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Talha H.
$25/hr
96% Job Success
Available now
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I build AI agents, AI integrations, chatbots, automation systems, and AI SaaS platforms that run in production: LangChain, LangGraph, CrewAI, n8n workflows, RAG pipelines, and AI voice agents with Vapi and Retell AI. 𝗕𝗲𝗳𝗼𝗿𝗲 𝘄𝗿𝗶𝘁𝗶𝗻𝗴 𝗮𝗻𝘆 𝗰𝗼𝗱𝗲, 𝗜 𝗱𝗲𝘀𝗶𝗴𝗻 𝗮 𝗰𝗼𝗺𝗽𝗹𝗲𝘁𝗲 𝗔𝗜 𝗿𝗼𝗮𝗱𝗺𝗮𝗽 𝗳𝗼𝗿 𝘆𝗼𝘂𝗿 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀, 𝘀𝗼 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄 𝗲𝘅𝗮𝗰𝘁𝗹𝘆 𝘄𝗵𝗮𝘁 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱, 𝘄𝗵𝗮𝘁 𝗶𝘁 𝗰𝗼𝘀𝘁𝘀, 𝗮𝗻𝗱 𝘄𝗵𝗮𝘁 𝘁𝗼 𝘀𝗸𝗶𝗽. Most wasted AI budget comes from building the wrong thing first. The businesses I work with usually have the same problem: manual processes, disconnected tools, and leads or support tickets that sit untouched for hours. I replace that with systems that respond in seconds and run 24/7 without adding headcount. ➤ 𝗪𝗵𝗮𝘁 𝗜 𝗕𝘂𝗶𝗹𝗱 ✔ AI Agents and Agentic Workflows: autonomous and tool-using agents, multi-agent systems, function calling, MCP integrations (LangChain, LangGraph, CrewAI) ✔ AI Integration: connect OpenAI, Claude, and Gemini to your existing tools, CRM, and internal systems so AI works inside the workflows you already run ✔ AI Automation: n8n, Make, and Zapier workflows to automate lead qualification, CRM updates, email follow-up, reporting, and business processes ✔ AI Chatbot Development: context-aware support and sales chatbots for web, WhatsApp, and Slack, connected to your knowledge base, CRM, and calendar ✔ AI Voice Agents: inbound and outbound calling, AI receptionists, appointment booking, lead qualification (Vapi, Retell AI, ElevenLabs, Twilio, Deepgram) ✔ RAG Systems: knowledge bases grounded in your real documents with semantic search and vector databases (Pinecone, pgvector, Qdrant, ChromaDB) ✔ AI SaaS Platforms: full-stack development with multi-tenant architecture, auth, Stripe billing, dashboards, and deployment included ✔ Backend and API Integration: Python, FastAPI, Node.js, PostgreSQL, Supabase, REST APIs, webhooks ➤ 𝗦𝗵𝗶𝗽𝗽𝗲𝗱 𝗪𝗼𝗿𝗸 ✔ NFC-linked commerce platform for music artists: artist storefronts, product discovery, sales and tap analytics dashboards ✔ Event ticketing platform: event creation, checkout, and payment flows with fintech integrations ✔ Production data warehouse on Amazon Redshift for a Berlin climate-fintech company, delivered across structured milestones ✔ AI recruiting platform: trigger-based candidate sourcing with LLM scoring and automated write-back to Google Sheets ✔ Multiple production automation pipelines connecting CRMs, payment systems, and marketing tools Every system ships documented, deployed, and maintainable by your team. No black boxes, no vendor lock-in. ➤ 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 ✔ AI and LLMs: OpenAI GPT-4o, Claude, Gemini, LangChain, LangGraph, CrewAI, LlamaIndex, MCP, prompt engineering, generative AI ✔ Voice: Vapi, Retell AI, ElevenLabs, Twilio, Deepgram, Whisper ✔ Automation: n8n, Make, Zapier ✔ Data: PostgreSQL, Supabase, Pinecone, pgvector, Redis ✔ Backend: Python, FastAPI, Node.js, REST APIs, webhooks, microservices ✔ Frontend and Cloud: React, Next.js, AWS, GCP, Docker, Vercel ✔ Integrations: HubSpot, GoHighLevel, Salesforce, Stripe, Google Calendar, WhatsApp Business API ➤ 𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸 Scoping call to understand your workflow and bottlenecks AI roadmap and architecture before any code is written Fast working prototype, then production hardening Documentation and handoff so your team owns the system Tell me the process that costs your team the most time. I will tell you exactly how I would automate it and what it would cost. ➤ 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 ai agent development, ai agents, ai automation, ai integration, artificial intelligence, chatbot development, ai chatbot, chatgpt integration, generative ai, automation, workflow automation, n8n, make automation, zapier, agentic ai, ai voice agent, voice ai, conversational ai, prompt engineering, llm integration, rag, retrieval augmented generation, langchain, langgraph, crewai, multi-agent systems, mcp, openai api, gpt-4o, claude, gemini, vapi, retell ai, elevenlabs, twilio, deepgram, vector database, pinecone, python, fastapi, node.js, react, api integration, backend development, saas development, full stack development, business process automation, customer support automation, lead qualification, appointment booking
Talha H. has worked .
Abu Z.
$20/hr
100% Job Success
Available now
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I build systems that scale: without turning into a mess six months later. Most projects don’t fail because of bad ideas. They fail because the execution falls apart: slow APIs, fragile architecture, apps that work fine… until real users show up. I’ve spent years building and fixing full-stack systems across mobile apps, SaaS platforms, and backend-heavy products. I don’t just ship features, I build foundations that hold up under growth. And lately, that also means integrating AI where it actually adds value, not just for the sake of it. What I do best: - Full Stack Development (Flutter, React, FastAPI, Node/NestJS) - Mobile Apps built for real-world usage, not just demos - SaaS Platforms (multi-tenant architecture, dashboards, admin systems) - Backend Systems that stay fast and predictable under load - AI Integrations (OpenAI, automation, intelligent workflows) - System Design & Performance Optimization How I approach projects: - I think beyond the task in front of me. - If something will break later, I’ll tell you now - If there’s a simpler way to solve it, we won’t overbuild - If your system needs to scale, it’s designed that way from day one - You won’t get code that “just works.” You’ll get code that holds up. When I’m a good fit: - You’re building a serious product, not a quick patch job - You need someone who can take ownership, not just follow instructions - You care about long-term stability as much as speed If you’re tired of re-explaining things to developers or fixing the same problems twice, we’ll get along just fine. Send me a message. let’s break down what you’re building and do it properly.
Abu Z. has worked .
$25/hr
88% Job Success
Available now
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Most "AI developers" can wire up a ChatGPT API call. Far fewer can ship something that survives real users, real edge cases, and a real production bill at the end of the month. That's the gap I fill. I've spent 12 years building software — the last 3 deep in LLMs, agents, and AI-native products — for founders and operators who need it to work, not just demo well. Hallucinating chatbot, RAG system retrieving garbage, agent stuck in a loop, or a greenfield AI idea that needs an architect before it needs a coder? That's my zone. What I actually do, day to day: → LLM features that hold up in production — RAG pipelines with retrieval that's actually relevant, agents with guardrails, prompt systems versioned like code, evals so you know when something regresses. → Full-stack apps around them — Next.js or React frontends, Node.js APIs, Postgres or Mongo, deployed on AWS/GCP with CI/CD that doesn't break on Friday afternoons. → Native and React Native mobile when the product lives on a phone — including the App Store / Play Store submission gauntlet so you don't have to deal with it. → Automation that quietly deletes manual work — n8n for cross-platform workflows, plus end-to-end GoHighLevel builds (funnels, snapshots, workflows, white-label/SaaS mode, custom integrations) for agencies and operators who want GHL doing more than it does out of the box. Where I'm especially useful: The overlap. Founders building AI products who also need a real frontend. Agencies on GHL who want to bolt on a custom GPT-powered assistant for their clients. Operators with an n8n + GHL + OpenAI stack that's held together with duct tape and needs an actual architect to make it scale. That intersection is rarer than it should be on Upwork, and it's where I do my best work. What working with me looks like: A scoping call before any estimate, because flat numbers on undefined work help nobody. Async updates you can read in 60 seconds. Code and systems your next person can pick up without a 3-hour onboarding. Honest pushback when I think your idea has a cheaper, faster, or better path — that's what you're hiring senior judgment for. What I won't do: Take a project I don't think I can knock out of the park. Ghost you for a week. Hand you a black box. Pad hours. If you're building something — or fixing something already shipped — send a note with what you're working on. First reply usually within a few hours, typically with a concrete question or two so we're not wasting each other's time.
Kamal H. has worked .
Dot Austere
Associated with
Dot Austere
Abdul A.
$14/hr
100% Job Success
Available now
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⭐Top Rated Plus 💰 $40,000+ Earned on Upwork 🏆 100% Job Success Score ⏱️ 8+ Years Full Stack Development ✅ Available All Time Zones I build full-stack web applications that scale from MVP to thousands of users without breaking. Most clients hire me after trying developers who could write code but couldn't ship stable, production-ready systems. I handle the complete stack React/Next.js frontends, Node.js and Python backends, databases, API integrations, AI features, and cloud deployment so you avoid handoffs, delays, and misalignment between teams. 🎯 I CAN HELP YOU IF ✓ You need a full-stack SaaS MVP built quickly and cleanly ✓ You want AI features integrated into your existing product ✓ Your React or Next.js app is slow and needs optimization ✓ You need backend APIs (Node.js, Python, Django) that scale ✓ You prefer clear communication and structured delivery ✓ You want someone who understands both product and engineering ✓ You're ready to start within a week ❌ WE'RE NOT A GOOD FIT IF - You want the cheapest developer option - You expect complex systems delivered overnight - You prefer rushing without proper planning - You work in gambling, adult content, or unethical niches - You don't value documentation or collaboration 💼 WHAT I BUILD - Full-Stack SaaS Applications Complete product development from frontend to deployment. React/Next.js interfaces, Node.js or Python backends, PostgreSQL/MongoDB databases, payment integration, and cloud hosting. - React & Next.js Frontends Admin dashboards, customer portals, data visualization, and responsive interfaces. Performance-optimized for 40-60% faster load times. - Backend APIs & Systems Node.js/Express, Python/Django, FastAPI, and Ruby on Rails. RESTful and GraphQL APIs with authentication, background workers, and database optimization. - AI-Powered Features OpenAI integration, automated workflows, intelligent data processing, and AI assistants built into production applications. - Third-Party Integrations Stripe/Paddle payments, Shopify, CRMs, email/SMS services, and custom API connections. 🏗️ REAL PRODUCTION SYSTEMS - AI Planning SaaS Platform Full-stack Next.js app where users generate business plans using OpenAI and download PDFs. Built with serverless functions, background processing, and cloud storage on Netlify. - E-commerce Analytics Dashboard React TypeScript frontend with Django backend processing thousands of Shopify orders daily. Background workers handle automated data sync and reporting for multiple business teams. - AI Headshot Subscription Platform Next.js SaaS with Supabase backend. Users subscribe and generate professional AI headshots. Integrated Astria AI API, Stripe/LemonSqueezy recurring payments, and credit management. - Trading Platform with Real-Time Data Full-stack application with live market data, Node.js API, PostgreSQL database, and interactive charting. Handles high-frequency updates and user portfolio tracking. Appointment Booking System React frontend with Ruby on Rails backend. Calendar integration, automated SMS/email reminders via Twilio/SendGrid, and payment processing. Reduced no-shows by 40%. 📊 CLIENT RESULTS - Delivered startup MVP that helped founders raise $1M in early investment - Built automation workflows reducing manual work by 70% and cutting operational costs by 40% - Developed real-time dashboards improving decision speed and generating 30% increase in operational ROI - Optimized SaaS backend architecture, boosting performance 2.5x and reducing downtime by 60% - Created internal tools saving teams 10+ hours weekly across departments 🛠️ TECHNICAL STACK Frontend React.js, Next.js, TypeScript, Angular, Redux, Tailwind CSS, Material UI Backend Node.js (Express, NestJS), Python (Django, FastAPI, Flask), Ruby on Rails, PHP (Laravel) Databases PostgreSQL, MongoDB, MySQL, Supabase, Firebase, Redis AI & Automation OpenAI API, LangChain, Pinecone, Vector Databases, Prompt Engineering, ML Model Integration APIs RESTful APIs, GraphQL, WebSockets, OAuth2, JWT Authentication Cloud & DevOps AWS (EC2, S3, Lambda, RDS), Vercel, Netlify, Heroku, Docker, GitHub Actions, CI/CD Integrations Stripe, Paddle, LemonSqueezy, PayPal, Shopify, Twilio, SendGrid, Google APIs Tools Git/GitHub, Agile Development, Jest/Pytest, API Documentation, Postman Frontend Developer, Full-Stack Developer, React Developer, Next.js Developer, Node.js Developer, Python Developer, Django Developer, SaaS Developer, MVP Developer, API Developer, TypeScript Developer, Backend Developer, AI Integration, Automation Developer, Cloud Developer, Database Design, REST API, GraphQL Developer, Web Application Developer, JavaScript Developer
Abdul A. has worked .
XenonDev
Associated with
XenonDev
$35/hr
100% Job Success
$100K+ earned
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Hi all, I’m a full-stack Node.js, React.js, Vue.js developer with over 6 years of experience in front-end and back-end development across various apps. I’m passionate about coding and strive to write clean, well-structured, and high-quality code, which I consider one of the most rewarding aspects of development. 🟩 🟩 🟩 🟩 My key fields of professional interest are FinTech and Real Estate. I am committed to developing sleek interfaces and business logic for projects related to Finance, Payment processing, and Property for rent and sale that require high-load systems with multiple user roles, complex platforms with back offices and dashboards, payments and purchases, exceptional antifraud and security, and third-party API integrations. Having completed a few projects as a Full-Stack Developer in these domains, I feel prepared to face new challenges and bring value to FinTech and Real Estate businesses worldwide. MY TECH STACK ✅ PROGRAMMING LANGUAGES: JavaScript, TypeScript, HTML5/CSS3, Python ✅ FRAMEWORKS & LIBRARIES: React.js, Redux, Redux Toolkit, Redux-Saga, Redux Reselect, Node.js, Nest.js, Express.js, Next.js, MUI, Vue3 (Composition API, Options API), VueX, Vuetify, Pinia ✅ DATABASES: PostgreSQL, MongoDB, Firebase ✅ PREPROCESSORS: Sass, SCSS ✅ TESTING TOOLS: Unit Testing, E2E Testing ✅ THIRD-PARTY APIs & LIBS: Instagram, Google API, Firebase ✅ OTHERS: REST API, AWS (EC2, Lambda, Cognito, EKS), Docker, Kubernetes, Linux, CI/CD, DigitalOcean, Heroku My superpowers are my passion for tech, clean code, and quality assurance and testing skills. Leveraging these strengths and my innovative mindset, I create state-of-the-art and flawless web applications or PWAs. Besides, it helps me quickly master new technologies, collaborate efficiently with distributed teams, and choose the best tech stack for every case. On top of that, my clients appreciate the hands-on and insightful perspective I bring to their projects, which was earned through my various track records working with large enterprises and small startups across the EU and US markets. PORTFOLIO ✅ A Real Estate Platform with 360° panorama views for the Australian market. Tech stack: React.js, Redux, Redux-Toolkit, Socket.io, Next.js, Three.js, Nx monorepo, Jest. ✅ A FinTech SaaS payment platform servicing businesses in various industries across 200 countries. Tech stack: JavaScript, Vue3 (Composition API), Pinia, TypeScript, Docker. ✅ A distinguished IT services provider, delivering exceptional solutions to small and medium-sized enterprises (SMEs) across continental Europe. I developed a PWA using React, Vue, Node, and SSR, SSG, and ISG applications utilizing Next.js. ✅ A prominent technology enterprise specializing in producing cutting-edge EV charging stations, and distributing them worldwide. Tech environment: React, Redux, Saga, Reselect, Node, Nest, Mongo, AWS. ✅ Websites development for a Real Estate company that provides apartment renovation services. Tech stack: JavaScript and PHP. 🟩 🟩 🟩 🟩 If you are looking for a reliable, creative and experienced tech professional, you have come to the right place—I'm excited about becoming your long-term partner! Let’s start working together! LANGUAGES I SPEAK Ukrainian is my native language. Besides, I have strong English skills. Most of my previous customers were English-speaking, so I am comfortable communicating in English. MY TEAM I am at ease as an individual contributor, but being a team player works best for me. So I joined Extrawest — an Upwork Top Rated Agency specializing in FinTech and Banking, Gambling and Betting, Food Ordering and Delivery, Logistics and Fleet Management, Medical Insurance and Healthcare, and special software for Electric Vehicles Charging Station networks since 2006. Having most of our resources based in Europe, we’ve been working with customers from over 20 countries (the US, Canada, Australia, most of the EU, South Africa, Singapore, Japan). Hence, it won’t be a problem for us to adjust to your timezone and working schedule. 🟩 🟩 🟩 🟩 My Agency Skills: Front-End (Frontend) Development, Back-End (Backend) Development, Full-Stack (Fullstack) Development, Mobile Development, EV Charging, Delivery, Food Ordering, FinTech, Banking, Loan, Mortgage, Wallet, Dashboard, Healthcare, Insurance, Betting, Gambling, Gaming, Flutter, Dart, JavaScript (JS), TypeScript (TS), Angular, Vue.js (VueJS, Vue), React.js (ReactJS, React), Node.js (NodeJS, Node), Java, Spring, SpringBoot, Hibernate, Python, Django, Scrapy, Quality Assurance (QA), Manual Testing, Automated Testing, UI/UX Design, Figma, Adobe Creative Cloud, DevOps, MySQL, PostgreSQL, MongoDB, Firebase, Docker, Amazon Web Services (AWS), Google Cloud Platform (GCP), Project Management (PM).
EXTRAWEST
Associated with
EXTRAWEST
$6M+
earned
Reza S.
$150/hr
100% Job Success
Offers consultations
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✅ Award winning AI Automation Expert with 10+ experience in business. ✅ Ex-Pfizer Global Business Services (Ireland) ✅ Microsoft Certified (Azure, Power Automate, Sharepoint, Teams, Fabric) ✅ Accounting and finance background (CPA / ACA) ✅ Native English Speaking professional that will hit deadlines with quality work ✅ Reviews speak for themselves 📞 Reach out now! ═══════════════════════════════════════════ Are you a founder or operator dealing with: - Disconnected tools that don't talk to each other - Manual processes eating your team's time in spreadsheets - No real visibility into what's happening in your business - A team stuck doing admin instead of high-value work - A product idea that's been sitting in a doc for months I've been there. My e-commerce business outgrew my processes — and building automation and internal tools saved it. Since then I've helped dozens of founders and operators replace chaos with systems that actually scale. ═══════════════════════════════════════════ ⚙️ INTERNAL BUSINESS TOOLS & WORKFLOW AUTOMATION Custom-built tools designed around the way your team actually works: • Operations dashboards, reporting portals, and internal admin consoles • n8n, Zapier, Make, and Power Automate workflow automation • AI agents for email handling, onboarding, invoicing, and document extraction • LLM-powered document processing — OCR, PDF extraction, data parsing • Airtable, Google Sheets, and Apps Script automation • CRM integrations (HubSpot, GoHighLevel, Salesforce, Pipedrive) • REST API integrations and webhook-driven process automation • VAPI voice agents for customer care, bookings, and intake 🛒 ECOMMERCE & SHOPIFY • Shopify automation, custom apps, and backend integrations • Inventory management and fulfilment workflows (Cin7, ecommerce ops) • Customer lifecycle and order workflow automation • Ecommerce analytics dashboards and revenue reporting 💰 FINANCE AUTOMATION (CPA BACKGROUND) • Xero and QuickBooks integrations and month-end reconciliation workflows • Invoice automation, PDF extraction, and document processing pipelines • AR/AP automation, billing pipelines, and compliance reporting • Financial dashboards (Looker Studio, Power BI) ═══════════════════════════════════════════ ⭐ CORE PRINCIPLES ✅ RESULTS DRIVEN — understand what moves the needle, not just what looks good 📈 SCALABILITY — build for where you're going, not just where you are 🔄 ADAPTABILITY — systems that handle change without breaking down 🤖 AUTOMATION FIRST — every manual step is a cost; we eliminate them ═══════════════════════════════════════════ 📋 HOW I WORK 1️⃣ Quick intro call to confirm we're a good fit 2️⃣ Process mapping session — understand workflows, pain points, and data flows 3️⃣ Scope document with clear deliverables and a fixed price (no hour-counting surprises) 4️⃣ Build → test → deploy, or hand off the blueprint if you want to build in-house 💡 This is an end-to-end service — if you're starting with a problem and not sure how to solve it, that's exactly where I come in. ═══════════════════════════════════════════ 👥 TEAM & BACKGROUND • 10+ years business experience across operations, marketing, and finance • CPA / ACA qualified — deep expertise in finance and accounting workflows • Small team of experienced developers for complex full-stack builds • Combined background in software and business means solutions that make technical and commercial sense 🎯 Send me your problem — I'll respond with a short Loom on the approach and a rough estimate. ═══════════════════════════════════════════ 🛠️ STACK n8n · Zapier · Make · Power Automate · React · Next.js · Python · TypeScript Supabase · Firebase · Neon · PostgreSQL · Stripe · Shopify · Airtable · Softr Xero · QuickBooks · Cin7 · HubSpot · VAPI · OpenAI · Claude · Replit · Lovable ═══════════════════════════════════════════ 📞 Reza Shahrokhi, ACA, CPA 🚀 Let's replace your manual processes with systems that scale.
Reza S. has worked .
Muhammad U.
$25/hr
100% Job Success
$100K+ earned
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With 10 years of experience (since 2016) and over $100k in earnings, you are in the top tier of freelancers. In the 2026 Upwork landscape, clients aren't just looking for "coders"—they are looking for Architects who can lead them through the AI revolution. Since Specialized Profiles are being retired, this "All-Work" overview is designed to be your Single Source of Truth. It uses semantic layering to ensure the LLM matches you for AI, Mobile, and Full-Stack roles simultaneously. AI Engineer & RAG Specialist | Full-Stack Architect (10+ Years) I bridge the gap between a decade of engineering excellence and the cutting edge of Generative AI. Since 2016, I have evolved from a Full-Stack developer into an AI Architect, specializing in production-ready Retrieval-Augmented Generation (RAG) and agentic workflows. With over $100,000+ earned and a 10-year track record, I provide the architectural stability that "AI-only" developers often lack. 🤖 AI & LLM Orchestration Systems: Building autonomous agents and RAG pipelines using LangChain, CrewAI, and LlamaIndex. Vector Search: Implementing semantic discovery with Pinecone, Weaviate, and Milvus. Efficiency: Custom n8n & Zapier automation to replace manual business processes with AI logic. Precision: Expert prompt engineering to eliminate hallucinations and ensure enterprise-grade outputs. 📱 Mobile & Hybrid App Development I maintain a deep specialty in high-performance, cross-platform mobile ecosystems: Tech Stack: Mastery of Ionic, Flutter, and React Native. Modern Web: Expert-level React, Angular, and Next.js integration. Cloud Sync: Connecting mobile frontends to complex AI backends and real-time APIs. 💻 Full-Stack Architecture Backend: Robust, scalable APIs built with Python (FastAPI/Flask), Node.js, and Laravel. Data & DevOps: PostgreSQL, MongoDB, Docker, and deployment across AWS and GCP. The "Architect" Edge: 10 years of experience ensuring your code is maintainable, secure, and built to scale. Why 60+ Clients Have Trusted Me: Reliability: A consistent Upwork presence since 2016 with a history of long-term partnerships. Global Impact: Proven success delivering AI CRMs and automation for US, UK, and Canadian startups. Strategic ROI: I don't just write code; I build systems that reduce costs and drive revenue. 💬 Ready to integrate AI into your ecosystem? Click "Invite" to discuss how we can turn your data into your greatest competitive advantage.
Rahul K.
$15/hr
100% Job Success
$10K+ earned
Available now
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Your last developer ghosted you. The one before that delivered spaghetti code you're still paying someone to fix. And now you're scrolling through 200 profiles that all say the same thing: "I am a passionate full stack developer with 6+ years of experience." Stop. Read this instead. Here's what I've done recently: → Built an AI-powered wellness platform — zero to 500+ users in 3 weeks. Sentiment analysis, recommendation engine, intelligent chatbot. My client called the quality "exceptional" and me "a true partner." → Shipped a multi-tenant AI marketplace with LangChain automation for a US-based startup. The CTO called me "a highly skilled AI Senior Engineer." → Built a healthcare staffing platform with nurse registration, compliance tracking, client dashboards, and Stripe payments. The founder said he "had no clue how complicated it would be" — I handled everything. What I build: → AI-powered SaaS from architecture to production → LLM systems — chatbots with memory, RAG pipelines, AI agents that actually work → Stripe-integrated platforms — subscriptions, Connect, marketplace payment splits → Multi-tenant apps with RBAC, admin panels, and clean APIs → MVPs that don't look or feel like MVPs I am NOT the right developer for you if: ⛔ You're shopping for the cheapest rate on the platform ⛔ You want 15 revisions because you don't have a clear vision ⛔ You think "MVP" means broken and ugly ⛔ You've already burned through 3 developers and blame all of them I AM the right developer if: ✅ You're a founder or product owner with a real vision. ✅ You want one person who owns your entire product — frontend, backend, AI, infra, deployment ✅ You're tired of explaining the same thing to developers who still don't get it ✅ You want to launch in weeks, not months — without accumulating technical debt that kills you later Here's how this works: you message me with what you're building, your timeline, and your budget. I'll review it. If I can deliver something great, I'll respond within 4 hours with a clear plan. If I can't, I'll tell you why and point you in the right direction. I don't pitch. I don't beg. I build. Tech Stack : React , Node.js , JavaScript , Next.js , API Integration , TypeScript , Web Development , PostgreSQL , Supabase , Web Application , Python , API AI Agent Development , Full-Stack Development , Amazon Web Services , Artificial Intelligence , HTML5 , SaaS , AI Development , AI App Development , MongoDB , REST API Tailwind CSS , HTML , Stripe , Vercel , PHP , API Development , SaaS Development , CSS , Mobile App Development , React Native , FastAPI , OpenAI API Web Design , AngularJS , MySQL , Machine Learning , NestJS , ExpressJS , AI Model Integration , Back-End Development , jQuery , iOS Development Front-End Development , Firebase , Claude , n8n , Automation , Android App Development , AI Bot , User Authentication , Database Architecture , Web Application Development LLM Prompt Engineering , Stripe API , Twilio , Responsive Design , Website Redesign , Java , Figma , MERN Stack , Google Cloud Platform , Laravel Database Design , Django , DevOps , Docker , Web Scraping , RESTful API , Full Stack Development , CSS 3 , Express.js , Database Development , Claude Code Swift , NodeJS Framework , Data Science , LangChain , RESTful Architecture , Redux , Websockets , CI/CD , Backend Development , AI Chatbot , OAuth , FinTech Kubernetes , Marketing Automation , Chatbot Development , Embedded System , WordPress , Social Media Marketing , Natural Language Processing , Railway , Testing Automated Deployment Pipeline , Google Maps API , Low-Code Development , Twilio API , SEO Setup & Configuration , Flutter , Payment Gateway Integration , Medusa iPad App Development , ElevenLabs , Zapier , Clerk , Fast API , AI-Generated Code , Ecommerce Website Development , Admin Dashboard , Vue.js , Finance AWS Lambda , Amazon EC2 , iOS SDK , English , Creative Writing , Backend , Front-End Development Framework , Software Development , GitHub Copilot , PSD to HTML React Bootstrap , OpenAI Codex , Report , Generative AI , Prompt Engineering , Cloud Engineering , Mui , Front end development , Zoom Api Integration , Api Optimization SQL , Database Management , Anthropic Claude API , Multi-tenant SaaS , Replit , AI agents , Ai saas , Lead Generation , Embedded C , CRM Development , Bootstrap Kotlin , Data Entry , Anthropic API , Full-Stack Web Development , Nest.js , Analytics , REST API Development , Microsoft Azure , AWS Application , Product Roadmap Marketing API Integration , Webhooks , Claude API , Ruby on Rails , Ruby , Code Audit , Environmental Setup , Restoration & Integration , Documentation , GraphQL GitLab , Ecommerce , Apps Script API , Google Apps Script , Google Analytics API , Minimum Viable Product , AI
Rahul K. has worked .
hyflint
Associated with
hyflint
$1K+
earned
Sergiu M.
$39.99/hr
100% Job Success
$60K+ earned
Available now
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I help companies ship production-ready AI and full-stack software faster: AI integrations, workflow automation, data pipelines, React/Node.js/Python apps, and cloud infrastructure built with senior engineering review. If you need more than a demo, I can help you turn an idea or internal process into a working product with clear scope, secure architecture, QA, monitoring, and a practical delivery plan. What I can build: - AI-powered web apps and internal tools - LLM integrations with OpenAI, Anthropic, or self-hosted models - AI-assisted software delivery workflows for product teams - Workflow automation and data pipelines - React / Next.js frontends and Node.js / Python backends - APIs, dashboards, admin panels, and SaaS features - Cloud deployment, CI/CD, monitoring, and production hardening Where I create the most value: - You have an AI idea but need a senior engineer to turn it into a real product - Your team wants to speed up development with AI-assisted SDLC without losing code quality - You need to integrate AI into an existing SaaS, CRM, marketplace, or internal platform - You need a fast MVP, pilot, or technical roadmap before committing to a larger build My delivery approach is pragmatic: - Quick discovery to define the business goal, users, risks, and success metrics - A clear technical plan with architecture, milestones, and trade-offs - AI-assisted implementation for speed, with senior human review for architecture, security, and critical logic - Automated QA, code review, and release practices so the result is maintainable - Production-minded deployment with monitoring, cloud infrastructure, and documentation Recent relevant work includes AI-assisted development process consulting, AI infrastructure planning, scalable React/API product development, and senior Salesforce/AppExchange code review advisory. I am a good fit if you want a reliable senior engineer who can move fast, communicate clearly, and deliver production-grade software instead of experiments. Send me a short brief about your product, workflow, or AI use case. I will reply with a technical plan, roadmap, and a practical MVP estimate.
Codemotion - AI-Assisted Software Delivery Agency
Associated with
Codemotion - AI-Assisted Software Delivery Agency
$10M+
earned
Hafiz M.
$25/hr
100% Job Success
$800K+ earned
Available now
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Need a MERN stack developer who can turn a SaaS idea into a production-ready product? I build React, Next.js, and Node.js apps with the billing, roles, and dashboards real users actually need. Most developers can build screens. The harder part is the system behind those screens: the data model, user permissions, payment flow, admin logic, API structure, third-party integrations, deployment setup, and the edge cases that only show up once real users start using the product. That's usually where I come in. I work best on SaaS platforms, internal tools, dashboards, CRMs, marketplaces, booking systems, real-time apps, and web/mobile products where the app is more than a basic frontend. Problems I regularly handle: - Turning a rough SaaS idea into a working MVP: frontend, backend, database, auth, payments, and deployment - Cleaning up React or Next.js apps that got hard to maintain - Fixing slow dashboards, broken APIs, unstable MongoDB queries, Stripe issues, auth bugs, and deployment failures - Building admin panels, user roles, subscription flows, notifications, messaging, reporting, and workflow automation - Integrating Stripe, Stripe Connect, Twilio, Google Maps, Firebase, OAuth, JWT, webhooks, and custom APIs - Adding AI-assisted features where they actually improve the product, not just because "AI" sounds good Recent product work: ▪️ WAWCD .com – SaaS CRM platform. Built with React, Next.js, Node.js, and MongoDB for 20K+ active users. Worked on CRM functionality, Stripe payments, Twilio messaging, and AI-assisted workflow automation. ▪️ Tournated .com – sports management platform. Built as a web platform and extended toward mobile, using Next.js, Node.js, MongoDB, and mobile-first product flows. ▪️ Prospeo .com – real estate SaaS platform. Built with React and Node.js for lead generation, data management, and AI-assisted property insights. Before writing code, I look at the product goal, user roles, database structure, API flow, payment logic, integrations, and deployment plan. Bad architecture early usually turns into expensive cleanup later, so I'd rather build it right from day one. I'm not the best fit for simple brochure sites or one-page landing pages. I'm a strong fit if you need a MERN stack developer who can take ownership of a real product, make technical calls, and ship features that hold up past the demo stage. Send me the app details, current stack, and what needs to be built or fixed. I'll come back with a practical technical plan.
Hafiz M. has worked .