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Caleb
@kyungzs
AI Full Stack Web Mobile App Developer Intelligent Scalable Digital Solutions
United Kingdom
English
About me
I am an experienced AI Full-Stack Developer specializing in building intelligent, scalable, and high-performance web and mobile apps. I combine advanced AI integration with modern full-stack development to deliver digital products that are not only innovative, but production-ready and built to scale.
From AI-powered SaaS platforms to custom web and cross-platform mobile apps, I help startups and businesses transform ideas into robust, user-focused solutions. My approach blends clean architecture, performance optimization and ensuring your product works efficiently and grows with your users.
Skills
Caleb
Offline •
Average response time: 24 hours
See my services
Cross-Platform Development
I will build kids learning, ai arcademics, language learning, ict and quiz gaming app
Cross-Platform Development
I will build real time yacht, jet ski, boat rental app for booking n location tracking
Work experience
Full Stack Developer (Freelance)
Novartis • Full-time
Aug 2022 - Nov 2025 • 3 yrs 3 mos
Freelance full stack developer building custom e-commerce solutions and content-driven web platforms for SME clients. Responsible for both client-facing UI and server-side logic. Managed direct client relationships, technical scoping calls, and delivery across multiple concurrent projects within a busy agency environment. Key achievements Built a custom Shopify app using Node.js and the Shopify Admin API, automating inventory sync for a client managing 3,500+ SKUs. Developed a Next.js headless storefront with Sanity CMS, cutting page load time by 52% vs the client's legacy WordPress site. Integrated ShipStation and EasyPost logistics APIs, reducing manual fulfilment processing time by 70% for a mid-size retailer. Delivered 5 client web projects in 10 months, all within scope and budget, earning a 5-star rating across all engagements.
