Alvin Kurnia Sandi Santoso
I am a senior full-stack software developer with more than nine years of experience creating and deploying web, mobile, SaaS, API, AI, and automation solutions. I enjoy turning complex business requirements into scalable, reliable products using technologies such as React, Next.js, TypeScript, React Native, Node.js, Python, FastAPI, PostgreSQL, AWS, Docker, and Linux.
I have worked closely with international clients and distributed teams, contributing across architecture, development, testing, deployment, troubleshooting, and performance optimization. I am especially interested in AI and automation, including LLM integrations, chatbots, AI agents, RAG systems, vector databases, and cloud-based applications, and I bring a practical, collaborative approach to delivering effective technical solutions.
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I build modern, responsive, and high-performing websites using WordPress, Wix, Squarespace, and Webstudio.
From business websites and landing pages to portfolios and service platforms, I deliver clean UI, mobile optimization, SEO-friendly structure, and fast-loading performance tailored to your goals.
I build modern, responsive websites using Webflow with a focus on clean design, smooth interactions, and strong performance. Ideal for startups, businesses, and landing pages, I create sites that are easy to manage, SEO-friendly, and optimized for conversions. From concept to launch, everything is built for speed and scalability.
I build custom travel platforms that simplify booking, itinerary management, and user experiences. From hotel and flight integrations to interactive maps, reviews, and secure payments, I create scalable and user-friendly solutions tailored to your business. Fast performance, clean design, and reliable systems ensure your platform is ready to grow.
I help businesses and startups build reliable smart contracts for real-world use. From token creation and DeFi protocols to NFT platforms and custom blockchain logic, I focus on security, efficiency, and clean architecture. Every contract is tested, optimized, and ready for deployment so you can launch with confidence.
I build professional Shopify stores tailored to your brand and business goals. From custom design and theme development to product setup, payment integration, and performance optimization, I create fast, user-friendly stores that drive sales. Whether you’re starting or scaling, your store will be ready to grow.
I build high-performance web and mobile applications tailored to your business needs. From responsive websites and scalable web apps to cross-platform mobile solutions, I focus on clean code, great user experience, and reliable performance. Whether you’re launching a startup or scaling an existing product, I deliver fast, secure, and production-ready solutions.
I worked on creating and customizing this Shopify store theme to deliver a clean, modern, and user-friendly shopping experience. The website focuses on eyewear products and features stylish layouts, organized product collections, and a fully responsive design.
Key features and contributions:
Customized the Shopify theme using Liquid, HTML, CSS, and JavaScript
Developed responsive layouts optimized for desktop, tablet, and mobile devices
Set up product collections, carousels, and promotional sections
Optimized images and page performance for faster loading times
Added regional and currency options to support international customers
Improved the overall user experience and visual presentation
I design and develop fast, visually stunning websites using Framer. Perfect for startups, portfolios, and landing pages, I focus on clean design, smooth animations, and responsive performance. Your site will be easy to manage, optimized for conversions, and ready to launch quickly.
I build custom fitness training platforms designed for coaches, gyms, and startups. From workout planning and progress tracking to subscription systems and real-time user engagement, I create scalable, user-friendly solutions that keep users motivated. Clean design, smooth performance, and reliable backend ensure your platform is ready to grow.
This service is a Bid and Project Management Dashboard that tracks bids, wins, losses, and project status across markets and staff. It provides visual analytics and filtering tools to help teams monitor performance, optimize bids, and manage projects efficiently.
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