I’m Bablu Kumar, a senior full-stack web developer with 7+ years of experience building scalable platforms, complex systems, and marketplace products that handle real users and real payments. I work with founders who need more than basic development — they need systems that are reliable, extensible, and built for real-world use. My core expertise includes React, Node.js, Ruby on Rails, Laravel, Stripe with advanced payment flows and webhooks, AWS S3, and AI integrations using ChatGPT and OpenAI APIs. I focus on clean architecture, strong coding standards, and maintainable systems so products can grow without constant rewrites or technical debt. I build MVPs that launch fast but are engineered for long-term scale. I’m also a verified Sharetribe expert, bringing deep marketplace experience when required — from payments and workflows to edge cases and platform limitations.

GoHighLevel White Label & SaaS Mode expert delivering CRM setups, funnels, automation workflows, snapshots, email marketing, and appointment systems that convert leads into booked calls fast. I am a GoHighLevel White Label & SaaS Mode Expert with more than 430 completed projects and over 100 GoHighLevel-specific builds. I help agencies, coaches, business owners, and local service brands implement CRM systems, high-converting funnels, automation workflows, and email marketing that turns traffic into revenue. ⭐ What I Can Build for You ⇒ Full GoHighLevel CRM Setup (pipelines, calendars, workflows, triggers) ⇒ White Label SaaS Mode setup (branding, pricing tiers, Stripe billing, permissions) ⇒ Snapshot creation & cloning for agencies ⇒ Lead Generation Funnels (opt-in, VSL, webinar, booking, multi-step funnels) ⇒ AI Voice Agent & Chat Agent setup with accurate intent training ⇒ IVR, call routing & advanced call flow systems ⇒ Email Marketing: nurture sequences, re-engagement flows, and deliverability optimization ⇒ Appointment booking & no-show reduction automation ⇒ Migration from ActiveCampaign, ClickFunnels, WordPress, or other CRMs ⇒ Documentation, training videos & team onboarding ⭐ Why Clients Hire Me ✓ 430 plus completed Upwork jobs ✓ 100 plus GoHighLevel projects delivered ✓ 95 percent 5-star ratings with long, detailed reviews ✓ Strong communication, clean delivery & quick turnarounds ✓ Experienced with SaaS Mode, snapshots & white-label agency setups ✓ Long-term clients and high repeat-hire rate ✓ 3–14 day delivery for most projects ⭐ Industries I Serve Agencies, Real Estate, Coaches, Consultants, SaaS Founders, Cleaning Companies, Fitness, Health, Automotive, Roofing, Home Services, Education, E-commerce & Local Service Businesses. ⭐ Ready to Build Your System? Send me your goal, niche, and tools you use. I will reply with a fixed price, timeline, and complete execution plan today.

With over 𝟭𝟱 𝘆𝗲𝗮𝗿𝘀 of experience, I’m Muhammad Yaeen — a WordPress expert specializing in website development, plugin management, and high-converting landing pages. I create custom, responsive websites optimized for speed, SEO, and performance. From crafting tailored WordPress themes to managing complex plugins, I deliver scalable, results-driven solutions that elevate brands and drive measurable growth. 🏅 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐅𝐫𝐞𝐞𝐥𝐚𝐧𝐜𝐞𝐫 𝐰𝐢𝐭𝐡 𝐩𝐫𝐨𝐯𝐞𝐧 𝐬𝐮𝐜𝐜𝐞𝐬𝐬 🥇 𝟭𝟱+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 ✅ 𝟏𝟎𝟎% 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 ✅ 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞 (𝐉𝐒𝐒) 💎 𝐓𝐫𝐮𝐬𝐭𝐞𝐝 𝐛𝐲 𝟵𝟬𝟬+ 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬𝐞𝐬 ⭐ 𝐀𝐥𝐥 𝟓-𝐬𝐭𝐚𝐫 𝐫𝐞𝐯𝐢𝐞𝐰𝐬 🚀 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗢𝗳𝗳𝗲𝗿 🌐 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 – Themes, plugins, WooCommerce, Elementor, ACF, custom features 🧩 𝗖𝘂𝘀𝘁𝗼𝗺 𝗽𝗹𝘂𝗴𝗶𝗻𝘀 – Payment gateways, bookings, unique functionality 🛒 𝗲𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 – Shopify, WooCommerce, Stripe, PayPal integrations 🎨 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 – HTML5, CSS3, JavaScript, jQuery, Tailwind, Bootstrap 🧱 𝗙𝗶𝗴𝗺𝗮 𝘁𝗼 𝗛𝗧𝗠𝗟 / 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 – Pixel-perfect, responsive sites 🧰 𝗦𝗲𝗿𝘃𝗲𝗿 𝗦𝗲𝘁𝘂𝗽 – WHM/cPanel, DNS, SSL, email configuration 🔐 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 & 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 – Speed tuning, server security 🛠️ 𝗧𝗼𝗼𝗹𝘀 & 𝗧𝗲𝗰𝗵 🗄️ MySQL, PostgreSQL, MongoDB 🌍 Domain/DNS setup, SSL, cPanel 🔌 APIs, webhooks, Zapier, Postman 🎨 Figma, Adobe XD 🤝 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲 📬 Open and clear communication at every stage 🧼 Well-structured, maintainable code with proper documentation 📱 Designs that put the user first and work seamlessly on all devices 🛠️ Long-term commitment to support, updates, and improvements ⏱️ Projects delivered on schedule with honest updates along the way 🔗 𝗟𝗲𝘁’𝘀 𝗚𝗲𝘁 𝗦𝘁𝗮𝗿𝘁𝗲𝗱 If you’re looking for someone reliable who can turn your ideas into solid, high-performing digital solutions — I’m here to help. Let’s connect and make it happen! Best regards, 𝗠𝘂𝗵𝗮𝗺𝗺𝗮𝗱 𝗬𝗮𝘀𝗲𝗲𝗻

𝑯𝒊, 𝑰'𝒎 𝑹𝒂𝒌𝒆𝒔𝒉 — 𝑬𝒙𝒑𝒆𝒓𝒕 𝑭𝒖𝒍𝒍-𝑺𝒕𝒂𝒄𝒌 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒆𝒓 💼 8+ 𝐘𝐞𝐚𝐫𝐬 | 🚀 139+ 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 | ⭐ 𝟏𝟎𝟎% 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 I’m a Full Stack & AI-Powered Web Application Developer with 8+ years of experience building scalable web solutions for startups and small businesses. My work blends cutting-edge AI integrations with robust front-end and back-end development to deliver smart, responsive, and user-centric applications. AI Integration is my specialty. Whether it's building an AI content generator, integrating OpenAI/Gemini into web apps, or enhancing UX with AI-based personalization, I bring innovative solutions to life. I also work with n8n, an open-source workflow automation platform, to design and deploy custom automations that connect various services and streamline business operations. From automating lead flows and marketing tasks to integrating CRMs, webhooks, and APIs, I build efficient, scalable workflows that save time and reduce manual work. List of my expertise with various tech stacks: AI-Powered Web App (React + OpenAI / Gemini) SaaS MVP Development Website with AI Blog Writer & Scheduler E-commerce Store with AI Product Recommender Convert Figma to Next.js with Tailwind Landing Page with AI Lead Scoring React + Firebase Job Board / Marketplace Responsive design Third-party integrations via API Payment gateway integration Social media logins Geo-location implementation My proficiency comprises: Custom web application development CMS: WordPress, Joomla, Drupal PHP Frameworks: Laravel, Symfony, CakePHP, Zend, CodeIgniter, Yii ROR Framework, Python, Django APIs: RESTful, SOAP-based, OAuth-based APIs, Shipping APIs – UPS, USPS, FedEx, Amazon APIs (MTurk, SimpleDB), and Google APIs E-Commerce Website Development – Magento, BigCommerce, Shopify, OpenCart, osCommerce, PrestaShop Interactive Front-End Web Development: HTML, XHTML, XML, CURL, CSS, Twitter Bootstrap JavaScript MVC libraries and frameworks including: Bubble io, Backbone js, Ember, Knockout js, Ext JS, AngularJS, Node js & MEAN JS I also specialize in building all types of calculators like simple input-output tools to complex financial, tax, health, and logic-based calculators. Whether it's in Excel, Google Sheets, or web-based (JavaScript, React, etc.), I create fast, user-friendly, and error-proof tools tailored to your exact needs. Custom Excel & Google Sheets Calculators Financial & Tax Calculators (IRMAA, QCD, RMD, ROI, etc.) Health & Fitness Calculators (BMI, BMR, etc.) Web-based Calculators with live inputs and dynamic logic Error validation, styling, and mobile responsiveness AI Developer | AI Engineer | Artificial Intelligence Solutions | Machine Learning Developer | Deep Learning Developer | AI Model Integration | Natural Language Processing (NLP) | Computer Vision Expert | AI Chatbot Developer | N8N Developer | PyTorch Developer | OpenAI Integration | AI-Powered Web Apps | AI Automation Services | Custom AI Models | AI Workflow Optimization | AI in E-commerce | AI-Based Recommendations | AI-Powered Analytics | AI SaaS Solutions | AI-Powered CRMs | AI Prompt Engineering | AI Content Generation | AI Personalization Systems | Full Stack Developer | Full Stack Engineer | MERN Stack Developer | MEVN Stack Developer | Frontend & Backend Expert | RESTful API Developer | GraphQL Developer | End-to-End Web Solutions | JavaScript Full Stack | TypeScript Developer | Web App Development | Full Stack App Architect | SaaS Product Developer | MVC Architecture Expert | API Integration Services | Full Stack Consulting | Full Stack Performance Optimization | Full Stack Debugging | CI/CD Implementation | GitHub Actions & Deployment |

I help SaaS businesses build AI-powered automation systems, scalable backend architectures, and complex API integrations using Laravel, Node.js, React, OpenAI, HubSpot, QuickBooks, and modern cloud technologies. Specialized in: • OpenAI / AI integrations • Workflow automation • CRM & ERP integrations • HubSpot & QuickBooks automation • Vector search / AI assistants • REST APIs & webhooks • Queue systems & background jobs • Laravel + Node.js backend architecture • React frontend integration • Third-party integrations and middleware I’ve worked on integrations involving: • HubSpot • NetSuite • Celigo • QuickBooks • Stripe • Twilio • CRMs & SaaS platforms I focus on building production-ready systems with: • scalable architecture, • clean API design, • async processing, • automation reliability, • performance optimization, • and long-term maintainability. Tech stack: Laravel, PHP, Node.js, React, MongoDB, MySQL, PostgreSQL, Redis, OpenAI APIs, webhooks, queue systems, automation workflows, Zapier, and cloud deployments. If you're building: • AI-powered SaaS features, • automation workflows, • CRM integrations, • semantic/vector search systems, • AI assistants, • or custom backend platforms I can help architect and implement the solution end-to-end.

I'd rather show you what I can do than tell you. Imagine this: you wake up Monday, your app is on the App Store, the design is pixel-perfect, your Firebase bill is a fraction of what your last developer warned you about, and your users are already messaging you about the AI features. That's not a pitch that's a Tuesday for the founders I work with. Send me your Figma file. I'll send you back a personalised Loom video showing exactly how I'd architect your app, where I'd save you money on Firebase, and how I'd add AI features your competitors haven't thought of. That's my promise and it costs you nothing to find out. I'm Joseph a Senior FlutterFlow Developer who turns Figma designs into production-ready iOS and Android apps with optimized Firebase backends and built-in AI. No agency markup. No 3-month timelines. WHAT FOUNDERS GET WHEN THEY HIRE ME: 🔹 Dakota Fintech MVP shipped in 24 days. 20-screen Figma design straight to live App Store launch. Zero scope creep. Hit his Series A demo deadline with a week to spare. 🔹 Tobias Firebase bill cut by 70%. Restructured his Firestore architecture and watched his monthly bill drop from "panic" to "rounding error." 🔹 Gabriel Broken build rescued in 3 weeks. Took over a half-finished FlutterFlow project his last developer abandoned and shipped to production. 🔹 AI-powered SaaS Built ChatGPT + Claude into a FlutterFlow app with custom prompts and streaming responses. Replaced a 4-person support team with an AI agent handling 70%+ of tickets. WHERE I SHINE: 🔹 AI mobile apps (chatbots, AI agents, voice AI, personalisation) 🔹 Fintech (payments, subscriptions, ledger logic that balances) 🔹 Health & fitness (tracking, wearables, custom calculations) 🔹 SaaS MVPs & B2B mobile apps 🔹 Two-sided marketplaces (booking, payments, ratings) 🔹 FlutterFlow rescue work when someone else broke it, I fix it MY TECH: Mobile: FlutterFlow • Flutter • Dart • Figma Backend: Firebase (Firestore, Auth, Cloud Functions) • Supabase • Stripe • RevenueCat • REST APIs AI: ChatGPT • Claude • Gemini • Whisper • DALL-E • ElevenLabs • Pinecone • RAG • FlutterFlow AI Agent Builder Launch: App Store • Google Play • TestFlight • Push Notifications • In-App Purchases FREQUENTLY ASKED QUESTIONS: ❓ How long does a FlutterFlow MVP take? Most Figma-to-App-Store builds ship in 24–35 days. Complexity of your custom logic and integrations sets the exact number. ❓ Can FlutterFlow really build production-ready apps? Yes with custom Flutter code where it matters. Dakota's fintech app runs live on both stores. I don't ship "prototypes with limits." ❓ Will my Firebase bill actually stay low? Yes, if it's structured right from day one. Most bill spikes come from bad Firestore modeling nested subcollections, unbatched reads, missing indexes. I fix those before you ever see them. ❓ Can you integrate Stripe subscriptions and one-time payments? Yes Stripe Checkout, Payment Element, Subscriptions, Connect, and webhook-driven event handling. Plus RevenueCat for in-app purchases on iOS/Android. ❓ Can you integrate custom REST APIs and third-party SDKs? Yes. Authentication, pagination, retry logic, webhook signing, and error handling I write custom Flutter code when FlutterFlow's built-in API blocks aren't enough. ❓ Can you add ChatGPT, Claude, or Gemini to my app? Yes including streaming responses, prompt engineering, RAG pipelines, and the FlutterFlow AI Agent Builder. I can also integrate voice AI (ElevenLabs, Whisper) and image generation (DALL-E). ❓ Do you handle App Store and Google Play submission? End-to-end TestFlight, store listings, screenshots guidance, review responses, and rejection appeals if they happen. ❓ Will I own the FlutterFlow project and code? 100%. The project lives in your FlutterFlow account. You own everything design, logic, and full code export rights. Never locked in. ❓ What if my current FlutterFlow project is already broken? Rescue work is 30% of what I do. Send me the project and I'll audit it free most builds can be salvaged faster than starting over. ❓ How do we start? Send me a message with your Figma file, current project, or idea. I'll come back within 60 minutes with a specific plan not a sales pitch. HOW IT FEELS TO WORK WITH ME: Loom walkthroughs at every milestone. Documentation and handoff playbook so you're never held hostage. Honest architecture pushback instead of quiet shortcuts. 60-minute response time during work hours. YOUR FREE 30-MINUTE ARCHITECTURE REVIEW: Send me your Figma file, existing FlutterFlow project, or your idea. Zero obligation. If we're a fit, we move fast. 🔧 EXPERTISE: FlutterFlow | Flutter | Dart | Figma to FlutterFlow | Firebase | Firestore | Stripe | RevenueCat | Supabase | REST API | iOS | Android | AI Integration | ChatGPT | Claude API | OpenAI API | Gemini

Your AI-built app stuck? I build AI SaaS products from scratch and rescue the ones that stalled after Lovable, Bolt, or Cursor. Top Rated Plus, 100% Job Success, zero abandoned projects across 50+ contracts. Most AI SaaS developers either build new or fix old, rarely both well. I do full security and code audits (exposed API keys, missing Supabase RLS, runaway OpenAI spend) with a strict no-rewrite policy, and I ship new AI SaaS products end to end using the same stack: Next.js, Supabase, OpenAI, and Stripe billing. If your AI-built app is stuck: I deliver a full code and security audit in 5 days with a severity-ranked written report, then fix scope in 2-3 weeks at a fixed price agreed up front, plus 2 weeks of post-launch support. If you're starting an AI SaaS from day one: I build the full stack myself, from OpenAI integration and RAG pipelines to Supabase auth/RLS, Stripe billing, and multi-tenant architecture. Recent builds include Excello (AI voice coaching, LiveKit + ElevenLabs), AuditMake (multi-tenant AI audit pipeline), and DailyJobs (AI-powered job matching). Top Rated Plus and Expert-Vetted with a 4.99 rating across 50+ Upwork contracts and 2,300+ hours billed. IBM AI Developer Professional Certificate, IBM Generative AI with Python, and Meta Back-End Developer Certificate. Zero abandoned projects to date. Send me one line about what you're building or where it's stuck, and I'll reply with next steps within a day.

I help businesses build, fix, and improve web applications with reliable frontend, backend, payment, and testing workflows. My strongest experience is in SaaS-style applications using React, TypeScript, Node.js, AWS, .NET, Azure, Stripe, and Playwright. I have worked on real product features including checkout flows, Stripe payment handling, wallet/balance deduction, inventory reservation, order management, admin dashboards, Progressive Web App features, and end-to-end testing. I can help you with: - React / TypeScript frontend development - Node.js backend APIs and serverless functions - Stripe checkout, webhooks, and payment flow fixes - Inventory, cart, wallet, and order-management logic - Playwright end-to-end test setup - Bug fixing and refactoring existing codebases - .NET / Azure function development - Business websites and landing pages I am especially useful when your app already exists but has bugs, messy flows, payment issues, missing tests, or frontend/backend integration problems. I prefer clear communication, written requirements, and step-by-step delivery. If you need a reliable developer who can understand product logic and improve the system carefully, I can help.

— WooCommerce, WordPress & AI-Driven Development Specialist — 🎓 Recent AI Certifications 🏅ChatGPT Prompt Engineering for Developers (certificate Link at bottom) 🏅Generative AI for Software Development (certificate Link at bottom) 🏅Design, Develop, and Deploy Multi-Agent Systems (certificate Link at bottom) 🏆 100+ Successful Projects 🏅 5 Stars Rating 🏆 100% Satisfied clients 🏆 100% Recommendation Ratio 🏆 100% Job Success Rate 🏆 Top-Rated at Upwork You're looking at a web and mobile development professional with 8 years experienced, I have spent countless hours trying to improve and perfect my skills. Why you should hire me: ** I am dedicated to solving problems. ** I work smart. ** I am responsible. ** I am always open-minded and a team player. ** I am always learning new things. My ideal project would be ether PHP Wordpress, Woo-Commerce, Themes Plugins Customization, Custom PHP web application, feature or site based on CakePHP, although I am always open to new challenges. My skills include but are not limited to: * PHP, MYSQL, JavaScript, jQuery * WordPress | themes, Plugins * Cakephp, Laravel, CI * Git, Apache Solr I can work with any RESTful API and have worked with API's such as Campaign Monitor, IBM, Facebook, Pay - Pal, Stripe, Amazon, Google API's, Twitter, Boats.com, dozens of other simple and complex API integrations. I pride myself on going the extra mile to ensure that your project runs smoothly and efficiently. Please check out my reviews, I aim only for 5-star ratings from every client.

🥇 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 | 𝟏𝟓+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 | 𝟓-𝐒𝐭𝐚𝐫 𝐑𝐚𝐭𝐢𝐧𝐠 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐂𝐨𝐦𝐩𝐥𝐞𝐭𝐢𝐨𝐧 𝐑𝐚𝐭𝐞 🥇, 𝐀𝐛𝐨𝐮𝐭 𝐌𝐞: I am a Full Stack Developer & AI/ML Engineer with 15+ years of hands-on experience delivering high-quality, scalable, and secure web & mobile applications. I specialize in MERN Stack, Next.js, Python/Django, Chrome Extensions, and AI/ML-powered solutions. My focus is not just writing code—but building production-ready systems that solve real business problems and scale with growth. I work closely with clients to understand requirements, propose the right architecture, and deliver clean, maintainable, and future-proof solutions. ✅ 𝐂𝐨𝐫𝐞 𝐂𝐨𝐦𝐩𝐞𝐭𝐞𝐧𝐜𝐢𝐞𝐬 𝐌𝐄𝐑𝐍 & 𝐍𝐞𝐱𝐭.𝐣𝐬: MongoDB, Express.js, React.js, Node.js, Next.js 𝐏𝐲𝐭𝐡𝐨𝐧 & 𝐃𝐣𝐚𝐧𝐠𝐨: Scalable backend & API development 𝐀𝐈 / 𝐌𝐋 & 𝐂𝐥𝐨𝐮𝐝: GCP, Vertex AI, Agent Building, LangChain, Hugging Face, OpenAI 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: React Native, Expo, React Native Paper 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MySQL, MongoDB, PostgreSQL, Oracle PL/SQL 𝐂𝐡𝐫𝐨𝐦𝐞 𝐄𝐱𝐭𝐞𝐧𝐬𝐢𝐨𝐧𝐬: Custom browser extensions & automation tools 📈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐚𝐛𝐥𝐞𝐬 - Full-Stack Web Applications with API & database integration - AI/ML Solutions: Intelligent agents, chatbots, recommendation systems - Cloud AI Implementations: Vertex AI model deployment & automation - Mobile Apps: Cross-platform apps using React Native & Expo - Chrome Extensions: Productivity, automation & data-driven extensions - Database Architecture: Secure, optimized, and scalable designs - UI/UX Development: Responsive, modern, and intuitive interfaces - API Development & Integration: REST, SOAP & custom APIs 🛠️ 𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 ✔️ Top Rated Freelancer with proven delivery history ✔️ AI-Driven Expertise using the latest tools & frameworks ✔️ Reliable & Communicative – clear updates and fast responses ✔️ 100% Job Completion & 5-Star Feedback ✔️ Long-Term Mindset – I aim to become your trusted tech partner ✨ 𝐀𝐝𝐝𝐢𝐭𝐢𝐨𝐧𝐚𝐥 𝐏𝐞𝐫𝐤𝐬 - Free Post-Delivery Support for code-related issues - Quick Communication & availability across time zones - Strict Security & Data Privacy guaranteed 🚀 Let’s build something powerful together. If you’re looking for a reliable developer who understands both technology and business, I’d be happy to discuss your project and help bring your ideas to life. Warm Regards, Pankaj Sharma