🏆 Shopify Developer (𝟐𝟎𝟎𝟎𝟎+ 𝐔𝐩𝐰𝐨𝐫𝐤 𝐇𝐨𝐮𝐫𝐬) specializing in 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐏𝐥𝐮𝐬, 𝐜𝐮𝐬𝐭𝐨𝐦 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐚𝐩𝐩𝐬, 𝐋𝐢𝐪𝐮𝐢𝐝 𝐜𝐨𝐝𝐢𝐧𝐠, delivering high-performance 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐰𝐞𝐛 𝐝𝐞𝐬𝐢𝐠𝐧, 𝐭𝐡𝐞𝐦𝐞 𝐜𝐮𝐬𝐭𝐨𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧, 𝐰𝐞𝐛𝐬𝐢𝐭𝐞 𝐫𝐞𝐝𝐞𝐬𝐢𝐠𝐧, 𝐬𝐭𝐨𝐫𝐞 𝐦𝐢𝐠𝐫𝐚𝐭𝐢𝐨𝐧, and 𝐬𝐩𝐞𝐞𝐝 𝐨𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧. I help businesses build conversion-focused Shopify stores, scalable Shopify solutions and provide complete A–Z Shopify store management for growing ecommerce brands. 📞 Call now for a 𝐟𝐫𝐞𝐞 𝟑𝟎-𝐦𝐢𝐧𝐮𝐭𝐞 𝐜𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧. ➤ Specialized in 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐒𝐭𝐨𝐫𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐂𝐮𝐬𝐭𝐨𝐦 𝐓𝐡𝐞𝐦𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐒𝐭𝐨𝐫𝐞 𝐌𝐢𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬, 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐒𝐭𝐨𝐫𝐞𝐟𝐫𝐨𝐧𝐭 𝐀𝐏𝐈, 𝐋𝐢𝐪𝐮𝐢𝐝 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠, 𝐚𝐧𝐝 𝐓𝐡𝐢𝐫𝐝-𝐏𝐚𝐫𝐭𝐲 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬. ➤ Extensive experience building 𝐜𝐮𝐬𝐭𝐨𝐦 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬, 𝐩𝐫𝐢𝐯𝐚𝐭𝐞/𝐩𝐮𝐛𝐥𝐢𝐜 𝐚𝐩𝐩𝐬, 𝐚𝐝𝐯𝐚𝐧𝐜𝐞𝐝 𝐬𝐭𝐨𝐫𝐞 𝐟𝐮𝐧𝐜𝐭𝐢𝐨𝐧𝐚𝐥𝐢𝐭𝐲, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐞𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 tailored to business needs. ➤ Successfully delivered 300+ Shopify and ecommerce projects across multiple industries, ranging from startup stores to high-volume online businesses. ➤ 𝟐𝟏𝟎𝟎𝟎+ 𝐡𝐨𝐮𝐫𝐬 completed on Upwork with a strong track record of long-term client relationships and successful project deliveries. ➤ Strong communication skills with fluent written and spoken English. With 10+ years of experience ➤𝐖𝐡𝐚𝐭 𝐈 𝐂𝐚𝐧 𝐃𝐨 𝐅𝐨𝐫 𝐘𝐨𝐮 • Build conversion-focused Shopify stores from scratch • Custom Shopify theme development (Liquid, HTML, CSS, JavaScript) • Develop custom Shopify apps & private apps • Shopify API integrations (CRM, ERP, payment gateways) • Shopify Plus development & advanced customization • Speed optimization & performance improvements • Store migration to Shopify (no data or SEO loss) • Fix complex issues, bugs, and improve store stability ➤ 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 • Shopify-focused specialist (not a generic developer) • Clean, scalable, and maintainable code • Strong understanding of ecommerce UX & conversion optimization • Experience handling real-world Shopify business challenges • Clear communication and reliable long-term support I have worked on hundreds of Shopify projects, from small customizations to full-scale store builds and custom app development. 📩 If you're looking for a reliable Shopify expert who understands both development and ecommerce growth, feel free to reach out. Related Searches Keywords: Hire best Shopify developer, hire ecommerce developer, Shopify expert Upwork, Shopify ecommerce expert, Shopify store developer, Shopify app developer, Shopify custom app developer, Shopify theme customization, Shopify API integration, Shopify CRM integration, Shopify migration expert, WooCommerce to Shopify migration, Shopify performance optimization, Ecommerce website development, Custom ecommerce development, Shopify checkout optimization, Shopify conversion optimization, Ecommerce scalability expert, Secure ecommerce development, Shopify Plus developer, Advanced Shopify development, Advanced WooCommerce development, Shopify, Shopify Expert, Shopify Developer, Shopify Store Development, Shopify Store Setup, Shopify Store Customization, Shopify Theme Customization, Shopify Custom App Development, Shopify API Integration, Shopify CRM Integration, Shopify Payment Gateway Integration, Shopify Performance Optimization, Shopify Speed Optimization, Shopify Conversion Rate Optimization, Shopify Migration Services, Shopify Plus Development, WooCommerce to Shopify Migration, Ecommerce Website Development, Custom Ecommerce Solutions, Scalable Ecommerce Architecture, Secure Ecommerce Development, High-Performance Ecommerce, Checkout Optimization, Cart Optimization, Payment Integration, Third-Party API Integration, CRM Integration, ERP Integration, Inventory Sync, Order Management Automation, Shopify Developer Upwork, Shopify Expert Upwork, Ecommerce Developer Upwork, Shopify Freelancer, Ecommerce Consultant, Long-Term Ecommerce Support, Ecommerce Optimization Expert Hastags: #ShopifyExpert #ShopifyDeveloper #EcommerceDevelopment #ShopifyApps #ShopifyCustomization #ShopifyMigration #APIIntegration #CRMIntegration #EcommerceOptimization #ShopifyStore #CustomEcommerce, #ShopifyExpert #ShopifyDeveloper #EcommerceDevelopment #ShopifyApps #ShopifyCustomization #ShopifyMigration #APIIntegration #CRMIntegration #EcommerceOptimization #ShopifyStore #CustomEcommerce #UpworkFreelancer #ShopifyUpwork Tag: -Best Freelance Shopify Specialists for Hire in 2026 -Best Freelance Shopify Developers for Hire August 2026 -Hire the Best Shopify Developers in India -Hire the Best Shopify Apps Developers in August 2026

🔸 Top Rated Plus Seller. 🔸 100% Job Success. 🔸 3000+ high-quality hours. I build AI-powered web apps and SaaS products, from idea to launch. I specialize in Full stack development & AI integration: OpenAI/LLM features, chatbots, and workflow automation. WHAT I DO: I help startups and founders turn ideas into scalable, AI-ready products and add intelligent features (chatbots, LLM workflows, automation) to existing web apps. I've delivered 170+ projects on Upwork with a 100% Job Success Score as a Top Rated Plus developer. CORE STACK: - Frontend: React, Next.js, Tailwind, TypeScript - Backend: Node.js, Express, Python, Django, REST & GraphQL APIs - Database & Cloud: PostgreSQL, MongoDB, Firebase, AWS, Vercel - AI Integration: OpenAI API, LLM apps, RAG, chatbots, AI workflow automation WHAT I BUILD: - Full stack web & mobile applications - AI-powered SaaS platforms and MVPs - Custom chatbots & AI assistants (OpenAI / ChatGPT integrations) - Workflow & API automation (Zapier, webhooks, internal tools) - Full-stack web apps with AI features baked in (search, recommendations, document processing) WHY CLIENTS WORK WITH ME: - Product-first: I understand the business behind the code - Fast, clear communication and reliable delivery - I can take a project from zero to launch, then scale it - Proven on large contracts (e.g. an 800-hour Senior Full-Stack engagement, 5.0 rating) INDUSTRIES FinTech, HealthTech, E-commerce, EdTech, and AI-powered SaaS tools. Let's build your next product, from concept to code, and from prototype to a launched, AI-ready app. Message me with a few lines about your project and I'll tell you exactly how I'd approach it.

𝗪𝗵𝘆 𝗵𝗶𝗿𝗲 𝗮 𝘁𝗲𝗮𝗺 𝘄𝗵𝗲𝗻 𝗼𝗻𝗲 𝗔𝗜 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝗰𝗮𝗻 𝘀𝗵𝗶𝗽 𝗶𝘁? I build AI applications end to end and put them in front of paying users — LLM layer, backend, billing, deployment. 30 apps shipped. Top Rated on Upwork. 𝗛𝗼𝘄 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿 ➤ AI Agents & Automation Agents that do real work — research, triage, data extraction, outreach, reporting — built on the Claude API, OpenAI API and LangChain, wired into the tools your business already uses. ➤ RAG & Knowledge Retrieval Retrieval-Augmented Generation over your own documents and data. Embeddings, pgvector, chunking strategy, retrieval evaluation — so answers cite your data instead of hallucinating. ➤ MCP Servers & Tool Integration I build Model Context Protocol servers that let Claude and other AI clients query your product directly. Your app becomes a tool your customers can talk to from inside their own AI workflow. ➤ AI Chatbots & Conversational Products Support bots, in-app assistants and customer-facing chat with streaming, memory, guardrails and human handoff. ➤ AI SaaS & MVP Development Full products from zero: Next.js, React, TypeScript, Supabase, PostgreSQL, Node.js. Auth, roles, Stripe subscriptions, admin panels, REST APIs and the error handling that keeps it running at 2am without you. ➤ Rescuing AI-Generated Builds Half-finished apps from Lovable, Cursor, Base44, Bolt and Replit that demo well and break under load. I read the codebase, tell you what's salvageable before you commit a budget, then ship it. ➤ Production Deployment & Maintenance Vercel, Azure, AWS, etctera Supabase, CI/CD, monitoring, cost control on LLM spend, and ongoing monthly maintenance once you're live. ✅ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗧𝗿𝘂𝘀𝘁 𝗧𝗵𝗶𝘀 𝗪𝗼𝗿𝗸 - Shipped, not prototyped. 30 apps live, including one with 150+ paying users. - Claude-first. I work in the Claude API and Claude Code daily and I train other developers on both. - You talk to me. No account managers, no handoff to a junior. - Deployed link after every milestone, not a status report at the end. - I scope in fixed-price milestones so you see working software early. 📂 𝗥𝗲𝗰𝗲𝗻𝘁 𝗔𝗜 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 - Wellness — AI relationship-analysis app, 150+ paying users. Claude API, RAG retrieval, Stripe subscriptions, live in production. - Real Estate — listing and vendor management SaaS, zero to client launch in under 3 weeks. Next.js, Supabase, PostgreSQL. - Fintech — stock screener with AI chat, REST API and an MCP server so Claude can query market data directly. - Sales — AI proposal generation SaaS, built and shipped solo. OpenAI API, Supabase, Stripe. - Creator Economy — AI coach with anonymous-first auth and a full design system on Supabase. - Education — online coding examination platform with automated grading. - Home Services — AI vision appraisal tool that prices items from photos. - Web3 — Telegram mini-app with on-chain rewards and referral logic. 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗼𝗻'𝘁 𝗗𝗼 WordPress or Shopify theme work. Design-from-scratch branding. No-code builds I can't get into the code of. Month-long discovery before anything ships. If that's what you need I'll say so on the first call instead of taking the contract. 𝗛𝗼𝘄 𝗪𝗲 𝗦𝘁𝗮𝗿𝘁 Send me your repo, your Lovable or Base44 link, or the idea in a doc. I'll send back a short recorded walkthrough, what's broken or what I'd build, and a fixed price for the first milestone. Free, before you commit to anything. I reply within the hour.

I am a Senior Full Stack Next.js & AI Developer with 11+ years of experience building scalable, high-performance, and production-ready web applications for startups, SaaS companies, and enterprise businesses. I specialize in modern JavaScript development using Next.js, React, Node.js, and TypeScript, focusing on building full stack applications that are fast, secure, and scalable. My expertise includes MERN stack development, SaaS architecture, REST APIs, and AI-powered web applications. My goal is to turn ideas into real, working digital products by combining strong system design, clean coding practices, and modern cloud technologies. ━━━━━━━━━━━━━━━━━━━━━━━ CORE EXPERTISE ━━━━━━━━━━━━━━━━━━━━━━━ I focus on building systems that are scalable, maintainable, and optimized for real-world business use. • Full Stack Next.js development (SSR, SSG, SEO optimized apps) • React.js frontend development with modern architecture • Node.js and Express.js backend systems • MERN stack application development • TypeScript-based scalable applications • REST API and GraphQL API development • SaaS application architecture and development • AI-powered application development using OpenAI ━━━━━━━━━━━━━━━━━━━━━━━ AI & OPENAI DEVELOPMENT ━━━━━━━━━━━━━━━━━━━━━━━ I build AI-driven applications using OpenAI and modern LLM technologies. I help businesses integrate AI into real products, not just prototypes. • ChatGPT integration into web applications • AI SaaS platforms and automation tools • AI chatbots and virtual assistants • Workflow automation using AI models • AI-powered dashboards and analytics systems ━━━━━━━━━━━━━━━━━━━━━━━ FULL STACK DEVELOPMENT ━━━━━━━━━━━━━━━━━━━━━━━ Frontend: • Next.js • React.js • TypeScript • Tailwind CSS • Material UI Backend: • Node.js • Express.js • Authentication (JWT, OAuth) • WebSockets for real-time apps • API development and integration Databases: • MongoDB • PostgreSQL • Firebase • Redis ━━━━━━━━━━━━━━━━━━━━━━━ SAAS & PRODUCT DEVELOPMENT ━━━━━━━━━━━━━━━━━━━━━━━ I build scalable SaaS platforms with multi-user architecture, subscription systems, and API-driven backend systems. • SaaS application development • Multi-tenant architecture design • Subscription and payment integration • Admin dashboards and analytics systems • Cloud-based deployment systems ━━━━━━━━━━━━━━━━━━━━━━━ CLOUD & DEPLOYMENT ━━━━━━━━━━━━━━━━━━━━━━━ • AWS (EC2, S3, Lambda) • Vercel deployment for Next.js • Docker containerization • CI/CD pipelines • Linux server management ━━━━━━━━━━━━━━━━━━━━━━━ PROJECT EXPERIENCE ━━━━━━━━━━━━━━━━━━━━━━━ I have delivered a wide range of applications including: • SaaS platforms • AI-powered applications • CRM and ERP systems • E-commerce applications • Healthcare systems • Real estate platforms • GPS tracking systems • Job portals • Analytics dashboards • Custom enterprise systems Each project is built with scalability, performance, and security as core principles. ━━━━━━━━━━━━━━━━━━━━━━━ WHY CLIENTS WORK WITH ME ━━━━━━━━━━━━━━━━━━━━━━━ • 9+ years of professional full stack experience • Strong expertise in Next.js, React, Node.js, and MERN stack • Deep understanding of SaaS and AI application architecture • Clean, scalable, and production-ready code • Strong communication and problem-solving ability • Focus on business outcomes and product success • Experience working with startups and enterprise teams ━━━━━━━━━━━━━━━━━━━━━━━ WHAT I CAN HELP YOU BUILD ━━━━━━━━━━━━━━━━━━━━━━━ • Full Stack Next.js applications • MERN stack web applications • SaaS platforms with scalable architecture • AI-powered applications using OpenAI • Custom dashboards and admin panels • REST API and backend systems • Real-time web applications • Cloud-based scalable platforms If you are looking for a Full Stack Next.js & AI Developer to build scalable SaaS applications and modern web platforms, feel free to connect. Thanks Mandeep

Top Rated Plus | Top 2% on Upwork | 100% Job Success Generative & Agentic AI | AI Automations | AI Agents | LLMs & RAG | Full-Stack Engineering | Custom Web & Software Development | Digital Transformation I build AI-powered SaaS platforms for founders and ship them to real users, not demo day. Over 8 years I've launched subscription products across EdTech, LegalTech, and consumer AI. My lane is specific: React/Next.js frontends, Supabase or FastAPI backends, Stripe billing, and AI features that actually work in production. PROBLEMS I SOLVE FOR FOUNDERS: • Multi-tenancy done right. Schema-per-tenant and database-per-tenant architectures where one client's data can never leak into another's, even through a software bug. Isolation enforced at the infrastructure level, tested on every code push. • Systems that survive the real world. I designed an offline-first POS platform where terminals keep taking orders and processing payments through a full internet outage, with bidirectional sync and defined conflict-resolution rules when connectivity returns. • Billing that doesn't leak revenue. Full Stripe subscription lifecycles: webhooks with idempotency, grace periods so paying users never get falsely downgraded at renewal, tier limits enforced server-side. I've reconciled Stripe + Apple StoreKit + Google Play Billing into a single subscription source of truth. • AI features built for production load. Async pipelines, rate limiting enforced atomically in the database, third-party AI API costs treated as a first-class constraint, and capacity planning before launch, not after the outage. • Scaling past the MVP. Connection pooling, composite indexes, backpressure control, background job recovery after crashes. The unglamorous engineering that decides whether your product holds at 10x users. RECENT LAUNCHES: → ACE MMI: AI medical interview prep SaaS (UK market). AI scoring, speech analytics, personalized feedback across 8 competencies. React 18 + TypeScript, Supabase, Stripe. 1,000+ users in production. → NiceTry: Consumer AI content-detection app live on iOS, Android, Chrome, and web, built for a 650K-subscriber creator audience. Supabase RLS, server-side API security, three billing rails reconciled into one subscription model. → ImmigLens: Compliance SaaS for Canadian immigration professionals. Automated evidence capture with Playwright, stateful scheduling with crash recovery, full async FastAPI backend, audit-grade security, complete Stripe billing lifecycle. → Rose POS: Multi-tenant restaurant POS platform. Offline-first architecture, per-tenant database isolation, real-time WebSocket control, 80% test coverage enforced in CI. **STACK I SHIP WITH:** • **Frontend:** React, Next.js (App Router), TypeScript, Tailwind CSS, shadcn/ui • **Backend:** Supabase (Postgres, Auth, RLS, Edge Functions), FastAPI, Node.js/NestJS • **AI & LLM Infra:** OpenAI API, Claude API, DeepSeek, LangChain, LlamaIndex, LiteLLM, vLLM • **Agentic Workflows & Multi-Agent:** CrewAI, AutoGen, LangGraph, tool-calling, async AI job queues (Celery/BullMQ) • **Search, RAG & Vector DBs:** Hybrid Search, reranking (Cohere), pgvector, Pinecone, Qdrant, ChromaDB • **AI Observability & Evals:** LangSmith, Helicone, Arize Phoenix, Promptfoo • **Billing:** Stripe (subscriptions, webhooks, Customer Portal), StoreKit 2, Google Play Billing • **Infra:** Vercel, AWS, Docker, GitHub Actions CI/CD, PostgreSQL performance tuning • **Tooling:** Claude Code, Cursor, Copilot daily. AI-assisted development without cutting corners. HOW I WORK WITH FOUNDERS: I'm not a ticket-taker. I'll challenge scope that doesn't serve the product, flag risks before they cost you money, and give you the realistic timeline: the one that holds, not the one you want to hear. You'll always know where your project stands. Whether you need an AI MVP built in weeks or an existing product re-architected to scale, message me with your goals and timeline. I respond within 1-2 hours.

🔥🔥🔥𝐅𝐫𝐞𝐞 𝐛𝐫𝐢𝐞𝐟 + 𝐚𝐮𝐝𝐢𝐭. 𝐈𝐟 𝐈 𝐭𝐡𝐢𝐧𝐤 𝐲𝐨𝐮𝐫 𝐢𝐝𝐞𝐚 𝐰𝐨𝐧'𝐭 𝐰𝐨𝐫𝐤, 𝐈'𝐥𝐥 𝐭𝐞𝐥𝐥 𝐲𝐨𝐮 𝐛𝐞𝐟𝐨𝐫𝐞 𝐲𝐨𝐮 𝐩𝐚𝐲 𝐦𝐞 - 𝐫𝐞𝐯𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐚𝐫𝐲 𝐜𝐨𝐧𝐜𝐞𝐩𝐭, 𝐈 𝐤𝐧𝐨𝐰🔥🔥🔥 Facts about me: 🏅527 products launched to production 🏆Built a React Native app that hit $118k MRR within 6 months of launch 🚀Top 1% React Native Developer on Upwork (Expert-Vetted) 🎯Shipped direct competitors to Nike Training Club, Find My (Apple) and Flo 💲$12.4M+ generated in client revenue ⭐ Systems supporting 100K+ MAU with 99.9% uptime 📈 30,000+ engineering hours logged across mobile + web 💳 Payment systems (Stripe, billing, marketplaces) processing $4.7M+ in transactions ✅Choose “𝐈𝐍𝐕𝐈𝐓𝐄” and drop me a secret 𝐏𝐑𝐎𝐌𝐎 “𝐔𝐏𝐖𝐎𝐑𝐊” to receive a 𝐅𝐑𝐄𝐄 𝐂𝐎𝐍𝐒𝐔𝐋𝐓𝐀𝐓𝐈𝐎𝐍! My Process 💪 Step 1 — Free brief + audit. Send your idea, prototype, Figma files, or existing codebase. As a React Native Developer and Full Stack Developer, I review architecture, scope, risk, and feasibility across mobile and web — no charge, no obligation. Most audits turn around within 24–48 hours. Step 2 — AI-powered prototype. Using Claude Code, Cursor, and OpenAI/Gemini integrations, I build a working, testable React Native or React Next.js prototype in 3–7 days, not months — so you validate real demand before committing to full development. This is the same AI-driven approach that's cut manual workflows by 30–50% and shaved 30–40% off time-to-market on past projects. Step 3 — Build. Full-stack build across React Native Mobile, React Native Expo, React Native Firebase, and web (React, Next.js, Node.js, Supabase/PostgreSQL, MongoDB), with weekly demos so you always know exactly what's shipped and what's next. Sprints run in 1–2 week cycles with clear, measurable milestones — the structure behind 100+ delivered projects and 60+ full production launches. Step 4 — Launch + scale. Deployment (AWS, Google Cloud, or Azure), CI/CD, monitoring, and post-launch optimization — the same DevOps React Native process that's taken apps from 0 to 100K+ MAU, 99.9% uptime, and 5M+ requests/month, while cutting infra overhead by 35% and backend costs by 70%. As a full-stack React Native Developer with 20,000+ hours of hands-on experience across mobile and web platforms, I specialize in React Native, Flutter, React.js, React Native Mobile, React Native Expo, React Native Firebase, React Native WebRTC to build mobile apps. This React Native Developer / React Native Engineer has deep expertise in front-end development using Vue.js, Angular, Next.js, and Laravel to deliver responsive. Over 10 years, this React Native Developer has partnered with 30+ teams across the world - shipping 100+ projects with measurable results. As a React Native Developer operating at the intersection of mobile and full-stack development, I bring 30,000+ hrs of engineering expertise in React Native mobile architecture, Expo, React Native Firebase, and React Native WebRTC. This React Native Developer has delivered mobile app development solutions across fitness, fintech, and neo-banking verticals, working alongside flutter developers, android engineers, and Kotlin specialists to ensure cross-platform quality on every build. In addition to mobile expertise, this React Native Developer extends deep capability into backend development — MERN, Node.js, Laravel, Python with Django, and Ruby on Rails — enabling end-to-end delivery across 1000+ projects without switching teams. As both a react developer and full stack developer, this React Native Developer has led architecture decisions for scalable REST APIs, Python REST API integrations, and database systems (MySQL, MongoDB) for clients across 30+ global teams. This React Native Developer has also designed and optimized 200+ WordPress and Shopify websites for SEO and conversion, working as both a Shopify and WordPress front-end developer. As a React Native Developer who understands the full product lifecycle, I integrate Auth0, Stripe payment systems, and blockchain modules while leveraging Webflow and Elementor for custom web experiences — delivering cohesive digital products from mobile app to web. With 30,000+ hours logged as a Senior React Native Full Stack developer, I specialize in React Native Expo (expo), React Native Firebase, React Native WebRTC, and React Native Engineer workflows across iOS and Android. This React Native Developer has shipped 100+ mobile app development react native apps spanning flutter mobile app development, ios mobile app development, and android — bringing a flutter developer and kotlin perspective to every cross-platform architecture decision. As a React Native Developer w full-stack depth, I excel in Node.js, Express.js, and PHP (including Laravel), alongside RESTful API and payment system integration. Across 300+ delivered projects, this React Native Development has built cross-platform React Native mobile apps using Expo to streamline deployment.

Your WordPress site should look sharp, sell more, and work smarter. That's what I build. I'm Asif. I've been doing WordPress full time for 9+ years, with 300+ jobs and a 100% Job Success Score on Upwork over 3,400+ hours. Most of my clients are in the UK, US, Australia, the Netherlands, and UAE, so I keep my hours overlapped with their time zones. You'll usually hear back from me within a few hours. ★ HERE'S WHAT I'M BEST AT ✔ Elementor Pro and custom builds. Pixel perfect, fully responsive, and clean Figma to WordPress conversions that stay easy to edit. ✔ WooCommerce stores that actually convert. Custom checkout, payment gateways like Stripe and Authorize.net, subscriptions, and product pages. ✔ WordPress with AI built in. Chatbots, content and workflow automation, plus custom API connections using OpenAI, Claude, and n8n. ✔ Speed and Core Web Vitals. 90+ PageSpeed with LCP, CLS, and INP all passing. ✔ Rescue jobs. If the last developer disappeared and left you a mess, send it over. ★ WHY CLIENTS KEEP COMING BACK ✔ Top Rated with 100% JSS across 300+ jobs. No drama, no disappearing. ✔ I actually communicate. If the scope changes, we talk about it. It never just shows up on your invoice. ✔ You work with me directly on every project. No handoffs, no junior swapped in behind the scenes. ★ MY STACK WordPress, Elementor Pro, WooCommerce, ACF, PHP, JavaScript, REST API, Figma, OpenAI and Claude APIs, and n8n. For hosting I've worked with Cloudways, Kinsta, WP Engine, and VPS setups on Plesk or Nginx. Send me your site URL and tell me what you're trying to build or fix. I'll come back with 2 or 3 quick wins within 24 hours.

Hello, I am Oleksandr! 🔥I build AI-integrated SaaS and mobile apps for fintech, travel & hospitality, real estate and healthcare startups and established businesses. Using React Native, Python, and React, I deliver secure MVPs from concept to launch. Backed by a 65+ dev team, I ensure scalable, compliant solutions with predictable delivery and rapid iteration.🔥 🚀 I also lead a web development team, Join.To.IT from Kyiv, Ukraine, as co-founder and CEO. We have multiple Laravel developers (Senior PHP and Custom PHP MySQL), Python (Django), and JavaScript (React, Vue, React Native) developers. If your project needs a dedicated mobile app developer, we can staff that role quickly, while I stay involved as a full stack developer to keep architecture, delivery, and communication aligned. When the UI scope grows, a senior web developer can join the project while I remain the full stack developer responsible for end-to-end quality.🚀 I’m an experienced Laravel engineer, React engineer, Vue engineer, and React Native engineer with 14 years of production experience. As a full stack developer I can build backend APIs, admin panels, dashboards, and customer-facing apps, and as a web developer I pay attention to UI details that improve conversion and retention. I’ve completed a wide range of successful projects, from MVPs to large systems with long-term maintenance and continuous improvements. My skills: React React Native Software Architecture & Design Laravel Python Full-Stack Development API Development JavaScript PHP Web Application Development Node.js AWS Development MySQL Mobile App Development Django WordPress HTML5 Tailwind CSS Web Design API Integration Stack of technologies we use: ✅ HTML/CSS, Bootstrap, Tailwind ✅ JavaScript (React, Vue, Node.js, Express, AdonisJS, Nuxt) ✅ React Native for cross-platform mobile delivery ✅ API integrations (Stripe, PayPal, Twilio, TextMagic, Xero, DocuSign, Google Maps, Meta APIs, and more) ✅ API development (Laravel, Node/Express, Firebase, Python/Django, Go, REST, GraphQL) ✅ PWA (Progressive Web App) ✅ Databases: MySQL, PostgreSQL, MongoDB, DynamoDB, Elasticsearch ✅ Infrastructure: AWS, DigitalOcean, Firebase, Supabase ✅ DevOps and administration: LAMP, CentOS, Ubuntu As a full stack developer, I connect the front end, back end, and infrastructure so releases are smooth. When the scope includes native-like UX, I can collaborate with a mobile app developer without slowing down the API roadmap, and a web developer can refine UI flows while we keep the backend stable. You can hire me as a full stack developer for full ownership, or extend the team and keep me as the full stack developer leading architecture and delivery. If timelines are tight, add a mobile app developer to parallelize mobile features, and add a web developer to accelerate dashboards and front-end work. Our team has already worked in such industries as: ✅ Marketplace ✅ E-commerce ✅ Travel and Hospitality ✅ Custom ERP (Enterprise Resource Planning) ✅ ChatGPT integration (LLM model in your website front end) ✅ Automotive (car inspection, automotive ERP, car sharing, rental, selling) ✅ Social media (Tinder-like networks, short video platforms, communities) ✅ Sales (CRM systems for sales teams, retail, hospitals, sales departments) ✅ Sport (gym management systems, trainer platforms, fitness apps, club portals) ✅ Legal (document automation, AI-assisted legal processing) ✅ Healthcare (clinic management, booking, mental health software) ✅ Education (LMS, automated training, coaching marketplaces) ✅ Finance (fintech platforms, investment platforms, bank API integrations, calculators) ✅ Manufacturing (shop floor management and automation) ✅ Human resources (HRM systems) ✅ Digital marketing (Meta, Facebook/Instagram, TikTok, Google APIs, analytics) In our work history you’ll find successful products built with Laravel, PHP, JavaScript, MySQL, React, Vue, WordPress development, Web Development, Full Stack development and React Native, plus multiple systems built with Python (Django, Flask, FastAPI). I also use LLM capabilities and AI APIs (including OpenAI integrations) when they genuinely improve the product experience. We have 65 senior developers across PHP, JavaScript, MySQL, Python, Go, and Node.js. As a full stack developer, I can jump into an existing codebase, stabilize releases, fix bottlenecks, and plan the next iterations. Don't hesitate to get in touch with me for further details and fruitful work. Best regards, Oleksandr CEO, JoinToIT

Written by an actual human. Ironic, since building with AI is my whole job, but every word here is mine, and so is every message you'll get. If a reply ever reads like ChatGPT wrote it, fire me. Most people who find me are holding an app that looks finished and isn't. Built in Lovable or Bolt over a weekend, demoed well, and now it's supposed to take real money from real users, and nobody knows whether it will hold. Or a contractor went quiet in week three and took the repo knowledge with them. That's the job. I read code I didn't write, work out what's solid and what only appeared to work, and get it to production properly. WHAT USUALLY TURNS UP API keys in the client bundle. Auth where any logged-in user can read another tenant's data. Stripe webhooks with no idempotency, so a retry double-charges. RLS policies that read correctly and don't actually isolate anything. No tested backup. Demo screens propped up by an empty backend. None of it shows up in a demo. All of it shows up in production. START WITH AN AUDIT. $400, 2 days. You give me repo access. You get a written report: every finding with file and line reference, severity, reproduction steps, and what it costs to fix. Auth and tenant isolation, exposed secrets, payment flow integrity, RLS correctness, behaviour under load. The report is yours whether or not you hire me for the fixes. You can hand it to any developer. Already have a developer and want a second opinion before launch? I do the review-and-verify side on its own. The person doing the work shouldn't be the person saying it passed. THEN, IF YOU WANT IT FIXED I keep what works, rebuild what doesn't, and hand the system back properly. Repo in your GitHub org, secrets rotated, staging and production separated, deploys you can roll back, and documentation good enough that the next developer doesn't need me. RECENT WORK Trimi. Lovable to Claude Code migration in two hours. Organic traffic 250k to 500k monthly after the migration and SEO push. Founders now ship updates without me. That was the point. Milpath. AI SaaS built with Claude Code and Codex, $5k MRR in 90 days. claudemarket.ai. My own AI directory, 60,000+ monthly visitors from technical SEO. Helpie AI. 1,000+ monthly active users. O-ts. 2x conversion rate after rebuild. ALSO MVP builds from scratch, idea to live product taking payments. AI apps and agents: Claude API, OpenAI API, RAG, chatbots. Migrations off Lovable, Bolt.new, Replit, Base44 and v0. Supabase auth, RLS, edge functions, Postgres schema design. Stripe checkout, webhooks, subscriptions. Claude Code and CLAUDE.md setup so your team can build AI-native without me. Blocked on a security review or an enterprise questionnaire? I do production hardening with a written control summary you can hand to whoever is asking. Stack: Lovable, Claude Code, OpenAI Codex, Base44, Replit, Bolt.new, Supabase, React, Next.js, TypeScript, Vercel, Stripe, n8n, OpenClaw. THE GUARANTEE Free scoping call before you spend anything. We map features, flows, milestones and price. Not a fit, you keep the plan. Working prototype in 3 weeks, real functionality on a live database, no mockups. Unlimited revisions within scope. WAYS TO WORK Audit, $400 fixed. Review and sign-off only, if you have a developer already. Fixed-price build or rescue, typically $2,500 to $15,000. Fractional developer, 10 to 30 hrs/week. Retainer from $650/month. You own the code either way. WHY THE SPEED IS REAL I was a software engineer at brainpool.ai, a London AI consultancy, building production LLM systems with LangChain, RAG pipelines and the Claude and OpenAI APIs before going freelance. That's the part that matters here. I can read the code, not just prompt it. When something breaks I debug it, rather than re-prompting until the error goes away and three new ones appear underneath. Claude Code, Lovable, Codex and Supabase are my daily tools, and after 50+ shipped projects I know where they fall over. Which generated auth patterns leak data, which edge functions time out under load, which screens are propped up by nothing. Knowing the failure points is what makes moving fast safe. WHAT CLIENTS SAY "Every technical finding, missing security headers, robots.txt, llms.txt, structured data, was specific, accurate and independently verified." SaaS founder, product audit. "Gets the job done without all the problems of working with the discount freelancers we all know about." Figma to Lovable build. Both from my verified reviews below. ABOUT ME I'm Zac. One developer in London, no account managers, no handoffs. I teach this stack to 3,000+ developers on YouTube and in a paid community. I keep the project load small, so if I'm at capacity I'll say so. No Shopify stores, and if you want pixel-perfect Figma work I'm the wrong hire Daily overlap with US Eastern. Hit Invite to Job and tell me what's broken. Fixed-price proposal within 24 hours

A mobile app is only as reliable as the systems behind it. I build AI-powered mobile applications for founders and product teams that need more than screens. I handle the React Native or Flutter app, Node.js backend, APIs, real-time features, AI integrations, and launch preparation as one connected product. I have been building software since 2014. On Upwork, I have earned $100K+ across 38 contracts and 4,164 hours, with 100% Job Success and Top Rated status. 𝗔𝗜 𝗠𝗢𝗕𝗜𝗟𝗘 𝗔𝗣𝗣 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 I help clients build and improve: ✅ AI mobile apps using React Native, Flutter, Node.js, and OpenAI ✅ Cross-platform iOS and Android applications ✅ Flutter app development with Dart, Firebase, APIs, and push notifications ✅ Caregiver, wellness, and medical-education applications ✅ Calling and messaging apps with call history, contact rules, and real-time communication ✅ AI chat, document processing, semantic search, and voice-to-voice experiences ✅ Booking, payment, subscription, and marketplace workflows ✅ Real-time applications with notifications, live data, and reliable synchronization ✅ Existing mobile products that need new features, integrations, or backend improvements 𝗥𝗘𝗟𝗘𝗩𝗔𝗡𝗧 𝗣𝗥𝗢𝗝𝗘𝗖𝗧 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘 My longest Upwork client relationship was TeleCalm, a phone-safety product for seniors living with Alzheimer’s and their caregivers. Across three contracts and approximately 1,641 hours, I worked on the caregiver mobile application and supporting telephony backend. The product handled contact management, blocked callers, call history, phone-service rules, telephony events, call records, and administrative visibility. I have also delivered: • A real-time voice-to-voice chatbot for iOS, Android, and web • A React Native iOS application through a 548-hour, 5-star contract • An AI creator-insights SaaS platform through an $8,000, 5-star contract • A Node.js, AWS, Serverless, OpenAI, and Prisma backend for Bummock AI • OpenAI-powered document processing, semantic search, and messaging applications 𝗠𝗢𝗕𝗜𝗟𝗘 𝗔𝗣𝗣 𝗔𝗡𝗗 𝗔𝗜 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 Mobile App Development • AI Mobile App Development • React Native • Flutter • Flutter App Development • Dart • iOS Development • Android App Development • Cross-Platform App Development • Hybrid App Development • Node.js • TypeScript • OpenAI API • AI Model Integration • API Integration • REST API • PostgreSQL • Supabase • AWS • Firebase • Push Notifications • Chat and Messaging Software • Full-Stack Development 𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞 * Understand the users, business requirements, and existing product * Define the scope, architecture, milestones, and technical risks * Build the mobile experience, backend, and integrations * Share reviewable builds throughout development * Prepare the application for testing, deployment, and store submission * I can work from an early product idea, extend an existing application, or take ownership of a specific mobile or AI feature. I will also tell you when a feature adds unnecessary cost or complexity. 𝗡𝗘𝗫𝗧 𝗦𝗧𝗘𝗣 Send me: • What the application does • Whether it is new or already in development • The main feature or problem you need help with • Your preferred timeline I will review the requirements and give you a direct assessment of the scope, technical approach, and best next step.