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Các Freelancer được bảo trợ
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I design and build production-grade digital systems — from advanced blockchain protocols and DeFi platforms to AI-powered trading tools and scalable web/mobile applications. My expertise sits at the intersection of Blockchain Engineering, AI Automation, and Full-Stack Development, allowing me to deliver complete,...I design and build production-grade digital systems — from advanced blockchain protocols and DeFi platforms to AI-powered trading tools and scalable web/mobile applications. My expertise sits at the intersection of Blockchain Engineering, AI Automation, and Full-Stack Development, allowing me to deliver complete, real-world products — not just isolated pieces of tech. 🚀 Core Expertise ① Blockchain & DeFi Engineering I build secure, scalable smart contract systems and the platforms around them. Smart Contracts (Solidity / EVM) ERC-20, BEP-20, ERC-721, ERC-1155 token standards Token launches with presales, treasury logic, fee systems Reflection, burn/mint mechanics, advanced tokenomics Vesting, Lockups & Distribution Team, seed, and marketing vesting vaults Airdrop + claim systems Token distribution dashboards Security & Governance Multisig wallets, timelocks, role-based permissions Anti-bot protections, max wallet/tx, cooldowns Whitelists, blacklists, and upgradeable proxy patterns Staking, Rewards & Liquidity Staking/farming vaults and reward engines Presale + claim portals AMM & DEX integrations (Uniswap / PancakeSwap style) Chainlink oracles, subgraphs, and on-chain analytics Chains & Tools Ethereum, BNB Chain, Polygon, Arbitrum, Base Hardhat, Foundry, OpenZeppelin, Ethers.js, Web3.js, Wagmi, Viem, The Graph, IPFS Security Focus Full test suites, fuzz & invariant testing, gas optimization, and audit preparation/fixes. ② AI, Trading & Automation Systems I build intelligent, risk-aware trading and automation tools that operate across crypto and traditional markets. Strategy design & backtesting (Python, EasyLanguage) MetaTrader (MQL4/5) indicators, Expert Advisors, risk modules Exchange & broker API integrations Risk controls: drawdown limits, position sizing, daily loss caps Data pipelines, performance reporting, and monitoring Light ML models for signal filtering, anomaly detection, and optimization Hybrid systems combining on-chain data + CEX/DEX feeds + AI logic ③ Web, Mobile & Backend Development I don’t just build contracts — I build the entire product ecosystem around them. Web Frontend React, Next.js, Vue, Tailwind DApp interfaces, token dashboards, admin panels, investor analytics Mobile Apps React Native & Flutter Wallet views, staking interfaces, notifications, companion crypto apps Backend & APIs Node.js (Express), Python (Django/FastAPI) REST & GraphQL APIs PostgreSQL/MySQL, Redis, job queues, webhooks Infrastructure & DevOps AWS, Firebase, Docker, CI/CD pipelines Monitoring, logging, and security hardening 🎯 What You Actually Get ✔ Audit-ready tokens and DeFi smart contracts ✔ Staking, vesting, and lockup systems with clean user dashboards ✔ Complete crypto platforms: Smart Contracts + Backend + Frontend + Mobile (optional) ✔ AI-powered trading bots with professional risk management ✔ Clean architecture, documented code, and smooth handover to your team ít hơn
Thuê freelancerjohnr1
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Hello, I'm Billy Bryan, a passionate and results-driven Full Stack Web Developer with over a 6 years of experience in building cutting-edge websites and web applications. I specialize in delivering efficient, scalable, and user-friendly digital solutions tailored to your business needs. With a keen eye for detail and...Hello, I'm Billy Bryan, a passionate and results-driven Full Stack Web Developer with over a 6 years of experience in building cutting-edge websites and web applications. I specialize in delivering efficient, scalable, and user-friendly digital solutions tailored to your business needs. With a keen eye for detail and a strong focus on problem-solving, I ensure every project I work on exceeds expectations and drives measurable results. Backend Development ✔️ Python: Flask, Django, RESTful APIs, data processing. ✔️ C#: ASP.NET Core, application development, Azure integrations. ✔️ PHP: Laravel, WordPress, custom CMS solutions. ✔️ SQL & Databases: PostgreSQL, MySQL, Couchbase, TypeORM. Frontend Development ✔️ React.js: Next.js, Remix.js, Astro.js ✔️ JavaScript: Angular, Vue, Vuex, TypeScript, jQuery. ✔️ CSS Frameworks: Bootstrap, Tailwind CSS, SCSS, LESS. ✔️ Responsive Design: HTML5, CSS3, Figma, pixel-perfect, cross-browser compatibility. Tools & Platforms: ✔️ Version Control: Git, GitHub, GitLab, Bitbucket ✔️ Cloud: AWS, Azure, Google Cloud, Couldflare ✔️ DevOps: Docker, CI/CD pipelines, Jenkins. ✔️ Collaboration: Trello, Slack, Jira. What I Offer ✔️ Custom Web Applications: Fully responsive and optimized for performance. ✔️ API Development & Integration: Building and connecting APIs for seamless data exchange. ✔️ Database Design & Optimization: Efficient data models and query performance tuning. ✔️ Migration & Upgrades: Smooth transitions with zero downtime. ✔️ Full-Stack Solutions: From UI/UX design to backend logic and deployment. I'm passionate about turning your ideas into functional, scalable, and visually appealing digital solutions. Whether you need a one-off project or long-term collaboration, I’m here to help. Let's bring your project to life! Let’s discuss your project needs and start building something amazing together. Best regards, Billy Bryan ít hơn
Thuê billybryan98
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Unlock peak efficiency with Esmael, your top-tier virtual assistant. I combine lightning-fast data entry with meticulous organization and expert CRM management using HubSpot, Salesforce, Zoho CRM, Asana, Monday.com, Notion, Trello, Plane, and UpBase to streamline your workflows and elevate your business. Whether it’s...Unlock peak efficiency with Esmael, your top-tier virtual assistant. I combine lightning-fast data entry with meticulous organization and expert CRM management using HubSpot, Salesforce, Zoho CRM, Asana, Monday.com, Notion, Trello, Plane, and UpBase to streamline your workflows and elevate your business. Whether it’s managing communication on Slack, scheduling meetings, or prioritizing tasks, I'm here to be your dedicated partner in success. Let me handle your administrative tasks so you can focus on what truly matters. My Skillset: ✴️ Virtual Assistant Specialist: Proficient in email management, scheduling, and task prioritization. ✅ Data Entry Wizard: I ensure data accuracy through efficient cleaning, categorization, and migration. ✴️ CRM Mastery: Unlock the power of HubSpot, Notion, and UpBase for streamlined client management. ✅ Communication Connoisseur: I excel in written and verbal communication, ensuring clear and timely interactions. ✴️ Slack Savvy: I navigate Slack effortlessly, keeping your team connected and informed. ✅ Time Management Titan: I prioritize tasks efficiently to meet deadlines without compromising quality. ✴️ Problem-Solving Prodigy: I tackle challenges head-on, finding creative solutions to ensure smooth operations. Keywords: virtual assistant, data entry, CRM management, HubSpot, Notion, UpBase, Slack, administrative support, project management, scheduling, communication, organization, efficiency, time management Certifications: ✴️ HubSpot Marketing Software Certified ✴️ Virtual Assistant Specialist ✴️ Google IT Support Professional Certificate ✴️ LinkedIn Marketing Strategy Certification I offer translation and transcription services between English and the following Ethiopian languages: ✴️ Amharic ✴️ Oromo ✴️ Afar ✴️ Tigrinya ✴️ Arabic I am committed to continuous learning and professional development. I look forward to discussing how I can contribute to your success. Contact me today for a free consultation. ít hơn
Thuê esmael228
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I am a highly skilled and experienced Senior Full-Stack Developer with expertise in a wide range of technologies including React, Python, Node.js, Ruby on Rails (ROR), and Artificial Intelligence (AI). With a strong background in software development and a passion for creating innovative solutions, I have successfully...I am a highly skilled and experienced Senior Full-Stack Developer with expertise in a wide range of technologies including React, Python, Node.js, Ruby on Rails (ROR), and Artificial Intelligence (AI). With a strong background in software development and a passion for creating innovative solutions, I have successfully delivered numerous projects from concept to completion. Some of my recent projects include developing a chatbot for a healthcare company, implementing real-time data visualization for a financial services firm, and building a scalable e-commerce platform for a retail startup. I take pride in my ability to understand the unique needs of my clients and deliver high-quality solutions that drive business growth. If you're looking for a seasoned developer who can bring your vision to life, let's connect and discuss your project requirements. ít hơn
Thuê yulingh
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I am a full-stack mobile and web developer with over 10 years of experience delivering high-quality, scalable applications. My expertise spans Flutter, React Native, Swift, Kotlin, and the MERN stack, enabling me to build intuitive, high-performance apps for both iOS and Android, as well as responsive, secure web...I am a full-stack mobile and web developer with over 10 years of experience delivering high-quality, scalable applications. My expertise spans Flutter, React Native, Swift, Kotlin, and the MERN stack, enabling me to build intuitive, high-performance apps for both iOS and Android, as well as responsive, secure web platforms from scratch. Mobile App Development I specialize in cross-platform solutions using Flutter and React Native, and also develop native apps with Swift and Kotlin. I have built a wide range of applications, including social media, dating, e-learning, quiz, GPS-based delivery, real-time chat, and restaurant apps with a focus on performance, UI, and clean architecture. Web Development (MERN Stack) I create fast, responsive, and feature-rich web apps using MongoDB, Express.js, React, and Node.js. My projects include e-commerce platforms, admin dashboards, CRMs, and content management systems with solid backend logic and smooth user experience. E-commerce Solutions I build custom, scalable e-commerce websites using WordPress, Magento, and custom stacks. From payment gateway integration to user-centric shopping flows, I ensure optimal performance and usability. Blockchain and Crypto Integration I have hands-on experience integrating cryptocurrency solutions and secure wallet systems for seamless digital transactions, with a focus on Bitcoin and blockchain app use cases. UI and UX Design Using tools like Figma, Sketch, and Adobe XD, I create clean, modern, and responsive designs tailored for intuitive user interaction and accessibility across all screen sizes. Technologies I Use * Mobile: Flutter, React Native, Swift, Kotlin, Admob * Web: MERN Stack, PHP, Laravel, WordPress, Magento * Frontend: HTML5, CSS3, JavaScript, Ajax, jQuery * Blockchain: Crypto wallet integration, Bitcoin support * Design: Figma, Adobe XD, Sketch Why Work With Me * Reliable and Timely: I meet deadlines without compromising on quality * Custom-Fit Solutions: Tailored approaches to meet your business goals * Full-Stack Expertise: End-to-end development from UI to backend * Clear Communication: You will always be in the loop throughout development * Up-to-Date Technologist: I stay on top of trends to bring you the latest innovations Let’s bring your idea to life with beautiful, secure, and high-performing digital experiences. Farhin ít hơn
Thuê rbtech1984
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Hi! I’m Noor Shukri, a versatile professional with experience in **graphic design, data entry, and database management**. I specialize in: - Designing modern, visually polished portfolios using Canva for models, creatives, and businesses. - Managing social media pages and organizing visual content. - Performing...Hi! I’m Noor Shukri, a versatile professional with experience in **graphic design, data entry, and database management**. I specialize in: - Designing modern, visually polished portfolios using Canva for models, creatives, and businesses. - Managing social media pages and organizing visual content. - Performing accurate and efficient data entry and database management tasks. - Highlighting photos, videos, and content in a clean, minimalist style. I’m committed to delivering high-quality work on time. All projects are fully editable and easy to customize, whether it’s a design project or a database task. I’m here to help you showcase your work professionally or manage your data efficiently, leaving a lasting impression on your audience and streamlining your processes. ít hơn
Thuê nooralneami
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AI & Full-Stack Engineer with 8 years of experience. I started in backend development and moved into AI 3 years ago, focusing on AI automation, AI agents, and model development. I also build Web3/blockchain integrations and modern frontends. Tech: JavaScript, Python, Rust, C#, Solidity, React Native, Vue JS,...AI & Full-Stack Engineer with 8 years of experience. I started in backend development and moved into AI 3 years ago, focusing on AI automation, AI agents, and model development. I also build Web3/blockchain integrations and modern frontends. Tech: JavaScript, Python, Rust, C#, Solidity, React Native, Vue JS, .NET, PHP Automation: n8n, Zapier, Notion, GHL, CRM integrations AI: AI model development/integration, AI Agent, AI ML & Deep Learning AI coding tools: Cursor, Windsurf, and Claude (I prefer Claude Opus/Sonnet for faster delivery) I believe chance favors the prepared mind. ít hơn
Thuê nataliyak5
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Senior Full-Stack Developer with 13+ years building production systems across AI, Web3, mobile, and backend infrastructure. Design and ship software end to end — backend architecture, AI integrations, mobile applications, and on-chain systems. Clean architecture, secure implementation, and delivery grounded in...Senior Full-Stack Developer with 13+ years building production systems across AI, Web3, mobile, and backend infrastructure. Design and ship software end to end — backend architecture, AI integrations, mobile applications, and on-chain systems. Clean architecture, secure implementation, and delivery grounded in real-world constraints. Comfortable owning the full stack so projects move without coordination overhead. 🎯 SYSTEMS THINKING - Scalable, modular architecture - Edge cases addressed early - Long-term maintainability over quick patches AI & AUTOMATION - LLM-based systems, RAG pipelines, AI agents - OpenAI API and custom model integrations - Workflow automation and data pipelines BACKEND & WEB - FastAPI, RESTful APIs, authentication systems - React and Next.js applications - Real-time and event-driven architecture MOBILE APPS - API-first mobile architecture - Secure authentication and real-time features - Production-ready builds and deployment WEB3 - Smart contracts in Solidity and Rust - EVM and Solana ecosystems - DeFi protocols, token mechanics, on-chain integrations If you need someone who can take ownership, reduce moving parts, and ship cleanly without constant supervision, we’ll work well together. ít hơn
Thuê diogos47
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Empiric means “Knowledge gained from experience”, and that’s exactly how we build software. We make software that really helps businesses run smoother and easier. We keep things simple no unnecessary complications. For over 8+ years we have been helping people by listening carefully to them. We spend time...Empiric means “Knowledge gained from experience”, and that’s exactly how we build software. We make software that really helps businesses run smoother and easier. We keep things simple no unnecessary complications. For over 8+ years we have been helping people by listening carefully to them. We spend time understanding the problem that Empiric Infotech is trying to solve for our clients before we start building anything for them. We build: * Websites * Mobile apps * AI tools. Only when Empiric Infotech thinks they actually make things better * Automations that save people time and remove repeat work * Connections between different tools that are not talking to each other properly We usually work with tools like React, Next.js, Node.js, Python, FastAPI, PostgreSQL, MongoDB, Flutter, FlutterFlow and we also work on trendy tools like Cursor, Replit, Bolt.new, Loveable,Claude and Antigravity. Empiric Infotech picks whatever is actually best for the project that Empiric Infotech is working on. We believe in honest talking realistic timelines that Empiric Infotech actually sticks to and making our clients feel comfortable and confident the whole way. Got an idea or a problem that you want Empiric Infotech to solve? Just send Empiric Infotech a message. We will look at it carefully. Get back to you within 24 hours with a simple plan and clear pricing. Empiric Infotech LLP Real experience, solutions. Feel free to reach out, to Empiric Infotech we are happy to chat with you. ít hơn
Thuê dreamerherry
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I’m a CRM & Lifestyle Marketing Specialist helping brands increase customer retention, loyalty and rewards, and conversions through data-driven CRM strategy. I specialise in building and managing email, SMS, and automation systems that guide customers through the full lifecycle of the business, from initial...I’m a CRM & Lifestyle Marketing Specialist helping brands increase customer retention, loyalty and rewards, and conversions through data-driven CRM strategy. I specialise in building and managing email, SMS, and automation systems that guide customers through the full lifecycle of the business, from initial engagement and acquisition to retention and loyalty. My experience includes CRM strategy, segmentation, automation flows, HTML email design, promotional and transactional campaigns, and performance optimisation. I work closely with brands to create personalised and conversion focused messaging that actually drives results. I’ve worked across multiple industries, including e-commerce, fashion, fintech/igaming, and subscription-based businesses, I also have experience with Fundist, HubSpot and Klaviyo and I’m especially strong in setting up scalable CRM systems that will grow your brand. ít hơn
Thuê aaliyaht8
