
Naili Concescu
Verified Expert in Engineering
JavaScript Developer
Medina, Al Madinah 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.
Portfolio
Experience
- PHP - 20 years
- JavaScript - 20 years
- WordPress API - 16 years
- jQuery UI - 16 years
- Payment APIs - 9 years
- Google Maps API - 3 years
- BuddyPress - 2 years
- WooCommerce - 1 year
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
Web Developer
Consignment Gallery
- Integrated the Shopify API into an existing WordPress site to fetch and render live product data from the Shopify store.
- Implemented product synchronization logic so catalog changes in Shopify were reflected in WordPress product listings and detail views.
- Built custom WordPress product archive and single-product templates powered by Shopify-sourced product data.
- Developed cart functionality in WordPress, enabling users to add products locally before continuing the purchase flow.
- Connected the WordPress cart flow to Shopify Checkout, preserving a custom front end while using Shopify for transaction completion.
Web Developer
Charles County Public Library
- Conducted a WCAG/ADA accessibility audit for a large WordPress public-library website, reviewing the homepage, shared templates, navigation patterns, and linked external platforms to define remediation scope.
- Identified accessibility issues through a combination of Lighthouse, and other automated tools, and manual WCAG review, including heading hierarchy, missing labels, focus visibility, contrast, and screen-reader usability problems.
- Remediated WCAG 2.2 AA/AAA issues after the audit, fixing color contrast, heading order, alt text, and other accessibility barriers across the site.
Experienced WordPress Developer
Website Genii LLC
- Delivered a WordPress Multisite membership platform with tiered subscription plans and centralized account administration for scout organizations.
- Built a custom transaction management system enabling unit leaders to track balances and bulk-process transactions across multiple member accounts.
- Implemented a custom authentication flow for registration and activation with secure token links and role‑based onboarding.
- Delivered a resource-sharing system enabling organizations to upload, categorize, and securely distribute documents with role-based access controls.
- Implemented interactive forms with centralized client- and server-side validation, improving submission accuracy and user experience.
- Built a Gulp and Webpack pipeline (Sass, Babel, Autoprefixer, sourcemaps, imagemin) to optimize assets, improve front‑end performance, and accelerate builds and deployments.
- Implemented an automated email notification system to trigger role-specific alerts for key site events and actions.
- Delivered a custom, responsive WordPress theme with a modular architecture to enable reusable components and maintainable layouts.
WordPress Developer
Pango
- Created a custom WordPress block theme tailored to client specifications.
- Converted Figma designs into a fully functional WordPress block theme.
- Developed multiple custom blocks using the WordPress Blocks API.
- Implemented mobile-responsive design to ensure seamless performance across devices.
- Provided solutions for complex design tasks using JavaScript to enhance user interaction and functionality.
WordPress Developer
KR Enterprises LLC, DBA Panda Copy
- Conducted routine site maintenance for an innovative SaaS platform to ensure optimal performance.
- Updated plugins to enhance functionality and security.
- Rectified site errors, maintaining a seamless user experience.
WordPress Developer
ClickThere
- 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.
Wordpress Developer
Teknicks
- 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.
Senior WordPress Developer
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.
Back-end WordPress Developer
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.
Back-end WordPress Developer
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.
BuddyPress Developer
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.
Senior Developer
ZamZamLab
- 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.
PHP Web Developer
Softreactor
- Built custom websites from scratch and maintained existing client sites using PHP, JavaScript, HTML, and CSS across a range of business projects.
- Developed a social networking platform with CodeIgniter, implementing core user features, custom back-end logic, and front-end interfaces.
- Delivered WordPress websites and customizations, including theme integration, content templates, plugin setup, and ongoing client updates.
PHP Web Developer
Acvanta
- Built custom websites from scratch and enhanced existing client projects using PHP, MySQL, JavaScript, HTML, CSS, and Ajax.
- Integrated payment gateways, including PayPal, Authorize.Net, and ClickBank, to support online payments and transaction workflows.
- Contributed to the development of a complex web-based page builder service with dynamic UI and custom back-end functionality.
- Developed web services for generating custom images, CAPTCHA codes, and PDF documents to support client platforms and tools.
- Implemented integrations with external APIs, including Google services and payment-related APIs, to extend site functionality.
Experience
Naama Jewelery
Ricubai
Quickpersonnel
Barkle
Scordit Social Network
Scuba-explorers Diving Club
I 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 pop-up window.
AeriaJet
Advanced Home Energy
Artruby
http://artruby.com/Comboclash
http://comboclash.com/Education
Bachelor's Degree in Computer Applications
Amity University - Noida, India
Skills
Libraries/APIs
BuddyPress, WordPress API, jQuery UI, jQuery, Google Geocoding API, Google APIs, PHPOffice (formerly PHPExcel), WordPress REST API, Shopify API, Google Maps API, Facebook Login, PayPal API, Authorize.net, Telegram Bot API, ClickBank APIs, Block API, React, Facebook API, REST APIs
Tools
Advanced Custom Fields (ACF), Figma, Git, Subversion (SVN), WP-CLI, PhpStorm, Sequel Pro, Apache, NPM, Gulp, GitLab, Bitbucket, Gutenberg Editor, Webpack
Languages
HTML5, PHP, JavaScript, CSS, HTML, SCSS, Sass, PHP 7, TypeScript, Python, GraphQL
Frameworks
.NET, Bootstrap
Platforms
WooCommerce, WordPress, Web, OS X, Blockchain
Storage
MySQL, MySQLi, LAMP Server, WP Engine, Database Management Systems (DBMS)
Paradigms
Responsive Layout, Human-computer Interaction (HCI), Human Interface Design, Object-oriented Programming (OOP)
Other
Third-party APIs, WordPress Plugins, WordPress Themes, APIs, Elementor, Ajax, CSV Export, Web Development, Payment APIs, Linux Administration, SSH, MemberPress, IT Support, Data Products, Composite, Custom Themes, WordPress Multisite, Gravity Forms, WordPress Customization, PhotoSwipe, Responsive Design, Custom WordPress, WordPress Theme Customization, Software Development, Business Communication, Information Technology, Operating Systems, Software Engineering, Environmental Science, Computational Statistics, Networks, IT Security, Cloud Computing, IT Project Management, Data Warehouse Mining, Fundamentals of E-Commerce, Artificial Intelligence (AI), Enterprise Resource Planning (ERP), ADA Compliance, Accessibility Auditing, Web Accessibility, Web Content Accessibility Guidelines (WCAG), Shopping Carts, Custom Plugins
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