Over the past 21+ years I have worked across early web systems, enterprise software, blockchain platforms, and AI. These days I spend most of my time helping founders and product teams figure out what they actually need to build, and then building it with them. I enjoy making complex technology feel straightforward. That is something clients come back for. I have spent 10+ years deep in blockchain and the last few fully focused on AI. I can connect those two worlds in ways most developers cannot. Clients tell me they appreciate that I do not just execute tasks. I ask questions, flag things that have not been considered yet, and keep the bigger picture in view throughout the project. ARTIFICIAL INTELLIGENCE AND GENERATIVE AI • AI Agents and Multi-Agent Systems using LangGraph, CrewAI, and AutoGen for task automation, research, and business process orchestration • RAG pipelines and enterprise knowledge platforms using Pinecone, Weaviate, Qdrant, and ChromaDB • LLM integration across OpenAI, Claude, Gemini, and open-source models into real business workflows • MCP, prompt engineering, context management, and agentic workflow architecture • AI-powered trading platforms with ML signal generation, backtesting, risk management, and live execution • NLP, sentiment analysis, OCR, document intelligence, and intelligent workflow automation • Computer Vision for object detection, video analytics, behavioral analysis, and real-time event detection • Model deployment, inference optimization, evaluation frameworks, and production AI infrastructure • Backend systems for AI using FastAPI, Flask, Django, GoLang, and Rust BLOCKCHAIN AND WEB3 • 10+ years across Ethereum, Solana, Polygon, BSC, Tron, Flow, Hyperledger Fabric, Stellar, TON, Bittensor, and Aptos • End-to-end Web3 platforms including DeFi protocols, NFT marketplaces, custodial and non-custodial wallets, DEXs, and dApps • Smart contracts in Solidity, Rust, and Cadence covering ERC-20, ERC-721, ERC-1155, security reviews, and audits • Token launches including ICO, IDO, and IEO ecosystems, tokenomics design, and exchange integrations • Whitepapers, governance models, and go-to-market strategy for public, private, and consortium networks • Layer 2 scaling, cross-chain bridges, and gas optimization • Full project lifecycle from architecture and security design through to production delivery PROJECT HIGHLIGHTS • Built a multi-agent RAG system for an enterprise client processing 1M+ internal documents, reducing research time by 70 percent • Delivered an LLM-powered support agent using OpenAI and LangGraph handling 10,000+ queries per month with over 90 percent deflection rate • Architected an AI algorithmic trading platform with ML signal generation and live multi-exchange execution • Built an automated crypto trading bot running across Binance, Bybit, and OKX with real-time risk management • Designed and deployed a DeFi lending protocol on Ethereum with 5M+ TVL including liquidation engine and governance • Delivered a supply chain traceability platform on Hyperledger Fabric tracking 500,000+ assets annually • Led end-to-end delivery of multiple NFT marketplace platforms with minting, auction, royalty, and secondary market features • Built a real-time Computer Vision productivity monitoring system deployed across 500+ workstations • Delivered an OCR and NLP document processing pipeline that reduced manual data entry by 85 percent for an insurance client INDUSTRIES SERVED FinTech and Trading | DeFi and Crypto | Enterprise SaaS | Healthcare and MedTech | Supply Chain | Real Estate | E-Commerce | Legal and Compliance | Media Platforms HOW I WORK • I ask a lot of questions upfront, not to slow things down, but because the right questions save weeks later • I am easy to talk to, even on technical topics. Non-technical founders tell me I make things click for them • You will always know where the project stands. I do not go quiet and reappear with a finished build • I have worked with clients across the US, Europe, the Middle East, and Asia. Async communication is second nature to me CORE TECH STACK AI and ML: Python, LangChain, LangGraph, CrewAI, AutoGen, OpenAI, Claude, Gemini, HuggingFace, Pinecone, Weaviate, Qdrant, ChromaDB, FastAPI, Flask, Django Blockchain: Solidity, Rust, Cadence, Web3.js, Ethers.js, Hardhat, Foundry, Anchor, Truffle Backend and Infrastructure: GoLang, Node.js, .NET, Docker, Kubernetes, AWS, GCP, Azure Frontend: React, Next.js, TypeScript If you are not sure exactly what you need yet, that is fine. That is usually where the best conversations start. Send me a message and we will figure it out together.

My strengths are tied to adding the Highest value to my customer products, reducing cost and optimising usage of resources. Offering, a world class service with clear communication skills . I have gained experience in the digital world with clear knowledge about cutting edge technologies helping others to develop their own income streams.

I'm a Top Rated freelancer specializing in production level systems across Full-Stack, SaaS, B2B platforms, AI integrations and automation heavy applications. I build production systems that don't break under real usage and hold up under real users, real data and real business pressure. My work sits at the intersection of Full-Stack engineering, AI systems, CMS platforms and business critical integrations. I focus on building applications that are stable, scalable and actually usable in real world environments. * On the frontend I build modern web applications using #React and #Next.js with #Typescript, #Tailwind CSS and scalable component based architecture. I focus on #clean UI, #responsive layouts, #performance optimization, #accessibility and smooth user experience across desktop and mobile. I also work with #dashboard systems, #SaaS platforms, #real interfaces, #authentication flows and complex frontend state management. *On the backend I design and develop scalable systems using #Node.js, #Python and #Go with #PostgreSQL, #Supabase, #MongoDB and #REST/GraphQL APIs. My work includes #authentication systems, role based access control, #payment integrations, #automation workflows, #file handling, #API architecture, #database design and #cloud deployment. I focus heavily on maintainability, security, performance and building backend infrastructure that can scale without becoming difficult to manage later. * On the CMS side I work extensively with #Shopify and #WordPress including #custom theme development, #storefront customization, #Shopify Liquid, #App integrations, #WooCommerce, #Elementor, #Divi, #WPBakery and #performance optimization. I also handle #CMS migrations, #responsive redesigns, #SEO friendly structures and ongoing maintenance for production websites and eCommerce stores. * On the Automation & B2B system side I build workflow automation and integration systems that connect business tooles into unified processes. # API integrations(thrid party SaaS systems, CRMs, internal tools) # Workflow automation pipelines # Data synchronization systems # Event based automation # Scheduled jobs # Webhook orchestration # ETL-style data flows # Reporting automation and system to system communication design I specialize in reducing manual business operations by turning them into automated, reliable backend workflows. Where I bring extra value is in AI and system design. I don't just plug in APIs. I design AI features that fit into the product. # LLM integrations & LLM based workflow design for real workflows # Retrieval augemented systems and internal knowledge tools # AI driven reporting and automation pipelines # Structured, predictable outputs for business use # OpenAI API integration # Prompt-to-structured-output systems # RAG & vector database concepts I also work with SAP integrations and B2B data flows, connecting external systems, APIs and enterprise tools into a clean, reliable arhcitecture. This includes handling structured data, automations and backend logic that supports business operations. My QA background shapres everything I build. I'm ISTQB certified and experienced in both manual and automation testing using Java and Python, along with tools like Locust and Gatling for performance and load testing. *** I validate how they behave in real world conditions. This means after delivery, deployment, systems are tested with a quality focused mindset. I focus on edge cases, performance issues, API reliability and user flow stability are all considered before delivery. *** If you're building something that needs to be reliable, scalable and actually used by customers or internal teams, I can help you get it there. Regards, Oleksandr.

Founder and CTO at 99x Brazil: we help startups and scale-ups build and scale digital products with senior, product-minded engineers who integrate seamlessly with your team. We are a team of 60+ engineers based in Brazil, fluent in English with experience helping Fortune 500 companies, VC-backed startups, and early-stage founders. We provide embedded engineers or full squads who operate like internal team members. They are proactive, autonomous, and focused on product outcomes, not just task execution. Why work with us:  • 100% Job Success Score on Upwork with 20,000+ hours  • Senior, bilingual engineers working your time zone (EST to PST)  • Proven experience across startups, scale-ups, and enterprise environments  • Direct access to engineers for fast and accurate evaluation  • AI-enabled engineers to ship high-quality products faster and reduce burn. We support the full product lifecycle from strategy and design to engineering and QA, and our teams typically work with AI/ML, React, Next.js, Node.js (NestJS and Express), Python (Django and FastAPI), Java (Spring Boot and Spring Cloud), Golang, iOS/Swift, Android/Kotlin, and cloud platforms such as AWS, GCP, and Azure. We adapt the stack to your product stage, architecture, and business goals. We have also been working extensively with AI-driven software development and AI-enabled engineering approaches to help companies accelerate delivery, improve software quality, and reduce operational burn. Our AI capabilities include: • AI-enabled engineers focused on shipping high-quality products faster through AI-assisted development workflows. • AI-driven autonomous QA pipelines using LLMs, LangChain, Playwright CLI, and Jira MCP integrations to generate, execute, and report end-to-end tests, adaptable across multiple platforms and systems. • AI agents and orchestration workflows integrated into the AI-SDLC for code review, observability, specification generation, engineering automation, and delivery acceleration. Reach out to speak with me directly.

🏆 Top Rated | 100% Job Success | 5 Star Reviews ⭐⭐⭐⭐⭐ Looking for a GoHighLevel expert, n8n automation developer, and full stack engineer who actually delivers? I'm Saad, a full stack developer and automation specialist with 10+ years of experience. I help agencies, SaaS founders, and growing businesses build systems that run without babysitting. Here's what I do best: GoHighLevel (GHL) CRM Automation ✅ Custom CRM setup, sub-account management, snapshot creation ✅ Sales funnel and pipeline automation ✅ GHL + Mailchimp, ManyChat, Twilio, and Stripe integrations ✅ API integrations and webhook connections ✅ White-label agency portal setup n8n Workflow Automation & AI Agents ✅ Self-hosted n8n deployment and custom workflow builds ✅ AI agent development using OpenAI, LangChain, and vector databases ✅ RAG pipeline setup for document intelligence ✅ Voice bot and conversational AI automation ✅ Zapier and Make replacement builds ✅ CRM sync, lead capture, and notification automations Full Stack Web Development (MERN & Golang) ✅ React.js frontends with NextJS, SSR, and Tailwind CSS ✅ NodeJS and Golang backend APIs and microservices ✅ REST and gRPC API development and integration ✅ MongoDB, PostgreSQL, Redis database architecture ✅ AWS, Google Cloud, Docker, and Kubernetes deployment ✅ SaaS application development from MVP to production I don't disappear mid-project. I flag issues early, communicate clearly, and ship clean code that your next developer can read. Send me a message, describe what you need and I'll tell you honestly if I'm the right fit.

I’m a Senior Full-Stack Developer focused on building reliable web applications, backend systems, and automation-heavy products that solve real business problems. My main stack is Go, NestJS / Node.js, React, TypeScript, PostgreSQL, Prisma, Docker, and REST API integrations. I’ve worked on platforms involving authentication, KYC flows, internal tools, admin dashboards, payments, workflow automation, and third-party integrations. I’m strongest when a project needs more than just code — when it needs clear thinking, clean architecture, and a practical implementation that can actually scale and be maintained. I care a lot about writing structured, readable code and choosing solutions that fit the product stage instead of overengineering. I can help with: Full-stack web application development Backend APIs with Go or NestJS React frontends and admin dashboards Database design with PostgreSQL / Prisma Workflow automation and integrations Refactoring and improving existing codebases Debugging, performance, and production fixes I’ve worked on systems where reliability matters: user onboarding, verification flows, internal operations, purchases, reporting, and business process automation. I’m comfortable taking ownership of features end to end, from planning and implementation to cleanup and optimization. If you need a developer who can understand the business problem, move fast, and still keep the codebase clean, I’d be glad to help.

💻 Java • Rust • Go • Python • Docker • Kubernetes • CI/CD-Pipelines 🚀 Software Developer with 5+ years of experience building reliable, efficient, and maintainable backend systems. I specialize in developing clean, production-ready applications — from REST APIs and data pipelines to event-driven microservices. 🛠️ Whether it’s developing a full system from scratch, extending existing platforms, or rewriting legacy code in modern stacks, I deliver high-quality software that’s easy to understand, test, and deploy. ⚙️ My work is grounded in real-world DevOps: CI/CD pipelines, containerized environments, cloud-native tooling, and Git-based workflows are second nature. I bridge the gap between development and operations to make your software run smoothly — from code to deployment. 🌍 Fluent in English, German, and Arabic, I collaborate easily across teams and cultures. If you need a backend engineer who codes with purpose, communicates clearly, and delivers with confidence — I’m ready when you are.

One thing is clear from my past 17 years in the trenches: CRM systems are the unsung heroes of sales success only when integrated with AI/Open AI ChatBot. That's why I architect solutions using Zoho, Salesforce, Odoo, Podio, and my full-stack AI/ML development prowess. 𝙄 𝙝𝙖𝙫𝙚 𝙨𝙤𝙡𝙪𝙩𝙞𝙤𝙣𝙨 𝙛𝙤𝙧 𝙚𝙫𝙚𝙧𝙮𝙩𝙝𝙞𝙣𝙜 𝙚𝙣𝙜𝙞𝙣𝙚𝙚𝙧𝙞𝙣𝙜, 𝙨𝙘𝙖𝙡𝙞𝙣𝙜, 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤𝙢𝙖𝙩𝙞𝙣𝙜. 𝘼𝙣𝙮 𝙙𝙤𝙪𝙗𝙩𝙨? 𝙈𝙮 5-𝙨𝙩𝙖𝙧 𝙧𝙖𝙩𝙞𝙣𝙜 𝙨𝙥𝙚𝙖𝙠𝙨 𝙫𝙤𝙡𝙪𝙢𝙚𝙨! 𝗜𝗠𝗣𝗢𝗥𝗧𝗔𝗡𝗧 thing is: I don't just customize workflows, I automate the whole of your sales funnel and integrate your CRM with a symphony of business tools—and now AI—to boost conversion rates by 30% (proven!). Let's talk about how I can supercharge your CRM. 𝐌𝐲 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬: ✔️ CRM Strategy & Selection: Guide you in choosing the perfect CRM platform based on your unique needs and goals. ✔️ CRM Implementation & Customization: Seamlessly set up and configure your CRM to optimize workflows and user experience. ✔️ Data Migration & Integration: Ensure smooth data transfer from existing systems and integrate your CRM with other essential business tools. ✔️ Automation & Development: Build custom automation and integrations to streamline processes and unlock the full potential of your CRM. ✔️ AI & Chatbot Integration: Implement AI-driven solutions such as smart chatbots, lead scoring algorithms, and workflow automation inside platforms like Salesforce, Zoho, GHL, and Podio. ✔️ Machine Learning Services: Leverage ML models to analyze customer data, predict sales trends, and create personalized marketing flows. 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥𝐬: ✔️ Zoho (CRM, Books, Invoicing, Creator, Billing, Zia AI Integration) ✔️ Odoo (CRM, Accounting, Invoicing, Billing, AI Add-ons) ✔️ Podio (CRM, Project Management, Custom App Building, Lead Automation, AI Chatbot Integration) ✔️ HighLevel (Workflow Automation, Smart AI Chat Flows, Campaign AI Triggers) ✔️ Salesforce (Sales Cloud, Service Cloud, Marketing Cloud, Mulesoft, Lightning, AppExchange, Commerce Cloud, Einstein AI) ✔️ Full-stack development ✔️ API Integrations (REST, SOAP, Webhooks, AI/ML APIs) ✔️ OpenAI, Dialogflow, IBM Watson, Azure AI, and custom ML models 𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞? ✔️ Deep CRM Expertise: Proven track record of delivering successful CRM implementations across diverse industries. ✔️ AI-Enhanced Solutions: Specialized in embedding intelligent automation and chat experiences into your CRM. ✔️ Technical Prowess: I can handle complex integrations, customizations, and ML logic with ease. ✔️ Communication & Collaboration: I work closely with you to understand your vision and deliver solutions that exceed expectations. ✔️ Focus on ROI: I'm passionate about helping businesses achieve tangible results through strategic CRM + AI integration. I excel in analyzing business workflows and contributing to projects in healthcare, manufacturing, HR management, and E-commerce. Certified in ITIL V3 and PRINCE2, I ensure adherence to best practices in IT service and project management. If you seek a comprehensive IT professional who merges CRM expertise with the power of AI, feel free to reach out for collaboration.

🏆 Top Rated | 100% Job Success | $80K+ Earned | 130+ Projects Delivered I help businesses build, migrate, automate, and scale Shopify and WooCommerce stores through custom development, API integrations, business automation, and operational systems. Over the last 10+ years, I have worked with startups, agencies, and established businesses to deliver ecommerce solutions that go beyond storefront design and focus on real business operations. Recent project experience includes: • WooCommerce → Shopify migrations • Subscription and membership platforms • Shopify Flow automations • Custom Shopify and WooCommerce functionality • Operational dashboards and CRM integrations • Payment gateway integrations • Inventory and fulfillment workflows • Klaviyo email automation • API and webhook integrations • Business process automation Key expertise: ✓ Shopify Theme Development & Customization ✓ Shopify Apps & Admin API Integrations ✓ WooCommerce Development & Customization ✓ WooCommerce to Shopify Migrations ✓ Membership & Subscription Systems ✓ Shopify Flow Automation ✓ CRM & Business System Integrations ✓ Payment Gateway Integrations ✓ Custom Dashboards & Operational Systems ✓ API, Webhook & Third-Party Integrations ✓ Performance Optimization & Troubleshooting I am often brought into projects where the challenge is not only development but also connecting systems, automating workflows, reducing manual processes, and creating reliable operational foundations that support business growth. Clients value my ability to understand both the technical and operational side of a project, communicate clearly, and take ownership from planning through implementation and ongoing support. If you're looking for a developer who can help streamline operations, automate processes, and build scalable Shopify or WooCommerce solutions, I'd be happy to discuss your project.

I build production-ready Agentic AI systems, RAG chatbots, and full-stack LLM applications that help businesses automate workflows, search internal knowledge, and turn complex data into intelligent AI assistants. I’m Ali Masroor, a Top-Rated Full Stack AI Developer with 10+ years of software development experience, a 100% Job Success Rating, and a Bachelor’s Degree in Computer Science. My main focus is building AI-powered applications using LangGraph, LangChain, OpenAI, Claude, RAG pipelines, vector databases, React, Node.js, Next.js, NestJS, Express.js, PostgreSQL, MongoDB, and scalable backend architectures. I can help you build: • Agentic AI workflows using LangGraph, LangChain, tool calling, function calling, and multi-step reasoning • RAG chatbots trained on PDFs, websites, documents, CRMs, databases, and internal knowledge bases • AI assistants for customer support, sales, onboarding, operations, and internal teams • LLM-powered SaaS platforms with React, Next.js, Node.js, NestJS, Express, PostgreSQL, and MongoDB • Document AI systems for PDF Q&A, data extraction, summarization, and automation • AI dashboards and admin panels with secure APIs, user roles, and clean UI/UX • Full-stack MERN/PERN applications integrated with AI models, vector search, and automation tools My technical stack includes: Agentic AI: LangGraph, LangChain, AI Agents, Tool Calling, Function Calling, Agentic Workflows, Multi-Step Automation RAG & Vector Search: RAG Pipelines, Pinecone, Vector Databases, Semantic Search, Document Q&A, Knowledge Base Chatbots LLM Applications: OpenAI API, ChatGPT, Claude, Gemini, Prompt Engineering, Structured Outputs, AI Chatbots Frontend: React.js, Next.js, Vue.js, Svelte, Redux, React Query, HTML5, CSS3, Bootstrap, Material Design Backend: Node.js, NestJS, Express.js, Fastify, REST APIs, GraphQL, PHP Yii2 Databases & Architecture: PostgreSQL, MongoDB, Redis, MERN, PERN, Microservices, RabbitMQ, AWS SQS Tools & Workflow: Docker, AWS, GitFlow, Jira, Swagger, OpenAPI, Postman, CI/CD What makes me different is that I don’t just build AI demos or chatbot wrappers. I build complete, reliable, and scalable AI products with clean architecture, secure APIs, optimized databases, polished user interfaces, and maintainable code. If you need an Agentic AI assistant, LangGraph workflow, RAG chatbot, AI-powered SaaS platform, or a full-stack web application with modern AI capabilities, I can help you take it from idea to production.