🔥 Upwork's Top Rated Plus Developer ⭐⭐⭐⭐⭐ Expert-vetted 🚀 | 2,200+ High-Quality Hours ⏰ | Crafting Scalable Solutions Since 2017 🎉 Why Work With Me? ✨ Commitment: I'm all about meeting deadlines and making your project a success. On time, every time! ✨ Quality Assurance: Diligent and meticulous, I ensure top-notch project output every time. ✨ Clear Communication: I'm not just a coder; I'm a communicator. Clear, responsive, and always here for you! ✨ Simplicity Matters: I keep things simple, efficient, and effective. Here's Why You Should Consider Working With Me: 🚀 Experience Matters: With 6+ years in tech, I bring a wealth of knowledge in software and AI technology, offering strategic guidance for your business's success. 💻 Full-Stack Expertise: A bias for action and a commitment to excellence define my full-stack skills. I ensure every project is of the highest quality. 🗣️ Communication Maestro: Whether it's Slack, Skype, MS Teams, or email, I'm your communication virtuoso. Questions, updates, or just a chat—I'm always here. Client Testimonials: 🏆 "Harpalsinh is a very responsive and regular person. He can get the things done. I will definitely recommend a cooperative freelancer like him." 🏆 "Kudos to Harpalsinh and team for being a deadline superheros. They not only met every deadline but also made sure our project executed smoothly. Communication was on point. They are truly tech genius. I highly recommend them." 🏆 "Harpalsinh was a steady contributor when I hired him for a special project. He is very responsive. Overall, we are very satisfied with his output and will stay in touch with him in future projects. Good luck!." Services I Offer: ✅ Complex Systems Architecture, ERP, CRM, and Chatbot Development ✅Business Process Automation ✅ API, Full-Stack Web, and Mobile App Development ✅ Custom Enterprise Portals, Order and Inventory Management Systems, Dashboards, Analytics, and Reporting Systems ✅ SaaS Platforms, Marketplaces, CMS Websites ✅ Strategic Guidance and Technical Leadership for Startup Teams ✅ Generative AI Implementation (Open AI) ✅ Data Engineering (Hadoop, Big Data, Data Modeling, Data Pipelines, Workflow Management) My Approach for Successful Project Outcomes: 1️⃣ Understand Goals: Dive deep into customer goals and visions. 2️⃣ Suggest Solutions: Provide technical solutions aligned with business objectives. 3️⃣ Development: Craft technical requirements and design, then implement the solution. 4️⃣ Hand-off & Support: Provide hand-off, training, and ongoing support. Tech Stack: 🛠️ Tech: React, Next/Nuxt, Angular, NodeJS, GraphQL, .NET (C#), Python/Django, TypeScript, Redux, JavaScript, PHP, WordPress, Laravel, Tailwind CSS, HTML5/CSS3 📊 Database: MS SQL, MongoDB, MySQL, PostgreSQL, ChromaDB, Redis, MariaDB 🌐 Serverless: Functions ☁️ Cloud: Azure, AWS, Google Cloud Platform ⚙️ DevOps: GitHub, Azure DevOps, CI/CD, Docker, Jenkins, Selenium, Kubernetes, CircleCI, Bitbucket 🧠 Generative AI: Open AI, ChatGPT, Dall.E.3, Stable Diffusion, Llama, Lambda, Hugging Face. LangChain 🤖 Agentic AI: LangChain, LangGraph, AutoGen, Haystack Agents, AutoGPT, Meta Agents, Chain-of-Thought Reasoning, Multi-Agent Orchestration, Vector Databases (Pinecone, Weaviate, Milvus) PMO Tools: 🚀 Jira, Trello, ClickUp, Asana, Notion, Zoho Projects ⏳ In a nutshell, let's breathe life into your ideas and turn your vision into reality! If you're seeking a CTO or startup tech advisor with strategic guidance, technical leadership, and excellent development skills, reach out! Click the green 🟩Invite to Job🟩 button and let's kick off your next project! Excited to hear from you soon. Thank You 🙏🏻

Hello, I am an experienced Full-Stack Developer with over 12 years in the software industry. Throughout my career, I have contributed to projects across a diverse range of industries, including E-commerce, Wellness & Fitness, EdTech, Social Media, Hospitality, Retail, Fintech, Media & Entertainment, and Refineries, among others. Here’s a brief overview of my expertise: 🔹 Backend Development: Java, Spring Boot, JPA, Spring Security, Batch Processing, REST APIs, Microservices Architecture. 🔹 Frontend Development: HTML5, CSS3, JavaScript, Angular, React.js. 🔹 Databases: PostgreSQL, MySQL, Derby, MongoDB, DynamoDB. 🔹 AWS & Cloud Services: EC2, VPC, RDS, S3, Elastic Beanstalk, Cognito, SES, CloudFormation, ECS, ELB. 🔹 Virtualization & DevOps: Docker, Docker Compose, CI/CD Pipelines, Jenkins, CircleCI, CodePipeline, Codemagic. 🔹 AI/ML & Intelligent Systems: - Generative AI Integration - OpenAI APIs / LLM Integration - AI Chatbot Development - Machine Learning Model Integration - Prompt Engineering - AI-powered Automation Solutions - NLP (Natural Language Processing) - Python for AI/ML Workflows 🔹 Development Practices: Agile Methodologies, System Design, Scalable Architecture, Performance Optimization, Secure Application Development. 📱 Full Stack Developer 🌐 Backend Developer 💻 Frontend Developer ✅ On Time Delivery ✅ Quick Response ✅ Always Online ✅ Quality Work ✅ Client Satisfaction I have had the privilege of working on a variety of solutions and am comfortable handling both existing and new projects. I have had the opportunity to assist numerous clients in achieving their business goals, and I would be delighted to support you in the same way. Thank you for taking the time to visit my profile. Feel free to reach out—whether you’d like to discuss a project, share ideas, or simply connect. I would be delighted to collaborate and explore how I can support your initiatives. Feel free to 𝗗𝗠 𝗺𝗲 𝗼𝗿 𝗶𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 to your project on Upwork.

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

I help businesses build high-performing, scalable, and conversion-focused digital solutions using Shopify, WordPress, and modern full-stack technologies. With 13+ years of experience, I specialise in creating fast, secure, and user-friendly websites, eCommerce stores, SaaS platforms, and custom web applications that not only look great but also deliver real business growth. ✨ 13+ Years Experience | 🚀 122+ Projects | ✅ 100% Job Success | ⭐⭐⭐⭐⭐ Client Rated 💼 𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐈𝐧𝐜𝐥𝐮𝐝𝐞𝐬 🔧 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 & 𝗪𝗼𝗼𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 💎 Custom WordPress theme development 💎 Elementor, Divi, Gutenberg, WPBakery, Avada 💎 WooCommerce setup & optimization 💎 Plugin customization & feature development 💎 Website migration & hosting setup 💎 API integrations & third-party tools 💎 Technical SEO & Core Web Vitals optimisation 🛒 𝗦𝗵𝗼𝗽𝗶𝗳𝘆 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 ✨ Shopify store setup & launch ✨ Custom Shopify theme development (Liquid) ✨ Shopify 2.0 & dynamic sections ✨ Shopify SEO & speed optimization ✨ Ongoing support & bug fixing 🧰 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐓𝐨𝐨𝐥𝐬 ✅ Shopify, WordPress, WooCommerce ✅ MongoDB, Express.js, Angular, Node.js ✅ PHP, Laravel, CodeIgniter ✅ HTML5, CSS3, Bootstrap, Tailwind ✅ JavaScript, jQuery ✅ REST APIs, JSON, XML ✅ Adobe XD, PSD → Development 🚀 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮’𝐥𝐥 𝐆𝐞𝐭 ✔️ Fast, secure & scalable solutions ✔️ SEO-friendly & mobile-responsive development ✔️ Clean architecture & optimized performance ✔️ Clear communication & regular updates ✔️ Long-term maintenance & support 🌟 𝐖𝐡𝐚𝐭 𝐌𝐚𝐤𝐞𝐬 𝐌𝐞 𝐃𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 ✔️ 13+ years of real hands-on development experience ✔️ Strong expertise across both CMS & custom applications ✔️ Ability to handle frontend + backend + integrations ✔️ Business-focused approach, not just coding ✔️ Trusted by clients across multiple industries 🤝 𝐋𝐞𝐭’𝐬 𝐖𝐨𝐫𝐤 𝐓𝐨𝐠𝐞𝐭𝐡𝐞𝐫 Whether you need a Shopify store, WordPress website, SaaS platform, API integration, or full custom application, I’d be happy to help bring your ideas to life. 👉 Feel free to invite me — I’d love to discuss your project. - Ketan Vaghasiya

I’m a Top Rated Plus fullstack developer with 14+ years of experience delivering enterprise-grade SaaS platforms, API integrations, and legacy migrations for clients across North America and Europe. With 23,000+ Upwork hours and brands like Microsoft, Interpol, and Oklahoma University in my portfolio, I focus on building solutions that are scalable, secure, and maintainable. Core Expertise: .NET Core & ASP.NET Core (1–9) : REST APIs, multi-tenant SaaS, domain-driven design Frontend: Blazor, Angular, React Other .Net SAAS frameworks : Asp.net Zero, Asp.net Boilerplate, ABP commercial. Cloud & DevOps: Azure App Services, Azure Functions, Azure SQL, Azure DevOps CI/CD Integrations: Stripe, Twilio, HubSpot, Xero, QuickBooks, Zoho CRM, Zoho Books, Zoho Flow, 50+ APIs AI & n8n Automation: ChatGPT/OpenAI, LLM fine-tuning, AI-driven features, Cursor Migrations: Legacy ASP.NET MVC → Modern .NET Core architectures Databases: SQL Server, PostgreSQL, NoSQL Patterns & Principles: Microservices, SOLID, Clean Architecture Why Agencies Choose Me: Architect’s Mindset: I map the entire platform before writing code to avoid costly rewrites. Fast Ramp-Up: I can read any codebase and quickly identify dependencies & risks. Proven Results: Reduced release cycles by 40% for a U.S. healthcare SaaS; cut bugs by 60% post-migration. Client-Ready Communication: Fluent English, Upwork Verified, trained Scrum Master. Selected Clients: Microsoft, Interpol, Oklahoma University, Saudi Aramco, Mary Kay Cosmetics, Onshift, SimpleTix, Kansas Wesleyan University, Steve Madden, MIDF Malaysia, EPF Malaysia, YourDoctorsOnline, Wellnicity, Startupsuite, Retail Ingenuity. Let’s talk if you need a developer who can own the full stack, think like an architect, and deliver results that move your business forward.

Senior Full-Stack Engineer who ships production web applications, CMS websites, mobile apps, and AI-powered solutions that businesses depend on every day. Top Rated Plus with 100% Job Success, 16,500+ hours on Upwork, and a 5-star rating across 8+ years of client work. I work directly with startups, agencies, and businesses across the US, UK & Europe, delivering production-ready solutions with clear communication, attention to detail, and minimal supervision. 🧠 AI-Powered Applications I integrate Claude, OpenAI, and modern LLMs into production systems to automate workflows, enhance customer experiences, and simplify complex business processes. My work includes RAG pipelines, AI agents, document processing, and voice AI using tools like Vapi and Retell. I use Claude Code and Cursor daily to accelerate development while maintaining production-quality code. 🌐 Full-Stack Web Applications I build scalable applications using React, Next.js, TypeScript, Node.js, PHP, Laravel, NestJS, and Python. My experience spans SaaS platforms, MVPs, healthcare, fintech, ERP, CRM, e-commerce, POS, inventory management, government platforms, and internal business systems. Every application is designed with scalability, maintainability, and long-term growth in mind. 🖥️ CMS Development & Technical SEO I work extensively with WordPress, Shopify, WooCommerce, Wix, and custom PHP-based CMS solutions. Whether it's publishing new pages, customizing themes, implementing design updates, or fixing layout issues, I ensure every website is responsive, SEO-friendly, and thoroughly tested before deployment. Typical work includes: ⇁ WordPress & Shopify theme customization ⇁ Elementor, Gutenberg, Divi, and page builder updates ⇁ Landing pages, service pages, blogs, and product pages ⇁ HTML, CSS, JavaScript, and PHP customizations ⇁ Technical SEO implementation (meta data, headings, schema, internal linking, image optimization) ⇁ Mobile responsiveness and cross-browser compatibility ⇁ Website QA, debugging, and performance improvements 📱 React Native Mobile Apps I develop cross-platform mobile applications using React Native and Expo, delivering production-ready apps published on both the App Store and Google Play for healthcare, sports, and business solutions. ⚙️ Laravel Backend Systems I build secure backend systems for SaaS products, fintech platforms, and business applications. My experience includes multi-tenant architecture, Stripe billing, webhook processing, queue management with Horizon, Livewire, Filament dashboards, REST APIs, authentication, and scalable database design. 🤖 Automation & Integrations I create reliable automation workflows using n8n and Make, integrating CRMs, third-party APIs, payment gateways, and business tools. I also build browser automation using Playwright for platforms without public APIs, ensuring robust error handling and long-term reliability. Core Stack CMS: WordPress, Shopify, WooCommerce, Wix, Elementor, Gutenberg Frontend: React, Next.js, TypeScript, JavaScript, HTML, CSS, Tailwind CSS Backend: Node.js, NestJS, PHP, Laravel, Python, FastAPI AI: Claude, OpenAI, RAG Pipelines, AI Agents, Voice AI, Vapi, Retell, n8n, Make Mobile: React Native, Expo Databases: PostgreSQL, MySQL, Supabase, MongoDB, Redis Cloud & DevOps: AWS (Lambda, EC2, RDS, S3), Docker, GitHub Actions, CI/CD, DigitalOcean How I Work I believe clean execution is just as important as clean code. Before any feature or website update is delivered, I verify functionality, responsiveness, layouts, links, forms, SEO elements, and overall user experience across desktop and mobile devices. I communicate proactively, identify potential issues early, and take ownership from implementation through final QA, ensuring every project is ready for production rather than simply completed. If you're looking for a developer who can build modern applications, maintain business-critical websites, integrate AI where it adds value, and consistently deliver high-quality work, I'd be happy to discuss your project. Keywords Full-Stack Developer • AI Developer • React Developer • Next.js • Node.js • PHP • Laravel • WordPress • Shopify • WooCommerce • Elementor • CMS Development • Website QA • Technical SEO • Theme Customization • React Native • OpenAI API • Claude AI • RAG Systems • AI Automation • n8n • Make • API Integration • SaaS Development • AWS • Docker • CI/CD • Mobile App Development

✅Instant Availability🏆100% Job Success🥇Top Rated Plus🏆13+ years of experience Hello,🖐️ I'm a certified Magento 2 developer with around 12 years of experience in Ecommerce development. Apart from Magento, I have strong experience with WooCoomerce, Shopify, and Odoo. I am proficient with: ☑️Multi-vendor Marketplace Development ☑️Magento 2 Custom Website Development ☑️Magento 2 Extensions & Theme Development ☑️Magento Security Patch Install ☑️Magento 2 version upgrade ☑️Woocommerce Custom Theme Development ☑️WordPress/Woocommerce plugin customization ☑️Shopify Theme Development ☑️Shopify App Development ☑️Install and Configure any Shopify Theme Template ☑️Integration of different Magento 2 extensions ☑️B2B eCommerce Development ☑️AI Integration services ☑️ChatGPT Integration Services ☑️Odoo customization services ☑️Odoo Website design ☑️Odoo E-commerce shops ☑️Odoo CRMs ☑️Odoo Modules ☑️OroCommerce ☑️Integration with payment gateways like Stripe, PayPal, Amazon Pay, CCAvenue, Square Payments, Authorize.Net, and other well-known payment gateways. ☑️Integrations with Inventory Management systems ☑️Integrations with CRM, POS, and ERPs ☑️Integrations with Shipping and Logistic providers ☑️Setup Google Shopping with Magento 2 ☑️Odoo Technical and Functional Support ☑️Odoo Manufacturing Implementation ☑️Odoo Sales & CRM Implementation ☑️Odoo Inventory Management Implementation Benefits of hiring me: ✔️E-commerce/Retail expert and consultant ✔️Flexible Hiring Models (Ongoing/Weekly/Monthly/Per Project) ✔️24 x 7 Technical Support ✔️Quality and Tested output ✔️Cross-domain expertise My strengths are: I can quickly grasp new technologies, am result-oriented, and love working on challenging tasks. I also carry excellent project management skills & have a good command of tools like Jira, Asana, Trello, etc. I value the client's investment and do provide them with the best possible solutions in a cost-effective manner which helps them to grow their online business. Rest assured, your work privacy is paramount, and you'll receive regular progress reports. While deadlines are a priority, quality remains uncompromised. Count on me for all your development and design needs, with prompt support for any queries. Invite me and discuss your requirements.📩 🛍️Ready to build your online store?🛍️🛒Let's connect!🚀🤝

I help businesses to build and maintain visually stunning, enterprise grade, high performant, high converting SaaS and e-commerce applications. ✅ Shopify Plus custom checkout using Shopify Functions in high performant Rust language ✅ Shopify Theme revamp focusing CRO & performance | Liquid ✅ High performant Shopify Headless Hydrogen storefronts ✅ Custom SaaS using Angular | React | Node.js Looking for challenging projects. Thank you.

Hi 👋 I’m Konstantin, COO at Lember. For more than 10 years, I’ve worked with startups and established companies across North America and Europe. During that time, I’ve been involved in software delivery, team growth, and long-term client partnerships across a wide range of technology initiatives. At Lember, we work across AI development, AI integration, software development, SaaS development, full-stack development, web development, technical consulting, and web app audits. A large part of my work involves helping clients evaluate technical direction, plan development efforts, expand engineering capacity, and navigate complex delivery challenges. 🖥️ WHAT WE WORK ON: ☑️ Web applications, internal tools, and custom software ☑️ SaaS platforms, both new and existing ☑️ Marketplaces, booking and service platforms ☑️ Customer portals and admin panels with analytics ☑️ MVPs and prototypes for early-stage products and fundraising ☑️ AI integrations into products and workflows (RAG, MCP, AI agents) ☑️ Integrations between systems, APIs and third-party tools ☑️ Payment, billing and subscription systems ☑️ Cloud infrastructure and deployment ☑️ Improving, stabilizing and completing systems already in use 🚀 AREAS WE COVER: ☑️ Custom software development and full-stack development ☑️ SaaS development and SaaS product modernization ☑️ Legacy system modernization and system rework ☑️ Cloud migration and cloud infrastructure (AWS, GCP, Microsoft Azure) ☑️ AI integration into products and systems ☑️ Staff augmentation and dedicated engineering support 🤖 AI WE WORK ON: ☑️ AI assistants and chatbots for products and internal tools ☑️ Connecting AI to internal data and documents (RAG) ☑️ Workflow automation and decision support ☑️ AI integration into systems already in use 🛠️ TECHNOLOGIES WE WORK WITH: ☑️ Frontend: React, Next.js, Angular, Vue.js ☑️ Backend: Node.js (NestJS, Express), .NET (C# / ASP.NET), PHP (Laravel, Symfony) ☑️ APIs and integrations: REST, GraphQL ☑️ Databases: PostgreSQL, MySQL, MongoDB ☑️ Cloud: AWS, Microsoft Azure, Google Cloud Some of our clients have been with us for over 8 years and some of our engineers have been with us from the beginning. We take that trust seriously and work to earn it on every project. If you’re starting a new product or working with an existing system that’s no longer keeping pace, send a short overview and we’ll take a look and go through it with you 📨

I build AI automation and custom software that runs in production, not in demos. Over 14 years I have delivered 157+ projects on Upwork with a 100% Job Success Score, mostly for startups, SMBs, and enterprises modernizing legacy systems. What I do: - AI agents and copilots built on Microsoft Copilot Studio and Azure OpenAI - Workflow and business process automation with Power Automate - Custom SaaS and enterprise apps on .NET, Azure, and React - Legacy system modernization and cloud migration - Dynamics 365 and Power Platform integrations I am a Microsoft Certified Solutions Partner, certified in AZ-400 (DevOps) and Azure development. That matters when a project needs someone who can architect the whole thing, not just write code. Most of my clients come back. One has worked with me and the QServices team for nearly five years. I keep communication tight, flag risks early, and ship on schedule. If you're automating operations, building an AI product, or modernizing an aging system, send me the details and I'll give you a straight read on the best approach.