Nestor is available for hire
Hire NestorNestor Zaldivar
Verified Expert in Engineering
WordPress Developer
Montreal, QC, Canada
Toptal member since October 9, 2020
Bio
Nestor is a proficient and creative WordPress developer with a decade of experience building engaging and interactive websites. Nestor has a solid knowledge of all aspects of WordPress website creation with extensive hands-on experience in back-end and front-end development.
Portfolio
Pindrop Security Inc.
WordPress, Advanced Custom Fields (ACF), CSS, Parallax Design, UI Components...
Golden Financial Services Debt Settlement Corp
WordPress, HTML5, CSS3, A/B Testing, Performance Optimization, JavaScript...
Maldonado Nursery and Landscaping Inc
HTML, JavaScript, WordPress, CSS, WordPress Themes...
Experience
- WordPress - 11 years
- CSS - 11 years
- HTML - 11 years
- PHP - 11 years
- MySQL - 11 years
- JavaScript - 9 years
- Tailwind CSS - 4 years
- React - 4 years
Preferred Environment
Ubuntu, MacOS, Git, PhpStorm
The most amazing...
...thing I've developed is a WordPress multisite for a travel agency that allows them to build and sell their tours through several websites with unique styles.
Work Experience
WordPress Developer
2025 - PRESENT
Pindrop Security Inc.
- Built a WordPress component library plugin from scratch, consisting of a large collection of custom blocks, reusable React components styled with Tailwind CSS, animations, and dynamic templates powering the entire Pindrop website.
- Maintained and improved the Pindrop WordPress theme, delivering the homepage and multiple page templates featuring advanced animations and interactive UI components.
- Delivered significant site performance improvements through a series of targeted optimizations, including deferred script loading, lazy loading strategies, and a React 18 migration.
- Integrated third-party tools, including Wistia video playlists and Lottie animations within the WordPress plugin architecture, and implemented custom SEO schemas and structured data to improve search engine visibility and marketing operations.
Technologies: WordPress, Advanced Custom Fields (ACF), CSS, Parallax Design, UI Components, Component Libraries, Parallax, ACF PRO, React, Tailwind CSS, WordPress API
WordPress Developer
2026 - 2026
Golden Financial Services Debt Settlement Corp
- Developed and maintained multiple custom page templates within an existing WordPress theme for a high-traffic financial review and comparison platform, including an animated homepage and several category and lead generation landing pages.
- Built reusable interactive components within the existing WordPress theme, including dynamic tools with animated UI feedback designed to improve engagement on affiliate lead generation pages.
- Implemented custom template routing logic within the existing WordPress theme, enabling multiple page builder workflows to coexist seamlessly across different content types on the site.
Technologies: WordPress, HTML5, CSS3, A/B Testing, Performance Optimization, JavaScript, Variant Configuration, Google Tag Manager, Google Analytics 4 (GA4), Conversion Rate Optimization (CRO), VWO, Landing Pages, Affiliate Tracking, Tailwind CSS, React
WordPress Developer
2024 - 2025
Maldonado Nursery and Landscaping Inc
- Developed a fully custom WordPress website from scratch, implementing a responsive theme tailored to brand guidelines and user experience best practices.
- Configured and optimized hosting on WP Engine, leveraging built-in caching, CDN, and security features to ensure 99.9% uptime and fast page load speeds.
- Implemented a modular site architecture with reusable custom blocks and templates in Gutenberg, reducing future content update time by 40%.
- Integrated third-party plugins and APIs for SEO, analytics, and marketing automation, enabling data-driven content performance tracking and lead capture.
- Tested and launched the site with cross-browser and cross-device QA, ensuring seamless user experiences on desktop, tablet, and mobile.
Technologies: HTML, JavaScript, WordPress, CSS, WordPress Themes, WordPress Theme Customization, Forms, Analytics, Design, ACF PRO, GitHub, WP Engine, React
WordPress Developer
2024 - 2025
Suite Experience Group, LLC
- Transformed Figma designs into fully functioning WordPress websites.
- Implemented and styled remaining pages to match existing designs.
- Followed the provided booking flow template and implemented the necessary features.
- Collaborated closely with the client's team for effective communication and responsiveness.
Technologies: WordPress, PHP, HTML, CSS, Figma to WordPress
Senior WordPress Developer
2024 - 2024
Astrana Health
- Created custom WordPress themes from scratch with custom designs for each of the eight websites.
- Set up all the websites in WP Engine Hosting and created all the automated deploys from GitHub to WP Engine.
- Developed the company's main website (Astranahealth.com).
- Built the website to locate company clinics using Google Maps API (Astranacare.com).
- Developed the company intranet website, including features like SSO login using a Microsoft account (WPO365 plugin) and internal store using WooCommerce.
Technologies: WordPress, React, Tailwind CSS, Advanced Custom Fields (ACF), Google Maps API, Bootstrap, WP Engine, GitHub, GitHub Workflows, Jira, WooCommerce, Single Sign-on (SSO)
Senior WordPress Architect
2022 - 2023
Dentsu Aegis Network - Isobar
- Maintained a WordPress multisite, developed new features, and fixed bugs as needed.
- Optimized database queries for website improvement.
- Developed a custom plugin from scratch for the multisite.
Technologies: WordPress, WordPress VIP, Docker, CircleCI, GitHub, React, WordPress Plugins, WordPress Themes, WordPress API, WordPress Multisite, Jira, Technical Architecture
WordPress Developer
2021 - 2022
Global Technology Advisory Firm
- Built a new WordPress theme from scratch to replace the old one, optimizing and improving the website performance.
- Developed the front-end using a private UI library based on React, integrated React with WordPress, and created JavaScript features in React.
- Wrote WordPress Unit Tests to verify each function or class method from the WP theme. Collaborated with the DevOps team to automate the unit testing in GitHub.
- Added PHP_CodeSniffer with WordPress Coding Standards and ESLint for JavaScript to validate and ensure code quality.
Technologies: PHP, WordPress, WordPress Themes, React, PHP CodeSniffer, ESLint, GitHub, HTML, CSS, SCSS, Advanced Custom Fields (ACF), PHPUnit
WordPress Developer (via Toptal)
2020 - 2021
Teknicks
- Built a custom WordPress theme from scratch with Vimeo API integration for videos, managed content restriction for users, and integrated with Stripe API for subscriptions.
- Developed another custom WordPress theme from scratch for a podcast website, with a custom solution to import podcasts and episodes from Megaphone to the website.
- Set up a web server solution on DigitalOcean, installed SSL certificates, and set up WordPress instances.
Technologies: WordPress, WordPress Themes, WordPress Plugins, Vimeo API, Stripe API, DigitalOcean, HubSpot, Bootstrap, GitLab
Web Developer
2019 - 2020
Self-employed
- Developed custom WordPress themes and plugins from scratch.
- Contributed to the front-end development using BootStrap and jQuery.
- Collaborated with an independent creative agency, Versal Studio, to update, change, or rescue WordPress projects.
Technologies: Git, DigitalOcean, LAMP, jQuery, JavaScript, Bootstrap, CSS, HTML, WordPress, PHP
Web Developer
2018 - 2019
SimplyPHP Inc
- Worked as a PHP back-end developer with the Laravel framework.
- Contributed to several WordPress projects. Built plugins and themes from scratch.
- Created custom HTML templates from PSD files using Bootstrap and jQuery.
Technologies: Git, Bootstrap, jQuery, JavaScript, CSS, HTML, WordPress, Laravel, PHP
IT Team Leader
2013 - 2018
Cuba Education Tours
- Managed the IT team. Helped with building and expanding the development team.
- Helped other developers to succeed in their daily tasks and worked as a developer.
- Helped direct, build, and engineer most of the company’s projects.
- Developed custom WordPress themes and plugins for a multisite.
- Optimized the performance of a WordPress multisite.
- Helped with the Linux server maintenance (cPanel and WHM).
Technologies: Git, Web Host Manager (WHM), Bootstrap, jQuery, JavaScript, CSS, HTML, MySQL, WordPress, PHP
Web Developer
2010 - 2013
Self-employed
- Architected several WordPress sites working very closely with designers.
- Developed custom WordPress themes and plugins from scratch.
- Contributed to the creation of custom HTML templates from Photoshop files.
Technologies: jQuery, JavaScript, CSS, HTML, WordPress, PHP
Experience
Astrana Health
https://www.astranahealth.com/A leading provider-centric, technology-powered healthcare company enabling providers to deliver accessible, high-quality, and high-value care to all. The website was created in WordPress.
I was the main developer, creating the website from scratch using a unique design. I also set up all the tech stacks to make the website fully functional.
I was the main developer, creating the website from scratch using a unique design. I also set up all the tech stacks to make the website fully functional.
AstranaCare
https://www.astranacare.com/A WordPress website that helps you find healthcare clinics.
I was the leading developer who created the website using a unique design from scratch. I also worked with the Google Map API to show the clinic locations on the website. I set up all the tech stacks to make the website fully functional.
I was the leading developer who created the website using a unique design from scratch. I also worked with the Google Map API to show the clinic locations on the website. I set up all the tech stacks to make the website fully functional.
Astrana Health Management
https://www.networkmedicalmanagement.com/A WordPress website that provides administrative, technical, and professional support to various entities in the healthcare industry.
I was the leading developer who created the website from scratch using a unique design. I set up all the tech stacks to make the website fully functional.
I was the leading developer who created the website from scratch using a unique design. I set up all the tech stacks to make the website fully functional.
Astrana Health | Intranet
An internal website company.
I was the leading developer who created the website using a unique design from scratch. I also added features like SSO login using a Microsoft account (WPO365 plugin) and an internal store using WooCommerce. I set up all the tech stacks to make the website fully functional.
I was the leading developer who created the website using a unique design from scratch. I also added features like SSO login using a Microsoft account (WPO365 plugin) and an internal store using WooCommerce. I set up all the tech stacks to make the website fully functional.
Astrana Anthem
https://anthem.astranacare.com/A WordPress website that provides administrative, technical, and professional support to various entities in the healthcare industry.
I was the leading developer who created the website from scratch using a unique design. I set up all the tech stacks to make the website fully functional.
I was the leading developer who created the website from scratch using a unique design. I set up all the tech stacks to make the website fully functional.
Multisite WordPress Platform
https://jazzcuba.com/A WordPress multisite built for a travel agency with a unique custom-made theme and plugins.
I was the team lead and senior developer, and working closely with the team, we built a platform that allows the agency to create, promote, and sell their tours across their multisite. It also helps them follow every step of their clients to bring them the best experience in the process.
I was the team lead and senior developer, and working closely with the team, we built a platform that allows the agency to create, promote, and sell their tours across their multisite. It also helps them follow every step of their clients to bring them the best experience in the process.
The Joshua Network
A WordPress website for audio and visual content, with a custom WordPress theme built from scratch and the option to import podcasts from Megaphone.
I was the full-stack developer and was in charge of the server environment set up on DigitalOcean.
I was the full-stack developer and was in charge of the server environment set up on DigitalOcean.
Website for a Montreal Real Estate Agency
A WordPress website is built with a custom-made theme with a unique design provided by the client.
The website is also integrated with the provider of their listings (Centris) which allows them to get automatically daily updates of their properties, reducing the administration work considerably.
I was the front-end and back-end developer for this project.
The website is also integrated with the provider of their listings (Centris) which allows them to get automatically daily updates of their properties, reducing the administration work considerably.
I was the front-end and back-end developer for this project.
Education
2002 - 2008
Bachelor's Degree in Computer Science
University of Havana - Havana, Cuba
Skills
Libraries/APIs
jQuery, Authorize.net, WordPress REST API, Stripe API, Vimeo API, React, PHP CodeSniffer, WordPress API, Google Maps API, Google Maps JavaScript API 3, Parallax
Tools
GitLab, Composer, PhpStorm, Git, GitHub, Advanced Custom Fields (ACF), CircleCI, Jira, ACF PRO
Languages
PHP, HTML, CSS, JavaScript, SQL, SCSS, HTML5, CSS3
Platforms
WordPress, Mailgun, MacOS, Ubuntu, LAMP, DigitalOcean, HubSpot, WordPress VIP, Docker, WooCommerce, VWO
Storage
MySQL, WP Engine
Frameworks
Bootstrap, Laravel, PHPUnit, Tailwind CSS, Laravel Mix
Paradigms
Conversion Rate Optimization (CRO)
Other
WordPress Themes, WordPress Plugins, WordPress Installation, Web Host Manager (WHM), ESLint, WordPress Multisite, Technical Architecture, GitHub Workflows, Single Sign-on (SSO), WPForms, Figma to WordPress, WordPress Theme Customization, Forms, Analytics, Design, A/B Testing, Performance Optimization, Variant Configuration, Google Tag Manager, Google Analytics 4 (GA4), Landing Pages, Affiliate Tracking, Parallax Design, UI Components, Component Libraries
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