Juan Manuel L.

I build custom WordPress features for businesses when stock plugins fall short. Clients hire me when an established site needs reliable integrations and technical improvements that hold up in production. I’m an electronics engineer with 8 years of hands-on PHP experience, including 6 in WordPress, much of it on live sites supporting real business workflows. Here’s the work I do best: ✔️ Custom WordPress features and plugin development ✔️ Integrations with APIs, webhooks, and third-party systems ✔️ Debugging and stabilizing inherited or high-impact code ✔️ WooCommerce fixes for checkout, product logic, and admin workflows ✔️ Performance work across the codebase, database, and server On Upwork, this has translated into long-term engagements measured in the hundreds of hours, alongside urgent fixes delivered on time and without budget surprises. Clients consistently mention clear communication, thorough work, and reliability. This work tends to fit best with business owners, founders, and product teams who already have a live site, store, or internal system they need to improve or extend. When priorities are clear, clients get both implementation and technical judgment. Each project starts with the goal, the relevant code, and the constraints that shape the work. From there, I walk the client through the realistic options, clarify the trade-offs, and implement the approach that best fits the job. Core tools and technologies: WordPress and WooCommerce; PHP, JavaScript, SQL/MySQL, hooks, REST API integrations, and custom plugins; WP-CLI, Git, Query Monitor; ACF and Gravity Forms; WP Rocket, Cloudflare, Redis, Apache/Nginx, staging, backups, and production troubleshooting. For WooCommerce, I help established stores solve product and variation logic, checkout or admin workflow friction, import/export issues, and performance bottlenecks that require code, not just settings. Tell me what is blocking your site, and I’ll help you figure out the cleanest way forward. —----- SEO keywords: WordPress, WooCommerce, PHP, MySQL, React.js, jQuery UI, custom plugins, plugin customization, custom business logic, API integrations, REST API, API webhooks, third-party systems, webhooks, legacy PHP, inherited code, legacy code refactoring, production bug fixes, debugging, troubleshooting, compatibility fixes, technical debt, shortcode development, WordPress shortcodes, WP Widgets, custom post types, admin workflows, profile pages, membership portals, client portals, LearnDash, Gravity Forms, ACF, WP-Cron, WP-CLI, WP_List_Table, update_user_meta, login fixes, registration walls, payment flows, checkout fixes, certificate generation, reminder emails, CSV processing, CSV export, data reconciliation, SKU, product routing, hierarchical product catalogs, embedded apps, InkSoft, theme customization, migrations, deployment, performance optimization, caching, server-side fixes, Git, Composer, AWS, FTP, SSH, GitHub, eCommerce workflows, WordPress maintenance, WooCommerce support.