--- title: "WordPress Development Services | Carlos Arias" description: "Custom WordPress development by a software engineer: custom themes and plugins, performance, security, technical SEO, integrations, AI and WooCommerce. Building with WordPress since 2009." url: "https://carlosarias.com/services/wordpress-development" --- WordPress Development Services # WordPress development, built by a software engineer. I’ve been developing with WordPress since 2009 — custom themes, plugins, API integrations, performance work, security fixes, and cleaning up sites that have grown bloated or hard to maintain. I’m not limited to installing themes and plugins: when WordPress needs to do something it wasn’t designed to do out of the box, I can build it. Talk to me about your project See the development work ![A sumi-e ink painting: a web page built from modular content blocks, with ink-brushed gears and a plug-and-socket connector beneath it — the engineering under the hood — stamped with a single red seal.](/brand/wordpress-development-hero.webp) - **Since 2009**: Building with WordPress - **25+ yrs**: In software engineering - **Full-stack**: PHP, databases, APIs, JS, server - **1:1**: You work directly with me The real problem ## WordPress is easy — until you need it to do something custom. WordPress makes launching a basic site easy. That’s also how a lot of WordPress sites eventually become a mess. A theme gets installed. Then a page builder. Then twenty plugins. Another plugin fixes something the first one broke. Performance drops, updates get risky, and nobody wants to touch the site because nobody fully understands how it works anymore. I approach WordPress as a software platform, not just a website builder. Sometimes the right answer is an existing plugin. Sometimes it’s a few lines of PHP. Sometimes it’s a custom plugin, an API integration, a custom post type, database work, or an entirely custom theme. The goal is to use WordPress without letting WordPress become the limitation. The approach Platform, not template I won’t write custom software just to call it custom — and I won’t install six plugins to do what should be one clean piece of code. What I build with WordPress ## Custom development, from a theme to the systems behind it. I can work with an existing installation or build from the ground up. Most projects need a few of these, not all of them — each is worth doing on its own. - ### Custom theme development Themes built around the actual design and requirements of the site, instead of forcing a business into a pre-built template. Structured, editable, and easy to manage. Custom templates - Gutenberg blocks - Custom post types - Dynamic content areas - Structured content - Responsive layouts - Reusable components - ### Custom plugin development When the plugin you need doesn't exist, I build it — one clean piece of code instead of six plugins stacked to fake it. If a reliable plugin already solves it well, I use that. - Custom workflows - API integrations - CRM connections - Lead processing - Calculators & tools - Custom admin - Data sync - Webhooks - AI & automation - ### Performance optimization A slow WordPress site usually isn't slow because of WordPress — it's everything that accumulated around it. I analyze the whole stack and fix the real bottlenecks, for real users, not a bragging-rights score. - Core Web Vitals - PageSpeed - Database optimization - Caching - CDN - Image optimization - JS/CSS - Plugin audits - PHP config - Query analysis - ### Security & hardening Core, themes, plugins, PHP and integrations all change over time; a site that was secure at launch drifts. I reduce risk through better architecture and ongoing practice — starting by removing unnecessary complexity. - Core/plugin updates - Vulnerability reviews - Malware cleanup - Login protection - Two-factor - File permissions - Firewall - Backups - Staging - Monitoring - ### Technical SEO development I don't separate development from search visibility. A site can look great and still create technical SEO problems underneath — especially at hundreds or thousands of pages, where the architecture matters most. - Crawlability - URL structure - Schema - Internal linking - Redirects - Canonicalization - XML sitemaps - Metadata - Structured content - ### Integrations & automation Your site shouldn't be an isolated marketing tool. WordPress can connect to the systems running the rest of the business, so the website becomes part of the workflow instead of a copy-paste chore. - CRMs - Marketing automation - Email systems - Payments - External databases - Analytics - Lead management - Third-party APIs - Internal apps - ### WordPress + AI WordPress doesn't have to stay a static CMS. I connect it to AI-powered systems that research, create, analyze, distribute, update and monitor content — the site as part of a larger platform, not another isolated tool. - AI agents behind the site - Content workflows - Knowledge systems - Data analysis - CRM automation - Lead qualification - ### WooCommerce development For products, subscriptions, services or digital goods, I develop and customize WooCommerce beyond what standard extensions provide. The larger the store, the more the underlying architecture matters. - Custom checkout - Payment integrations - Product logic - Third-party APIs - Automation - Performance - Custom plugins - ### Fixing existing sites You don't always need another redesign. I audit an existing site, then we decide whether it makes more sense to repair, refactor, partially rebuild, or replace what's there. - Performance - Plugins - Themes - Security - Database - Technical SEO - Mobile - Hosting - Tracking - Broken functionality How it works ## How I approach a WordPress project. 1. ### Understand what the website needs to do Before changing themes or installing plugins, I need the business, the users, the marketing strategy and the functionality the site actually requires. 2. ### Review the existing architecture If the site already exists, I review the theme, plugins, hosting, database, integrations, performance and technical problems before deciding what should change. 3. ### Build the right solution That might be configuring existing functionality, a custom theme, a plugin, an API connection, a better server environment — or several of those combined. 4. ### Test, optimize and launch Before launch I test functionality, responsive behaviour, performance, integrations, tracking, SEO fundamentals, security and the editing experience. 5. ### Keep improving Sites aren't finished when they launch. I can keep improving performance, functionality, SEO, security, automation and integrations as the business grows. Why me ## WordPress development without the agency layers. I’ve been building websites professionally since the early days of the commercial web, and working with WordPress since 2009. So when something goes wrong, I’m not immediately reaching for another plugin. I can look at the PHP, the database, the API, the JavaScript, the server configuration, the WordPress architecture, the SEO implications and the business requirement behind the problem — and decide what actually fixes it. You aren’t hiring someone who only knows how to operate WordPress. You’re hiring a software engineer who knows how to develop with it. Talk about your project Questions ## WordPress development FAQs. Do you develop custom WordPress plugins? Yes. I develop custom plugins when existing ones don't provide what a project requires — integrations, automation, APIs, custom workflows, admin tools, data processing and other business-specific functionality. Do you build custom WordPress themes? Yes. I develop completely custom themes rather than relying on pre-built multipurpose templates, and I can also work with an existing theme when rebuilding from scratch isn't necessary. Can you optimize an existing WordPress website? Yes. I audit and optimize existing sites for performance, Core Web Vitals, database efficiency, plugins, technical SEO, security, hosting configuration and overall maintainability. Can you fix a hacked or insecure WordPress website? I can help identify security problems, clean compromised installations, harden WordPress, review plugins and themes, improve server configuration, and establish better update and backup procedures. Do you work with Elementor, Gutenberg and other page builders? Yes. I work within an existing stack when it makes sense and don't automatically replace a page builder just because one is installed. The decision depends on performance, maintainability, editing needs and the goals of the site. Can WordPress integrate with my CRM or other software? Yes. WordPress has a strong API and development ecosystem. I connect it with CRMs, marketing platforms, payment systems, external databases, analytics tools, AI platforms and proprietary business applications. Do you provide WordPress maintenance? Yes. WordPress needs ongoing core, plugin, theme, security, performance and compatibility maintenance, which can be handled as part of an ongoing development relationship. Can you migrate an existing website to WordPress? Yes. I migrate sites and content into WordPress while addressing URL structure, redirects, SEO, content architecture, integrations and performance during the migration. Is WordPress still a good platform for a new website? For many businesses, yes — it's a mature CMS with an enormous ecosystem and real flexibility. The more important question is whether it's the right architecture for the specific project. I don't recommend it automatically when another platform or a custom application would make more sense. Let’s talk ## Not another plugin stack. WordPress, engineered. Tell me what your WordPress site needs to do, what’s breaking, or what you’re trying to build. You’ll get a straight assessment from the person who’d actually do the work. Let’s talk about your project [561-460-0660](tel:5614600660) Carlos Arias · Marketing Engineer · WordPress development since 2009 · 25+ years in software engineering