Naili Concescu, Developer in Mecca, Makkah Province, Saudi Arabia
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Naili Concescu

Verified Expert  in Engineering

Payment APIs Developer

Mecca, Makkah Province, Saudi Arabia
Toptal Member Since
June 6, 2018

Naili is a full-stack PHP developer with 15+ years of experience developing a range of websites, including startup landing pages and complex projects. He develops WordPress sites, custom plugins, and WordPress-compatible features. Naili is technically skilled and adept at developing effective solutions and top-quality products.


WordPress, PHP, MySQL, WordPress Plugins, MemberPress...
Advanced Custom Fields (ACF), WordPress, WordPress API, WordPress Plugins...
Website Genii
PHP, WordPress, WordPress Plugins, WordPress Themes, JavaScript, SCSS, Git...




Preferred Environment

Sequel Pro, Git, PhpStorm, OS X

The most amazing...

...project I've built is a web service for managing projects and teams built from scratch using modern techniques.

Work Experience

WordPress Developer

2022 - 2023
  • Extended and customized an existing WordPress theme and plugins to improve site functionality and user experience.
  • Developed a custom export report feature using PHP and WordPress APIs, allowing users to export data in CSV format based on specified criteria.
  • Utilized version control systems like Git to manage code changes and maintain codebase integrity, which resulted in streamlined development processes and easier maintenance.
  • Improved site stability and user experience by troubleshooting and resolving technical issues related to website functionality, performance, and security.
  • Designed and developed a custom API using PHP and WordPress APIs to allow external requests to create new posts on the site. It resulted in increased automation and improved efficiency for content creation.
Technologies: WordPress, PHP, MySQL, WordPress Plugins, MemberPress, PHPOffice (formerly PHPExcel), CSV Export, IT Support, WordPress REST API, Advanced Custom Fields (ACF), APIs

Wordpress Developer

2021 - 2022
  • Worked on an existing website built using Elementor.
  • Applied design changes and fixed the layout bugs using Elementor solutions or custom code solutions.
  • Implemented new custom features by creating custom plugins via the WordPress child theme following WordPress Codex standards.
Technologies: Advanced Custom Fields (ACF), WordPress, WordPress API, WordPress Plugins, WordPress Themes, Elementor, JavaScript, jQuery, Ajax, SCSS, PHP

Senior WordPress Developer

2021 - 2021
Website Genii
  • Implemented a list of customizations on a real estate WordPress theme.
  • Developed distance calculator form with multipoint options, place address autocomplete, and route distance, using Google APIs like Distance Matrix API, Geocoding API, and Routes API.
  • Built a list of customizations on an existing auctions WordPress website.
  • Collaborated with a theme built using the Genesis framework.
Technologies: PHP, WordPress, WordPress Plugins, WordPress Themes, JavaScript, SCSS, Git, APIs, Google Maps API, Google Geocoding API, NPM, Gulp, Google APIs, Ajax, WordPress API

Back-end WordPress Developer

2019 - 2019
Jake and Company, LLC (via Toptal)
  • Built a website using WordPress. A custom theme was created from the old non-WordPress site.
  • Recreated old website features running on Kendo UI with modern jQuery techniques.
  • Created a complex search interface with different filters and options.
Technologies: jQuery, JavaScript, PHP, Ajax, WordPress API, WordPress, WordPress Themes, WordPress Plugins

Back-end WordPress Developer

2018 - 2018
Jake and Company, LLC (via Toptal)
  • Created a custom WP theme from provided HTML and CSS files.
  • Created a custom plugin to collect third-party information via its custom API.
  • Integrated required features into the back end and front end of the website.
  • Integrated a complex search functionality using Solr.
  • Combined custom theme fields using the WordPress custom fields API.
Technologies: Advanced Custom Fields (ACF), Third-party APIs, Git, NPM, Bootstrap, WordPress, Ajax, WordPress API, JavaScript, PHP, WordPress Themes, WordPress Plugins

BuddyPress Developer

2018 - 2018
Zipline Digital
  • Created a reusable BuddyPress theme. A custom multistep signup process was implemented.
  • Used BuddyPress Codex and modern techniques to create a custom theme.
  • Used SCSS, Gulp, Git, and NPM for project code management.
Technologies: NPM, Git, Gulp, SCSS, BuddyPress, WordPress, Ajax, jQuery UI, WordPress API, JavaScript, PHP, WordPress Themes, WordPress Plugins

Senior Developer

2009 - 2018
  • Built various websites using modern technologies, including WordPress CMS.
  • Built a lot of custom WordPress plugins and themes using WordPress Codex.
  • Implemented integrations with various APIs like Google Maps, Facebook, Twitter, and more.
  • Implemented integrations of payment systems like PayPal and Authorize.Net.
  • Built a social network website with different complex features.
Technologies: Linux Administration, Apache, Subversion (SVN), Git, WordPress, JavaScript, CSS, HTML, MySQL, PHP, Ajax, Google Geocoding API, Telegram Bot API, Google APIs, APIs, Payment APIs,, jQuery UI, WordPress API, WordPress Themes, WordPress Plugins

PHP Web Developer

2008 - 2009
  • Built various websites.
  • Built a social network using CodeIgniter.
  • Built various websites using WordPress.
Technologies: WordPress, JavaScript, CSS, HTML, MySQL, PHP, Ajax, Google Geocoding API, Google APIs, APIs, Payment APIs, jQuery UI

PHP Web Developer

2006 - 2008
  • Built different websites from scratch.
  • Implemented the integration of payment systems like PayPal and Clickbank.
  • Contributed to the development of a complex page builder web service.
  • Built various web services for generating custom images, captcha codes, and PDF documents.
  • Implemented the integration with various APIs.
Technologies: JavaScript, HTML, CSS, MySQL, PHP, Ajax, Google Geocoding API, Google APIs, APIs, Payment APIs,, jQuery UI

Naama Jewelery

I developed a custom add-on for the WooCommerce Composite Products plugin using WooCommerce API. This add-on extended the product filters section with the addition of range sliders, providing users with a more intuitive and efficient means of browsing and filtering products.


Ricubai is a web service for managing project tasks and teams. I developed it from scratch and implemented various modern features, and an interactive messaging system, editing data without reloading the page. Implemented adaptive design.


A web platform for connecting employers with employees. I built it using WordPress and BuddyPress. I implemented various complex features, like complex user profiles, auto-generated CV in PDF format, complex search with filters, and messaging between users, groups, integration with Facebook API, and Google Maps API.


A social network which provides lots of interesting services for network members and product vendors. I built it using WordPress and BuddyPress. I developed the complex functionality of a few social networks, like Facebook profile wall, tweets, followers, and coupon deals. I built various custom plugins, custom theme, and other complex features.

Scordit Social Network

Scordit is a social product and wishlist sharing website. I developed the ability for users to create their own wish list as well as share it with each other to score the items and win prizes. I used CodeIgniter, built a complex search engine, and built various modern features using jQuery, JavaScript, and CSS techniques.

Scuba-Explorers Diving Club

A WordPress website, redesigned and integrated with a custom plugin which uses Google Maps API for browsing diving destinations.

Built an admin feature to create new flags on the map using latitude and longitude and to add a description that will be displayed in a popup window.


A website built from scratch using WordPress CMS. I developed a custom WordPress theme from HTML templates as well as implemented a slider and jQuery gallery. Integrated custom forms for the Contact Us page and Reservation page.

Advanced Home Energy

I developed a custom WordPress theme from HTML templates as well as integrated and customized a blog. Also, I implemented a jQuery slide gallery, lightbox, and some visual effects.

Artruby is a daily bulletin with one constantly updated front page. The website was built from scratch using WordPress. I developed a custom theme from HTML templates, and custom WordPress plugins. I implemented a custom review and rating system as well as a gallery.

A review website for video game fans. I built it using WordPress, created a custom theme from HTML templates, and implemented custom comment forms, various custom widgets, slider, custom registration form, and a voting system. I also integrated a Facebook share box.




.NET, Bootstrap


BuddyPress, WordPress API, jQuery UI, jQuery, Google Geocoding API, Google APIs, PHPOffice (formerly PHPExcel), WordPress REST API, Google Maps API, Facebook Login, PayPal API,, Telegram Bot API, ClickBank APIs


Advanced Custom Fields (ACF), Git, Subversion (SVN), WP-CLI, PhpStorm, Sequel Pro, Apache, NPM, Gulp, GitLab, Bitbucket


WooCommerce, WordPress, OS X


MySQL, MySQLi, LAMP Server, WP Engine


Third-party APIs, WordPress Plugins, WordPress Themes, APIs, Elementor, Ajax, CSV Export, Payment APIs, Linux Administration, SSH, MemberPress, IT Support, Data Products, Composite

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