Web Development

// services

What I Build

Full-spectrum web development services, from simple marketing sites to complex e-commerce platforms.

🌐

Custom Website Development

Hand-coded or CMS-based websites using WordPress, custom PHP, React, or Next.js. Every site is built mobile-first with performance in mind.

🛍️

Shopify Store Development

Custom Shopify themes, Liquid template development, app integrations, checkout customization, and complex product configurations.

🛒

WooCommerce & E-commerce

End-to-end WooCommerce stores with custom payment gateways, product builders, subscription models, and inventory management.

🚀

Landing Pages & Funnels

High-converting landing pages and sales funnels built with Elementor, custom HTML, or React. A/B test-ready with analytics.

🔄

Website Redesigns & Migrations

Modernize your existing site or migrate between platforms without losing SEO equity.

⚡

Speed & Core Web Vitals

Performance audits and optimization. Image compression, lazy loading, caching strategies for sub-2-second load times.

📱

Responsive & Mobile-First

Every project is built to look and perform flawlessly across all devices, from 320px to 4K.

🔌

API Development & Integration

Custom REST APIs, third-party integrations, webhooks, and data synchronization.

🔧

WordPress Plugins

Custom plugin development. Multi-step forms, package builders, pricing calculators, and admin dashboards.

// code quality

Clean Code, Real Results

seldrick.js

1// What I bring to every project
2const developer = {
3  name: 'Seldrick De Leon',
4  role: 'Full-Stack Web Developer',
5  experience: '8+ years',
6  available: true,
7  focus: ['performance', 'scalability', 'clean code']
8};
9
10async function buildProject(requirements) {
11  const plan = await analyze(requirements);
12  const design = await prototype(plan);
13  const product = await develop(design);
14  return await optimize(product);
15}

// stack

Web Dev Toolkit

</> HTML5 🎨 CSS3 / SCSS ⚡ JavaScript (ES6+) 🐘 PHP ⚛️ React ▲ Next.js 📦 Node.js 🔷 WordPress 🎯 Elementor 🛍️ Shopify 💧 Liquid 🛒 WooCommerce 🌊 Tailwind CSS 💚 GSAP 🐬 MySQL 🍃 MongoDB 📊 Git / GitHub 🎨 Figma 🔥 REST APIs 📐 Responsive Design

// workflow

My Process

01

Discovery & Planning

We start with a deep dive into your business goals, target audience, and technical requirements. Full project scope before any code.

02

Design & Prototyping

Wireframes and visual mockups. I design the UX/UI with conversion and usability in mind, iterating on your feedback.

03

Development & Testing

Clean, modular code with best practices. Every feature tested across browsers and devices. Staging previews throughout.

04

Launch & Optimization

Final QA, then go live. DNS, SSL, caching, CDN, performance optimization. Analytics configured from day one.

05

Ongoing Support

Post-launch maintenance, security updates, performance monitoring, and feature additions as your business evolves.