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I’m a Web Developer and Technical Support Specialist focused on fixing and optimizing web applications in production. I help businesses resolve critical issues such as application errors, server-side failures, performance bottlenecks, and database problems. With 3+ years of experience in PHP, JavaScript, SQL, and systems administration, I specialize in quickly identifying root causes and delivering reliable, maintainable solutions. If your website is unstable, underperforming, or needs improvement, I can get it back on track fast.

Experienced Web Developer | Full Stack | CMS Specialist | UX Design Hello! I'm Carlos, a seasoned web developer with over 15 years of experience specializing in front-end and back-end development. I have a strong background in working with various Content Management Systems (CMS) such as WordPress, Prestashop, WooCommerce, Shopify, and more. Over the years, I have successfully completed numerous projects ranging from small business websites to large-scale e-commerce platforms. My expertise lies in creating visually appealing and highly functional websites that are tailored to meet the specific needs of clients. I am passionate about crafting seamless user experiences and optimizing website performance. Here are some highlights of my skills and experience: 1. CMS Expertise: I have extensive experience working with popular CMS platforms like WordPress, Prestashop, WooCommerce, and Shopify. I am well-versed in customizing themes, developing plugins, and implementing advanced customization techniques to deliver bespoke solutions for clients. 2. Full Stack Development: I possess a comprehensive understanding of both front-end and back-end development. From responsive web design using HTML5, CSS3, and JavaScript to server-side scripting with PHP and database management with MySQL, I can handle the entire development process. 3. E-commerce Solutions: I have a deep understanding of building and customizing online stores. I have successfully integrated payment gateways, implemented shopping cart functionalities, and optimized product management systems for seamless e-commerce experiences. 4. Cross-functional Collaboration: Throughout my career, I have collaborated closely with designers, content creators, and other stakeholders to ensure effective integration of design and functionality. I excel at bridging the gap between design aesthetics and technical implementation. 5. Problem-solving and Adaptability: I am skilled in troubleshooting and resolving complex technical issues. I have a keen eye for detail and a proactive approach to problem-solving. I am adaptable and able to quickly learn new technologies and frameworks to stay ahead in the ever-evolving web development landscape. I pride myself on delivering high-quality results, meeting tight deadlines, and providing excellent client satisfaction. I am a self-motivated professional who thrives in fast-paced environments and enjoys taking on new challenges. If you are looking for a reliable and experienced web developer who can bring your vision to life and create exceptional online experiences, I would love to discuss how I can contribute to your projects. Please feel free to reach out to me, and I will be glad to assist you. Thank you for considering my profile. I look forward to the opportunity of working with you on UpWork. Sincerely, Carlos P.

I help businesses build clean, fast, and high-converting websites using WordPress, Shopify, and Webflow. I’m a web designer and developer with more than 10 years of experience, working on business websites, eCommerce stores, and landing pages. I focus on creating websites that are simple, well structured, and easy to use. For me, it’s not only about design — it’s also about how the user moves on the page and how we can improve results. I have worked on many projects from design to development, and also improving existing websites. I’m comfortable starting from scratch or working on already built sites. I like to keep things clean and organized, so the final website is not heavy, loads fast, and is easy to manage from backend. If you need someone reliable who can handle both design and development, I’ll be happy to help.

100% Job Success | Top Rated | 5.0★ Average Senior Full-Stack AI Engineer building production-ready SaaS platforms, mobile apps, marketplaces, booking systems, and AI-powered workflows. I help startups and product teams turn ideas into real software: clean architecture, scalable databases, authentication, payments, dashboards, automations, AI integrations, and deployment. I do not only build screens. I take ownership from product logic to production. What I build: SaaS MVPs: onboarding, dashboards, roles, permissions, admin panels Mobile apps: React Native / Expo, auth, premium features, app-ready builds AI integrations: Claude, OpenAI, Gemini, image analysis, document processing, AI-assisted workflows Payments: Stripe Checkout, subscriptions, webhooks, customer portals Booking systems: calendars, availability logic, confirmations, admin workflows Marketplaces: listings, transactions, search, maps, custom business logic Automations: Make, n8n, Zapier, CRM/email/SMS workflows Product architecture: database design, API structure, edge cases, deployment, handoff Tech stack: Next.js, React, TypeScript, React Native, Expo, Node.js, Laravel/PHP, PostgreSQL, Supabase, Firebase, Stripe, OpenAI, Claude API, Gemini, Mapbox, Tailwind, Docker, Vercel, Railway, Render, GitHub. Recent work: AI fitness mobile app with React Native, auth, AI-generated plans, image analysis, and premium features Production SaaS platform with Next.js, Supabase, AI workflows, auth, database/RLS, and billing flows Booking/customer management platform with calendar logic, admin dashboard, customer profiles, notes, reminders, and payments Marketplace-style systems with listings, transactions, ownership logic, search, and admin workflows AI document automation: PDF extraction, rule-based validation, structured Excel/report output eSIM e-commerce flow with checkout, digital product delivery, order management, and admin operations How I work: Clear communication Fast MVP delivery without messy architecture Strong product judgment, not just code execution AI-assisted development with Claude Code, Cursor, ChatGPT, Copilot, and OpenAI tools Comfortable joining existing codebases, fixing complex issues, and shipping improvements quickly I am currently working on production SaaS systems with real users, including complex workflows, payments, permissions, automations, files, and AI-assisted product development. Native Spanish, professional English. Flexible with time zones. Looking for startups and teams that need someone who can own the build, think through the product, and ship reliable software.

AI-Powered Shopify Expert specializing in Shopify Development, Shopify Plus, UX/UI Design, AI Automation, and Conversion Rate Optimization (CRO). I help DTC brands, eCommerce businesses, startups, and growing companies build high-performing Shopify stores that increase conversions, automate operations, enhance customer experiences, and drive sustainable business growth. Hi, I am Pankaj With 10+ years of experience in eCommerce development, I have successfully partnered with startups, established brands, and fast-growing businesses globally, delivering Shopify solutions for clients across the USA, UK, Canada, Australia, Europe, the UAE (Dubai), and other international markets. Whether you’re launching a new Shopify store, upgrading to Shopify Plus, redesigning an existing store, migrating from another platform, or developing custom functionality, I deliver tailored solutions that align with your business goals and create long-term value. Over the past few years, I have integrated the latest AI technologies into Shopify ecosystems, helping businesses automate workflows, personalize customer experiences, streamline operations, and increase efficiency. 🛒 𝗦𝗵𝗼𝗽𝗶𝗳𝘆 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 & 𝗲𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 I build secure, scalable, and conversion-focused Shopify stores using modern development standards and Shopify best practices. ◾ Shopify Store & Shopify Plus Development ◾ Shopify Theme Development & Customization ◾ Shopify Liquid & Shopify 2.0 ◾ Custom Features & Shopify Functions ◾ Checkout Extensibility ◾ Shopify APIs, GraphQL & REST API ◾ Headless Shopify ◾ Store Migration & Replatforming ◾ B2B, Wholesale & Subscription Stores ◾ Ongoing Maintenance & Technical Support 🤖 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝗲𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 I use the latest AI technologies to simplify operations, improve customer experiences, and automate business workflows. ◾ OpenAI GPT, Claude, Gemini & Perplexity AI ◾ AI Agents & MCP Integration ◾ Shopify Magic & Shopify Sidekick ◾ AI Chatbots & Customer Support ◾ Shopify Flow, n8n, Make & Zapier ◾ AI Product Recommendations & Smart Search ◾ AI Content & Workflow Automation ◾ Custom AI Solutions for Shopify 🎨 𝗨𝗫/𝗨𝗜 & 𝗖𝗼𝗻𝘃𝗲𝗿𝘀𝗶𝗼𝗻 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 Every Shopify store is designed to improve user experience, increase engagement, and maximize conversions. ◾ UX Research & Customer Journey Mapping ◾ Modern UI & Mobile-First Design ◾ Landing, Product & Collection Pages ◾ Conversion Rate Optimization ◾ Cart & Checkout Optimization ◾ Upsell, Cross-Sell & AOV Optimization ◾ A/B Testing & Heatmap Analysis ◾ Figma to Shopify Development ⚡ 𝗦𝗵𝗼𝗽𝗶𝗳𝘆 𝗦𝗘𝗢, 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 & 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 I build Shopify stores that are optimized for search engines, speed, user experience, and long-term organic growth. ◾ Shopify SEO & Technical SEO ◾ SEO-Friendly Shopify Development ◾ Core Web Vitals Optimization ◾ Shopify Speed Optimization ◾ Google Lighthouse & GTmetrix ◾ Structured Data & Schema Markup ◾ Image, CSS & JavaScript Optimization ◾ Performance Monitoring & Technical Audits 🔗 𝗦𝗵𝗼𝗽𝗶𝗳𝘆 𝗔𝗽𝗽𝘀 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 I integrate trusted Shopify apps and business tools to create a seamless, scalable, and data-driven eCommerce ecosystem. ◾ Klaviyo, Omnisend & Mailchimp ◾ Recharge, Loox & Yotpo ◾ Gorgias Customer Support ◾ GA4, Google Tag Manager & Meta Pixel ◾ Stripe, PayPal & Shipping Platforms ◾ CRM, ERP & Custom API Integrations 🌍 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜’𝘃𝗲 𝗛𝗲𝗹𝗽𝗲𝗱 𝗚𝗿𝗼𝘄 ✨ Fashion & Apparel | Beauty & Cosmetics | Health & Wellness ✨ Home & Furniture |Jewelry & Luxury Brands | Food & Beverage ✨ Electronics & Consumer Goods | Pet Products | Sports & Outdoor ✨ Baby & Kids Brands | Supplements & Nutrition | Real Estate ✨ DTC Brands | B2B & Wholesale | Subscription Businesses ✨ Luxury Brands | Eco-Friendly Brands | High-Growth eCommerce Startups 🎯 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗖𝗮𝗻 𝗘𝘅𝗽𝗲𝗰𝘁 ◾ High-Performing & Conversion-Focused Shopify Solutions ◾ Better UX/UI & Customer Experience ◾ Fast, SEO-Friendly & Scalable Development ◾ AI Automation & Streamlined Workflows ◾ Secure Integrations & Reliable Performance ◾ Transparent Communication & On-Time Delivery ◾ Long-Term Support & A Trusted Technology Partner Great eCommerce is built through the right combination of technology, creativity, and strategy. I am passionate about helping businesses build Shopify stores that are fast, scalable, AI-powered, and designed to deliver exceptional customer experiences and measurable business growth. Whether it’s a new Shopify store, a complex custom solution, or long-term technical support, I bring the same commitment to quality, innovation, and results to every project. I am always available for chat, audio calls, and video meetings to discuss your ideas, answer your questions, and explore the best solution for your business. Thank you🤝 for taking the time to visit my profile.

I am a software engineer with extensive experience in mobile application development. I have worked with a variety of technologies including Flutter, React Native, Ionic, and React, and I am skilled in backend development, utilizing Firebase (including Firebase Authentication, Firestore, Cloud Messaging, Firebase Functions, and more), as well as Node.js with Express. I am also experienced in deploying mobile applications to both the Apple App Store and Google Play Console.