Sean Herbert

Senior PHP, WordPress & C#/.NET Developer

Years Experience: 15+
WordPress Sites: 800+
WooCommerce Sites: 350+
Client Satisfaction: 100%

About Me

Hi, I'm Sean Herbert, a senior full-stack web developer with over 15 years of experience specializing in PHP, WordPress, C#/.NET, and modern JavaScript frameworks. I excel at building high-performance websites and web applications - from custom WordPress and WooCommerce solutions to enterprise-grade C#/.NET 10 applications using ASP.NET Core. My expertise spans custom WordPress theme and plugin development, PHP application architecture, C#/.NET application development, database optimization, and creating seamless user experiences. Recently I've been building privacy-first, self-hosted products: WordPress plugins that run entirely from a site's own server, a .NET-powered media organizer, and a cross-platform health tracker on Next.js, Supabase, and Flutter. I'm passionate about clean code, performance optimization, and delivering scalable solutions that drive business results. When I'm not coding, you'll find me exploring new technologies, contributing to open-source projects, or mentoring fellow developers.

PHP & WordPressWooCommerceReact & TypeScriptC# & .NETCustom Development

Featured Projects

WP Local Consent

2026

A WordPress cookie consent plugin and script blocker that renders entirely from the site's own assets, with no third-party domain calls. The banner ships under 10 KB of JavaScript, fires Google Consent Mode v2 signals, and is backed by a measured performance benchmark, Lighthouse CI size budgets, and a security review of the consent log. Includes agency and multi-site tooling and a Pro companion plugin.

PHPWordPressJavaScriptLighthouse CIGitHub Actions

WP Local Accessibility

2026

A WordPress accessibility toolkit that runs entirely on the site's own server: a visitor-facing toolbar, an on-site accessibility scanner, and an auto-generated accessibility statement. No CDN assets, no third-party audit APIs, and no telemetry. Shipped with its own brand system and a static brochure site.

PHPWordPressJavaScriptWCAGNetlify

PixelVault

2026

Case study

A self-hosted, privacy-first photo and video organizer with albums, hierarchical tags, ratings, captions, perceptual-hash duplicate detection, and non-destructive editing. Everything stays on the owner's hardware, with signed media URLs, Argon2id and mandatory TOTP authentication, a PIN-gated private area, and secure remote access over Tailscale. Delivered as an ASP.NET Core service with web, desktop, and mobile clients.

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C#.NET 10ASP.NET CoreTailscaleffmpeg

MedTrack

2026

Case study

A personal medication efficacy tracker for logging mood, efficacy, dosage, and side effects, with reports that compare treatments over time. A Next.js web app on Supabase (PostgreSQL, auth, and sync) shares business logic with native Flutter apps for iOS, Android, macOS, and Windows.

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Next.jsTypeScriptSupabasePostgreSQLFlutter

Professional Experience

Blackbird Digital Inc.

Director of Technology, May 2012 - Present

Leading technology initiatives and driving digital transformation across multiple client projects. Specializing in WordPress development, custom PHP applications, WooCommerce implementations, C#/.NET 10 application development using ASP.NET Core, and modern JavaScript frameworks. Managed teams and delivered scalable solutions for enterprise clients.

LazerMaxx

Web Developer / Graphic Designer / Technician / Manager, January 2010 - June 2012

Developed and maintained WordPress websites, custom PHP applications, and e-commerce solutions. Managed technical operations, provided comprehensive support across multiple business functions, and implemented performance optimizations.

Skills

PHP & WordPress Development

PHP 8.x, WordPress 7.x, Custom Theme Development, Plugin Development, WooCommerce, Advanced Custom Fields (ACF), WordPress REST API, Custom Post Types, WordPress Multisite, Performance Optimization, Security Hardening

C# & .NET Development

C# 12/13, .NET 10, ASP.NET Core, Web API, Entity Framework Core, Blazor, Razor Pages, Minimal APIs, LINQ, Dependency Injection, xUnit, Azure App Service, SQL Server

Modern Frontend Development

React 19, Next.js 16, TypeScript, JavaScript (ES6+), HTML5, CSS3, Responsive Design

Backend & Database Technologies

PHP, Laravel, Node.js, Express.js, C#/.NET, MySQL, MariaDB, MSSQL, SQL Server, PostgreSQL, Supabase, Redis, RESTful APIs, GraphQL, Serverless Functions, Google Firebase, Database Design & Optimization

Mobile & Cross-Platform

Flutter, Dart, shared business logic across web, iOS, Android, macOS and Windows, Supabase auth & sync

Cloud & DevOps

WP Engine, Vercel, Netlify, Docker, Tailscale, Git, GitHub Actions, CI/CD, Lighthouse CI, Jest, ESLint, Prettier, Webpack, Vite, Performance Monitoring