🚀 Welcome to My Upwork Profile! I’m a Top-Rated Senior UI & Full-Stack Engineer with over 1300+ hours of successful Upwork projects and a decade of experience in front-end and full-stack development. Originating from Sri Lanka, I specialize in crafting high-performance web applications with cutting-edge technologies. 💡 My Expertise: ✔ Front-End Development – HTML5, CSS3, SCSS, SASS, LESS, Tailwind CSS, Bootstrap 4/5, Responsive Design, BEM Methodology ✔CMS – Wordpress, Framer ✔ JavaScript Ecosystem – Angular (4+), AngularJS, React/Redux, Next.js, Redux, Zustand, RxJS, TypeScript, ES6, WebSocket, REST APIs ✔ Back-End Development – Node.js, Express.js, Firebase, MongoDB, PostgreSQL ✔ Generative AI & AI Integration – build,io, OpenAI (ChatGPT), LangChain, LangGraph ✔ Real-Time & Cloud Services – WebSocket, Firebase, AWS 🔥 What I Bring to the Table: 🔹 Full-Cycle Development – From ideation to complex UI applications 🔹 Seamless AI Integration – Enhancing user experiences with Generative AI 🔹 Scalable & Performance-Optimized Solutions – Ensuring speed, security, and responsiveness 🔹 Team Collaboration & Leadership – Supporting teams and mentoring developers 📩 Let’s Build Something Amazing! If you’re looking for a dedicated developer to bring your project to life with modern UI, full-stack expertise, and AI-driven solutions, let’s connect!

I help Shopify store owners fix theme bugs, improve store speed, and optimize user experience to increase conversions and revenue—without unnecessary apps or risky shortcuts. With 7+ years of hands-on Shopify experience and Top Rated Plus status on Upwork, I specialize in Shopify 2.0 theme customization, Liquid development, performance optimization, and conversion-focused UX improvements using clean, scalable code. What I Do Best • Shopify 2.0 theme customization (Dawn & premium themes) • Theme bug fixes (layout, cart, checkout, mobile & responsive issues) • Shopify speed optimization (Core Web Vitals, PageSpeed Insights) • Conversion-focused UX improvements (product pages, CTAs, trust elements) • Custom Liquid sections, blocks, and features • CSS & JavaScript fixes and UI enhancements • Safe app integration without breaking existing functionality CRO-Focused Shopify Expertise • Reducing friction in cart & checkout flow • Improving mobile usability and add-to-cart experience • Speed improvements that lower bounce rate • UX refinements that improve conversion rate • Performance optimization aligned with CRO best practices Core Expertise & Services • Shopify theme bug fixes • Mobile & responsive UX issues • Cart & checkout flow improvements (conversion-focused) • Dawn theme customization • Shopify speed optimization • Core Web Vitals optimization • Conversion-focused performance improvements I work closely with store owners and teams to deliver practical, data-informed improvements that enhance usability, speed, and conversions—focused on results, not surface-level changes. If your Shopify store is slow, underperforming, or needs precise theme customization with a CRO mindset, I’d be happy to help. Specializing in Shopify theme customization, speed optimization, and conversion-focused UX (CRO). Regards, Sandeep Kumar

Running a ColdFusion or legacy system that is slow, fragile, or expensive to maintain? I help companies modernize and migrate legacy applications into fast, scalable platforms using Lucee, Node.js, and Laravel. Over the last 20+ years I have shipped 80+ projects on Upwork with a 100% Job Success Score and Top Rated status, focused on the kind of legacy systems most developers will not touch. I work best with companies dealing with: • Aging ColdFusion applications that are hard to maintain or extend • Performance and scaling problems on high-traffic platforms • Migrations from ColdFusion to Lucee, Node.js, or Laravel • Security gaps, broken integrations, or unstable production environments • Legacy codebases that need to be rebuilt for the next 5–10 years What I do: • Legacy system audits and modernization roadmaps • ColdFusion to Lucee migrations and full stack rebuilds • Web application development in Node.js, Laravel, and PHP • Performance optimization, refactoring, and database tuning • API integration, AI features, and PostgreSQL / MySQL data work Recent work includes: • Migrating a high-traffic ColdFusion platform to Lucee with zero downtime cutover • Rebuilding a legacy CF application backend in Node.js for a SaaS team • Refactoring a performance-critical module that was timing out under load • Adding AI-driven features into an existing legacy product without a full rewrite Credentials: Adobe Certified ColdFusion Developer. Top Rated on Upwork. 100% JSS across 80+ jobs. I personally lead every engagement, scope the work, and stay involved through delivery. When projects need more hands, I bring in a trusted team I have worked with for years, but you always work directly with me. Send me a message with a short description of your current system, what is breaking or slowing you down, and what success looks like. I will reply with a clear assessment and a recommended path forward, usually within a few hours. #ColdFusion #PHPDeveloper #LaravelDeveloper #FullStackDeveloper #BackendDeveloper #FrontendDeveloper #WebApplicationDeveloper #AIIntegration #MachineLearning #AIDeveloper #AutomationDevelopment #AIWorkflow #CustomSoftwareDevelopment #WebDevelopment #EnterpriseApplications #LegacySystemMigration #APIIntegration #RemoteDeveloper #AvailableForHire #UpworkTopRated #ExperiencedFreelancer #TechConsultant #Laravel #PHP #ColdFusion #AdobeColdFusion #coldfusion #Fullstackdeveloper

I’m a developer with experience in building websites for small and medium sized businesses. - I’m experienced in HTML5 and CSS3, React/NextJs, Tailwindcss, NodeJs, WordPress, PHP, Django, Vanilla Javascript, Graphic design SEO, Data Analytics, Hosting & Setup - I’ll fully your project from start to finish - Regular communication is really important to me, so let’s keep in touch!”

I am a Full-Stack & MERN Stack Developer with 7+ years of experience & 100% Job Success Score. I build scalable web applications using MERN Stack and Next.js. I help startups and businesses turn ideas into secure, production-ready products with clean architecture and user-focused design. I turn ideas into clean, secure, and scalable web applications aligned with your business goals. From architecture to deployment, I own the full stack and build it right the first time. 👋 Hi, I’m Abu Bakar, a Senior Full-Stack Web Developer specializing in MERN Stack (MongoDB, Express.js, React, Node.js), Next.js, Express.js, API Development, Laravel and WordPress. I help startups, SaaS, and e-commerce businesses build secure, scalable, high-performance web applications, from MVPs and custom APIs to production-ready platforms, focused on clean code, clear communication, and long-term maintainability. 🚀 What I Can Do for You • Build full-stack web applications using MERN / Laravel • Create modern, responsive UIs with React, Next.js, Tailwind, Shadcn UI • Develop secure, scalable backends with Node.js, Express, NestJS • Design and optimize databases (MongoDB, PostgreSQL, MySQL) • Build and integrate REST APIs & third-party services • Develop SaaS platforms, dashboards, and role-based systems • Add real-time features (chat, notifications, live updates) • Fix bugs, refactor code, and improve performance • Deploy apps using AWS, Vercel, Docker, CI/CD 🛠️ Tech Stack & Expertise • MERN Stack Development • Full-Stack Web Development • Frontend Development (React.js, Next.js) • Backend Development (Node.js, Express.js, Laravel) • API Development & Integration • RESTful & GraphQL APIs • Database Design & Management • Authentication & Authorization • SaaS Application Development • Admin Dashboards & Role-Based Systems • E-commerce Application Development • Payment Gateway Integrations • Real-Time Application Development • Performance Optimization • Cloud Deployment & Hosting • DevOps & CI/CD Pipelines • Docker & Containerization • AWS & Cloud Services • Bug Fixing & Code Refactoring • Scalable & Secure Web Architecture ⭐ Why Choose Me • 8+ years of real-world full-stack experience building production-ready web applications • Clean, maintainable, and scalable code focused on long-term success, not quick fixes • Expert in MERN & React/Next.js (SSR, SSG, ISR) with performance and SEO in mind • Business-focused mindset, I build solutions that improve performance and user engagement • Strong communication & ownership with regular updates and proactive problem-solving • On-time delivery and comfortable working independently or within teams 💬 Let’s Build Something Great If you’re looking for a reliable Full Stack Developer who understands both technology and business goals, I’d be happy to help. 📩 Available to chat anytime — just send a message and let’s discuss your project. 🔑 Please use these keywords to find me: Full Stack Developer, MERN Stack Developer, React.js Developer, Next.js Developer, Node.js Developer, JavaScript Developer, TypeScript Developer, Laravel Developer, PHP Developer, Backend Developer, Frontend Developer, REST API Developer, SaaS Application Developer, Custom Web Application Development, MVP Development, Admin Dashboard Developer, SaaS Dashboard Development, E-commerce Website Developer, WooCommerce Developer, WordPress Developer, Secure Backend Development, Database Design & Management, MongoDB Developer, MySQL, PostgreSQL, Performance Optimization, Scalable Web Application Architecture, Authentication & Authorization (JWT, OAuth), API Integration, Cloud Deployment (AWS, Vercel, Docker), CI/CD Pipeline Setup, Clean Code & Best Practices, Startup & Business Web Solutions, Upwork Full Stack Developer

Looking for a Top-Rated Senior Front-End Developer and Webflow Expert? You’re in the right place :) "Incredible to work with! Very attentive to detail, has a great eye for design, and excels at development. Ensures pixel-perfect design-to-development translation. Highly recommended, with high standards in communication, design, and development!" Top-Rated Plus Freelancer +6 Years of Front-End Development Experience ~4 Years of Dedicated Webflow Expertise UI/UX & Pixel-Perfect Translation Specialist I help brands convey their value to potential clients through robust front-end architectures and high-end website development. With over 6 years of deep front-end coding experience and 4 years specializing in Webflow, I don't just use a visual builder; I bring a solid technical foundation to every project. Whether you need a flawlessly converted Webflow site, complex custom-coded animations, or a fully responsive web application, I bridge the gap between creative UI/UX design and flawless technical execution. My goal is to deliver pixel-perfect, highly performant digital experiences that build trust with your audience. Will be glad to talk more about your specific situation and see how I can help. Drop me a line or invite me to your project and let's do something great together! See you soon :) My Skillset Includes: Front-End Engineering (6+ Years): • HTML5, CSS3, SCSS • JavaScript (ES6+) • React.js & Next.js • Advanced Custom Animations (GSAP, Three.js) Webflow Expertise (~4 Years): • Figma/XD/Image/PDF to Webflow Conversion • Webflow CMS Customization & Architecture • Webflow Complex Interactions & Animations • Webflow Responsive Design & Bug Fixing UI/UX & Design Tools: • UI Development & Pixel-Perfect Translation • Figma • Adobe Illustrator & Photoshop

I turn messy environmental, agricultural and geospatial data into decisions. Not just maps and shapefiles, the forecast, the dashboard and the answer your team can act on. I am a Data Scientist and Forest Engineer with 10+ years of experience. I currently lead the Data Intelligence area for the Planning Advisory Department at IDR-Paraná, where my pipelines support 399 municipalities and inform an agricultural and forestry sector worth billions. In practice that means I do four things most GIS freelancers do not do together: Geospatial data engineering. Production Python + PostGIS pipelines that pull multi-source data (satellite, census, trade, land prices, field data) into clean, reproducible datasets. Scheduled and tested with GitHub Actions, not one-off scripts. Machine learning on spatial data. scikit-learn and PyTorch models for time-series forecasting, clustering and segmentation, and collaborative filtering. The “what does this mean and what happens next” layer, not just the map. Decision dashboards. Interactive Plotly/Dash and Power BI dashboards that stakeholders actually use to decide. I built Datageo Paraná, a public platform with 10 interactive dashboards spanning 30+ years of data and 400+ products (VBP, census, ComexStat, employment, land prices, forestry prices). Domain depth. Forestry, agribusiness, sustainability and public-sector analytics. I have led FSC- and NR-31-compliant operations across multi-million-hectare projects, so I understand the data and the decisions behind it. What you get when you hire me: a clear scope up front, fast and direct communication, a documented methodology, original analysis (never recycled or plagiarized), and a full handoff of the maps, the validated pipeline and the code. You own everything at the end. Tools: Python, PostGIS / PostgreSQL, QGIS, scikit-learn, PyTorch, Plotly/Dash, Power BI, Supabase, GitHub Actions, GDAL/GeoPandas/Shapely/rasterio, SQL. Good fit if you need: satellite / remote-sensing analysis, geospatial web scraping and data acquisition, spatial data pipelines, forecasting or segmentation on geographic data, interactive geo dashboards, or forestry / agribusiness / environmental decision analytics. If you have geographic data and a decision to make, message me. I will tell you honestly whether I am the right fit and what the smallest useful first step looks like.

Looking for a full stack developer to rush through a hard 'DEADLINE' or 'build' a SaaS Application that solves a complex business problem? If answer to any of that is a 'Yes'; then you definitely got directed to the correct profile on Upwork. 9 years on Upwork & as an Independent contractor - my stats are: - 20,000+ Hours of hands on work on production apps. - 100% 5 Star Feedback for 40 Projects on Upwork & 20 Enterprise companies - Architecture - Micro Frontend Architecture, Monolith, Progressive Web App, Offline Web Apps - Frontend Frameworks - React, NextJs, Angular, Vanilla Websites (HTML, CSS, JS) - Backend using Java, Node.js, Spring Boot, Hibernate, NoSQL (MongoDB, Firebase, IndexedDB etc), SQL (MySQL, PostGres, Supabase CMS etc) - Payments (Stripe, Local Payment Gateway, Wallet, Wire Transfer etc) - Hired for: Solution Architect, Frontend Developer, Frontend Architect, Full Stack Developer

Welcome to my little corner of the internet! I build AI-powered systems and scalable SaaS platforms that automate workflows, reduce manual work, and improve business efficiency. Over the past 8+ years, I’ve helped startups and businesses develop high-performance applications across healthcare, automation, and real-time systems. What I can help you with: • AI agents & LLM integrations (GPT-4, Claude, LangChain) • Workflow automation (Twilio, APIs, backend systems) • SaaS platforms (multi-tenant, subscriptions, dashboards) • Healthcare systems (HIPAA-compliant solutions) • Data pipelines & intelligent decision systems • Real-time analytics platforms for probability modeling and decision support Technical Proficiencies: • Python, Node.js, TypeScript, PHP • Django, FastAPI, Laravel, Next.js, React, React Native, Vue • AWS (Lambda, S3, EC2), Supabase, Firebase • Redis, RabbitMQ, MongoDB, SQL • AI/LLMs, Vector DBs (Pinecone) Recent Work: • AI Receptionist & Automation System: Built Twilio-powered AI workflows to handle calls, messages, and bookings, fully integrated with backend CRM. • Healthcare SaaS Platform: Developed HIPAA-compliant multi-tenant platform with real-time tracking, dashboards, and subscription billing. • AI-Powered Analytics Platform: Delivered full-stack React + Firebase platform with real-time data pipelines and predictive modeling for intelligent decision-making. • Scalable Backend Systems: Designed and implemented robust architectures to handle high-traffic applications and data-intensive workflows. • Data Pipelines & AI Support Systems: Streamlined ETL pipelines and implemented AI-powered support systems for faster insights and automation. Why clients work with me: • Top Rated👍 freelancer with 8+ years of experience. • I focus on business outcomes, not just code • Strong experience in AI + automation (high ROI projects) • Clean, scalable, production-ready architecture • Fast communication & reliable delivery If you're looking to build an AI-driven system, automate your workflow, or scale your platform - let’s talk. Cheers. Michael ========================================================================== updated at 03/27/2026

Need a developer who can ship fast, clean, production-ready apps—and also automate the boring work with AI? I’m Francis, a Top Rated developer and project lead with 8+ years (going on 9) of experience and 1,100+ Upwork hours, having delivered 50+ projects (including Fortune 500 collaborations) with a 100% on‑time track record. I help clients with: Modern Web Apps (Full Stack) React / Next.js, Vue, or vanilla JS frontends Node.js / PHP (Laravel / WordPress) / Python backends REST APIs, authentication, dashboards, admin tools High-Performing WordPress & E‑Commerce Custom themes & plugins, Gutenberg blocks, performance optimization WooCommerce & Shopify builds, migrations, and conversion‑focused UX Fixing complex bugs, refactors, speed & Core Web Vitals work Mobile & Cross‑Platform Apps React Native / Expo or hybrid stacks for iOS and Android API-driven mobile apps connected to your existing backend or CRM MVPs, prototypes, and production-grade releases AI & Automation (LLMs, Workflows, Integrations) ChatGPT / Claude / ChatLLM–powered chatbots, assistants, and internal tools AI knowledge bases, RAG‑style search over your docs, AI summaries & insights Business process automation: CRM, email, billing, forms, and data sync AI‑assisted coding, automated reports, and internal dev tooling HOW I TYPICALLY WORK 1. Discovery & Strategy We clarify your goals, scope, budget, and timeline so we know exactly what “success” looks like. 2. Design & Architecture I propose a clear tech approach (stack, integrations, data model, AI usage when relevant) that balances speed, reliability, and cost. 3. Build & Iterate Short, focused milestones with visible progress: working features, not endless documents. 4. Launch, Test & Optimize Automated and manual testing, performance tuning, and post‑launch support so your app runs smoothly under real traffic. RECENT TYPES OF PROJECTS Full Stack Web & AI AI knowledge‑base chatbot for a research organization (LLM + RAG over reports and briefs). State Bill Grading Tool using LLMs to analyze legislation and output structured scores. AI news summarization pipeline with a live ticker UI pulling from multiple feeds. WordPress / E‑Commerce / SaaS Custom WordPress builds and rebuilds for SaaS, agencies, and content sites. WooCommerce and Shopify stores optimized for conversions and speed. Multi‑site WordPress ecosystems with custom dashboards and integrations. Mobile & Internal Tools Mobile MVPs for service businesses (booking, user accounts, push notifications). Internal dashboards and admin panels for operations, analytics, and content management. WHY CLIENTS HIRE ME (AND KEEP COMING BACK) Top Rated on Upwork – proven delivery and client satisfaction. Strong communicator – clear updates, no surprises, I ask the right questions. Business‑minded – I care about outcomes (revenue, engagement, efficiency), not just code. Versatile – web, full stack, mobile, and AI automation, so you’re not juggling 4 different freelancers. Reliable – I respect deadlines, document my work, and make maintenance easier for you or your team. CORE TECH & TOOLS Frontend & Mobile React, Next.js, React Native / Expo JavaScript (ES6+), TypeScript (if needed) HTML5, CSS3/SCSS, Tailwind, Bootstrap Backend & APIs Node.js (Express), PHP (Laravel, WordPress), Python REST APIs, webhooks, third‑party integrations (CRMs, payment gateways, marketing tools) CMS & E‑Commerce WordPress (custom themes/plugins, Gutenberg) WooCommerce, Shopify Webflow, Squarespace, Wix (for marketing sites & quick launches) AI & Automation ChatGPT, Claude, ChatLLM Desktop, GitHub Copilot AI chatbots, RAG search, summarization & grading, internal AI tools Workflow automation with CRMs, email tools, and internal systems DevOps & Workflow Git, GitHub, GitLab, Bitbucket AWS, WPEngine, SiteGround, GoDaddy Docker (where appropriate), CI/CD concepts Jira, Trello, Asana, ClickUp for project tracking WHAT TO DO NEXT If you’re looking for a reliable, senior developer who can handle: A new web or mobile app from idea to launch A complex WordPress / Shopify / WooCommerce project Or AI & automation work integrated into your existing stack Send me a message with: A short description of your project Your ideal timeline Any examples or references you like I typically respond within a few hours and can often start with a short paid discovery or audit so you get value quickly before committing to a larger engagement. Let’s build something great.