Flutter Mobile App Developer | AI Mobile App Development | Computer Vision Integration | iOS & Android | Cross-Platform Mobile App Development | Full Stack I build intelligent, scalable, production-ready mobile applications that pass store review and grow with your business. What separates me from other Flutter Developers on Upwork is a combination of deep Mobile App Development experience with real AI and Computer Vision capabilities — turning your camera, data, and workflows into smart, revenue-generating features. ──────────────────────────────────────── CORE MOBILE APP DEVELOPMENT SERVICES ✅ Full-Cycle Flutter Mobile App Development — Idea to App Store and Google Play ✅ AI Mobile App Development with OpenAI API, Claude AI and Custom ML Models ✅ Computer Vision Integration — Object Detection, OCR, Face Recognition, Image Classification ✅ Cross-Platform Mobile App Development — Flutter and React Native ✅ Native Mobile App Development — Android (Kotlin) and iOS (Swift, SwiftUI) ✅ FlutterFlow App Development for Rapid MVP Delivery ✅ Full Stack Mobile App Development with Node JS and Python Backends ✅ AI App Development with LLM Integration, RAG Architecture and Workflow Automation ──────────────────────────────────────── TECH STACK Mobile App Development: Flutter, Dart, FlutterFlow, React Native, Swift, SwiftUI, Kotlin AI and Computer Vision: OpenAI API, Claude AI, TensorFlow Lite, MediaPipe, OpenCV, ML Kit, Custom Vision Models Backend and API Development: Node JS, Python (FastAPI, Django, Flask), Laravel, REST API, GraphQL Databases: Firebase, Firestore, Supabase, PostgreSQL, MongoDB, MySQL, SQLite Cloud Services: AWS, Google Cloud, Firebase Cloud Functions Payments: Stripe, RevenueCat, Apple Pay, In-App Purchases, PayPal Real-Time and Communication: WebSockets, Socket IO, PubNub, WebRTC, Twilio Maps and Location: Google Maps, Mapbox, Real-Time GPS Tracking Tools and Workflow: Git, GitHub, Bitbucket, Jira, Trello, Figma, Adobe XD, CI/CD Pipelines ──────────────────────────────────────── MOBILE APPS I HAVE BUILT ✅ AI-Powered Flutter Apps with Computer Vision (iOS and Android) ✅ Food Delivery Mobile App Development (iOS and Android) ✅ E-Commerce Mobile App Development with Flutter ✅ Ride Booking Mobile App like Uber — iOS and Android ✅ Doctor Appointment Booking Mobile App — Flutter, HIPAA Compliant ✅ Fintech Mobile App Development (iOS and Android) ✅ Social Media Mobile App Development ✅ Grocery Mobile App Development (Android and iOS) ✅ Real Estate Listing Mobile App Development ✅ Learning Management Mobile App Development ✅ AI Fitness Mobile App Development ✅ Event Management Mobile App Development ✅ On-Demand Service Booking App — Home, HVAC, Salon ✅ Inventory Management Mobile App for iOS and Android ✅ Task Management Mobile App (iOS and Android) ✅ Sports Mobile App Development ✅ Meditation and Wellness Flutter App ✅ Marketplace Mobile App Development ✅ Language Learning App Development ✅ CRM and Investor Management Systems ──────────────────────────────────────── KEY FEATURES DELIVERED ✅ Computer Vision and Image Recognition ✅ Face Detection and Biometric Authentication ✅ Barcode and QR Code Scanners ✅ Real-Time Chat Systems with Socket IO and PubNub ✅ Video Calling Integration with WebRTC and Twilio ✅ Bluetooth and IoT Device Connectivity ✅ Payment Gateway Integration — Stripe, Razorpay, Apple Pay ✅ Maps and Real-Time GPS Tracking ✅ Social Login Integration — Google, Apple, Facebook ✅ Push Notifications and In-App Purchases ✅ Audio Recording and Media Processing ✅ Ad Integration — AdMob, Facebook Ads ✅ App Store and Google Play Deployment ──────────────────────────────────────── WHY WORK WITH ME ✅ AI and Computer Vision specialist — a rare skill set in Mobile App Development ✅ Full-cycle delivery from wireframe to App Store and Google Play launch ✅ Clean Architecture, Flutter BLoC and MVVM for maintainable, scalable code ✅ 100% Job Success — every client gets what they envisioned, on time ✅ Fast response within 0 to 4 hours with transparent communication throughout ✅ Post-launch support included — long-term reliability after delivery ✅ I work as your technical partner, not just a developer writing code ──────────────────────────────────────── Whether you need a Flutter App Developer for an MVP, a scalable AI-powered Mobile App, or Computer Vision integration into an existing product — send me your project details and I will reply within 4 hours with a clear roadmap and estimated timeline. Let's build something your users will love. Flutter Mobile App Developer | AI App Developer | Computer Vision Specialist

Need a developer who ships clean, reliable web and mobile apps and actually understands the business behind them? That is what I do. I'm a Full-Stack Developer with 5+ years of experience building production-grade web, mobile, and desktop applications for startups, agencies, and healthcare companies. I work end to end, from the first architecture decision all the way through launch and ongoing support. WHAT I BUILD - Web apps with React, Next.js, Node.js, Fastify and Express - Backends and REST APIs with Node.js and Python (FastAPI), plus any SQL or NoSQL database (PostgreSQL, MySQL, MongoDB, and more) - Mobile apps for iOS and Android with React Native - Desktop apps with Electron - Cloud and deployment: comfortable across AWS (EC2, RDS, S3, CloudFront), Vercel, Netlify, DigitalOcean, and Docker with CI/CD. I pick the platform that fits your stack, scale, and budget instead of forcing a one-size-fits-all setup MY SPECIALTY: HEALTHCARE AND MEDICAL SOFTWARE I've built DICOM-compliant medical imaging systems (pydicom, pynetdicom, HL7), clinical trial data platforms, and apps with secure role-based access control (RBAC) and JWT authentication, including encrypted, multi-tenant file storage and time-limited secure sharing. If you work in health-tech, I already speak your language, and I take compliance and data security seriously. RECENT WORK - Clinical trial management platform (React, Fastify, Python/FastAPI, PostgreSQL) deployed on AWS (EC2, RDS, S3, CloudFront), with DICOM medical image processing, encrypted file sharing, and analytics dashboards - MediFlow, a full medical store and pharmacy management system (React 19 with TypeScript frontend, async FastAPI and PostgreSQL backend) featuring batch-wise inventory, expiry tracking, sales and purchase, ledger accounting, barcode/QR, and PDF/Excel reports - Mental health app for patients and caregivers with medication tracking, questionnaires, and real-time chat (React Native) - Restaurant ordering platform with a web admin portal and a consumer mobile app with social logins - Social networking app with live streaming and real-time chat (PubNub, Agora) WHY CLIENTS WORK WITH ME - Clean, maintainable code and clear, frequent communication - I ask the right questions before writing a single line of code - Honest timelines and on-time delivery - I stick around for support after launch Whether you want to build something from scratch, rescue a messy codebase, or add features to an existing app, let's talk. Send me a message with your project details and I'll reply with honest, no-pressure next steps. Faizan

I’m Himanshu Patel, a dynamic Senior Full Stack Developer with over 15 years of experience in delivering robust web solutions and managing complex projects. Holding a Bachelor's in Computer Science & Engineering from Gujarat Technological University, I specialize in developing optimized, high-performance applications tailored to client needs. Key Skills & Technologies : Backend: PHP, Laravel, CodeIgniter, Symfony, NodeJs, ExpressJs Frontend: React.js, Vue.js, Next.js, jQuery, JavaScript, Inertia, Livewire Databases: MySQL, MongoDB , PostgreSQL Real-time Communication: WebRTC, Socketio, PubNub DevOps & Cloud: VPS management, server configuration, NodeJs/PHP/Python server setups Payments & Integrations: Stripe, Crypto payments, Twilio , OpenAI API, Google Maps AP I thrive on building scalable and efficient solutions, handling complex logic seamlessly, and consistently delivering quality work on time. Let’s connect to bring your innovative ideas to life!

🚀 AI & Full Stack Developer | SaaS | Automation Expert (n8n) | React | Node | Next.js I’m a Full Stack Developer with 6+ years of experience helping startups and businesses turn ideas into scalable, high-performance web & mobile applications. From AI-powered SaaS platforms to automation workflows (n8n) and real-time systems, I don’t just build. I think strategically, suggest improvements, and focus on delivering real business value. Whether you're starting from scratch, improving an existing product, or stuck mid-development. I can step in and get it done right. 💡 What I Can Do For You 🔹 Full Stack Development - Frontend: React.js, Next.js, Vue.js, TypeScript - Backend: Node.js, Nest.js, Express.js, Php, Laravel - APIs: REST, GraphQL 🔹 AI Integration & Automation - OpenAI (GPT), LangChain integrations - AI Chatbots & smart assistants - Workflow automation using n8n & Zapier - Recommendation systems & AI features 🔹 SaaS Product Development - CRM, ERP systems - Dashboards & admin panels - Subscription-based platforms - Scalable SaaS architecture - Progressive Web Apps (PWA) - Real-time features & location-based apps - Real-Time Systems - WebSockets, Firebase - Live notifications & chat systems - Twilio, PubNub integrations 🔹 Payments & E-commerce - Stripe, PayPal, Razorpay - Secure checkout systems - Scalable product architecture 🔹 Cloud & DevOps - AWS (EC2, S3, Lambda, Cognito) - CI/CD pipelines - Docker & scalable deployments 🔹 Database Expertise - MongoDB, PostgreSQL, MySQL, DynamoDB - Optimized schema design & performance tuning 🎯 Why Clients Work With Me ✔ Clean, scalable, and maintainable code (not quick hacks) ✔ Strong communication & on-time delivery ✔ Ability to work at any stage (idea → launch → scaling) ✔ Long-term support & feature expansion 🔑 Keywords Full Stack Developer | React.js | Node.js | Next.js | SaaS Developer | AI Chatbot | GPT Integration | n8n Automation | API Developer | Cloud Engineer | DevOps | Stripe Integration | CRM/ERP Systems 📩 Let’s Build Something Great Have an idea or project in mind? Let’s connect and turn it into a powerful, scalable product 🚀

I build production iOS and Android apps that actually ship — 8+ published and live, including an AI image generator, real-time video and chat platforms, and payment-integrated apps. I handle the full picture: native mobile apps and the backend that powers them (Laravel, Node.js). One developer, both platforms, no handoffs. With 4+ years in Swift, UIKit, Objective-C, and Kotlin, I've shipped apps across telehealth, live streaming, social, edtech, and AI — many with complex real-time and monetization features that most freelancers can't deliver alone. ━━━━━━━━━━━━━━━━━━━━ 🤖 AI WORK (my current focus) ━━━━━━━━━━━━━━━━━━━━ ▪ AI Chat PDF Chat with any PDF in plain language. Upload a document and ask questions, get summaries, or pull specific details. The app reads the full document and answers using LLM APIs, grounded in the actual content rather than guesses. Built for contracts, research papers, manuals, and study material. ▪ AI Cam Point your camera at the real world and ask anything by voice. Capture a live scene, speak your question, and the app understands both the image and your voice to answer in real time — identify objects, translate signs, or explain what you're looking at. Combines live camera capture, speech-to-text, and a vision-capable LLM for a hands-free experience. ▪ AI Art and Photo Generator Turn text prompts into images across multiple themes and aspect ratios, with favorites saved via Core Data and example prompts from Firebase. Published and live. ▪ AI / LLM Integration I plug OpenAI, Anthropic, and Google AI into iOS and Android apps — chatbots, image generation, vision, and voice — backed by my own Laravel and Node APIs. ━━━━━━━━━━━━━━━━━━━━ 📱 OTHER SHIPPED APPS ━━━━━━━━━━━━━━━━━━━━ ▪ Lolo Live — global live-streaming and short-video app with 1:1 video calls (Agora), real-time chat, and in-app gifting for creators. ▪ Anytime Clinician — telehealth app for doctor-patient video consultations and real-time chat (Twilio, PubNub), with FaceID and TouchID login. ▪ Reelster — Instagram-style reels app with age-based parental controls, creator monetization, and 1:1 video calling. ▪ Tester VSE — exam-prep app with PDF-based testing, error tracking, and in-app purchases. ━━━━━━━━━━━━━━━━━━━━ ⚙️ WHAT I DELIVER ━━━━━━━━━━━━━━━━━━━━ ▪ Native iOS — Swift, UIKit, Objective-C, full store submission ▪ Native Android — Kotlin, Play Store submission ▪ AI integration — image generation, chatbots, vision, voice ▪ Real-time — video calls, live streaming, chat (Agora, Twilio, Zegocloud) ▪ Payments — Stripe, Apple Pay, RevenueCat, in-app purchases ▪ Backend & APIs — Laravel, Node.js, Firebase, REST ━━━━━━━━━━━━━━━━━━━━ I respond fast, ask the right questions before writing code, and don't disappear mid-project. Send me your iOS or Android project and I'll tell you exactly how I'd build, fix, or scale it.

Hi there, thank you for visiting my Profile. Need a clean, responsive, and modern website? I help businesses build fast and user-friendly web applications using Angular, React, JavaScript, HTML, and CSS. I specialize in creating responsive UI, integrating APIs, and turning designs into fully functional web applications. ✅ Technical Skills {​​​Full Stack}​​​ ✔ Web Development ◾ Backend Development ( PHP, Laravel, CodeIgniter, Node.js, ExpressJs, Sails Js. ) ◾ Ecommerce Development ( WordPress, Woo-commerce, Big- Commerce, Shopify. ) ◾ Front-end Development ( HTML/HTML5, CSS3, Angular.js, React, Vue.JS, Bootstrap ) ◾ Database and Server ( SQL, MySQL, MongoDB, and AWS, Google Cloud. ) ◾ SAAS (CRM, Invoice Application, Marketing Annotation, Analytics) ◾ API: Google Maps API, Skyscanner Flight Search API, Open Weather Map API, Facebook API, and Development Tools: Sublime Text, Git, Apache, Nginx. ✔ Web Design ◾ PSD to HTML, HTML to WordPress, PSD Design, Logo Design, Illustrator Design, Graphics Design, Layout Design, HTML, HTML5, CSS , SCSS, Javascript, Twitter Bootstrap, AJAX, AngularJS. ✅ Others : Twilio, MailGun, PubNub, MailChimp, Stripe, Docker, AWS server setup, git ✅ Availability: 40hrs/ Week (Full time- 5 days) I am available full-time on Upwork to stay connected with you all time and provide you with quick solutions.

Highly motivated and ambitious Full-stack Node.js Developer with "gimme a new challenge" attitude. As an experienced software engineer, I like to drive my coding passion into building highly efficient production-level web and mobile applications. A few of my skills: - HTML, CSS, Bootstrap, Material-UI - JavaScript, Angular, TypeScript, React, Redux, - Node.js, Firebase, Express.js - MongoDB, MySQL, PostgreSQL, MS SQL What I can produce for you: - eCommerce websites and business web applications - Mobile apps for iOS and Android platforms with React Native or Ionic - Restful APIs for iOS and Android Mobile Applications Whatever you need to be done, I will find the appropriate solution that makes the real sense for you. If you have an idea to create something from scratch, I am happy to start from nothing and rapidly deliver a minimal viable prototype to you. If you have something existing that needs to be enhanced, I have lots of experience dealing with outdated and legacy systems. While I work with multiple clients, they were all more than satisfied with provided work results. I understand how time is important to you. Any tough or cool app ideas? Feel free to let me know and I will help you out.

Full-Stack Developer | Backend Architect | Complex API & Fintech Solutions "I don't just write code; I engineer solutions for business-critical technical challenges." Most developers can build a form; few can architect a secure, real-time fintech bridge or a multi-role virtual ledger system. If your project involves complex logic, sensitive data flows, or deep third-party integrations, you need a developer who prioritizes root-cause analysis over quick patches. SOLUTIONS I PROVIDE: ‣ Payment & Fintech Engineering: Specialized in building enterprise-grade payment bridges (Stripe, Razorpay, PayPal). I handle the high-stakes logic: custom webhooks, real-time status syncing, and secure virtual ledger architectures. ‣ Complex API Ecosystems: Expert at integrating disparate technologies—from AWS (EC2, S3, Route53) and Social Auth (Apple/Google) to specialized communication APIs (Twilio, PubNub, Infobip). ‣ Scalable Backend Architecture: Building robust, high-performance systems using PHP (Laravel, Yii2) and Python (Django). I design MySQL schemas optimized for data integrity and long-term scalability. ‣ Infrastructure & DevOps: I manage the full environment. From Docker containerization for consistent deployment to configuring Nginx/Apache servers on Linux (Ubuntu). PROVEN PROBLEM SOLVING: ‣ Fintech: Engineered payment status synchronization for global transactions using custom-built listeners. ‣ E-Gift Systems: Designed a multi-role ecosystem from scratch, featuring an independent ledger to manage secure internal transactions. ‣ Govt-Approved Platforms: Developed high-compliance maritime training portals (HmiKolkata) with secure e-learning and enrollment flows. ‣ Open Source: Author of DJ-ALL-AUTH and Notify—tools built to solve specific authentication and UI challenges. WHY CLIENTS HIRE ME: ‣ Logic-First Approach: I dissect the "why" behind a bug before writing a single line of code. ‣ Infrastructure Ownership: I don't just build the app; I ensure the server, DNS, and cloud storage are optimized and secure. ‣ Zero Hand-holding: I am a Linux-native developer who takes ownership of the technical requirements so you can focus on the business. Stop fighting with recurring bugs. Let's build a stable, scalable solution.

𝟏𝟓+ 𝐒𝐚𝐚𝐒 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬 𝐬𝐡𝐢𝐩𝐩𝐞𝐝 · 𝟖+ 𝐰𝐢𝐭𝐡 𝐀𝐈/𝐋𝐋𝐌 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 · 𝟖+ 𝐲𝐞𝐚𝐫𝐬 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 I help founders turn ideas into AI-powered SaaS products, shipped in weeks, not months. I'm new to Upwork, but not new to shipping. For the last 8 years I've been building SaaS platforms, e-commerce systems, and AI-powered products for founders and funded startups If you're a founder with a validated idea but no technical co-founder, or a startup that needs to move from prototype to production fast, I build the kind of SaaS platform that actually launches, gets users, and scales. Not a throwaway prototype. Not a 6-month build. A real product your customers can use. 𝐖𝐡𝐨 𝐈 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡: → Non-technical founders building their first AI SaaS MVP → Funded startups moving from prototype to production → Product teams adding AI features to existing platforms → Agencies needing a senior developer to own delivery 𝐖𝐡𝐚𝐭 𝐈 𝐛𝐮𝐢𝐥𝐝: → AI-powered SaaS platforms with multi-tenant architecture, subscription billing (Stripe), and role-based access → LLM integrations using OpenAI, Claude, and Gemini APIs — chatbots, AI agents, document intelligence, RAG pipelines → MVPs shipped in 4-8 weeks with clean architecture that won't need a rewrite at scale → Admin dashboards, CRMs, and internal tools with AI baked in where it actually moves the needle → Real-time features with WebSockets and Pub/Sub (PubNub), plus HIPAA-compliant healthcare platforms 𝐓𝐞𝐜𝐡 𝐬𝐭𝐚𝐜𝐤: Frontend: React, Next.js, TypeScript, Tailwind CSS, Shadcn Backend: Node.js, Express, NestJS, Python, FastAPI Database: PostgreSQL, MongoDB, Supabase, Redis AI/LLM: OpenAI API, Claude API, LangChain, Pinecone, RAG, vector search Payments: Stripe subscriptions and billing Auth: Clerk, NextAuth, JWT, OAuth2, RBAC Deploy: AWS, Vercel, Docker, CI/CD Automation: n8n, Zapier, custom workflows 𝐇𝐨𝐰 𝐈 𝐰𝐨𝐫𝐤: 1. Discovery — I learn your product, users, and constraints. I tell you honestly if I'm the right fit. 2. Architecture — Before writing code, I define what we're building and why. Clear scope, timeline, milestones. 3. Build — I ship in weekly sprints. You see working software every week, not status updates. 4. Launch — Production deployment with monitoring, documentation, and 2 weeks of post-launch support. 𝐑𝐞𝐜𝐞𝐧𝐭 𝐰𝐨𝐫𝐤: → Event ticketing SaaS with real-time availability, tiered pricing, and marketing automation. Delivered 35% higher conversions and 60% wider campaign reach. → Cross-border logistics platform on MERN stack with Stripe, real-time tracking, and admin dashboard. Resolved 90% of production bugs and lifted conversions 26%. → Headless WooCommerce rebuild with React, Next.js, and Laravel backend for an industrial services business. 45% faster load times and 30% more transactions. → HIPAA-compliant patient management platform with secure data handling and integration workflows for US healthcare clinics. 𝐖𝐡𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐡𝐢𝐫𝐞 𝐦𝐞: ✔ Strategic partner, not just a coder: I point out gaps and suggest better approaches ✔ Production-first: clean code, proper error handling, scalable architecture from day one ✔ Fast iteration: MVPs in 4-8 weeks using modern AI-assisted development workflows ✔ Clear communication: weekly demos, honest timelines, no disappearing acts ✔ Full ownership: from discovery to deployment to post-launch support 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬: SaaS, Healthcare/HIPAA, E-commerce, FinTech, EdTech, Marketplaces 𝐍𝐞𝐱𝐭 𝐬𝐭𝐞𝐩: Send me a message with your idea, rough budget, and timeline. I'll reply within 24 hours with: - Whether I'm the right fit (I say no to bad-fit projects) - A rough scope and phased timeline - 2-3 questions to sharpen the direction No sales pitch. No pressure. Just a straight answer. AI SaaS Developer, AI Full Stack Developer, SaaS MVP Developer, AI Engineer, LLM Integration, OpenAI API, Claude API, Anthropic API, AI Chatbot Developer, AI Agent Developer, RAG Pipeline, LangChain, Vector Database, Pinecone, Next.js Developer, React Developer, Node.js Developer, TypeScript, Full Stack JavaScript, Multi-Tenant SaaS, Stripe Integration, Subscription Billing, HIPAA Compliant Developer, Healthcare Software, MVP Developer, Startup MVP, Rapid Prototyping, Production-Ready SaaS, FastAPI, Python, PostgreSQL, Supabase, Real-Time Applications, WebSockets, PubNub, n8n Automation, Zapier, Workflow Automation

⭐⭐⭐⭐⭐ "Devashish just understood my project quickly and finished in 3 days — I had given him 15 days. Impressive." If you're building a SaaS product, a marketplace, or adding AI features to your existing app — you need a developer who's done it before, in production, at scale. I'm Devashish, a Full-Stack JavaScript developer with 6+ years of experience shipping real products used by real users. I've built platforms across healthcare, fitness, food delivery, book tech, virtual events, and enterprise workforce management — from early-stage startups to companies running IBM enterprise systems. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🤖 AI INTEGRATION — MY CURRENT FOCUS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Businesses need AI features but can't hire a full ML team. I bridge that gap — as a full-stack developer who understands both the product and the AI layer. What I can build for you: → Custom AI chatbots trained on your own data (RAG pipelines) → Semantic search using OpenAI embeddings + pgvector / Supabase → OpenAI API integrations — GPT-4, streaming, function calling, assistants API → AI-powered workflows — document Q&A, content generation, smart recommendations → Vector database setup and optimization (pgvector, Supabase) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💻 FULL-STACK DEVELOPMENT ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Frontend: React.js, Next.js, Vue.js, React Native — fast, responsive, pixel-perfect UIs. Complex dashboards to consumer mobile apps. Backend: Node.js + Express, REST & GraphQL APIs, real-time features via Socket and PubNub. Built for scale and reliability. Databases: MongoDB, PostgreSQL, MySQL, Supabase — including vector search with pgvector. Payments & Integrations: Stripe, PayPal, Firebase, Mixpanel, IBM TRIRIGA/Maximo, OAuth/JWT. Testing & Quality: Jest, React Testing Library, Postman — I write tests, not just code. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🏗️ PRODUCTS I'VE SHIPPED (LIVE & IN PRODUCTION) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🧠 Marigold Health Mental health & drug recovery platform with real-time patient-provider communication. Tech: React, Node.js, React Native, PostgreSQL, PubNub, Mixpanel 🎪 Xpro.ai Virtual exhibition platform with avatar navigation, 3D environments, and live audio/video. Tech: React, Node.js, Socket, MongoDB, Firebase, Unity 📚 Hardcover Book discovery & tracking platform — reusable component architecture, optimized UX. Tech: React.js 🍱 Tiffin Mom Meal subscription & food delivery platform with PayPal integration and order management. Tech: React, Node.js, MySQL 💪 MokoBoko Fitness studio booking with Stripe payments, class scheduling, and user management. Tech: React, Node.js, Stripe, Supabase 🏢 FieldFLEX Enterprise workforce management platform — B2B, distributed teams, IBM ecosystem. Tech: Vue.js, Node.js, PostgreSQL, IBM TRIRIGA/Maximo ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⭐ CLIENT REVIEWS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⭐⭐⭐⭐⭐ "Devashish did a wonderful job. What stands out most is going the extra mile and guiding me for problems that might come up in the future. Thank you!" ⭐⭐⭐⭐⭐ "If you have the opportunity to work with Devashish, go for it! He is skilled and we look forward to working with him again for our next Node.js project!" ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ WHY CLIENTS REHIRE ME ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ → I've worked in remote-first, distributed teams across time zones — async communication is second nature → I ask the right questions before writing a line of code — no mid-project surprises → I deliver complete, tested, documented features — not rough drafts → I finish early more often than late → You won't need to hand-hold me — I take ownership and keep you updated ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📩 LET'S TALK ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Send me a message describing your project — even a rough idea is enough to start. I'll tell you honestly if I'm the right fit, and if I am, we'll move fast.