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My professional career has spanned three interconnected tracks—Desktop Application Development, Embedded Software Development, and Hardware/Systems Engineering—spanning over 20 years since starting as a C++ programmer in 1999. In recent years, my focus has shifted toward high-impact Desktop Application development (including VBA automation, .NET Core/WPF modernization, and end-user support), while leading end-to-end projects that integrate AI, IoT, custom device drivers, scientific simulations, audio DSP, and video analytics. As a Top-Rated Upwork talent with 100% Job Success and $100K+ earnings, I deliver scalable, reliable solutions across PC, Web, Mobile, Embedded, and AI-powered systems. I have successfully completed 200+ projects, pioneering innovations like Vehicle/Face Recognition, OCR, LLM-based Chatbots (including ChatGPT/OpenAI API | Grok integration), Speech Processing, and advanced IoT integrations since 2008. I specialize in: AI & Machine Learning : OpenCV, TensorFlow, Tesseract OCR, Grok LLM, Google Speech APIs Device Drivers & Systems Programming : NDIS, WFP, USB, Bluetooth, WiFi, Printer (Monolithic/PS/XPS/Unidriver), PCI , Smartcard. Virtual Audio/Video Desktop & Cross-Platform Development : C++, QT, MFC, WPF, .NET, MAUI, ActiveX, Plugins Scientific & Engineering Simulations : CAD/ZW3D integration, OpenMP, Scientific and Engineering Simulation tools for research , STEM Tools , Instrumentation Software Solutions , Audio/Video Processing : JUCE, DirectX, FFMPEG, RTMP/RTSP, Video Analytics IoT & Embedded — ESP32, STM32, Raspberry Pi, MQTT, CAN, SignalR Leading a skilled team of C++/C#/Java developers, I modernize legacy systems (e.g., VC++ 6.0 to modern frameworks), build custom IoT-AI solutions, and provide exceptional troubleshooting/debugging for complex challenges. Clients choose me for proven expertise, timely delivery, and innovative results that turn visions into production-ready software. Need an AI-enhanced IoT system, robust device driver, scientific simulation tool, audio DSP solution, Instrumentation Software , or full-stack desktop/embedded application? Let's discuss how I can help bring your project to life—message me today!

I am a full-stack developer with 10+ years of experience in Web development using JavaScript frameworks and Cursor Pro. I have solid experience in Node, Angular, React, Vue, Nest & REST APIs. I have successfully delivered challenging enterprise projects. ✔ Top Rated Plus ✔ 10+ years of experience ✔ 100% Job Success Rate ✔ 100% Quality My services include the development of websites and web-based applications, customization of existing solutions, architecture design (all server, code, and database levels), bug fixing, and technical support. Expertise in the below-listed skills & experience. Front-end Development: Angular, React, Vue, Next Back-end Development: Node, Express, PHP/Laravel, SailsJS, Hapi, MeanJS, NestJS, Fastify NoSQL Databases: MongoDB, Dynamodb, Redis, FireBase, Elastic Relational Databases: MySql, Postgresql, SQLite, SQL Server Workflow Automation Tool: Gulp, Grunt, Webpack, CircleCI, Travis, AWS Pipeline Control Flow Automation: Async.js, Bluebird, Lodash/Underscore, Async/Await, Native Promises Other UI Frameworks HTML5, CSS(SASS, SCSS, LESS), BootStrap, jQuery, Angular Material, Flex Version Control & Project Management: Git, Bitbucket, SVN, JIRA, Trello, Asana, Mantis Deployment: AWS, Heroku, Digital Ocean, Google Cloud, VPS Services & API PayPal, Stripe, Braintree, Instagram, YouTube, Google Maps, Twilio, Facebook Graph, Google, GitHub, Mandrill, AWS, Nightmare, Puppeteer Test-Driven Development: Mocha, Chai, Jest, Tape Quick and easy learning, as well as the pronounced talent to hand over knowledge, adaptability, creativity, and sound logic. I’m analytical, devoted to the job, undependable, and sometimes a perfectionist, but always loyal. Additionally, I handle the pressure well, meet deadlines, and am independent in solving tasks etc. I also have good experience with set-up projects from scratch, requirement analysis, project management, and Client communications. * 7+ years of JavaScript (Node, Angular, React) development * 8+ years of formal experience with HTML, CSS, and JavaScript with Frontend and Backend web development

Completed 50+ world-class 3D product configurators across various industries. With 20 years of experience in computer graphics and computational geometry, I help businesses turn complex 3D and visual data into interactive, production-ready software — from AI-powered computer vision pipelines to real-time 3D configurators and digital twins. On the 3D configurator and e-commerce side, I create web-based experiences where users can load, customize, and augment products in real-time using WebGL/Three.js and modern JavaScript, then purchase directly through the website — turning static product pages into interactive sales tools. My technical foundation covers both precision CAD work (STEP/IGES) and mesh-based pipelines (STL/OBJ), using geometry kernels like Parasolid, Open Cascade, CGAL, and IGL, graphics libraries like VTK and OpenGL, and languages including C++, C++/CLI, C#, and JavaScript, with UI frameworks like Qt and MFC for desktop tools. On the computer vision and AI side, I build systems that extract measurements, detect defects, and verify manufacturability directly from images, scans, or CAD models — including photogrammetry pipelines that reconstruct accurate 3D models from real-world photos for digital twin and inspection use cases. Whether the challenge is reconstructing real-world geometry through photogrammetry, building a digital twin that mirrors physical assets, training a vision model to inspect or measure parts, or shipping a configurator that helps customers buy with confidence, I bring deep geometry expertise together with modern AI and graphics tooling to deliver solutions that solve real engineering and business problems.

Message me 'JAM' for FREE 60 minutes of expert consultation on picking the best headless solution with Next.js or Medusa + best practices + choosing headless + composable ecommerce platforms + architecture and HLD for custom Medusa.js solutions Pro Directus CMS Specialist ⚡ | Lead Medusa JS Developer | contentful cms , sanity cms , Headless Commerce Developer| Top Rated Directus CMS And Headless CMS Specialist 🏆 | Fullstack Developer 🚀 | MERN, Flutter, Strapi, Contentful ,, Agility CMS, DotCMS, Prismic, Storyblok | B2B SaaS Developer Swift, CommerceLayer, Medusa JS | Strapi CMS, Payload CMS, Media JS, Directus CMS I specialize in building headless commerce solutions, particularly with technologies like Next.js, Medusa.js, and Directus CMS,Payload cms ,strapi cms, With over six years of experience as a Senior Full Stack developer, I have a deep understanding of these tools and their application in the creation of open-source headless commerce projects. My expertise extends My JAM Stack: GPT-4o - Front-end: React.js, Next.js, Gatsby.js, Nuxt js, Remix - Back-end: Node.js, Express.js, Nest.js - Headless CMSs: Builder.io, Dato CMS, WordPress, Strapi, Contentull, Directus, Kontent ai Directuscms,buttercms,keystoneJS hygraph ,contentstack ,frontastic ,cosmicjs,agilitycms,lexascms,payload - Headless eCommerce: Shopify, WooCommerce, Snipcart, Swell, Commerce Layer,Medusa js,saleor commerce, chord, crystallize ,bigcommerce, foxy io,commercetools,vendure,commerce js,gumroad, - Online payments: Stripe, Braintree, Razorpay,paytm - Search: Algolia,type sense - Live Chat: Intercom, Chatbot, Zoho - Services integration: Make.com (Integramat) - Meeting Scheduling: Calendly - Google Docs - Airtable - tooljet My primary focus is on SaaS development and MVP development for startups. Over the years, I've specialized in various project types, including: Here's how our collaboration will work: First, we'll schedule an exploratory call to discuss your project in detail. If I am not the right fit for your needs, I'll provide free consulting and assist you in finding the best freelancer for the job. 🗓️ Once we've decided to proceed, I'll dive into extensive research and develop a comprehensive approach tailored specifically for your project. This includes selecting the most suitable technology stack, creating a detailed road map, breaking down the development into manageable modules, and establishing a transparent schedule. You will have full access to this plan for your input and revision. 📋 To ensure maximum transparency and convenience, I'll propose a payment structure with milestones, as well as a reporting schedule to keep you updated on the progress. 💰🗒️ Throughout the development process, I'll provide you with live results for immediate feedback. I firmly believe that a great product evolves through a flexible development approach, which embraces revisions, constructive criticism, and continuous improvements. Every line of code written by me and my team will undergo rigorous testing by a dedicated full-time professional tester. 👨‍💻🔍 Even after the project is delivered and the Upwork job is closed, I'll continue to offer free bug fixes, regardless of the elapsed time. 🐞🆓 5.1. As a bonus, I'm committed to the long-term success of your product. If you wish to keep the software updated and release new versions, I'll be more than happy to assist with that process. 🔄🚀 I’m a senior Full Stack developer with 6+ years of experience with [SKILLS] 📌 Front-End: Vue.js (Nuxt.js, Vuex) / TypeScript / PWA / Angular / React.js / JavaScript (ES6+, ESNext) 📌 Back-End: Node.js (NestJS, ExpressJS) / SQL & NoSQL databases,PostgresQL 📌 Management methodologies: Agile (Scrum, Kanban, Lean) & Waterfall 📌Frameworks: • / Angular / React / Redux/NextJS/Nuxt/Nest • MEAN stack (Angular / Node.js / Express.js / MongoDB ), MERN Stack 📌 Management tools: Jira, Trello, Asana, ClickUp 📌Low-code Development ( Low Code Dev ): Directus CMS,𝙎𝙩𝙧𝙖𝙥𝙞,𝘾𝙤𝙣𝙩𝙚𝙣𝙩𝙛𝙪𝙡,𝙎𝙖𝙣𝙞𝙩𝙮 ,𝘼𝙜𝙞𝙡𝙞𝙩𝙮 𝘾𝙈𝙎,𝘿𝙤𝙩𝘾𝙈𝙎,𝙋𝙧𝙞𝙨𝙢𝙞𝙘,𝙎𝙩𝙤𝙧𝙮𝙗𝙡𝙤𝙠 📌 App Development (Flutter,Dart.Firebase,Socket io) LLM & AI Frameworks: LLM: LlamaIndex, LangChain, FastChat, Text Generation Inference (TGI) LLM Fine-Tuning & Training: Axolotl, Alpaca-LoRA, QLoRA, DeepSpeed AI Automation & Workflow Orchestration: n8n, CrewAI, AutoGen, Haystack, OpenDevin AI Model Inference & Serving: vLLM, Triton Inference Server, Ray Serve, BentoML AI-Powered Data Processing: PandasAI, DataPrep, Dask, Modin AI Model Deployment: Hugging Face Transformers, MLflow, TorchServe, KServe AI Image & Video Processing: Diffusers, ComfyUI, ControlNet, OpenCV AI Kit AI Audio & Speech Processing: Whisper, OpenVoice, Coqui TTS, Piper AI for E-commerce: OpenAI API, Clerk.io, Vespa, Metaflow, Recombee, Milvus, Strapi AI, Spree AI, Syte AI Feel free to explore my portfolio at weframetech.com, Sambit 👨‍💼🤝

My UPWORK achievements : ✅Hours Logged: 3050+ ✅Delivered jobs: 40+ ( 98% JSS Top Rated ) ✅JSS: 98% with TOP RATED PLUS Badge. I am a Full stack developer with 7+ Years of experience in Web & Mobile application development. My experience included FrontEnd Developer and from last 6+ years, I'm individually taking eCommerce and web-based product development from scratch. I have Expertise in React Native, ReactJS, Next.js, Redux, Nodejs, Laravel, Storybook, SAAS, Shopify, WebRTC, MongoDB, AWSEC2, PWA, HTML5, CSS3, LESS, CSS, Bootstrap, MUI, Chakra UI, Tailwind CSS and Javascript. Summary of Skills:- - Proficient to working in Strapi, ExpressJS. - Experience with configuration, customization, and development of an e-commerce platform - Experience with JavaScript frameworks, Javascript, and AJAX - Proficient with the latest programming languages, web development tools and platforms and other utility applications - Ability to work on large scale projects - In-depth knowledge of security protocols, secure payment gateways and other safety components applicable for e-trading websites - Strong knowledge of Content Management System, DBMS Along with this, I have excellent communication skills and project management skills.

🤝I'm a skilled full stack developer with experience in a variety of technologies, especially JavaScript frameworks. I work with ReactJS, NodeJS, VueJS, NextJS, and ExpressJS. I focus on paying attention to every detail and making sure my work is of the highest quality. My goal is always to provide reliable, efficient solutions that meet or exceed what my clients expect. Why Choose Me? 🟢 I have hands-on experience in building projects from scratch as well as maintaining and enhancing existing ones. No matter the stage of your project, I'm here to help it succeed. 🟢 Need someone who can work with your schedule? I'm flexible with any time zones 🟢 Your success is my top priority. I love tackling challenges and finding innovative solutions to meet your project's needs. 🟢 I believe in building great working relationships. My approach is professional yet friendly, making collaboration enjoyable and productive. 🦾 Key Skills: Front-end: JavaScript, TypeScript, React, ReactQuery, Redux, Redux Toolkit, Bootstrap, npm, CSS3 (Sass), HTML5 (Flexbox, Grid), React Native Expo, Vue (courses and pet project) Design: Figma, pixel-perfect, Material UI, Tailwind, CSS Modules, Styled-Components Back-end: Next.js, Node.js, Express, PHP, Laravel Databases: MySQL, Supabase, MongoDB Methodologies and tools: git (GitHub), GitLab Cloud: Amazon Web Services (EC2) Hosting: Vercel, GitHub pages, Heroku, Netlify, Railway CMS: Payload 🤙 Let's Work Together!