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Vladyslav K.
$45/hr
100% Job Success
$200K+ earned
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Is your AI agent a production system or a fragile demo? Most AI agent projects collapse the moment they hit real traffic. 🏆 20+ years architecting production systems at principal engineer level 📊 $100K+ earned on Upwork across 32 architecture projects 🎯 100% Job Success Score, Top Rated Plus on Upwork ⚡ Built an MCP server connecting AI agents to live financial operations on Solana 💼 CEO at Osambit, a 20-person AI agent engineering team ✅ Enterprise Blockchain Architect certified, former Sr Principal Engineer at Nordstrom ⭐⭐⭐⭐⭐ "We've had the opportunity to collaborate with the Osambit team, and it's been a great experience. They're highly professional, responsive, and truly understand the final goal. Their technical expertise and ability to deliver on time have been key to the success." (Alwyn V., IXO World) As an AI Agent Architect with 20+ years of production engineering experience, I build AI agent systems using LangGraph, LangChain, and MCP that run in production, not prototypes that die in demos. Every AI agent project I take on starts with a decision graph - what the AI agent handles autonomously, what escalates to a human, and where it fails safely. That architecture-first approach is why my AI agent systems survive real traffic while cheaper builds collapse on edge cases. 🔶 IXO World (AI agent architecture): full-time Q4 2024 engagement | delivered on time | team collaboration verified by client testimonial above 🔶 Meteora + proprietary DLMM protocol (AI agent + DeFi automation): $81K engagement | MCP server linking AI agents to live trading operations | real-time autonomous execution with human-in-the-loop safeguards 🔶 Roover.AI (AI agent system architecture): intelligent B2B2C roof estimation platform | multi-modal RAG pipeline design | production deployment 🔶 Nordstrom (Sr Principal Engineer, 5 years): architected 9+ enterprise systems | supported 10 offshore engineering teams | supply chain, payment, logistics domains WHAT I DO ✅ AI Agent Architecture: decision graph design, multi-step workflow orchestration, human-in-the-loop control for every AI agent system ✅ LangGraph & LangChain Systems: production AI agent pipelines with state management and tool connectivity ✅ MCP Server Development: Model Context Protocol servers connecting AI agents to real business systems ✅ RAG Pipelines: retrieval-augmented generation grounding LLM answers in your knowledge base ✅ Multi-Agent Orchestration: CrewAI, LlamaIndex, and custom AI agent orchestration for complex agentic AI workflows ✅ AI Agent Security Hardening: prompt injection defense, data leakage prevention, auditability ✅ LLMOps & Production Deployment: tracing, observability, evaluation frameworks, regression testing for AI agent systems ✅ OpenAI & Claude API Integration: enterprise-grade AI agent integration with cost, latency, and failure-mode management WHO I WORK WITH 🎯 B2B and B2C companies building AI agent products, not one-off assistant setups 🎯 Founders and CTOs who need AI agent systems running in production with real users 🎯 Teams with multi-week engagements (4+ weeks minimum), not 5-minute tasks 🎯 Companies that understand AI agent architecture is a design problem, not a prompt problem 🎯 Clients who value senior engineering judgment over the cheapest hourly rate MY PROCESS 1️⃣ Architecture Review: 24-hour turnaround on a decision graph, failure-mode map, and scope estimate for your AI agent project 2️⃣ Design: AI agent flow specification, tool boundaries, escalation rules, evaluation plan 3️⃣ Build: production AI agent system with observability, security, and regression tests from day one 4️⃣ Deploy & Iterate: staged rollout, LLMOps monitoring, iterative refinement of the AI agent based on real usage Send me a message or invite me to your AI agent project. Free 24-hour AI agent architecture review available - no commitment required.
Osambit
Associated with
Osambit
$200K+
earned
Anjum S.
$20/hr
100% Job Success
$60K+ earned
Available now
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As a forward-thinking agency, we specialize in delivering cutting-edge Web 3 solutions to businesses, driving innovation across various industries. Our expertise and services are tailored to meet the dynamic needs of our clients, ensuring their projects stand out in the digital landscape. 🔥 Our Services 🎮 Meta-Fi Integration: Revolutionize your gaming experience with our advanced NFT trading solutions, enhancing interoperability and engagement. 💱 De-Fi in the Metaverse: Unleash the potential of digital assets with our bespoke cryptocurrency wallets and exchanges. 🕹️ GameFi – Next-Gen Web3 Gaming: Enter a new era of gaming with our integrated ecosystem that combines blockchain, DeFi, NFTs, and in-game currencies. 💻 Bespoke Web3 Development: Customized Web3 solutions for businesses of all sizes, leveraging blockchain, NFTs, and cryptography. 🔗 Custom Blockchain Solutions: Tailor-made blockchain solutions for startups and enterprises, focusing on automation and streamlined operations. 📜 Smart Contract Development: Specialized in Solidity and Rust, we deliver versatile smart contracts for applications like De-Fi, DEX, DApp, and NFTs. 🎨 NFT Tokenization Services: Transforming collectibles into valuable digital assets with our innovative NFT development. 🛒 NFT Marketplace Creation: Comprehensive NFT marketplace development, blending smart contract protocols and robust programming. 🔄 Decentralized Exchange Development: Secure, scalable, and custom-built DEX solutions for businesses aiming for peak performance. 🔒 Digital & Crypto Wallet Development: Streamlined and secure wallet development services tailored for global digital asset management. 🌍 Strategic Web3 & Blockchain Consulting: Propel your growth with our strategic consultancy in blockchain and Web3 technologies. ✅ My proficiency spans NodeJS and .NET for robust back-end development, while Django powers seamless integration and powerful functionalities. On the front-end, I excel in ReactJS and Angular, creating captivating user interfaces. ✅ As a Lead Full-Stack Developer, I've successfully managed teams, ensuring timely project deliveries and streamlined workflows. My collaborative approach ensures clear communication and a precise understanding of client needs. ✅ I've contributed to notable projects, demonstrating my commitment to innovation and excellence in delivering tailored solutions using NodeJS, .NET, Django, ReactJS, and Angular. ✅ My expertise extends to databases such as PostgreSQL, MySQL, and MongoDB, ensuring optimized data management. Additionally, I am proficient in mobile application development using React Native. ✅ 𝙎𝙤𝙡𝙪𝙩𝙞𝙤𝙣 𝘼𝙧𝙘𝙝𝙞𝙩𝙚𝙘𝙩 | 𝘿𝙚𝙫𝙊𝙥𝙨 | 𝘼𝙒𝙎 | 𝘼𝙯𝙪𝙧𝙚 | 𝙏𝙚𝙧𝙧𝙖𝙛𝙤𝙧𝙢 | 𝙆𝙪𝙗𝙚𝙧𝙣𝙚𝙩𝙚𝙨 | 𝙂𝘾𝙋: Empower your organization with scalable, resilient, and secure cloud-native solutions crafted by an experienced Solution Architect and DevOps specialist. With expertise spanning AWS, Azure, Google Cloud Platform (GCP), Terraform, Kubernetes, and more, I provide end-to-end services to optimize your cloud infrastructure and drive digital transformation. ✨ Our Track Record Working with esteemed clients like Vulcan Forged, DadaVault, Private Jet Pyjama Party, and Elysium. Celebrated as top 100 metaverse innovators and holding CMMI level 2, V.02 certification. Recognized by Good Firms, Selected Firms, and IT Firms as a leader in blockchain development. Members of the Blockchain Game Alliance and the Metaverse Standards Forum, we remain at the forefront of industry advancements. 🚀 Ready to Innovate? Embark on a journey to transform your blockchain dreams into reality with us. Connect on Upwork and let’s craft the future of technology together! 🌟
BloxBytes
Associated with
BloxBytes
$4K+
earned
Sunny K.
$16/hr
99% Job Success
$400K+ earned
Available now
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👑𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐧𝐭₿⃨ 🥇10+ years of 𝑺𝑶𝑳𝑰𝑫 experience 🕒 24*7 ✨ With over 10+ years of high-demand experience in 𝗯𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁, I specialize in delivering robust 𝗳𝗿𝗼𝗻𝘁-𝗲𝗻𝗱 and 𝗯𝗮𝗰𝗸-𝗲𝗻𝗱 solutions for 𝗯𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀. My expertise covers comprehensive smart contract development, including 𝗦𝗼𝗹𝗶𝗱𝗶𝘁𝘆 and 𝗥𝘂𝘀𝘁 for platforms like 𝗘𝘁𝗵𝗲𝗿𝗲𝘂𝗺 and 𝗦𝗼𝗹𝗮𝗻𝗮. I excel in architecting, implementing, and auditing 𝗱𝗲𝗰𝗲𝗻𝘁𝗿𝗮𝗹𝗶𝘇𝗲𝗱 solutions tailored for industries like 𝗙𝗶𝗻𝘁𝗲𝗰𝗵, where 𝘁𝗼𝗸𝗲𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻, 𝘀𝗲𝗰𝘂𝗿𝗶𝘁𝘆, 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆 are essential. By leveraging blockchain’s power, I create innovative applications that support 𝗱𝗲𝗰𝗲𝗻𝘁𝗿𝗮𝗹𝗶𝘇𝗲𝗱 𝗳𝗶𝗻𝗮𝗻𝗰𝗲 (𝗗𝗲𝗙𝗶), 𝗻𝗼𝗻-𝗳𝘂𝗻𝗴𝗶𝗯𝗹𝗲 𝘁𝗼𝗸𝗲𝗻𝘀 (𝗡𝗙𝗧𝘀), 𝐒𝐦𝐚𝐫𝐭 𝐂𝐨𝐧𝐭𝐫𝐚𝐜𝐭 𝐀𝐮𝐝𝐢𝐭𝐨𝐫 and 𝗮𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝘀𝗺𝗮𝗿𝘁 𝗰𝗼𝗻𝘁𝗿𝗮𝗰𝘁 functionality, ensuring secure and efficient solutions. My approach includes precise requirement 𝗮𝗻𝗮𝗹𝘆𝘀𝗶𝘀, 𝘀𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗽𝗹𝗮𝗻𝗻𝗶𝗻𝗴, 𝗲𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝘁 𝗰𝗼𝗱𝗶𝗻𝗴, 𝘁𝗵𝗼𝗿𝗼𝘂𝗴𝗵 𝗱𝗲𝗯𝘂𝗴𝗴𝗶𝗻𝗴, 𝗮𝗻𝗱 𝘀𝗲𝗮𝗺𝗹𝗲𝘀𝘀 𝗱𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁. With minimal supervision, I ensure each stage aligns with project goals, producing solutions that are both innovative and reliable. 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 : - ============================================================================= 🔥𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻: 𝗕𝗶𝘁-𝗰𝗼𝗶𝗻, 𝗘𝘁𝗵𝗲𝗿𝗲𝘂𝗺, 𝗦𝗼𝗹𝗮𝗻𝗮 ,𝗘𝗢𝗦, 𝗛𝘆𝗽𝗲𝗿𝗹𝗲𝗱𝗴𝗲𝗿, 𝗦𝘂𝗯𝘀𝘁𝗿𝗮𝘁𝗲, 𝗡𝗙𝗧, 𝗦𝗼𝗹𝗶𝗱𝗶𝘁𝘆: 𝗲𝗿𝗰𝟮𝟬/𝗗𝗲𝗙𝗶, 𝗲𝗿𝗰𝟳𝟮𝟭/𝗡𝗙𝗧. 🔥𝗙𝗿𝗼𝗻𝘁-𝗲𝗻𝗱: 𝗥𝗲𝗮𝗰𝘁.𝗷𝘀, 𝗡𝗲𝘅𝘁, 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 (𝗘𝗦𝟲), 𝗧𝘆𝗽𝗲𝗦𝗰𝗿𝗶𝗽𝘁, 𝗔𝗻𝗴𝘂𝗹𝗮𝗿, 𝗩𝘂𝗲.𝗷𝘀 🔥𝗕𝗮𝗰𝗸-𝗲𝗻𝗱: 𝗡𝗼𝗱𝗲.𝗷𝘀, 𝗣𝗛𝗣 𝗟𝗮𝗿𝗮𝘃𝗲𝗹, 𝗙𝗶𝗿𝗲𝗯𝗮𝘀𝗲. 🔥𝗗𝗕: 𝗠𝘆𝗦𝗤𝗟, 𝗠𝗼𝗻𝗴𝗼 𝗗𝗕 𝗣𝘂𝗯𝗹𝗶𝗰 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: - ============================================================================= ✔ 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗶𝗻𝗴 𝘀𝗺𝗮𝗿𝘁 𝗰𝗼𝗻𝘁𝗿𝗮𝗰𝘁𝘀 𝘂𝘀𝗶𝗻𝗴 𝗮 𝗦𝗼𝗹𝗶𝗱𝗶𝘁𝘆 𝗽𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗹𝗮𝗻𝗴𝘂𝗮𝗴𝗲. ✔ 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗶𝗻𝗴 𝗥𝗣𝗖 𝘂𝘀𝗶𝗻𝗴 𝗰𝗹𝗶𝗲𝗻𝘁 𝗹𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀 𝘀𝘂𝗰𝗵 𝗮𝘀 𝗪𝗲𝗯𝟯 ✔ 𝗦𝘁𝗮𝘁𝗶𝗰 𝗮𝗻𝗮𝗹𝘆𝘀𝗶𝘀 𝗼𝗳 𝘀𝗺𝗮𝗿𝘁 𝗰𝗼𝗻𝘁𝗿𝗮𝗰𝘁𝘀 𝗳𝗼𝗿 𝗴𝗮𝘀 𝗰𝗼𝗻𝘀𝘂𝗺𝗽𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝘂𝘀𝗶𝗻𝗴 𝗥𝗲𝗺𝗶𝘅 𝗜𝗗𝗘. ✔ 𝗦𝗲𝗰𝘂𝗿𝗶𝗻𝗴 𝘀𝗺𝗮𝗿𝘁 𝗰𝗼𝗻𝘁𝗿𝗮𝗰𝘁𝘀 𝘂𝘀𝗶𝗻𝗴 𝗹𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀 𝗹𝗶𝗸𝗲 𝗢𝗽𝗲𝗻𝗭𝗲𝗽𝗽𝗲𝗹𝗶𝗻. ✔ 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗶𝗻𝗴 𝗘𝘁𝗵𝗲𝗿𝗲𝘂𝗺 𝗱𝗮𝗽𝗽𝘀 𝘂𝘀𝗶𝗻𝗴 𝘁𝗵𝗲 𝗧𝗿𝘂𝗳𝗳𝗹𝗲 𝗳𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸. ✔ 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 𝘄𝗶𝘁𝗵 𝗰𝗿𝘆𝗽𝘁𝗼 𝘄𝗮𝗹𝗹𝗲𝘁𝘀 𝘀𝘂𝗰𝗵 𝗮𝘀 𝗠𝗲𝘁𝗮𝗺𝗮𝘀𝗸. ✔ 𝗦𝗸𝗶𝗹𝗹𝗲𝗱 𝗶𝗻 𝗹𝗲𝘃𝗲𝗿𝗮𝗴𝗶𝗻𝗴 𝗦𝗣𝗟 𝗹𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀 𝗳𝗼𝗿 𝗿𝗮𝗽𝗶𝗱 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 ✔ 𝗗𝗲𝗽𝗹𝗼𝘆𝗶𝗻𝗴 𝘀𝗺𝗮𝗿𝘁 𝗰𝗼𝗻𝘁𝗿𝗮𝗰𝘁𝘀 𝗼𝗻 𝘁𝗲𝘀𝘁 𝗻𝗲𝘁𝘄𝗼𝗿𝗸𝘀 𝘀𝘂𝗰𝗵 𝗮𝘀 𝗿𝗼𝗽𝘀𝘁𝗲𝗻/𝗿𝗶𝗻𝗸𝗲𝗯𝘆 𝗮𝘀 𝘄𝗲𝗹𝗹 𝗮𝘀 𝗘𝘁𝗵𝗲𝗿𝗲𝘂𝗺 𝗺𝗮𝗶𝗻𝗻𝗲𝘁. I'm always ready to provide efficient, impactful assistance and to take on new challenges swiftly. If you need any of the services mentioned, feel free to reach out—I'm prepared to dive in and deliver exceptional results! I pride myself on identifying the most cost-effective, high-quality solutions for every opportunity I encounter. Thank you for considering my profile! #BlockchainConsultant #SmartContracts #DecentralizedApps #Solana #Ethereum #Bitcoin #DeFi #NFT #Web3 #CryptoDevelopment #BlockchainExpert #FullStackBlockchain #SolidityDev #FintechSolutions #Tokenization #SmartContractAuditing #FrontEndBlockchain #BackendArchitecture #ReactJS #NodeJS #Laravel #MongoDB #MySQL #MetamaskIntegration #OpenZeppelin #TruffleFramework #CryptoWalletIntegration #BlockchainInnovation #TechnologyConsultant #TechLeadership #CostEffectiveSolutions #ReadyToCode
Sunny K. has worked .
ELYRIA SOFTWARE PRIVATE LIMITED
Associated with
ELYRIA SOFTWARE PRIVATE LIMITED
$900K+
earned
Muhammad I.
$25/hr
100% Job Success
$60K+ earned
Available now
Offers consultations
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Hello, I am Muhammad Idrees an AI Engineer, AI Automation Expert, and AI Consultant helping startups and growing companies implement AI agents, AI workflow automation, Voice AI Agents and scalable intelligent systems that reduce operational workload and increase measurable ROI. I design automation that doesn’t just “connect apps” it replaces repetitive work, strengthens revenue pipelines, and creates infrastructure that scales with your business. 𝐖𝐡𝐚𝐭 𝐈 𝐇𝐞𝐥𝐩 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬𝐞𝐬 𝐀𝐜𝐡𝐢𝐞𝐯𝐞 ✔ Eliminate manual processes with business process automation ✔ Increase sales efficiency through CRM automation & lead generation automation ✔ Deploy intelligent assistants using AI chatbot development & conversational AI ✔ Build scalable operations with AI integration & SaaS automation ✔ Implement production-ready systems using LLM development & OpenAI API integration From n8n automation workflows to advanced Zapier integration and Make com automation, I build intelligent automation ecosystems tailored to real business impact. 🚀 𝐂𝐥𝐢𝐞𝐧𝐭 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐑𝐞𝐬𝐮𝐥𝐭𝐬 🔹 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐋𝐞𝐚𝐝 & 𝐂𝐑𝐌 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐒𝐲𝐬𝐭𝐞𝐦 Designed an end-to-end automation engine integrating AI agents with CRM and email systems. Results: 60% reduction in manual lead processing 3x faster response time Increased sales conversion rates Fully automated lead routing & follow-up system 🔹 𝐀𝐈 𝐂𝐡𝐚𝐭𝐛𝐨𝐭 & 𝐌𝐮𝐥𝐭𝐢-𝐀𝐠𝐞𝐧𝐭 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 𝐒𝐲𝐬𝐭𝐞𝐦 Developed a conversational AI assistant with document intelligence and CRM integration. Results: Automated 70% of support queries Reduced support workload significantly Improved response consistency Scalable AI-powered customer operations 🔹 𝐀𝐈-𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐞𝐝 𝐒𝐚𝐚𝐒 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 Architected a scalable SaaS MVP with built-in AI automation and subscription billing. Results: Accelerated MVP launch timeline Automated backend workflows Implemented AI-driven decision support Built scalable, production-ready AI infrastructure 𝐌𝐲 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 AI Agents & Multi Agent Systems Generative AI Developer & LLM Developer AI Workflow Automation & Intelligent Automation n8n Automation Specialist Zapier Developer & Zapier Automation Make com Automation Expert API Integration & AI Tools Integration Data Extraction AI & Document Processing AI Enterprise AI Solutions & End-to-End AI Project Implementation 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 / 𝐂𝐨𝐫𝐞 𝐒𝐤𝐢𝐥𝐥𝐬 AI-Assisted Dev Tools: Antigravity, Cursor, Windsurf, GitHub Copilot, Replit, Claude Code, OpenClaw. AI / ML & LLMs: GPT-5, GPT-4o, Claude, Llama 3, TensorFlow, PyTorch, Hugging Face Transformers, LlamaIndex, Prompt Engineering AI Agents & AI Automation: OpenAI Agent SDK, OpenClaw, LangChain, Flowise, Ray, Crew AI, Autogen, Multi-Agent Frameworks, Agentic AI, RAG Pipelines AI Chatbots & AI Voice Agents: Vapi, Deepgram, ElevenLabs, Whisper, Conversational AI, Text-to-Speech, Speech-to-Text. Frontend/Backend: React.js, Next.js, Tailwind, React Native, FastAPI, Django Vector Databases: Pinecone, Qdrant, Weaviate, Milvus, PostgreSQL, MySQL, MongoDB, Pandas, NumPy, Real-time Analytics Cloud/DevOps: AWS, Azure, GCP, Docker, Kubernetes, Dapr, CI/CD, Workflow Orchestration, Redis, Celery Integrations & APIs: REST, GraphQL, CRMs (HubSpot, Salesforce), ERPs, Firebase, Slack AI Applications & AI Consulting: Generative AI, AI Agents, AI Automation, AI Workflows, AI-Powered Search, Document & PDF Q&A, and AI Content Generation. I don’t build fragile automations. I design scalable AI systems architecture aligned with your long-term growth. 𝐖𝐡𝐨 𝐈 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 SaaS founders Agencies automating client fulfillment Sales & operations teams Businesses ready for AI-driven digital transformation If you’re looking for: • An AI automation expert who understands business impact • An AI consultant focused on ROI-driven automation • An AI engineer delivering production-ready systems • An AI integration specialist who connects everything seamlessly Let’s build an intelligent system that works for you 24/7. 💬 Send a message and let’s discuss how AI can streamline and scale your operations.
Sentient Arc
Associated with
Sentient Arc
$20K+
earned
Juan Manuel S.
$50/hr
$1M+ earned
Offers consultations
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Blockchain and Web3 developer with 11+ years building smart contracts, DeFi platforms, AI-powered MVPs, and full-stack web applications. CTO and Co-founder of SpaceDev. 100% Job Success. 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 CTO 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). International speaker on Blockchain and technology (Ethereum Argentina, Bitcoin Energy Summit, Blockchain Latam Summit). 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
Hoang Q.
$25/hr
100% Job Success
$60K+ earned
Available now
Offers consultations
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Senior Blockchain Developer | Web3 & Smart Contract Expert I'm a blockchain developer and Web3 architect with English fluency and 9+ years building production-grade smart contracts, DeFi protocols, NFT infrastructure, and crypto wallets. I've shipped audit-ready blockchain solutions for 150+ clients worldwide. 🔹 What I build as a blockchain developer: - DeFi Protocols — lending, staking, yield farming, governance, payment gateways, cross-chain (LayerZero, Axelar, IBC) - NFT Infrastructure — ERC721/ERC1155 smart contracts, NFT marketplaces, minting engines, NFT staking, financial NFTs - Crypto Wallets — ERC-4337 account abstraction, multichain wallets (EVM & non-EVM), MPC, social recovery, gasless UX - Rollups & Modular Chains — OP Stack, zkStack, Celestia DA, EigenLayer, custom sequencers 🔹 Blockchain tech stack: Solidity, Vyper, Rust, Hardhat, Foundry, zkSync, Arbitrum, Optimism, Cosmos SDK, Substrate, Polygon CDK, Cairo, Noir, OpenZeppelin, Seaport, IPFS, Wagmi, RainbowKit, Safe 🔹 Featured blockchain projects: - Play-to-Earn NFT game with custodial crypto wallet - Liquity fork with multi-collateral DeFi architecture - Launchpad on NEAR for tokenized IDOs - Prediction market on Solana - Staking aggregator platform 🔹 How I work: Audit-ready, gas-optimized smart contracts. Transparent communication. Fast prototyping. Outcome-focused. Available for contract, ongoing blockchain development, or Web3 advisory roles. Let's build your next blockchain project together.
Hola Tech
Associated with
Hola Tech
$20K+
earned
Vaughn B.
$80/hr
100% Job Success
$60K+ earned
Available now
Offers consultations
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As a versatile senior software developer, I bring over a decade of expertise in modern web development, with a strong focus on JavaScript/TypeScript, React, NextJS, NodeJS, API integrations, and AI-powered application development. My mission is to use this experience to build innovative, scalable, and practical software solutions across AI tools, SaaS platforms, internal business applications, Web3 products, start-ups, and large-scale refactoring initiatives. I help clients design and build AI-enabled applications that connect modern user interfaces with real business workflows. This includes AI dashboards, internal operations platforms, workflow automation tools, RAG/search experiences, chatbot interfaces, data-driven applications, and API-connected systems that make teams faster and more efficient. My strength is combining strong full-stack engineering fundamentals with AI-assisted development. I can use tools like Cursor, Claude Code, Codex, and similar AI development tools to accelerate planning, scaffolding, debugging, testing, refactoring, and implementation while still reviewing and refining the final code for quality, maintainability, and production readiness. Personal Qualifications - 10+ Years of developing semantic websites with HTML and CSS - 10+ Years of creating rich and interactive websites with JavaScript - 10+ Years of building robust server and API configurations using NodeJS and Rails - Experience building AI-powered web applications, dashboards, workflow tools, and automation systems - Experience working with AI-assisted development tools such as Cursor, Claude Code, Codex, and similar tools - Experience building API-driven applications that connect front-end interfaces with business data and external services - Experience with RAG/search-style applications, chatbot interfaces, structured data workflows, and human-in-the-loop review systems - Experience with React, NextJS, TypeScript, NodeJS, REST APIs, and production web application architecture - Experience with crypto, Web3, fintech, account-based systems, onboarding flows, and secure user experiences - Knowledge of authentication, data modeling, system integrations, dashboards, and operational tooling - Knowledge of specialty frameworks such as TypeScript, LESS, SCSS, BEM - Knowledge of design platforms such as Figma - Knowledge of development stacks WAMP, MAMP, LAMP
Dima L.
$35/hr
100% Job Success
$200K+ earned
Available now
Offers consultations
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𝗛𝗲𝘆 👋 𝗜’𝗺 𝗗𝗶𝗺𝗮, 𝗮 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗮𝗻𝗱 𝗦𝗮𝗮𝗦 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝗺𝗼𝗿𝗲 𝘁𝗵𝗮𝗻 𝟭𝟬 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗶𝗻 𝘄𝗲𝗯 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁, 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀, 𝗮𝗻𝗱 𝗯𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. 𝗜 𝗯𝘂𝗶𝗹𝗱 𝗳𝗮𝘀𝘁, 𝘀𝗲𝗰𝘂𝗿𝗲, 𝗮𝗻𝗱 𝘂𝘀𝗲𝗿-𝗳𝗿𝗶𝗲𝗻𝗱𝗹𝘆 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀, 𝗰𝗿𝘆𝗽𝘁𝗼 𝗲𝘅𝗰𝗵𝗮𝗻𝗴𝗲𝘀, 𝐜𝐫𝐲𝐩𝐭𝐨 𝐰𝐚𝐥𝐥𝐞𝐭𝐬 𝗮𝗻𝗱 𝗺𝗮𝗿𝗸𝗲𝘁𝗽𝗹𝗮𝗰𝗲𝘀 𝘁𝗵𝗮𝘁 𝗵𝗲𝗹𝗽 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝘀𝗰𝗮𝗹𝗲 𝗮𝗻𝗱 𝘀𝘂𝗰𝗰𝗲𝗲𝗱. If you need a reliable React developer, Node.js backend developer, or mobile app developer who can take your idea from concept to launch, you’re in the right place. 🔸 100% Job Success 🔸 5.0 Review Rating 🔸 TOP 1% on Upwork 🔸 $600k+ Earned by Agency 🎯 Highlights of My Experience 1) Over 10 years of hands-on experience as a Full-Stack Developer and SaaS developer. 2) Delivered more than 200 projects, including 27 crypto exchange platforms, 35 multi-vendor marketplaces, 14 crypto wallets, and 43 SaaS apps. 3) Strong expertise in React, Node.js, JavaScript, and blockchain development for scalable applications. 4) Deep understanding of cryptocurrency, currency exchange systems, crypto wallets and marketplace ecosystems similar to Amazon. 5) Focused on clean architecture, performance, and clear communication. ⚙️What I Do I design and develop SaaS platforms, marketplaces, crypto wallets and crypto exchanges that are modern, secure, and easy to manage. As a full-stack developer, I work with React on the frontend and Node.js or Laravel on the backend, connecting everything through strong APIs. Here’s how I can help you: 1) SaaS development: building analytics dashboards, subscription systems, and cloud-based tools for your business. 2) Crypto exchange development: creating cryptocurrency and currency exchange apps with wallets, real-time trading, and admin dashboards. 3) Marketplace development: developing multi-vendor marketplaces with complex payment flows, order management, and seller portals. 4) Web development: crafting high-performing React and Next.js web apps optimized for speed and SEO. 5) Mobile app development: developing native and cross-platform apps with React Native that integrate seamlessly with your SaaS or crypto backend. 6) Blockchain development: implementing smart contracts, Web3 integrations, and secure wallet features. 7) Crypto wallet development: creating mobile wallet and digital wallet apps similar to Trust Wallet with blockchain integration, security layers, and user-friendly crypto-trader tools. 🧰 Tech Stack 1) Frontend: React, Next.js, Vue.js, Tailwind CSS, JavaScript 2) Backend: Node.js, Nest.js, Express.js, Laravel, PostgreSQL, MongoDB 3) Mobile: React Native, Flutter, Firebase 4) Blockchain: Ethereum, Binance Smart Chain, Solana, Solidity, Web3.js, Ethers.js 5) Cloud & DevOps: AWS, Docker, CI/CD, Google Cloud Every product I build combines React performance, Node.js reliability, and blockchain security to support scalable crypto exchanges, wallets, and SaaS platforms. 🌟 Why Work With Me 1) 100% Job Success and 5.0★ client rating. 2) Over $100k earned through completed SaaS, marketplace, and crypto projects ( crypto exchanges and crypto wallets ). 3) Transparent communication and full project ownership. 4) I handle both frontend and backend development, including React, Node.js, and API integration. 5) Experienced blockchain developer for crypto exchange UI, mobile wallet, and digital wallet apps. 6) Proven record of building secure blockchain infrastructures trusted by crypto traders and businesses worldwide. 💡 Specializations 1) SaaS developer (dashboards, analytics, automation) 2) Full Stack Developer (React / Node.js / JavaScript) 3) Blockchain developer (smart contracts, wallets, DeFi) 4) Marketplace developer (multi-vendor systems, Amazon-style models) 5) Crypto exchange developer (secure currency exchange platforms) 6) Web developer and React developer (modern UI/UX and API-driven apps) 7) Mobile app developer (React Native, Flutter) 8) Backend developer (Node.js, Nest.js, Laravel) 9) Crypto wallet developer (mobile wallet, digital wallet, Trust Wallet-style apps) If you’re looking for a Full-Stack Developer who can build your next SaaS, crypto exchange, or crypto wallet app with React, Node.js, and blockchain, let’s connect. I respond quickly and can help you turn your idea into a working product that users will love with my BDM skills. 💬 Message me today, and let’s start building something amazing.
Peiko Inc.
Associated with
Peiko Inc.
$700K+
earned
Jitendra J.
$18/hr
92% Job Success
$200K+ earned
Available now
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📈 $200K+ Earned | 13+ Years Experience | 50+ Apps Launched I build scalable, high-performing mobile and web apps from the ground up so you don’t need to hire multiple freelancers. From design to deployment, I make sure your app is fast, secure, and user-friendly. 🚀 Core Services:- - Mobile App Development: Android (Kotlin, Java), iOS (Swift, Objective-C) - Cross-Platform Apps: Flutter, React Native - Backend Development: Node.js, PHP, Python, Firebase, AWS, MongoDB, MySQL - AI Integrations: ChatGPT, Azure OpenAI, LLaMA 2, AI automation - Cloud Solutions: Firebase, AWS, Azure - Payment Systems: Stripe, PayPal, Razorpay, in-app purchases 🏆 Selected Success Stories:- - Healthcare SaaS App – HIPAA-compliant telemedicine platform with AI symptom checker. - Marketplace App – Built from scratch with Firebase backend, integrated Stripe payments, and real-time chat. - Fintech Mobile Banking – Real-time KYC verification, fraud detection, and secure payment processing. - Live Streaming Platform – HD streaming, video-on-demand, and AI-powered content recommendations. 💡 Why Clients Hire Me:- - 12+ Years Android Development | 9+ Years iOS Development | 8+ Years Flutter & Hybrid - 50+ apps launched with 4.8★ average rating - Strong track record in Healthcare, Fintech, E-commerce, Education, SaaS, AI - End-to-end delivery: Idea → UI/UX → Development → Launch → Maintenance - Clear communication, on-time delivery, and scalable solutions 🧠 AI & Machine Learning Expertise:- - AI Chatbots, Recommendation Engines, Predictive Analytics - OpenAI GPT-4, Azure OpenAI, LLaMA / LLaMA 2 - AI integration for Healthcare, Fintech, E-commerce, SaaS 📩 Let’s Build Something Great - Message me with your idea and I’ll send you a tailored action plan, realistic timeline, and cost estimate based on your exact needs. 💼 Domain I have worked:- Android Development, iOS Development, Mobile App Development, Kotlin Development, Xcode Development, Swift Development, Android Studio Development, GitHub Repo Expert, Flutter Expert, Flutter Development, GPS Implementation, Hybrid Mobile Development, AWS Authorization, Cloud Based Integration, Firebase Expert, SaaS Expert, B2B & B2C Expert, Full-Cycle Product Development, Startup App Prototyping, Chatbot Development, AI Chatbots Development, AI Based Healthcare Development, AI Based Financial Development, AI SaaS Project Development, Integrate Open AI in Multiple Project Development, Custom App Development.
Inventco Software Pvt. Ltd.
Associated with
Inventco Software Pvt. Ltd.
$20K+
earned
Nishant N.
$25/hr
97% Job Success
$200K+ earned
Available now
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I help startups and businesses build SaaS platforms, fintech products, and mobile applications that scale from MVP to production. With 7+ years of experience in full-stack product development, I've worked with founders and growing businesses to design, build, and scale digital products across fintech, HR Tech, logistics, crowdfunding, loyalty platforms, Web3 ecosystems, and mobile applications used by thousands of users worldwide. Whether you need an MVP, a scalable backend architecture, or a complete end-to-end product, I can help turn your idea into a production-ready solution. What I Can Help You Build: • SaaS platforms with multi-user roles & dashboards • Fintech products (payments, wallets, ledgers, virtual cards) • Scalable backend architecture (Node.js, APIs, DB design) • MVP development for startups with a focus on speed, scalability, and future growth Experience: • 7+ years building SaaS, fintech, mobile, and Web3 products • Experience working with startups, founders, and growing businesses • Delivered end-to-end solutions from product planning and architecture to deployment and scaling Solutions I've Delivered: • Multi-tenant SaaS platforms • Fintech dashboards and wallet systems • Mobile apps using Flutter • Admin panels and reporting systems • Payment gateway integrations • Loyalty and rewards platforms • Crowdfunding platforms • Web3-enabled products Why Clients Work With Me: • End-to-end product development (no need to hire multiple people) • Strong balance of business understanding + technical execution • Reliable delivery with clean architecture • Long-term technical support & scalability focus • Ability to translate business requirements into scalable technical solutions • Strong expertise across SaaS, Fintech, and mobile ecosystems How I Work: • I think like a product owner, not just a developer • I focus on scalable architecture, maintainable code, and long-term product growth • I communicate clearly with regular progress updates • I focus on long-term reliability, not quick hacks Tech Stack: • Frontend: React, Next.js, JavaScript, Tailwind CSS • Backend: Node.js, Laravel, PHP, REST APIs • Mobile: Flutter (iOS & Android) • Database: PostgreSQL, MongoDB, MySQL • Other: Payment Gateway Integration, Cloud Deployment, Third-Party API Integration 💬 Let’s Build Something Solid If you're building a SaaS platform, fintech product, or mobile application and need a reliable technical partner, I can help you plan, build, and scale it with a strong foundation from day one. 👉 Send me a message and let’s discuss your project.
Bitrix Infotech Pvt Ltd
Associated with
Bitrix Infotech Pvt Ltd
$600K+
earned