Solidity Experts pentru angajare
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ZAWN Tech is a trusted software company founded in 2014, delivering complete digital solutions for startups and enterprises worldwide. Our certified developers combine deep technical knowledge with real-world project experience to build fast, secure, and scalable systems. Core Expertise Blockchain: Metaverse, Web3,...ZAWN Tech is a trusted software company founded in 2014, delivering complete digital solutions for startups and enterprises worldwide. Our certified developers combine deep technical knowledge with real-world project experience to build fast, secure, and scalable systems. Core Expertise Blockchain: Metaverse, Web3, NFTs, NFT Games, Smart Contracts, Arbitrage & Sniper Bots, DEX / DApp Development (Ethereum, BSC, Polygon, Solana, WAX). Web & SaaS Development: Full-stack using React, Node.js, Laravel, Django, and Next.js. Integration with Odoo, Bubble.io, Zoho, and Webflow. eCommerce: Shopify, WooCommerce, Magento, and custom marketplace platforms with payment, shipping, and ERP integrations. Mobile Apps: Native and cross-platform (Flutter, React Native, Android, iOS). AI & Computer Vision: Chatbots, GPT integrations, TensorFlow, OpenCV, and OCR systems. Game Development: Unity 3D, Unreal, and WebGL with multiplayer, blockchain, and AR/VR support. Trading & Financial Automation: MT4/5, TradingView, Binance, Interactive Brokers, and algorithmic trading bots. Hardware & IoT: Arduino, Raspberry Pi, ESP32, MATLAB, embedded control, and automation projects. With 200+ recommendations and over a decade of experience, we turn complex ideas into reliable, production-ready solutions — delivered with clear communication and long-term support. mai puțin
Angajează pe AwaisChaudhry
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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 mai puțin
Angajează pe freelancerjohnr1
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I am a highly skilled Full-Stack & eCommerce Developer with expertise in building scalable, secure, and high-performance web applications. With a strong foundation in React, Vue.js, Node.js, NestJS, Laravel, and database management (MongoDB, PostgreSQL, MySQL), I specialize in developing modern web platforms, APIs,...I am a highly skilled Full-Stack & eCommerce Developer with expertise in building scalable, secure, and high-performance web applications. With a strong foundation in React, Vue.js, Node.js, NestJS, Laravel, and database management (MongoDB, PostgreSQL, MySQL), I specialize in developing modern web platforms, APIs, and complex backend systems. I have extensive experience in Shopify, WooCommerce, BigCommerce, Magento, and custom eCommerce solutions, helping businesses build, optimize, and scale their online stores. From theme customization and app development to third-party integrations, performance optimization, and automation, I ensure seamless and high-converting eCommerce experiences. Beyond web development, I specialize in web scraping, data automation, and AI-driven solutions using Python, Selenium, Puppeteer, and BeautifulSoup to extract, process, and analyze data efficiently. I integrate AI models for automation, predictive analytics, and intelligent data processing, enhancing decision-making and operational efficiency. I also have a strong background in blockchain development, working with Solidity, Ethereum, Binance Smart Chain (BSC), Polygon, and Rust for Solana to build smart contracts, NFT marketplaces, DeFi applications, crypto wallets, and blockchain-based payment gateways. I ensure secure and efficient Web3 integrations for decentralized applications. I am passionate about delivering cutting-edge solutions that merge eCommerce, AI automation, web development, and blockchain technology to drive innovation and business growth. Whether you need a scalable eCommerce store, AI-powered automation, data scraping solutions, or secure blockchain implementations, I am here to help. Let’s build the future of intelligent, data-driven, and scalable applications together! mai puțin
Angajează pe justinw45
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I design and build secure, scalable, and high-performance applications across web, mobile, and blockchain ecosystems. My goal is to turn ideas into reliable, future-ready software that delivers real business impact. Core Expertise Frontend: React, Vue.js, jQuery, TailwindCSS Backend: Laravel, Django, FastAPI,...I design and build secure, scalable, and high-performance applications across web, mobile, and blockchain ecosystems. My goal is to turn ideas into reliable, future-ready software that delivers real business impact. Core Expertise Frontend: React, Vue.js, jQuery, TailwindCSS Backend: Laravel, Django, FastAPI, Node.js Mobile: Flutter (Android & iOS) Blockchain: DApps, Smart Contracts, Web3 Integration Cloud & DevOps: AWS, Azure, Docker, Kubernetes Database: MySQL, PostgreSQL, MongoDB Services • Blockchain & DApp Development • Full-Stack Web & Mobile Applications • API Development & System Integration • UI/UX Implementation & Optimization • Performance Tuning & Ongoing Maintenance • Alongside development, my expert social media marketing team helps businesses strengthen their digital reach. We handle content creation, audience growth, and targeted campaigns designed to boost brand awareness and conversions. I focus on quality, communication, and precision — delivering solutions that are robust, maintainable, and built to scale. Let’s collaborate to build something exceptional. mai puțin
Angajează pe rofikulislam96
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Hello, Welcome to MAK Online Solutions Private Limited (MAKOS), one of the top IT agencies here on Freelancer. Based out of India, our team of 43 talented professionals offers the talent, knowledge, and customer service skills to take your project from potentially good to truly amazing! Our team has worked on...Hello, Welcome to MAK Online Solutions Private Limited (MAKOS), one of the top IT agencies here on Freelancer. Based out of India, our team of 43 talented professionals offers the talent, knowledge, and customer service skills to take your project from potentially good to truly amazing! Our team has worked on some amazing projects with clients from over 35 different countries, handling jobs big and small while maintaining the same consistency and quality throughout. We offer a variety of services involving: ? Mobile Development ? Web Development ? ERP ? Desktop Applications ? Websites ? Marketplace Platforms ? Cryptocurrency ? NFT Development We have a wide and varied tech stack, and we aren't afraid to take on any project you may have for us. Ultimately, it's our mission to provide excellent services that make your life easier, your business more efficient, and your vision a reality, all without gouging your bank account. Whether you need Blockchain Development or Health Care IT Solutions, we are the team for you! We're honest, dedicated, and always ready to show you the TRUE potential of your business' IT capabilities. So, if you're interested, reach out and let us know what we can do for you! We're always available, and happy to take on your challenges! Thanks, and have a great day! mai puțin
Angajează pe onkarkulkarni8
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Experienced Unity Game Developer | AR/VR Specialist | Unreal Engine | Roblox Games Greetings! With over 6+ years of hands-on experience in crafting immersive gaming experiences, I bring my expertise as a seasoned freelancer specializing in cutting-edge technology solutions and AWS DevOps. Unity Game Development...Experienced Unity Game Developer | AR/VR Specialist | Unreal Engine | Roblox Games Greetings! With over 6+ years of hands-on experience in crafting immersive gaming experiences, I bring my expertise as a seasoned freelancer specializing in cutting-edge technology solutions and AWS DevOps. Unity Game Development Mastery With 5 years of dedicated Unity game development, I excel in creating captivating and polished gaming experiences. My approach emphasizes delivering games that captivate audiences and distinguish themselves in the competitive gaming industry. VR/AR Pioneer Driven by a passion for Virtual Reality (VR) and Augmented Reality (AR), I am committed to exploring and crafting groundbreaking experiences. Leveraging my technical prowess, I create immersive environments and interactive content that redefine possibilities within the VR/AR space. AWS DevOps Expertise My experience in AWS DevOps ensures streamlined, scalable, and secure deployment of applications. I specialize in automating workflows, optimizing cloud resources, and maintaining robust infrastructure to support high-performance gaming environments and beyond. Why Collaborate With Me? Proven Track Record: I have demonstrated success in delivering high-quality projects across Unity, Unreal Engine, Roblox game development, and AWS DevOps. Innovation: I thrive on pushing technological boundaries and adopting the latest trends to deliver cutting-edge solutions. Reliability: With a wealth of experience, I bring a seasoned and reliable approach to every project. Let's embark on a journey to transform your ideas into reality! Whether it's captivating games, immersive VR/AR experiences, or robust cloud solutions, I stand ready to bring my expertise to your project. Get in Touch Feel free to connect to discuss your project, explore possibilities, or delve into the exciting world of technology. I am eager to contribute to your success! mai puțin
Angajează pe itswahabahmad
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As a talented AI Integration and Blockchain FullStack developer, I have rich experience in this field. And I have a lot of experience in FullStack development becasuse i started my developer career with FullStack. And also I developed several creative trading strategies and implement them. In spare time, i like...As a talented AI Integration and Blockchain FullStack developer, I have rich experience in this field. And I have a lot of experience in FullStack development becasuse i started my developer career with FullStack. And also I developed several creative trading strategies and implement them. In spare time, i like solving problem and playing piano. mai puțin
Angajează pe davig63
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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. mai puțin
Angajează pe diogos47
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arhamsoftltd arhamsoftltd
$65 USD/oră
Award-Winning ISO-Certified IT firm | Among Top 1%United States: ArhamSoft LLC is an ISO-certified software development company, proudly serving clients worldwide since 2007. With a strong presence across the USA, UK, Germany, UAE, and Saudi Arabia, we have delivered innovative, scalable, and business-driven solutions to organizations of all sizes. Over the years, we have had...: ArhamSoft LLC is an ISO-certified software development company, proudly serving clients worldwide since 2007. With a strong presence across the USA, UK, Germany, UAE, and Saudi Arabia, we have delivered innovative, scalable, and business-driven solutions to organizations of all sizes. Over the years, we have had the privilege of working with Fortune 500 companies, helping them achieve digital transformation with efficiency and excellence. As trusted technology partners, we hold official partnerships with Odoo, Salesforce, and Microsoft, enabling us to deliver cutting-edge solutions powered by the latest tools and platforms. With a team of dedicated professionals and a proven track record across industries, ArhamSoft continues to empower businesses with ERP systems, custom software, AI/ML, mobile applications, and enterprise-grade solutions that drive growth and long-term success. Our Expertise: - Artificial Intelligence (AI), Machine Learning (ML), and Natural Language Processing (NLP) - Blockchain & Web3 Solutions - Mobile App Development (iOS & Android) - Web Development & Custom SaaS Platforms - ERP & CRM Solutions (Odoo, Salesforce, Microsoft Dynamics) - Cloud Computing & Enterprise Software Integration & : - Presidential Award for Best Software Company - Clutch Top IT Service Provider - Pakistan Digital Award (PDA) 2021 - P@SHA ICT Award Winner (2021) - LCCI Best Software House Award & - ISO 9001:2015 Quality Management Systems - ISO 27001:2013 Information Security Management Salesforce Partner: https://appexchange.salesforce.com/appxConsultingListingDetail?listingId=a0NHu00000p0vBtMAI Odoo Partner: https://www.odoo.com/partners/arhamsoft-13313341 Microsoft Partner ? ISO Certified for Quality & Information Security Official Odoo, Microsoft & Salesforce Partner 18+ Years of Proven Industry Experience with 500+ global clients 100% Client Satisfaction Rate backed by long-term partnerships 230+ In-house Skilled Resources across AI, Web, Mobile, and Blockchain Full-Cycle IT Services: From strategy & development to deployment & support Proven Expertise in Complex, Enterprise-Scale Projects Strong QA & Security Practices ensuring compliance and reliability Customer-Centric Approach with transparent communication Agile & Scalable Delivery Models to fit startups, SMEs, and enterprises Award-Winning Company recognized for innovation & excellence : Looking to bring your next big idea to life or optimize your business with advanced technology? Lets make it happen together. Contact us today and discover how ArhamSoft can become your trusted technology partner. mai puțin
Angajează pe arhamsoftltd
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SiliconNexus is a technology solutions provider dedicated to helping businesses succeed in a rapidly changing world. We specialize in the development of sustainable, end-to-end solutions that are tailored to meet the specific needs of our clients. Our team of experienced professionals is committed to providing the...SiliconNexus is a technology solutions provider dedicated to helping businesses succeed in a rapidly changing world. We specialize in the development of sustainable, end-to-end solutions that are tailored to meet the specific needs of our clients. Our team of experienced professionals is committed to providing the highest quality solutions that are secure, scalable, and cost-effective. We stay at the forefront of technology and leverage the latest innovations to create solutions that are reliable and easy to use. ⭐ Services We Offer ✔ Web 2.0 ☑️ UX/UI research & design ☑️ Frontend development: React.js, Vue.js, Typescript ☑️ Backend development: Python (Django), Node.js, ☑️ Mobile app development: Flutter, React Native ✔ Web3.0 & Blockchain Solutions ☑️ Chains - Ethereum, EOS, Solana, Binance, Polygon ☑️ Smart contracts = ERC20, ERC721, ERC721A, ERC1155 ☑️ DeX's - Pancake Swap, Uniswap, Sushi Swap ☑️ DAO - From smart contract development to DAO governance ☑️ dApps - NFT minting buy, sell OR digital assess buy / sell OR Identity management etc. ☑️ Hyper-ledgers - Substrate [custom chain development] ✔ Embedded Systems Development ☑️ Hardware Design - PCB , High Speed, antennas & FPGA's ☑️ Drivers Development - I2C, CAN, USART, PCIe, AXI, DMA, Interrupt Controllers ☑️ Embedded Linux - Yocto , BitBake, ☑️ IOT application development - BLE, LTE 4G, 5G, LoraWAN, Zigbee, WiFi & Wifi6 ☑️ Cloud Integrations - GoogleCloud, Azure, AWS ☑️ Hardware Design & Verification Services - RISCV SoC design & verification ⭐ Our commitment ✅ 100% work quality ✅ Project demonstration & documentation ✅ Active support against any issue (even after deployment) ✅ 15 hours free-of-cost maintenance & support ✅ Free Discovery sessions & project consultation At SiliconNexus, we believe in building long-term partnerships with our clients. Our commitment to customer service and excellence ensures that we exceed our clients’ expectations. We are passionate about helping our clients stay ahead of the competition by providing them with the best technology solutions available. Silicon Nexus Business Development & Consultant Book a Free Consultation Call mai puțin
Angajează pe aqibnasim
