing CPQ setups, pricing workflows, quote generation processes, product configuration models, and product configurators — or replaced overengineered systems with tools that better match how the sales team actually sells. Quote-to-cash workflow setup end-to-end Quotes → proposals → contracts → e-sign → sales orders → fulfillment Built full document automation flows with branded proposal generation, contract generation, approval routing, e- sign integration (DocuSign, PandaDoc, native e-sign), and downstream Sales Order / Purchase Order automation. Approved quotes flow directly into fulfillment without manual re-entry, duplicate data entry, pricing mismatches, or version control issues between sales and operations. Experience with: CPQ, Configure Price Quote (CPQ), Salesforce CPQ, Revenue Cloud, pricing automation, pricing configuration, proposal automation, sales quoting, quote generation, proposal generation, RevOps workflows, Quote to Cash (QTC), sales document automation, CRM automation, Salesforce CRM, Salesforce Sales Cloud, product configuration, approval workflows, contract management, ERP/CRM integration, API integration, subscription pricing, dynamic pricing, sales operations, and quote-to-cash processes. Not sure where to start? Send a quick overview of your current quoting process, pricing workflow, quote generation process, CPQ implementation, or proposal generation setup — I’ll take a look and share what I’d improve, no commitment required.
TWT Capital Inc.
Associated with
TWT Capital Inc.
$200+
earned
Roman L.
$35/hr
100% Job Success
$10K+ earned
Available now
Offers consultations
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✅ Claude Certified Developer ✅ AI developer with 15+ years of experience ✅ Delivered products that generated $1.6M+ in income for clients Still scrolling through a long list of AI developers? Don’t waste your time - just message me 😉 💡 How I work Every project starts with the business goal and ends with a maintainable, production-ready system: • define the AI use case and success metrics • choose the right approach: LLM, RAG, machine learning, classifiers, automation, or hybrid systems • build a clean pipeline: ingestion → validation → storage → retrieval • implement guardrails: safety, formatting, validation, fallback logic • ship with monitoring, iteration, and cost control 🔧 Tech Stack • AI / LLMs: OpenAI API, Claude Code, Lovable, Cursor, LangGraph, LangChain, embeddings, vector search, RAG, AI agents • Machine Learning / Data Work: model pipelines, classification, enrichment, data processing, evaluation workflows • Backend: Node.js, NestJS, Express.js, .NET, Python • Frontend: React, Next.js, Angular • Data: PostgreSQL, MySQL, MongoDB • Automation: n8n, Playwright • Cloud & DevOps: AWS, Azure, Docker, GitHub Actions • Product Integrations: Stripe, Supabase, Firebase, Twilio, QuickBooks, Google Maps, Puppeteer, and more I build backend systems, data processing, automation, and AI workflows. As a web developer, I build the product layer around the AI so the whole system works smoothly for actual users. And with a data scientist perspective, I pay close attention to data quality, model behavior, and decision logic, because weak inputs create weak AI. Recent successful AI-powered projects: 1️⃣ Lead Data Management Tool Large-scale extraction and enrichment pipeline with automated cleaning and classification • Uploading 50× faster • 184M+ records processed • Performance improved by 38% 2️⃣ AI-Powered Investment Mobile App AI-driven insights and personalization for faster decision-making • 70% less time spent managing investments • 3× more successful outcomes 3️⃣ Real Estate AI Assistant NLP-powered recommendations for faster matching and better engagement • Shortlisting 69% faster • Engagement increased by 184% 🧲 Industries I’ve delivered AI for: SaaS, FinTech, Healthcare, Construction, Logistics, Telecommunications, Oil & Gas, Real Estate, MarTech, and other operations-heavy businesses. 👉 If you need an AI developer, AI consulting services, web developer, or someone with solid machine learning and data scientist thinking who can ship stable, production-safe AI features, let’s build it.
CodeGeeks Solutions
Associated with
CodeGeeks Solutions
$80K+
earned