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Habib U.
$25/hr
100% Job Success
$50K+ earned
Available now
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𝙄 𝙝𝙚𝙡𝙥 𝙛𝙤𝙪𝙣𝙙𝙚𝙧𝙨 𝙗𝙪𝙞𝙡𝙙, 𝙧𝙚𝙨𝙘𝙪𝙚 𝙖𝙣𝙙 𝙨𝙘𝙖𝙡𝙚 𝙎𝙖𝙖𝙎, 𝙈𝙑𝙋, 𝘼𝙄 𝙖𝙣𝙙 𝙑𝙤𝙞𝙘𝙚 𝘼𝙄 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. My goal is simple: • Help you launch faster • Reduce manual work using AI • Keep AI and cloud costs under control • Avoid expensive technical mistakes • Build a stable product that can grow • Take technical work off your plate I am an AWS Certified Solutions Architect and Full-Stack Developer with 9+ years of experience building production systems for companies across the US, UK, Australia, Saudi Arabia, and other international markets. 𝗛𝗼𝘄 𝗜 𝗖𝗮𝗻 𝗔𝗱𝗱 𝗩𝗮𝗹𝘂𝗲 - 𝗦𝗮𝗮𝗦 𝗮𝗻𝗱 𝗠𝗩𝗣 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 I help founders plan, build, launch, and scale production-ready SaaS and MVP products. This includes architecture, frontend, backend, mobile apps, payments, dashboards, integrations, cloud deployment, and long-term support. - 𝗔𝗜-𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗲𝗱 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗥𝗲𝘀𝗰𝘂𝗲 Built your product with Lovable, Bolt, CoReplit, or Cursor? I can fix broken features, improve security and performance, clean up the codebase, and prepare the product for real customers without rebuilding everything unless it is necessary. - 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀 𝗮𝗻𝗱 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 I build AI systems that reduce manual work, improve response time, and lower operating costs. This includes AI agents, RAG systems, document processing, customer support automation, internal knowledge tools, and AI workflow automation. - 𝗩𝗼𝗶𝗰𝗲 𝗔𝗜 I build Voice AI agents that answer calls, book appointments, take orders, qualify leads, update business systems, and transfer calls when needed. I also built CallSynthra, a customisable voice AI platform for clinics, restaurants, logistics, and service businesses. - 𝗔𝗜 𝗖𝗵𝗮𝘁𝗯𝗼𝘁𝘀 I build AI chatbots that answer customer questions, qualify leads, book appointments, automate support, and connect with CRM and business systems. 𝗣𝗿𝗼𝘃𝗲𝗻 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 - 𝗞𝗶𝘀𝘀 𝗟𝗼𝘆𝗮𝗹𝘁𝘆 (Healthcare SaaS) Helped design and scale a secure multi-tenant SaaS platform from around 100 users to approximately 500,000 users without requiring a complete rebuild. Tech: React, Next.js, Node.js, PostgreSQL, Redis, Docker, AWS ECS, RDS, CloudWatch, Cloudflare - 𝗧𝗲𝗰𝗵𝘀𝗵𝗶𝗽 (Logistic SaaS) Built and scaled a logistics SaaS platform supporting 30+ tenants and running in production for more than 4+ years. Tech: Node.js, Spring Boot, Next.js, MySQL, Redis, GCP, Kubernetes, Docker - 𝗖𝗮𝗹𝗹𝗦𝘆𝗻𝘁𝗵𝗿𝗮 (Voice AI, AI Product) Built a Voice AI platform that can answer calls 24/7, book appointments, take orders, qualify leads, access business knowledge, update systems, and complete follow-up actions. Tech: Python, FastAPI, Next.js, LangGraph, Twilio, Cartesia, Deepgram, Qdrant - 𝗔𝘀𝘀𝗲𝘁 𝗣𝗹𝗮𝗻𝗲𝘁 (Fintech Platform) Built web, mobile, and serverless backend features for a fintech platform and maintained the system for more than 3+ years. Tech: Node.js, TypeScript, React, Next.js, React Native, MySQL, WebSockets, AWS Lambda, Plaid API, Twilio, Stripe, Apple Pay, Google Pay 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗚𝗲𝘁 → A clear technical plan before development starts → Practical architecture without unnecessary complexity → Clean and maintainable code → Better control over cloud and AI costs → Clear documentation → Early communication about risks → End-to-end technical ownership → Long-term support after launch 𝗟𝗼𝘄-𝗥𝗶𝘀𝗸 𝗙𝗶𝗿𝘀𝘁 𝗦𝘁𝗲𝗽 Before committing to a large project, I can review your idea, MVP, or current codebase and share: • The main technical risks • What should be fixed first • What can be reused • A recommended architecture • A practical development roadmap This gives you clarity before spending more money on development. ✅ 𝗪𝗲 𝗔𝗿𝗲 𝗮 𝗚𝗼𝗼𝗱 𝗙𝗶𝘁 𝗜𝗳 • You are building an AI, Voice AI, SaaS, or MVP product • You need someone who can take technical ownership • You have an MVP that needs to become production-ready • Your AI-generated project is becoming difficult to manage • You want better security, performance, scalability, or cloud cost control • You need support across architecture, development, cloud, and AI • You want a long-term technical partner, not only someone who completes tickets I work best with founders who value clear communication, practical decisions, and long-term product growth. 𝗖𝗼𝗿𝗲 𝗦𝘁𝗮𝗰𝗸 AI: OpenAI, Claude, Gemini, LangChain, LangGraph, RAG, Pinecone, Qdrant Voice AI: Twilio, ElevenLabs, AssemblyAI, Speech-to-Text, Text-to-Speech, Retell AI, Vapi AI Backend: Python, FastAPI, Django, Node.js, NestJS, Java Spring Boot Frontend and Mobile: React, Next.js, TypeScript, React Native Cloud: AWS, GCP, Docker, Kubernetes, Terraform, CI/CD 𝗦𝗲𝗻𝗱 𝗺𝗲: What you are building Your current stage Your biggest technical problem I will review it and suggest the most practical next step.
Habib U. has worked .
Volodymyr L.
$55/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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I turn AI ideas into working products - fast. Founders and teams come to me to skip the months of LLM experimentation and get straight to an MVP that holds up in the real world. Full Stack Developer & SaaS Developer & AI expert who helps startups and businesses quickly launch and scale SaaS and CRM products with AI automation, reducing operational costs, saving time, and driving measurable business growth. Scale your AI SaaS or CRM with Node.js developer to a production system after the MVP stage. AI SaaS developer who builds production-ready SaaS platforms, custom CRM systems, helps with SaaS marketing, and AI-powered applications used in 27+ countries, processing millions of records daily with 99.9% uptime. My background combines full stack development, AI integration, and CRM architecture. ✅ Full Stack Development - Backend: Node.js, Nest.js, PHP, Ruby, Python, Go, WordPress, Yii, Laravel - REST & GraphQL APIs, authentication, payments - High-load systems handling 10M+ monthly requests ✅ SaaS & CRM Development (SaaS Developer) - Custom CRM systems from scratch: dashboards, pipelines, roles & permissions - SaaS multi-tenant architectures - Subscription billing, admin panels, analytics - MVP delivery in 2-4 weeks ✅ AI Integration & AI Automation - OpAI API & LLM-powered CRM features with Claude, Grok, Gemini, ChatGPT - AI Auto assistants, content generation, data enrichment - Python based and Node.js based automation for sales & operations - LangChain, vector search, AI-driven dashboards - CRM & SaaS Business Results 🚀 97% user adoption within 3 months 💰 SaaS & CRM platforms processing $200K+/month ⚡ 40% reduction in operational costs via AI automation 📈 Platforms scaled to 320K+ users across 27+ countries Selected Projects - AI-Driven CRM: Built a custom CRM with AI-powered lead scoring, automated follow-ups, and reporting — reducing sales admin work by 60% - AI Integration specialist for SaaS: AI expert implemented content automation producing 500+ SEO articles/month, saving $4,000/month - Enterprise CRM & Finance Dashboard: Aggregated 1M+ transactions across QuickBooks, PayPal, Wise, and Xero — saving 40+ hours/month - Logistics CRM & SaaS Platform: Tracked 1,200+ vehicles, integrated Mapbox & Twilio, reducing late deliveries by 27% Tech Stack: (Full Stack, Web, Backend): Frontend & Web UI - React, Next.js, TypeScript - Vue.js, Nuxt.js - Angular - Tailwind CSS, component-based design systems (Backend & APIs): Node.js, PHP, Backend Development, NestJS, Express.js, REST APIs, webhooks, Laravel GraphQL where it makes sense, API integration, AI machine learning. CRM: Custom CRM development, CRM integrations, automation AI Integration: OpenAI API, LangChain, Python automation, Claude, Grok, Gemini, ChatGPT Cloud: AWS, Docker, Kubernetes, AWS, Cloud deployment APIs: Payments, Maps, Messaging, Analytics IoT (Optional): ESP32, Raspberry Pi, Embedded Linux Databases & data - PostgreSQL, MySQL, MongoDB, Redis Automation & AI - n8n, Node-RED - OpenAI / LLM integrations, AI chatbots, AI agents DevOps & delivery - Docker, CI/CD, GitHub / GitLab pipelines - AWS-based deployments (EC2, ECS, RDS, S3, Lambda) Who I Work With: ✔ Companies needing a Full Stack Developer ✔ Startups hiring a SaaS Developer ✔ Businesses looking for CRM development ✔ Teams wanting AI-powered CRM automation Looking for a SaaS Developer, Backend developer, React developer, or CRM expert? Full-Stack Engineer and SaaS Developer with 12+ years of experience, helping startups and businesses launch MVPs in under 4 weeks, scale to 320K+ users, and implement AI integration and CRM systems that reduce costs and accelerate growth. 🔄 How I work - Start with a short discovery phase: goals, users, constraints, key features - Define architecture and plan: phases, priorities, risks and integrations - Break work by AI Solution Architect into clear releases (MVP → v1 → further iterations) - Keep the codebase clean and extensible, avoiding one-off hacks - Provide transparent updates & stay available after launch for support and growth. ✅ We’re a good match when you: - building or evolving a SaaS platform, marketplace, booking system or internal B2B platform - need a Full-Stack Developer who can own frontend, backend and integrations - not just fix small bugs - want a AI Solution Architect who thinks like a product engineer, not just a task executor, share your context and scope - I’ll review it and come back with clarifying questions, a structure and proposed next steps. 🤖 AI automation (LangChain/LangGraph Node-RED / OpenAI) I add AI integration when it actually helps the product and the team: - AI-powered chatbots & AI agents for support, onboarding, FAQs, internal tools - OpenAI / LLM integration for summarisation, enrichment, routing, semantic search - RAG-style flows for documents, knowledge bases, internal data - Campaign & CRM automation – email sequences, tagging, lead routing, data sync between systems - AI Solution Architect
Volodymyr L. has worked .
JSDaddy - AI Integration & Full Stack Development Company
Associated with
JSDaddy - AI Integration & Full Stack Development Company
$100K+
earned
Hasan N.
$65/hr
100% Job Success
$100K+ earned
Available now
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I help startups and founders build AI-powered SaaS products, customer portals, and internal platforms using React, Next.js, Node.js, Ruby on Rails, and modern LLM technologies. Whether you're launching a new product, adding AI capabilities to an existing platform, or modernizing legacy software, I can help you take it from idea to production. Over the past 8+ years, I've worked with founders, startups, and growing companies to build SaaS applications, internal platforms, customer portals, and AI-powered products. I've been involved in everything from early-stage MVPs to mature applications serving thousands of users. My focus is always the same: building software that solves real business problems while keeping the codebase clean, maintainable, and easy to scale as the product grows. What I can help with: • AI-powered SaaS products • SaaS MVP development • AI chatbots and AI agents • OpenAI, Claude, and Gemini integrations • RAG applications and intelligent search • Customer portals and dashboards • Internal business tools • API integrations and workflow automation • Legacy application modernization • Application performance and scalability improvements Why clients work with me: ✔ 8+ years of software development experience ✔ 100+ projects delivered ✔ 100% Job Success on Upwork ✔ Top Rated Freelancer ✔ 5,000+ hours worked on Upwork ✔ Strong experience working directly with founders and product teams My core technologies include: Frontend: React.js, Next.js, TypeScript, JavaScript, Tailwind CSS Backend: Ruby on Rails, Node.js, Express.js, Python AI: OpenAI, Claude, Gemini, LangChain, AI Agents, RAG, Vector Search Database & Cloud: PostgreSQL, MongoDB, Redis, Supabase, Firebase, AWS, Docker, Vercel Some recent work includes: • Built AI-powered SaaS products from the ground up • Integrated LLMs into existing SaaS platforms • Modernized Ruby on Rails applications with React and Next.js • Developed customer-facing portals and internal business tools • Improved performance and scalability for growing products I also use modern development tools such as Cursor, Claude Code, and Codex to speed up delivery while maintaining high engineering standards and code quality. If you're looking for a developer who can understand both the technical and product side of your business, I'd be happy to discuss your project. 📩 Send an invitation, and let's discuss your project.
Hasan N. has worked .
Amit S.
$30/hr
100% Job Success
Available now
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🥇 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 Shopify Developer | Certified Shopify Select Partner 📞 Free 30-Minute Consultation Available 🗓️ Click INVITE and I’ll schedule a time that works for you. ➤ 10+ years of experience in Shopify, Shopify Plus, Shopify Store Development, Shopify Store Designer, Shopify Theme development, Shopify Apps Development, Shopify Custom apps development, Shopify Public apps development, Liquid Coding and Shopify Storefront API and External API Integration ➤ Worked with more than 350+ Shopify projects. ► Completed 40000+ hours on Upwork. ➤ Good Written and Verbal English Skills. ⭐️ 𝐌𝐲 𝐖𝐨𝐫𝐤 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐬⭐️ ✪ Shopify | Shopify Expert | Shopify Developer | Shopify Plus | Shopify Partner | Shopify stores Design | Shopify Store Development | Shopify Apps | Liquid Coding | Shopify Templates | Shopify App Developer | Full Stack Engineer ✅ 𝐒𝐏𝐄𝐂𝐈𝐀𝐋𝐈𝐙𝐄𝐃 𝐒𝐄𝐑𝐕𝐈𝐂𝐄𝐒: ◾ Shopify Store Design & Development ◾ Shopify Plus Development ◾ Shopify CRO Expert ◾ Shopify Website Redesign ◾ Shopify Private/Public App Development ◾ Shopify API & Third-Party Integrations ◾ Shopify Page Builders Apps (PageFly, GemPages, etc. ) ◾ Shopify Custom Theme Development and Design ◾ App development from Scratch using NodeJS, React, Laravel. ◾ Headless Shopify Development ◾ Shopify Store ongoing maintainance ◾ SaaS Product Development ◾ Startup MVP Development ◾ Multi-Vendor & Marketplace Solutions ◾ Custom Web Application Development ◾ CRM & ERP Development ◾ AI-Powered Business Solutions ◾ Workflow Automation & System Integration ✅ 𝐏𝐑𝐎𝐆𝐑𝐀𝐌𝐌𝐈𝐍𝐆 & 𝐅𝐑𝐀𝐌𝐄𝐖𝐎𝐑𝐊𝐒 ◾ Shopify Liquid, Shopify APIs & Shopify Functions ◾ PHP, Laravel & Custom Backend Development ◾ JavaScript (ES6+), TypeScript ◾ Node.js, Express.js & NestJS ◾ React.js, Next.js & Vue.js ◾ HTML5, CSS3, Tailwind CSS ◾ REST API & GraphQL Development ◾ Authentication Systems (JWT, OAuth, SSO) ◾ Microservices & Scalable Architecture ✅ 𝐃𝐀𝐓𝐀𝐁𝐀𝐒𝐄 & 𝐀𝐈 𝐓𝐎𝐎𝐋𝐒 ◾ MySQL, PostgreSQL & MongoDB ◾ Database Architecture & Optimization ◾ Redis & Performance Caching ◾ OpenAI API Integration ◾ AI Chatbots & AI Assistants ◾ Business Process Automation ◾ Workflow Automation using Make & Zapier ◾ Data Processing & Reporting Systems ◾ AI-Powered Customer Support Solutions ◾ Analytics & Business Intelligence Dashboards ✅ 𝐔𝐈/𝐔𝐗 ◾ Figma to Shopify / React / Next.js Development ◾ Responsive & Mobile-First Design ◾ Conversion-Focused User Experience ◾ Shopify CRO Optimization ◾ Landing Page Design & Optimization ◾ Product Page Optimization ◾ Wireframes & Interactive Prototypes ◾ Adobe XD, Figma & Photoshop ◾ User Journey & Conversion Funnel Improvements ♦︎♦︎♦︎♦︎♦︎ 𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆 & 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗛𝗼𝘂𝗿𝘀: (𝟰𝟬+ 𝗵𝗿𝘀/𝘄𝗲𝗲𝗸) | Hire Me Today ♦︎♦︎♦︎♦︎♦︎ 𝗥𝗲𝗹𝗮𝘁𝗲𝗱 𝗦𝗲𝗮𝗿𝗰𝗵: Amit Shopify Expert | Shopify App Developer | Full Stack Developer | Shopify Templates Expert | E-commerce Developer | Ecommerce Management Services & Solutions. ➞ Shopify expert on Upwork ➞ Shopify Developer Upwork ➞ Shopify Designer Upwork ➞ Full Stact Developer on Upwork ➞ Laravel Developer on Upwork ➞ Backend Developer on Upwork #Shopify #ShopifyExpert #ShopifyStoreDesigner #FullStackDeveloper #FullStackShopifyExpert #ShopifyDeveloper #ShopifyDesigner #ShopifyPlus #Ecommerce #WebDesign #CSS #HTML #FrontEndDevelopment #ResponsiveDesign #UIUX #Shopifyexpertupwork #ReactDeveloper #React #Topratedplusdeveloper #NodejsExpert #LaravelDeveloper #ShopifyWebsiteDesign #ShopifyAppDeveloper #ShopifyFrontEndDeveloper #LandingPageExpert #Shopifyexpertonupwork #ShopifyPlusdeveloper #Shopifyecommercedeveloper #ShopifyDTCExpert #ShopifyFasionBrandExpert #ShopifyShipstation #ShopifyKlaviyoExpert #ReactDeveloper #AIAutomation #SaaSDeveloper 𝙍𝙚𝙜𝙖𝙧𝙙𝙨, @Amit #ShopifyExpert #FullStackDeveloper #ShopifyAppDeveloperonUpwork
Amit S. has worked .
CodeKing
Associated with
CodeKing
Michel A.
$40/hr
100% Job Success
$20K+ earned
Available now
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⭐ Helped 10+ clients and startups build their MVPs | AI SaaS & Mobile App Developer ⭐ 🚀 About Me I'm Michel Adelino, a Full-Stack AI Engineer and Automation Expert with 6+ years of experience building AI-powered products, SaaS platforms, mobile applications, and business automation systems. I specialize in custom AI agents, GPT-powered chatbots, MVP development, AI voice solutions, and scalable web & mobile applications that help businesses automate workflows, improve customer engagement, and accelerate growth. Whether you need a fast MVP, a production-ready SaaS platform, a mobile app, or AI automation integrated into your business, I can take your idea from concept to launch. 💡 What I Offer • MVP Development for Startups & Founders Turn your idea into a working MVP quickly. I build scalable MVPs for AI SaaS products, marketplaces, mobile apps, and internal business tools using modern technologies like Next.js, React, React Native, Flutter, FastAPI, and Node.js. • AI Agent & Multi-Agent Systems Build intelligent AI agents using LangChain, LangGraph, CrewAI, OpenAI, Anthropic, and Gemini. From simple assistants to complex multi-agent workflows that automate real business processes. • AI Voice Agents & Calling Automation Develop AI-powered voice assistants for inbound and outbound calls, lead qualification, appointment booking, and customer support using VAPI, ElevenLabs, Twilio, SynthFlow, and Retell AI. • GPT Chatbots & Custom AI Solutions Create AI chatbots, knowledge bases, customer support systems, and RAG-powered applications tailored to your business and data. • Full-Stack SaaS Development Design and build multi-tenant SaaS platforms with authentication, subscriptions, user dashboards, APIs, payment systems, and cloud deployment. • Mobile App Development (iOS & Android) Build high-performance cross-platform mobile apps using React Native and Flutter. ✔ iOS & Android Apps ✔ SaaS Companion Apps ✔ Marketplace Apps ✔ Push Notifications ✔ Payment Integration ✔ AI-Powered Mobile Features ✔ Real-Time Functionality • AI-Powered Websites & Web Applications Build modern web applications enhanced with AI features such as chat assistants, recommendation engines, intelligent search, and workflow automation. • Workflow Automation & CRM Integration Automate repetitive processes using Zapier, Make com, n8n, Airtable, HubSpot, and custom API integrations to save time and increase efficiency. 🛠 Tech Stack ✔Frontend & Mobile Next.js, React, React Native, Flutter, TypeScript, JavaScript, Redux, Zustand, Tailwind CSS, Material UI, ShadCN UI, Bootstrap, HTML5, CSS3, Expo ✔Backend Node.js, NestJS, Express.js, FastAPI, Django, Laravel, Symfony, PHP, Python, REST API, GraphQL, WebSockets, Socket IO ✔AI & LLM Development OpenAI GPT-4, Claude, Gemini, Llama, DeepSeek, LangChain, LangGraph, CrewAI, AutoGen, OpenAI Assistants API, Function Calling, AI Agents, Multi-Agent Systems, Prompt Engineering, RAG, Vector Search, Semantic Search, AI Chatbots ✔Vector Databases & AI Infrastructure Pinecone, Qdrant, Weaviate, ChromaDB, FAISS, pgvector ✔Databases PostgreSQL, MySQL, MongoDB, Redis, Supabase, Firebase Firestore, Airtable ✔Cloud & DevOps AWS, Google Cloud Platform (GCP), Microsoft Azure, DigitalOcean, Docker, Kubernetes, Vercel, Cloudflare, Nginx, Linux, CI/CD, GitHub Actions ✔Authentication & Security JWT, OAuth, Google Login, Firebase Auth, Clerk, Auth0, NextAuth.js ✔Automation & Integrations Make com, Zapier, n8n, HubSpot, Pipedrive, Salesforce, Airtable, Webhooks, API Integrations ✔Voice AI & Communication VAPI, ElevenLabs, SynthFlow, Retell AI, Twilio, Deepgram, AssemblyAI ✔Payments & Subscriptions Stripe, PayPal, Paddle, RevenueCat ✔Real-Time & Messaging Socket IO, Pusher, Firebase Realtime Database, WebRTC ✔CMS & E-Commerce WordPress, WooCommerce, Shopify, Headless CMS ✔Tools & Project Management Git, GitHub, GitLab, Bitbucket, Jira, Trello, ClickUp, Notion ✔Deployment AWS EC2, AWS ECS, AWS Lambda, Railway, Render, Fly io, Vercel, Netlify, DigitalOcean 🎯 Why Clients Hire Me ✅ Startup & MVP Specialist ✅ Full-Stack Web & Mobile Development ✅ AI Agents & Automation Expertise ✅ Fast Communication ✅ Scalable Architecture ✅ Clean & Maintainable Code ✅ End-to-End Product Delivery ✅ Business-Focused Solutions 🤝 Let's Build Something Great Whether you're launching an MVP, building an AI SaaS platform, creating a mobile application, deploying AI agents, or automating business workflows, I'd be happy to help. Let's turn your idea into a scalable product.
Michel A. has worked .
Vepa D.
$75/hr
98% Job Success
$1M+ earned
Available now
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Create Leverage! That is what I do. I build fast-performing, secure, reliable software to help you scale with confidence. Since 2010, I have helped countless smart entrepreneurs harness the power of software to 10X their business. If you are looking for the perfect symbiotic relationship, you are in the right place. No micromanagement and complete transparency, that is how I became the top 1% developer on the largest freelancing platform in the world. A true fire and forget, THE silver bullet you have been looking for. No hidden fees, and lifetime free bug support for every single line of code that I will deliver. I earned millions on this platform by making my clients insanely rich. Don't settle for mediocre. In the world of ruthless competition, the only way to stay ahead is to have a true apex developer lead your IT efforts. As you read this bio, your competition has been busy building a rival product—no time to waste. Message me now, and let's print money together!
Vepa D. has worked .
$9.99/hr
100% Job Success
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🚀 Senior Full Stack Developer & SaaS Architect | AI-Powered Applications | Next.js, React, Node.js, Python, AWS I build scalable SaaS platforms, AI-powered applications, and cloud-native systems that don't break when your business starts growing. Most developers build features. I build products that are ready for customers, investors, and scale. ━━━━━━━━━━━━━━━━━━━━━━━━ 💬 CLIENT FEEDBACK ━━━━━━━━━━━━━━━━━━━━━━━━ ⭐⭐⭐⭐⭐ "Shahid delivered our SaaS platform with excellent code quality, clear communication, and on-time delivery. His technical expertise and architectural decisions helped us launch faster and scale with confidence." ⭐⭐⭐⭐⭐ "Outstanding Full Stack Developer with deep expertise in React, Next.js, Node.js, and cloud infrastructure. He quickly understood our requirements and delivered beyond expectations." Over the last 7+ years, I've helped startups, SaaS founders, and businesses launch production-ready web applications, AI platforms, automation systems, and enterprise-grade software using modern technologies including Next.js, React, Node.js, Python, AWS, and AI technologies. Whether you're building an MVP, scaling an existing SaaS platform, or integrating AI into your business, I focus on performance, security, maintainability, and long-term scalability from day one. ━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 WHAT I BUILD ━━━━━━━━━━━━━━━━━━━━━━━━ ▸ SaaS MVP Development Production-ready SaaS applications using Next.js, React, Node.js, Supabase, PostgreSQL, and Stripe. ▸ AI-Powered Applications OpenAI, LangChain, RAG systems, AI chatbots, AI agents, document intelligence, workflow automation, and AI-powered business applications. ▸ Full Stack Web Applications Modern web applications using React, Next.js, Node.js, NestJS, FastAPI, Laravel, and scalable backend architectures. ▸ API Development & Integrations REST APIs, GraphQL APIs, third-party integrations, payment gateways, webhook systems, and enterprise integrations. ▸ Cloud Architecture & DevOps AWS, Azure, Google Cloud, Docker, CI/CD pipelines, microservices, monitoring, and scalable deployments. ▸ Enterprise SaaS Systems Multi-tenant SaaS platforms, role-based access control, dashboards, admin panels, analytics, and enterprise workflows. ▸ Automation Systems n8n workflows, Zapier automations, AI workflows, CRM integrations, and business process automation. ━━━━━━━━━━━━━━━━━━━━━━━━ ⚙️ TECH STACK ━━━━━━━━━━━━━━━━━━━━━━━━ Frontend: React.js • Next.js • TypeScript • JavaScript • Angular • Vue.js • Tailwind CSS Backend: Node.js • NestJS • Express.js • FastAPI • Django • Laravel • .NET Databases: PostgreSQL • MongoDB • MySQL • Redis • Supabase • Firebase AI & Automation: OpenAI • GPT-4 • LangChain • RAG • AI Agents • n8n • Zapier Cloud & DevOps: AWS • Azure • Google Cloud • Docker • CI/CD • Microservices Mobile: React Native • Flutter ━━━━━━━━━━━━━━━━━━━━━━━━ 💼 WHY CLIENTS WORK WITH ME ━━━━━━━━━━━━━━━━━━━━━━━━ ✔ Architecture-first approach ✔ Scalable and maintainable codebase ✔ Clean communication and transparent delivery ✔ Security and performance built in from day one ✔ Long-term technical partnership mindset ✔ Business-focused solutions instead of just code ━━━━━━━━━━━━━━━━━━━━━━━━ 🚀 HOW I WORK ━━━━━━━━━━━━━━━━━━━━━━━━ 1. Understand business goals and product vision. 2. Design scalable architecture before development starts. 3. Build production-ready systems with clean and maintainable code. 4. Deploy, monitor, optimize, and scale. My goal isn't simply to deliver software. My goal is to help you build a product that grows without forcing expensive rewrites later. ━━━━━━━━━━━━━━━━━━━━━━━━ ✉️ LET'S BUILD SOMETHING GREAT ━━━━━━━━━━━━━━━━━━━━━━━━ If you're building a SaaS platform, AI application, automation system, enterprise platform, or startup MVP, send me a message and let's discuss how we can build it the right way from the beginning. Response time: Usually within 1-2 hours. Keywords: #FullStackDeveloper #SaaSDeveloper #AIDeveloper #NextJS #ReactJS #NodeJS #PythonDeveloper #LaravelDeveloper #NestJS #FastAPI #AWS #Azure #GoogleCloud #DevOps #Docker #Microservices #MERNStack #MEANStack #WebDeveloper#FullStackDeveloper #SaaSDeveloper #AIDeveloper #NextJS #ReactJS #NodeJS #PythonDeveloper #LaravelDeveloper #NestJS #FastAPI #AWS #Azure #GoogleCloud #DevOps #Docker #Microservices #MERNStack #MEANStack #WebDeveloper Full Stack Developer, SaaS Developer, AI Developer, Next.js Developer, React Developer, Node.js Developer, Python Developer, AWS Developer, Cloud Developer, Backend Developer, API Developer, NestJS Developer, FastAPI Developer, Laravel Developer, OpenAI Developer, LangChain Developer, Automation Developer, DevOps Engineer, MVP Developer, Enterprise SaaS Developer.Full Stack Developer, SaaS Developer, AI Developer, Next.js Developer, React Developer, Node.js Developer, Python Developer, AWS Developer, Cloud Developer, Backend Developer, API Developer, NestJS Developer, FastAPI Developer, Laravel Developer, OpenAI Developer
Shahid I. has worked .
Talwinder S.
$30/hr
100% Job Success
Available now
Offers consultations
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Most businesses spend weeks searching for a developer who can actually deliver a working AI product not just talk about models and frameworks. I build production-ready AI applications, autonomous agents, and full-stack web apps that solve real business problems, not demos that fall apart after handoff. With 6+ years in software development and deep specialization in AI engineering, I've built everything from RAG-based knowledge systems and multi-agent automation pipelines to AI SaaS platforms and voice AI agents. If it involves LLMs, Python, or full-stack development — I've built it and shipped it. WHAT I DELIVER (Services) : ► AI CHATBOTS & CONVERSATIONAL AI Custom chatbots using OpenAI GPT-4, ChatGPT API, LLaMA 3, and Mistral. Integrated into websites, apps, and messaging platforms with context memory and multi-turn conversations. ► AI AGENT DEVELOPMENT : Autonomous multi-agent systems with LangChain, CrewAI, AutoGen, and LlamaIndex. Agents that research, process data, make decisions, and execute workflows without constant human oversight. ► RAG PIPELINES & KNOWLEDGE SYSTEMS : Retrieval-Augmented Generation with vector databases (Pinecone, Weaviate, FAISS, ChromaDB). Enterprise search, document Q&A, and AI knowledge bases with source attribution. ► LLM FINE-TUNING & ALIGNMENT : Custom model training using LoRA, QLoRA, PEFT. RLHF and DPO alignment for domain-specific accuracy and brand-safe outputs. ► VOICE AI AGENTS : Speech-to-text and text-to-speech integration. Voice assistants for customer support, operations, and telephony with real-time response handling. ► AI SAAS PRODUCT DEVELOPMENT : End-to-end product build: system architecture, API design, React/Node frontend, Python backend, deployment. From MVP to scalable production platform. ► CUSTOM GPT & OPENAI INTEGRATION : GPT-4, GPT-4o, and Assistant API integration into existing platforms. Function calling, structured outputs, and enterprise-grade prompt engineering. ► FULL-STACK WEB APPLICATIONS : React.js, Node.js, Next.js, MongoDB, REST/GraphQL APIs. Real-time apps, dashboards, marketplaces, and automation platforms. ► PYTHON BACKEND & AUTOMATION : FastAPI, Flask, Django APIs. Web scraping, data mining, n8n workflows, Telegram bots, trading bots, and Binance API automation. ► AI DEPLOYMENT & INFRASTRUCTURE : Production deployment on AWS, RunPod, DigitalOcean. Docker containerization, CI/CD pipelines, GPU optimization, and scaling strategy. PROVEN RESULTS (Why Clients Trust Me) : ✓ $100,000+ earned on Upwork across 233 successful contracts ✓ 100% Job Success Score — every client satisfied, every project delivered ✓ 7,305+ hours of verified development work ✓ Top Rated status — consistently high feedback and on-time delivery ✓ Repeat clients who return for additional AI features and scaling My clients are startup founders, product teams, and businesses who need AI built properly with clean architecture, real documentation, and zero handholding after delivery. I don't disappear after launch. I make sure it works in production the way it worked in development. HOW I WORK : 1. REQUIREMENTS — I listen first. Understanding your business goal is more important than the tech stack. 2. ARCHITECTURE — I design the system before writing code. Scalable, documented, and production-ready. 3. BUILD — Weekly updates, transparent progress, demo-ready milestones. 4. DELIVERY — Deployed, tested, monitored, with 30 days post-launch support. READY TO BUILD? If you need an AI agent, a RAG system, a chatbot, a full-stack AI app, or a Python automation tool — send me your requirements. I respond within hours with exactly how I'd build it and how long it will take. Let's turn your AI idea into a working product. Thanks, — Talwinder | Full-Stack Developer, MERN Stack, RAG, React/Node, AI-Powered SaaS, AI-Powered Healthcare SaaS Platform | SaaS Builder, SaaS Developer, Full-Stack Developer, MERN Stack, Next.js Developer, React.js Developer, Node.js Developer, AI Model Integration, AI Developer, OpenAI, GPT, Chatbot Integration, Task Automation, API Integration, Stripe Integration, Payment Gateway, MongoDB, PostgreSQL, Tailwind CSS, Shadcn/UI, MVP Developer, Startup, Web Application Developer | Full Stack Developer, SaaS Developer, Marketplace Developer, Custom Web Application Developer, Startup MVP Developer, Product Engineer, Platform Developer, CRM Developer, Dashboard Developer, Workflow Automation, Business Systems, API Development, Multi-Tenant SaaS, Scalable Web Applications
Talwinder S. has worked .
Weballures Technologies
Associated with
Weballures Technologies
Monika M.
$50/hr
100% Job Success
Available now
Offers consultations
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Next.js & Node.js Architect: I transform your AI SaaS and MVP concept into a scalable, investor-ready product. Top Rated Plus developer with 8+ years of experience building production-grade web applications for funded startups, SaaS companies, and growing businesses across healthtech, fintech, edtech, and e-commerce. I don't just write code. I engineer systems that scale. Whether you need an AI-powered SaaS platform, a ChatGPT-integrated dashboard, or a full-stack MVP ready for launch in weeks, I deliver clean architecture, rapid execution, and clear communication from start to finish. What I Build For Clients Like You: 🚀 AI SaaS Platforms & MVPs End-to-end development of AI-powered web applications. OpenAI / ChatGPT API integration, custom AI chatbots, AI automation workflows (n8n), and complete SaaS MVPs built with Next.js and Node.js. I help founders go from idea to live product 40% faster. 💻 Full-Stack Web Applications Scalable, high-performance apps using Next.js, React.js, Node.js, Express.js, TypeScript, and Vue.js. Real-time features, complex dashboards, booking systems, ERP, and CRM solutions engineered for performance. 📱 Mobile Applications Cross-platform iOS and Android apps built with React Native and Flutter. Real-time messaging, live streaming, and seamless API integration with your web backend. 🔌 API Development & Integrations REST and GraphQL APIs. Stripe subscriptions and payment systems. PayPal, Google Maps, SMS gateways, shipping APIs, and third-party service integration built securely and documented clearly. ☁️ Cloud & Deployment AWS, Azure, Docker, CI/CD pipelines. I build for scale from day one so your infrastructure grows with your user base—not against it. Tech Stack I Work With Daily: Next.js React.js Node.js Express.js TypeScript JavaScript Laravel Vue.js React Native Flutter MongoDB PostgreSQL MySQL Supabase Firebase Python Redux Tailwind CSS Material UI GraphQL REST APIs Docker AWS Azure GitHub OpenAI API ChatGPT n8n Recent Results Delivered: 🔹 Built an AI-powered SaaS MVP for a healthtech startup, reducing time-to-market by 40% and securing their seed funding round. 🔹 Developed a real-time booking platform with Stripe payments, processing 10,000+ monthly transactions with 99.9% uptime. 🔹 Engineered a fintech dashboard using React and Node.js that improved data processing speed by 3x, handling millions of records in real time. What Clients Say: ⭐ "Great developer with strong expertise in React, Node.js, API integrations, and SaaS application development. Delivered high-quality work, communicated effectively, and handled Stripe and AI-related integrations smoothly. Highly recommended and would hire again." ⭐ "Excellent MERN Stack developer. Delivered a high-quality responsive web app with smooth API integration and strong performance. Communication was clear, work was delivered on time, and all requirements were met perfectly. I highly recommend her for full-stack web development." Frequently Asked Questions: Can you build my AI-powered SaaS product? Yes. This is my core specialty. I build complete AI SaaS platforms with ChatGPT/OpenAI integration, custom chatbots, and intelligent automation workflows. I've helped multiple startups launch AI products from zero to production. Do you develop MVPs for startups? Absolutely. I work with founders to define scope, prioritize features, and launch a fully functional MVP in weeks—not months. The architecture is always built to scale when you're ready. Can you integrate Stripe and payment systems? Yes. I've implemented Stripe subscriptions, one-time payments, invoicing, and recurring billing for multiple platforms handling thousands of transactions monthly. Do you provide ongoing support after launch? Yes. I offer maintenance, bug fixes, feature enhancements, and long-term technical partnership. Most of my clients stay with me for years. Are you available for long-term projects? Yes. I'm actively seeking long-term collaborations and am open to contract-to-hire arrangements. I focus on three things: clean code, clear communication, and solutions that create real business value. If you're looking for a Next.js Developer, Node.js Developer, AI SaaS Specialist, or MERN Stack Architect, send me an invitation and let's discuss your project this week. — Monika Next.js & Node.js Developer | AI SaaS & MVP Specialist | Top Rated Plus Keywords : Monika full stack developer on Upwork, MERN Stack, React Native Developer, Laravel, AI Solutions, Bubble, Mobile App Development, E-commerce Development, SaaS Applications, Web Development, Custom Websites, RESTful API, MongoDB, MySQL, PostgreSQL, Firebase, - Best Full stack developer on upwork - Hire best react developer upwork 2026 - Best Developer for AI Saas Platform & Mvp Development - Monika expert full stack developer on Upwork - Hire MERN Full Stack Developer Upwork - Monika Senior Backend Engineer (Node.js / TypeScript / AI) Upwork
Monika M. has worked .
Weballures Technologies
Associated with
Weballures Technologies
$25/hr
78% Job Success
$10K+ earned
Available now
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⬜️ Full Stack Developer React Node helping SaaS products grow and scale ⬜️ React developer available for LONG-TERM partnerships ⬜️ Built 10+ SaaS products from idea to stable production ⬜️ No quick patches ❗️Focused on serious projects with long-term value I am a Full Stack Developer React Node who develop full stack applications using modern technologies like React, Next.js, Node.js, and Python. My focus is full stack developer react node on building stable, scalable SaaS platforms, business tools, and customer-facing senior web developer applications that work reliably under real-world usage. Who Am I? SaaS Developer ReactJS: ✔️ Full SaaS JavaScript products from idea to production ✔️ User authentication, dashboards, subscriptions, and admin panels ✔️ Multi-tenant systems and scalable backend architecture ✔️ Stripe and payment integrations Web Apps Full Stack Developer React Node: ✔️ Custom web platforms using React and Next.js ✔️ Complex senior python developer dashboards, internal tools, and client portals ✔️ Real-time features using WebSockets ✔️ API integrations with react native developer third-party services Front End React Developer: ✔️ Convert Figma and design files into clean, production-ready frontend code ✔️ Optimize front end developer react performance, loading speed, and overall user experience ✔️ Develop dashboards, SaaS interfaces, admin panels, and client-facing applications How I work? I focus on writing clean, maintainable code and ux designer backend systems that scale properly. My goal is mobile app developer to build applications that remain stable as user load grows and new features are added. I communicate clearly, meet deadlines react developer, and treat every project as a long-term product, not just a quick implementation. As a full stack developer react node, front end developer, and frontend react developer, I build: ✔️ SaaS dashboards ✔️ admin panels ✔️ complex interfaces ✔️ real-time data systems Using modern frameworks like react, react js, and javascript, combined with scalable backend architecture. Tech Stack Frontend ◾️ React ◾️ Next.js ◾️ React Native ◾️ TypeScript ◾️ Redux ◾️ React Query ◾️ Tailwind ◾️ MUI ◾️ MERN stack Backend ◾️ Node.js ◾️ NestJS ◾️ Express ◾️ Python ◾️ FastAPI ◾️ REST API ◾️ GraphQL ◾️ WebSockets Databases ◾️ PostgreSQL ◾️ MongoDB ◾️ Supabase ◾️ Firebase ◾️ Redis ◾️ MySQL Infrastructure ◾️ Docker ◾️ AWS ◾️ Vercel ◾️ GitHub Actions ◾️ Railway Focus I am a full stack developer react node ( software developer ) who focuses on modern, production-ready stacks and don’t take projects who need wordpress developer, project manager, saas marketing to built with Swift, Angular, Ruby on Rails, WordPress, Laravel vue, PHP, Vue, or Webflow, Seo keyword research, gps, flutter, link building, copywriter, website traffic, etsy marketing Click Invite and share a brief description of your project if you are looking for a full stack developer react node, mern stack developer, react developer, or saas developer to help build a serious long-term product.
Maksym S. has worked .
Viso
Associated with
Viso
$100K+
earned