Mike Zeballos, Developer in Santa Clarita, CA, United States
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Mike Zeballos

Verified Expert  in Engineering

WordPress Developer

Santa Clarita, CA, United States
Toptal Member Since
October 13, 2021

A veteran web developer with WordPress and web accessibility expertise, Mike has accumulated years of industry experience, cultivating diverse skill sets with tools, technologies, and methodologies essential for crafting modern, performant, and secure websites. Mike is trusted with the full-stack management of various local government websites in Northern California (USA) and provides ongoing training and responsive support.


Lo9on, Inc.
PHP, JavaScript, CSS, Sass, Apache, Angular, MySQL, Smarty, SCSS...
Rauch Communication Consultants
WordPress, Section 508 Compliance, WCAG 2, PHP, ES5, ECMAScript (ES6), Sass...
Sarnet Communications Inc.
PHP, WordPress, WooCommerce, Git, GitHub, JavaScript, ECMAScript (ES6), APIs...




Preferred Environment

Windows, PhpStorm, Visual Studio Code (VS Code), SSH

The most amazing...

...project I've developed is the first paid online subscription-based Brazilian Jiu-Jitsu learning system that used a relational database for video delivery.

Work Experience


2008 - PRESENT
Lo9on, Inc.
  • Co-produced one of the 1st paid subscription-based martial arts learning programs with international reach using PHP and MySQL. The custom payment processor and the ActionScript-based media player were hosted on a leased dedicated server.
  • Migrated the online learning program to Muvi's OTT video streaming platform using a custom theme based on Angular and Smarty. An improved video search functionality was developed using a home-brewed API powered by Manticore Search.
  • Developed a single-page application web app for staff to check in guests at sponsored events. Designed and storyboarded in Miro, built with React, Firebase Cloud Firestore for data storage, and connected to headless WordPress and WooCommerce API.
  • Provided collateral media services using Adobe Illustrator, Photoshop, Premiere, After Effects, 3D Studio Max, and AutoCAD.
  • Built a hybrid app for Andy Gump's wellness program for networking participants and coaches, sharing news and nutritional advice, and sending push notifications. Used AngularJS and deployed the app on the Google Play Store via a closed beta.
  • Allied with dozens of local governments and special districts in Northern California as a webmaster, designing and maintaining websites, providing technical support and staff training, and auditing for regulatory compliance and ADA accessibility.
  • Utilized early, emerging technologies, such as Macromedia Flash and ActionScript, CSS, and rich media, such as QuickTime video, to deliver cutting-edge web solutions for clients.
  • Authored a user's guide for the MODX Evolution CMS.
  • Worked in the cosmetics and pharmaceutical industries, designing short forms, brochures, packaging, and creating corporate and product websites. Notable clients were Worldwide Cosmetics, American Int'l, Lee Pharmaceuticals, and Jessica.
Technologies: PHP, JavaScript, CSS, Sass, Apache, Angular, MySQL, Smarty, SCSS, ECMAScript (ES6), TypeScript, Bitbucket, Git, WordPress Management, WordPress Page Builder, Adobe XD to WordPress, WordPress Theme Design, Responsive Web Design (RWD), Web Development, WordPress Security, Elementor, Algolia, AdSpeed, AdSanity, WP Engine, WooCommerce, WooCommerce API, WooCommerce Subscriptions 2, Shopify, LearnDash, eCommerce, SilverStripe, WordPress Plugins, WordPress, WP-CLI, Advanced Custom Fields (ACF), Avada, Mailchimp, Cloud Firestore, React, Google Tag Manager, Google Search Console, Trello, Recurring Payments, Zapier, Accessibility, Figma, Divi

Full-stack Developer

1999 - PRESENT
Rauch Communication Consultants
  • Communicated directly with the client and district staff on technical support, website administration, and editorial updates and training.
  • Audited district websites for state and federal regulatory compliance, including Section 508 and WCAG 2.1 level AA minimum standards for accessibility. I generated reports aligned with the outline scope and identified violations and remediation.
  • Created a web-based customer service portal for a specialist district, built on a WordPress foundation and Ninja Forms with extensive utilization of both JavaScript and PHP hooks to produce the required business logic.
  • Created a real-time water testing dashboard for a local government website, built with React and Plotly for charts and a custom data provider WordPress plugin.
  • Created a boilerplate WordPress theme structure using Webpack and Composer that aligned with Rauch's business and coding standards to help minimize the time and expense of building new websites.
  • Designed and coded custom plugins, such as a board agenda management tool and a document manager, to provide the district staff with a better, more robust editorial experience within WordPress.
  • Authored and embedded custom maps with district boundary overlay using KML and the Google Maps API.
  • Integrated custom weather and rainfall charts with CSV and JSON from balance hydrologic and NOAA, using their respective APIs with Chart.js for presentation.
  • Provided ancillary SEO and keyword analysis to help make it easier for constituents to find important pages and postings on Google and other mainstream search engines.
  • Assumed a role of high trust by managing all website and related infrastructure credentials, including website hosting, backup services, and domain management.
Technologies: WordPress, Section 508 Compliance, WCAG 2, PHP, ES5, ECMAScript (ES6), Sass, CSS, HTML5, Node.js, Apache, DNS, MODx, Git, Vue, React, Webpack, Google Maps API, WordPress Management, WordPress Page Builder, Adobe XD to WordPress, Responsive, WordPress Theme Design, Responsive Web Design (RWD), Web Development, Websites, Compliance, Google Analytics, Google Tag Manager, Elementor, WordPress Themes, WordPress Plugins, WP-CLI, Advanced Custom Fields (ACF), WordPress REST API, Mailchimp, WooCommerce, Gutenberg Editor, Cloud Firestore, Accessibility, Divi

Senior Developer

2023 - 2023
Sarnet Communications Inc.
  • Managed multiple interconnected websites with a sophisticated network of vendor, client, and messaging data streams via custom RESTful APIs and Ajax.
  • Contributed to completing and optimizing a messaging platform, enabling communication between wedding vendors and clients using the WordPress REST API, secured with JWT authentication.
  • Addressed critical issues via bug fixes and recommendations on improving performance through refactoring, caching, and re-architecting code, with attention to metrics in tools like Google PageSpeed Insights and Lighthouse audits.
  • Implemented a GitHub workflow to automate deployment from develop and feature branches to production, which enhanced efficiency and established best practices.
  • Managed internationalization of site content and interactive components via WPML and Loco Translate WordPress plugins.
  • Created an Enfold/Divi custom page builder widget for selecting featured vendors to display as cards in a customizable animated carousel.
Technologies: PHP, WordPress, WooCommerce, Git, GitHub, JavaScript, ECMAScript (ES6), APIs, REST, WordPress REST API, MySQL, HTML, CSS, SCSS, Webpack, Node.js, NPM, Composer, Responsive Layout, Responsive Web Design (RWD), WPML, Internationalization, WordPress Plugins, WordPress Themes, Enfold, Divi, Localization

Senior WordPress Developer

2022 - 2023
Michelle Kantrow DBA News is my Business
  • Migrated the AdSpeed AdServer account to AdSanity, a WordPress ad server plugin. Configured placement, impression settings, and desktop and mobile visibility.
  • Migrated a news website from a Wix CMS to WordPress, hosting from WpEngine to Kinsta.
  • Provided miscellaneous support, maintenance, and troubleshooting of various website issues, including an integrated ad server, Google Analytics, GTM, security, and hosting.
Technologies: Ads, WordPress, WordPress Plugins, WordPress Themes, Wix, Social APIs, PHP, HTML, CSS, JavaScript, ECMAScript (ES6), Web Security, Wordfence Security, Google Tag Manager, Google Analytics, AdSpeed, AdSanity, Elementor, React, Node.js, Divi

Senior WordPress Developer

2022 - 2022
United States Skateboard Education Association
  • Assisted with migrating the organization's Articulate learning platform account assets to LearnDash LMS.
  • Converted interactive HTML Canvas animations to YouTube instructional videos, facilitating multilingual captions and playback among various devices.
  • Migrated an existing membership-based eCommerce platform to WooCommerce.
  • Engineered an architectural update to the member/subscriber flow and business logic via a Miro diagram.
Technologies: PHP, LearnDash, WooCommerce, WooCommerce Subscriptions 2, HTML, Videos, JavaScript, ECMAScript (ES6), CSS, Miro, HubSpot, WordPress, WordPress API, WordPress Plugins, WordPress Themes, Recurring Payments, Learning Management Systems (LMS)

Silverstripe Developer

2021 - 2022
Dioscuri Limited (Toptal Client)
  • Assisted with developing a commercial dealer webpage to search by location using Google Maps API and Geocoding API for proximity search.
  • Created a PHP script based on TCPDF/FPDI that aggregates product families, groups, and items into a dealer price list generated as a downloadable PDF.
  • Assisted with creating and modifying various Silverstripe modules for back-end editorial work.
  • Refactored a product's CSV import script based on Silverstripe's CsvBulkLoader, adding custom reporting via email, automated database backup, and recovery in the event of job failure, concurrency protection, and various optimizations.
Technologies: SilverStripe, Google Maps, Google Maps API, Google Maps Styling, Google Geocoding API, CSS, HTML, JavaScript, ECMAScript (ES6), Composer, Node.js, Git, Bitbucket, Webpack, Docker, TCPDF, PDF, PHP, Algolia

Senior WordPress Developer

2021 - 2021
Cayman Islands Sotheby’s International Realty (via Toptal)
  • Assisted with implementing a custom search context that distributes search results to different post templates and created the "load more" functionality as a substitute for paginated search results.
  • Assisted with implementing a theme-based currency converter.
  • Helped produce an improved UI for a property search bar.
Technologies: WordPress, WordPress Themes, ECMAScript (ES6), HTML5, CSS3, Sass, SCSS, User Interface (UI), JavaScript, Bitbucket, Git, WordPress Plugins, PHP

Junior Engineer

1990 - 1994
ITT Gilfillan
  • Assisted and contributed to the research and development of radar systems for civil and air defense under the supervision of senior-level engineers.
  • Gained hands-on experience working with radio-frequency components, antennas, and waveguides.
  • Contributed to hardware and software design of microcontrollers, programmable logic arrays, and embedded systems.

WordPress Websites for a Luxury Resort

Intercontinental Resorts is a chain of luxury hotels in French Polynesia. I am currently the senior web developer managing a trio of WordPress marketing websites, performing site maintenance, fixing bugs, and assisting with new content.

WordPress Custom Plugin for a Luxury Apartment Rental Multisite

I developed and successfully deployed a custom plugin to integrate Gravity Forms with the RentCafe CRM API. The plugin managed JWT authentication and rate limiting, and the core functionality was to send contact leads and property tour requests to the RentCafe API.

Customer Service Web Portal

I developed a web-based customer service portal for a special district.

The online portal provides water customers the convenience of starting or stopping the service and updating their customer information and other common customer service requests.

Website Design with Google Maps Integration

I designed and produced a WordPress website for a martial arts organization that featured a heavily customized Google Maps integration utilizing the Google Maps API, in addition to an admin area for members to manage their accounts.

A custom back-end admin form automatically geocodes the latitude and longitude coordinates of new academies added to the organization via a custom plugin using the Google Maps Geocoding API.

Chief Engineers of Chicagoland Website

Worked alongside a team of three developers to manage and develop new features and troubleshoot issues related to WordPress, WooCommerce, Ninja Forms, and other plugins and custom integrations on the organization's website. I produced additional collateral work, including a guest check-in web app created in React, with a Firestore back-end DB, used to facilitate at-the-door guest registration and merchandise sales tracking.

Section508/WCAG 2.1 Website Accessibility Audit

I performed a full ADA accessibility audit on a special district website using automated and manual testing techniques. I also provided a written executive summary and details of detected issues, including steps to remediate violations.

Online Jiu-Jitsu Instructional Program

A subscription-based online learning program currently in its V3 powered by Muvi's OTT platform.

I designed and developed the first version in late 2000 using PHP and a relational database to deliver instructional videos to paying subscribers.

The customized software includes a recurring billing system, a customer account management console, and an administrator console.

Canvas Art Merchant Website

A website and plugin development on a WooCommerce-based storefront with over 10,000 products. Worked as a temporary senior developer, assuming the role of consulting, designing, and developing the client's online presence.

Website Design

A WordPress microsite for a particular district.

I designed a full-width responsive website, converting a PSD mockup to a custom theme. I also incorporated Beaver Builder visual editor to facilitate an easy-to-use editing environment for the district staff.

WordPress Plugin for Board Agenda Management

I created a plugin for special district clients' WordPress websites to easily manage their board meeting schedule and related document postings.

The plugin provides a customizable repository for storing documents outside the WordPress media library.

Custom WordPress Theme and Website Relaunch

I converted an Adobe XD composite website redesign into a custom WordPress theme with build tools managed by webpack, including an SCSS preprocessor, a Babel transpiler, and an asset manager. I incorporated Beaver Builder as the visual content editor while making every effort to prevent the client from dealing with HTML or code for their editorial work. I also assisted in re-architecting the sitemap based on logical relationships and Google Analytics metrics. Lastly, I owned staff training on CMS management and content editing.

I continue to provide ongoing support for questions, posting content, and timely issue resolution.

WordPress Plugin: Real-time Water Testing Interactive Charts in React

I developed an interactive charting app for real-time water testing and reporting for a water storage district in Northern California. The app consists of two parts: a PHP script that monitors an upload directory on the webserver to capture pushed CSV data and convert it into MySQL, a front-end built with React, employing Material UI for component design, Plotly.js for charting, and Material UI DataGrid for the display of tabular data.

Shopify Custom Theme and Store Configuration

I built a custom Shopify theme using the Shopify CLI and the Liquid template language with styling based on the client's existing website. I assisted the client in establishing their storefront with shipping methods and rates, managing product inventory, and training on how to fulfill orders.

WordPress Plugin for PDF Document Management

I created a plugin allowing special district clients to manage PDF documents independently from the WordPress media library.

The plugin enables documents to be stored in any public directory on the webserver, thus freeing the media library from clutter. Additionally, users can specify a custom permalink to the document, providing the capability of replacing the file without breaking the link to the existing record.

Adobe XD to WordPress Website Production

I converted an Adobe XD interactive website mockup to a custom WordPress theme using Beaver Builder as the template library and visual page builder.

The client is the one managing the website after training, and I provide ongoing support as required.

Full Page Slider with CSS Animation

The client wanted a dynamic, media-rich single page on their existing website to showcase their new $30 million wastewater treatment plant as part of a media outreach campaign. Through a combination of WordPress, Smart Slider, and custom JavaScript/CSS to achieve specific functionality and aesthetics, I produced a design, incorporated all assets, and met stakeholder requirements to successfully complete the project.

Timeline for District 75th Anniversary

I designed a webpage featuring a visual timeline of a water district's history for its 75th-anniversary celebration.

The styling was adapted from the site theme with a smooth, fluid, and responsive presentation. The timeline was used for a keynote presentation and incorporated with social media announcements as part of a media outreach strategy.

Electoral Divisions Redistricting Map

I was responsible for producing an interactive map identifying 2021 Electoral Divisions for a local sanitary district.

The map was created using Google Maps and the Maps JavaScript API, using color-coded KML layers with InfoWindow popups and an autocomplete search bar to help constituents identify their residence on the map and the division they reside in.
1988 - 1992

Bachelor's Degree in Electronics Engineering

ITT Technical Institute - Van Nuys, Orange County, California, US


Testing for Web Accessibility With Accessibility Insights



AWS Cloud Technical Essentials



Section 508/WCAG Certified Trusted Tester

Department of Homeland Security


Designing an Accessible User Experience

Deque University


Dynamic Updates, AJAX, and Single-page Apps

Deque University


Accessibility Fundamentals: Disabilities, Guidelines, and Laws

Deque University


Responsive Design and Zoom

Deque University


jQuery, Vue, WordPress API, Node.js, React, Google Maps API, Liquid, Shopify API, PayPal API, Google Maps, Google Maps JavaScript API 3, Google Geocoding API, Google APIs, WooCommerce API, WordPress REST API, Social APIs, Plotly.js, REST APIs, Vue 2


Ninja Forms, Composer, WAI-ARIA, NPM, Git, Divi Builder 3, Webpack, Apache, Amazon EBS, Amazon CloudWatch, AWS IAM, Bitbucket, TCPDF, Google Analytics, AdSanity, LearnDash, WP-CLI, Advanced Custom Fields (ACF), Wix, Miro, WP Fusion, Mailchimp, Gutenberg Editor, Trello, GitHub, WPML, Zapier, Figma


PHP, HTML5, HTML, Ada, JavaScript, CSS, Sass, SCSS, ES5, ECMAScript (ES6), SQL, TypeScript, KML, CSS3


Responsive Web Design (RWD), REST, Responsive, Responsive Layout


WordPress, MODx, WordPress Theme Design, Shopify, Amazon Web Services (AWS), Amazon EC2, AWS Lambda, Docker, Algolia, WooCommerce, HubSpot


JSON, MySQL, WP Engine, Amazon S3 (AWS S3), Cloud Firestore


Bootstrap, CodeIgniter, Divi, Smarty, ZURB Foundation, Slim, Angular, Eloquent, SilverStripe, Swagger, JSON Web Tokens (JWT)


Compliance, WCAG 2, Beaver Builder, WordPress Themes, Accessibility, Web Accessibility, Accessible Rich Internet Applications (ARIA), WordPress Plugins, Web Development, Websites, WCAG, Accessibility Testing, Content Marketing Platforms, Section 508 Compliance, Gravity Forms, Wordfence Security, Elementor, XD to HTML, PSD to WordPress, AI to WordPress, WordPress Multisite, WordPress Rescue, WordPress Multi-user, Sketch to WordPress, WordPress Management, WordPress Page Builder, Adobe XD to WordPress, Responsive UI, Accessible Design, WordPress Security, User Experience (UX), User Interface (UI), APIs, DNS, Shopify Theme, Shopify Payments, Shopify Customizations, Timelines, CSS3 Animation, Google Earth KML, Maps, Google Maps Styling, Amazon RDS, WP JSON, Paid Memberships Pro (PMPro), Subscriptions, Membership Sites, Admin Panels, Google Data Studio, Smart Slider, Scroll Animations, WordPress Design, WordPress Optimization, Single-page Applications (SPA), PDF, Google Tag Manager, AdSpeed, WooCommerce Subscriptions 2, eCommerce, Ads, Web Security, Videos, Avada, Google Search Console, SSH, Web UX, Website Optimization, Recurring Payments, Internationalization, Enfold, Localization, Section 508, Real Estate, RentPress, Property Management System Integrations, Learning Management Systems (LMS), Funnel Leasing API

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