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When your web project needs to actually work in production — not just look good in a demo — that's where I come in. I'm a Full-Stack PHP Developer (Top Rated, 100% Job Success) with 4+ years building complete business web applications: custom dashboards, multi-role auth systems, REST APIs, and platforms that scale. What I build: → Custom PHP web applications — from architecture to deployment → Admin dashboards with roles, permissions & multi-level notifications → REST APIs & third-party integrations (payment systems included) → Progressive Web Apps (PWA) — offline-ready, mobile-first → WordPress custom development & performance optimization → Database design & query optimization (MySQL) → CI/CD pipelines & Docker-based deployments Specialized in African payment integrations: M-Pesa, Airtel Money, Orange Money, and card-based solutions — for businesses and NGOs operating in sub-Saharan Africa. Recent build: A multilingual community platform (123+ languages via dynamic translation) built entirely in PHP — featuring custom admin panel, user roles & permissions, media management, event system, notification engine, Bible calendar, blog system, and a full developer dashboard. Stack: PHP, MySQL, JavaScript, Leaflet, SEO automation. Tech stack: PHP · MySQL · JavaScript · HTML5 · CSS3 · WordPress · REST APIs Docker · Git/GitHub · AWS (EC2, S3) · CI/CD · Playwright (testing) What working with me looks like: ✔ Clean, documented, maintainable code — no spaghetti ✔ Clear communication before, during and after delivery ✔ I flag problems early — no last-minute surprises ✔ I deliver for production, not just for approval I take on a limited number of projects at a time to maintain quality. Message me with your project scope and I'll reply within a few hours.

💎 Proven Success | 🏆 5+ Years of Experience | ✅ AI-Powered Product Builder Hi, I'm Joel Kalema, a Full-Stack Software Engineer specializing in AI-powered applications, SaaS platforms, modern web applications, and cross-platform mobile development. I help startups and businesses transform ideas into scalable, high-performance products using React, Next.js, TypeScript, React Native, Node.js, and AI technologies. From MVPs to production-ready platforms, I focus on delivering exceptional user experiences, clean architecture, and measurable business impact. Throughout my career, I've contributed to products that improved customer satisfaction by 40%+, optimized application performance, and accelerated development workflows through automation and AI-driven solutions. Why Work With Me? AI-Powered Product Development Build intelligent applications that leverage AI, automation, and modern user experiences to create real business value. Full-Stack Expertise From frontend interfaces to backend systems and API integrations, I deliver complete solutions that scale. UX-Focused Engineering I combine technical excellence with user-centered design to create products that are both powerful and intuitive. Reliable Communication Clear updates, proactive collaboration, and a commitment to delivering quality work on time. Core Skills & Technologies • Frontend: React, Next.js, TypeScript, JavaScript • Mobile: React Native • Backend: Node.js, REST APIs, Firebase • AI & Automation: AI Integrations, Workflow Automation, AI-Powered Features • Styling: Tailwind CSS, CSS Modules, Styled Components • State Management: Redux, Context API • Tools: Git, GitHub, Docker Services I Provide ✓ AI-Powered Web Applications ✓ SaaS Product Development ✓ Full-Stack Application Development ✓ React & Next.js Development ✓ React Native Mobile Applications ✓ Custom Dashboards & Admin Panels ✓ Directory Platforms & Marketplaces ✓ API Integration & Automation ✓ Performance Optimization ✓ SEO Optimization ✓ UI/UX Implementation ✓ Long-Term Maintenance & Support Whether you need an MVP, a scalable SaaS platform, an AI-powered application, or a complete product built from the ground up, I can help bring your vision to life.

I have extensive experience as a Front-End Web Developer, with a solid proficiency in HTML, CSS, JavaScript, and Bootstrap. My expertise lies in developing responsive, contemporary web templates, visually engaging websites, and applications. I am skilled in using Figma to design user-friendly interfaces, and I prioritize an all-encompassing approach to achieving visually appealing designs. I'm eager to work together to bring your vision to fruition! 🔧 What I bring to the table: - Pixel-perfect development from Figma or Adobe XD designs - Clean, maintainable, and scalable code - Intuitive UI/UX design skills using Figma - Mobile-first and cross-browser responsive layouts - Custom web templates tailored to your business needs Every project I take on is an opportunity to bring a client’s vision to life. I blend creativity with technical precision to build engaging user experiences that drive results. Whether you're launching a landing page, revamping your site, or building a web app from scratch—I’m here to make it happen. I have successfully collaborated with businesses and individuals on Upwork, providing innovative solutions that enhance productivity, streamline processes, and drive success. My approach is client-focused, ensuring clear communication, timely delivery, and top-tier service.

Hello everyone ⭐⭐⭐⭐⭐ Top Rated plus ⏱ Reply within 24 hours 24/7 💼 I am a Full-Stack Developer with over 5 years of experience in building applications from scratch using JavaScript / Typescript / Node /React / React Native / Next.js / MongoDB. I've been working on different types of projects so far in various domains such as CRM, ERP, Finance, Tourism, Corporate, and E-commerce. Have a great experience with API integration, REST, and 3rt parties. I adapt very quickly to a new work environment and I am comfortable working in a team (I'm actually quite calm). 🔥 Tech Stack: ✔ JavaScript ✔ HTML / CSS ✔ TypeScript ✔ Node ✔ React ✔ Redux ✔ React Native ✔ Next ✔ Mobx ✔ MongoDB ✔ MySQL ✔ SQL ✔ Firebase ✔ GraphQL I can help you build your exciting product using good coding practices and building scalable and maintainable code!🏆 Feel free to ask any questions, let's have a call, Best Regards, Serge M.

Need a fast, modern landing page that looks great and converts visitors into clients? I help startups, entrepreneurs, and businesses build clean, responsive, and high-performing websites. With over 5 years of experience, I specialize in transforming designs into functional, pixel-perfect web interfaces using modern frontend tools. I don’t just write code; I focus on delivering a seamless user experience, fast load speeds, and mobile-responsive designs that help your business grow. 💻 What I can build for you: High-Converting Landing Pages: Optimized for sales, products, and lead generation. Responsive Websites: Mobile-friendly, fast-loading, and built for modern browsers. React-based Interfaces: Dynamic, interactive, and scalable web components. UI Redesigns: Modernizing existing layouts to improve user engagement. Website Maintenance: Bug fixes, performance optimization, and code cleanup. ⚙️ My Tech Stack: Core: HTML5, CSS3, JavaScript (ES6+) Frameworks/Libraries: React.js, Bootstrap Styling: Tailwind CSS 🛠 Operational & Administrative Support: Because I understand the needs of busy entrepreneurs, I also provide secondary support to help streamline your daily operations, including research, reporting, project coordination, and administrative assistance. ✅ What you can expect when working with me: Clean, Maintainable Code: Built to standard, easy for any team to scale. Clear Communication: I keep you updated at every stage of the build. Reliability: I prioritize deadlines and project requirements. Conversion-First Mindset: I build with your end-user in mind. 👉 Ready to build something great? Click the "Invite" button or send me a message with your project details. Let’s create a website that works as hard as your business does.

I help businesses modernize their .NET applications, design intuitive user experiences, integrate AI-driven features, and rescue projects that have gone off track. I deliver solutions that are fast, scalable, and future-ready. What I Do Best: Legacy Modernization – Migrate WinForms/WPF/ASP.NET to Blazor, ASP.NET Core, WPF/Avalonia, or MAUI. Cross-Platform Development – Build mobile, web, and desktop apps from a single codebase using .NET MAUI & Blazor Hybrid, Avalonia, or Uno Platform. AI Integration – Implement AI features with OpenAI API, Microsoft Azure AI, Claude Code, and intelligent automation. Vibe Coding Rescue & Setup – Resolve compilation errors, fix unstable builds, clean up rushed codebases, and establish a proper foundation for long-term maintainability. I can also configure your project to fully leverage AI-powered development tools like Claude Code, Wrap.dev, OpenCode, Cursor, or VS Code with GitHub Copilot Agent—creating a workflow that aligns AI-assisted coding with your project goals, from user stories → tasks → code → debug → production → continuous improvement. UI/UX Modernization – Redesign and optimize interfaces for usability and conversion. Complex Reporting & Automation – Deliver powerful reporting tools and streamline workflows. Featured Results: Modernized SMB Solution (Ongoing, $57K+ earned): Migrated and improved a large-scale SMB platform using Blazor & ASP.NET Core, enhancing performance and scalability. Cross-Platform Chat App ($1K, 3 Weeks): Built a real-time Blazor Hybrid MAUI chat application for iOS & Android with seamless UI/UX. B2C Authentication Mobile App ($1.6K, 55 Hours): Delivered secure, persistent login functionality in a MAUI Hybrid app with flawless client ratings. Why Clients Choose Me: Clear, proactive communication Agile, clean code, and industry best practices Ability to turn problematic codebases into stable, production-ready systems Long-term support and collaboration mindset Let’s discuss how I can modernize your app, boost its performance, or rescue your current project so it’s back on track and delivering value fast.