Nestor is available for hire

Nestor Zaldivar

Verified Expert in Engineering

Software Developer

Montreal, QC, Canada

Toptal member since October 9, 2020

Expertise

PHP WordPress Development CSS MySQL JavaScript jQuery Git Authorize.Net Bootstrap React.js Laravel Tailwind CSS SSO Engineering

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

Suite Experience Group, LLC

WordPress, PHP, HTML, CSS, Figma to WordPress

Astrana Health

WordPress, React, Tailwind CSS, Advanced Custom Fields (ACF), Google Maps API...

Dentsu Aegis Network - Isobar

WordPress, WordPress VIP, Docker, CircleCI, GitHub, React, WordPress Plugins...

Experience

PHP - 11 years
CSS - 11 years
HTML - 11 years
WordPress - 11 years
MySQL - 11 years
JavaScript - 9 years
React - 2 years
Tailwind CSS - 1 year

Availability

Full-time

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

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.

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.

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.

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.

Astrana Anthem

https://anthem.astranacare.com/

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.

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.

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.

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

Tools

GitLab, Composer, PhpStorm, Git, GitHub, Advanced Custom Fields (ACF), CircleCI, Jira, ACF PRO

Languages

PHP, HTML, CSS, JavaScript, SQL, SCSS

Platforms

WordPress, Mailgun, MacOS, Ubuntu, LAMP, DigitalOcean, HubSpot, WordPress VIP, Docker, WooCommerce

Storage

MySQL, WP Engine

Frameworks

Bootstrap, Laravel, PHPUnit, Tailwind CSS, Laravel Mix

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

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