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custom wordpress plugin development

Custom WordPress & WooCommerce Plugin Development

When off-the-shelf plugins don't fit your business logic, I build secure, tested, and high-performance custom WordPress and WooCommerce plugins that solve exact requirements.

Scope & Deliverables

What is included in this engagement

Bespoke WooCommerce extensions, custom gateways, and checkout flows

Secure REST API endpoints with authentication and rate limiting

Asynchronous background processing and Action Scheduler integration

Third-party ERP, CRM, and inventory synchronization

Strict automated testing with unit and integration harnesses

Conflict-free namespacing and zero frontend performance degradation

Engineering purpose-built WordPress plugins

Generic commercial plugins attempt to satisfy every possible use case, resulting in thousands of lines of dormant code, cluttered admin menus, and unnecessary database queries. When your business needs a specific operational capability, a tailored custom plugin delivers precision, security, and speed.

My custom plugin development standards:

  • Modern Object-Oriented PHP: Clean separation of concerns with PSR-4 autoloading, dependency injection, and strict typing (PHP 8.2+).
  • WordPress Hook Architecture: Interacting strictly with documented actions and filters rather than modifying core files or overriding templates destructively.
  • Complete Database Safety: Using custom tables with primary keys and indexes when relational data requires it, rather than overloading wp_postmeta.
  • Cryptographic Security: Nonce verification, capabilities checking (current_user_can), and parameterized database queries on every endpoint.

Real-world custom plugin experience

  • STRABL 'Try Now, Buy Later' Gateway: Built a bespoke WooCommerce payment gateway allowing shoppers to order products on trial before purchase, integrating custom payment webhooks and asynchronous status reconciliation.
  • Fleet Sentinel WordPress Agent: Engineered a lightweight, multi-tenant monitoring agent plugin in plain PHP (10 modular classes) featuring HMAC-SHA256 request signing, clock-skew correction, and automatic vulnerability inventory reporting across hundreds of external client installations.
  • Rate Calculation Plugins: Developed dynamic kilowatt-hour utility calculators with responsive custom interfaces and real-time JavaScript pricing models.

Asynchronous background tasks & API integrations

Heavy operations—such as syncing stock with SAP or NetSuite, generating PDF invoices, or pushing event telemetry—should never block the visitor's browser thread. I leverage WooCommerce Action Scheduler or the WordPress Cron API with dedicated worker queues to process jobs reliably in the background with automatic retries and failure alerts.


Have a unique business workflow or custom e-commerce requirement? Let's build a rock-solid plugin tailored to your business.

Featured Case Study · Sept 8 — 12, 2026 · 31 commits

Fleet Sentinel

A platform that watches a whole fleet of WordPress sites — so people don't have to.

482

passing Vitest tests

142

PHP checks across 6 suites

69

recorded design decisions

Verifiable Track Record

Relevant enterprise experience

Front-End Developer

Aug 2024 — Present

Coalition Technologies

I worked as a WordPress developer managing multiple websites, creating custom plugins, and implementing designs. I used ACF and built custom fields to add extra functionality, handling both front-end and back-end development. I also managed server-side tasks such as resolving email issues, cleaning infected sites, and hardening WordPress security. My work included troubleshooting, optimizing performance, and delivering secure, fully functional WordPress solutions tailored to client needs.

WordPressCustom PluginsACFSecurity HardeningMalware CleanupPerformance

WordPress Developer

Jul 2023 — Aug 2023

STRABL

I crafted a custom WordPress plugin for WooCommerce, enabling a distinctive “Try Now, Buy Later” feature through a tailored payment gateway and proficiently integrating PHP and WordPress, which allowed users to initiate product trials before purchase. My solution showcased innovative e-commerce functionality in a compact package.

WooCommercePayment GatewayPHPCustom Plugin

Technical Insights

Related engineering guides

Frequently Asked Questions

Common questions & technical details

How do you ensure custom plugins don't break on WordPress updates?Expand

By strictly using documented WordPress core action and filter hooks, modern PHP standards, strict namespacing, and automated regression test suites.

Can you build custom payment gateways or external API sync?Expand

Yes. I have built custom payment gateways (such as a 'Try Now, Buy Later' WooCommerce gateway for STRABL) and automated data sync pipelines connecting WordPress to third-party ERPs and cloud services.

Ready to execute?

Build a custom plugin

Get in touch to review your current architecture, audit performance benchmarks, or scope your custom implementation.