I build production-ready web applications, business systems, e-commerce platforms, POS systems, and SaaS products — from architecture and UI to backend APIs, databases, integrations, and deployment.
Based in Metro Manila, Philippines 🇵🇭 and open to remote opportunities and freelance projects.
I'm a full-stack developer focused on turning real business problems into practical software.
My development background started before AI-assisted coding became mainstream, giving me a strong foundation in programming, architecture, debugging, and system design. Today, I use AI as an engineering multiplier — accelerating development without replacing the fundamentals required to build reliable software.
I've independently built and shipped systems ranging from:
- 🛒 E-commerce platforms
- 🧾 Point-of-Sale systems
- 📦 Inventory and order management
- 🍷 Multi-vendor marketplaces
- 🏢 Multi-tenant SaaS applications
- 🔐 Authentication and role-based access systems
- 📊 Internal dashboards and business tooling
- 🔌 Third-party API integrations
- 📱 Progressive Web Apps and Android utilities
I also have hands-on experience in franchise operations, CRM workflows, Meta Ads, sales funnels, and digital marketing, which helps me approach software from both a technical and business perspective.
SvelteKit · Svelte 5 · TypeScript · JavaScript · Python · Node.js
SvelteKit · React · Vue · TailwindCSS · shadcn-svelte · DaisyUI
Hono.js · Cloudflare Workers · Cloudflare D1 · PocketBase · Supabase · SQLite · MongoDB
Cloudflare Pages · Workers · D1 · R2 · Git · Docker · Vite · Jira · Figma
Stripe API · Shopify API · Commerce7 API · Google Maps API · Salesforce SFRA
REST APIs · RBAC · Multi-Tenant Architecture · Offline-First Apps · PWA · IndexedDB
SvelteKit · Cloudflare D1 · R2 · Stripe · Shopify · Commerce7
A production-scale wine-focused multi-vendor platform built from the ground up.
- Multi-vendor marketplace architecture
- Product and inventory synchronization
- Stripe subscription billing
- Shopify and Commerce7 integrations
- Geographic vendor filtering and maps
- Repository/service architecture
- Cloudflare-native infrastructure
- Market and storefront publishing systems
Lead Full-Stack Developer for an Australian client through Upwork.
SvelteKit · TypeScript · Hono.js · Cloudflare Workers · D1
Full franchise POS and inventory management platform designed for multi-branch operations.
- Offline-first POS using IndexedDB
- Automatic cloud synchronization
- Multi-tenant architecture
- Role-based access control with 30+ permissions
- Recipe-based inventory deduction
- Real-time order lifecycle
- Payment verification
- Audit logs and internal communication
- Branch and employee management
SvelteKit · TypeScript · Cloudflare Workers · D1
A complete digital ecosystem built for a coffee business.
- Custom Point-of-Sale system
- Customer-facing ordering platform
- Inventory management
- Administrative dashboards
- Reporting and analytics
- Employee management
- Real-time order queue
- Mobile-first Progressive Web App
- Thermal receipt printing integration
SvelteKit · TailwindCSS · shadcn-svelte · PocketBase
Responsive e-commerce platform built for a premium skincare and wellness brand.
- Product catalog and storefront
- Responsive mobile-first interface
- PocketBase backend
- Transactional email notifications
- Automated retry system for failed emails
- Cron-based background processing
- Cloudflare Pages deployment
Python · SQL
Business management application developed for salon operations.
- Customer queue management
- Employee assignment
- Service tracking
- Sales reporting
- Employee performance data
- Excel data export
Kotlin · Android
Lightweight Android utility built to bridge browser-based POS systems with thermal receipt printers.
- Intercepts POS print requests through Android URI schemes
- Automatically launches printing
- Removes repetitive browser print confirmations
- Designed for fast cashier workflows
TypeScript · CSS
Authentication and client-side routing experiment built without a frontend framework.
- Pure TypeScript
- Session-based authentication
- Route protection
- Custom client-side routing
- Zero routing libraries
Oct 2023 → Present
Supporting high-traffic e-commerce properties for CPO Outlets / CPO Power Tools, including Salesforce SFRA promotions, merchandising updates, QA, and major campaigns such as Black Friday and Cyber Monday.
Apr 2024 → Present
Architecting and developing a multi-vendor wine marketplace for an Australian client, including frontend, backend, infrastructure, billing, commerce integrations, and deployment.
Mar 2025 → Apr 2026
Built custom POS systems, e-commerce tooling, inventory solutions, dashboards, and internal business applications.
Mar 2025 → Apr 2026
Managed franchise inquiries, CRM workflows, landing pages, Meta Ads, and sales funnels while helping the company close 115+ franchise deals.
I'm interested in projects involving:
Custom Business Software · SaaS · E-commerce · POS Systems · Internal Tools · Business Automation · API Integrations
If your business has a process that's repetitive, fragmented, difficult to manage, or held together by spreadsheets and manual work, there's probably a better system we can build around it.
📧 Email: denver02.james14@gmail.com
🌐 Portfolio: portfolio-15z.pages.dev
💼 LinkedIn: linkedin.com/in/dduran19
🐙 GitHub: github.com/DDuran19