Publication
Magento Performance Optimization: A Complete Guide to Faster Load Speeds
https://www.toptal.com/developers/magento/magento-performance-optimization-guide
Paul-Catalin is available for hire
Hire Paul-CatalinPaul-Catalin Mestereaga
Verified Expert in Engineering
Software Developer
Timișoara, Timiș County, Romania
Toptal member since March 29, 2017
Bio
Paul is a devoted Magento developer, a real go-getter, and a person who is genuinely passionate about the web. Paul has helped eCommerce companies start or expand their business by building custom Magento stores, 3rd-party integrations, and efficient systems that drive impact and inspire trust.
Portfolio
Silver Gold Bull
Magento, Zoho API, Zoho CRM, Zoho
Unified Districts
MySQL, Magento 2, HTML5, PHP, Magento, Magento 1, Magento API, Magento Modules...
Spanx
CSS, MySQL, Magento 2, PHP, Magento, Magento API, Magento Modules, HTML...
Experience
- PHP - 13 years
- MySQL - 9 years
- JavaScript - 8 years
- Magento - 7 years
- Magento 2 - 6 years
- HTML5 - 5 years
- CSS3 - 5 years
- Laravel - 3 years
Preferred Environment
Git, PhpStorm, Linux, MacOS
The most amazing...
...project I've worked on is a custom module for managing the sales prices for a Magento shop available in five countries with more than 30,000 products.
Work Experience
Senior Magento Developer (Freelance)
2021 - PRESENT
Silver Gold Bull
- Refactored and built the integration between Magento and Zoho CRM.
- Supported the sales team in developing new features for Magento and Zoho CRM integration.
- Built a two-way integration between Zoho CRM and Magento.
- Optimized and secured the process for data synchronization between Zoho and Magento.
Technologies: Magento, Zoho API, Zoho CRM, Zoho
Senior Magento Developer
2017 - 2025
Unified Districts
- Took ownership of Magento 2 builds and optimizations for niche eCommerce brands in the UTV and auto parts space.
- Migrated multiple Magento 1 stores to Magento 2 with minimal downtime and improved performance.
- Refactored and maintained a custom CMS powering complex year/make/model product data across multiple storefronts.
- Implemented conversion-focused UX improvements, including custom configurators and streamlined filtering.
- Conducted usability reviews and resolved navigation and cart flow friction points, reducing cart abandonment.
- Implemented custom Magento 2 modules for order exports, API-based product synchronization, and dynamic filtering.
- Collaborated with stakeholders to align tech solutions with conversion and customer experience goals.
- Participated in agile sprints and operated with full autonomy while delivering high-impact improvements.
Technologies: MySQL, Magento 2, HTML5, PHP, Magento, Magento 1, Magento API, Magento Modules, CSS3, JavaScript, Git, Laravel, Object-oriented Programming (OOP), Shell Commands, CSS, eCommerce, Plugins, Performance Tuning, Magento Extension Development
Senior Magento Developer (Freelance)
2018 - 2021
Spanx
- Assisted in the upgrade from Magento 2.1 to Magento 2.2.
- Created custom features for different parts of the sales funnel.
- Developed the plan and architecture for multiple stores and languages.
- Implemented 3rd-party integrations with different marketing platforms.
- Collaborated on customizing the returns process (RMA) and improving customer experience during this process.
Technologies: CSS, MySQL, Magento 2, PHP, Magento, Magento API, Magento Modules, HTML, Object-oriented Programming (OOP), Model View Controller (MVC), eCommerce, Plugins, Performance Tuning, Magento Extension Development
Magento Developer
2013 - 2018
Opticien24
- Developed a Magento platform, including maintaining, updating, and creating custom modules following the Magento guidelines, efficiency standards, and optimization techniques.
- Worked with a Magento store with over 30,000 products and available in five countries and six languages, where optimization and speed were always considered a must.
- Created and updated modules that ensured product management, sales management, and order exportation and provided custom statistics.
- Built an automated tool for pupillary distance calculation and a virtual eyeglasses try-on module.
Technologies: MySQL, Magento 2, HTML5, PHP, Magento, Magento 1, Magento API, Magento Modules, CSS3, JavaScript, Git, Windows, Adobe Photoshop, Illustrator CC, CSS, eCommerce, Plugins, Performance Tuning, Magento Extension Development
Magento Developer (Freelance)
2017 - 2017
Athena Solutions
- Involved in building new Magento stores for sports equipment.
- Created the architecture for new products and specific product pages.
- Configured the Magento 2 platform for multiple languages and currencies.
- Integrated a new design in a Magento theme using JavaScript, HTML5, and CSS3.
- Worked closely with the project manager, designer, and translators.
Technologies: MySQL, Magento 2, HTML5, PHP, Magento, Magento 1, Magento API, Magento Modules, CSS3, JavaScript, CSS, eCommerce, Plugins, Performance Tuning, Magento Extension Development
Magento Developer
2014 - 2014
Laboratoire E-Sciences SA
- Created a responsive theme for the Magento store using CSS3 and HTML5.
- Optimized the website for mobile use and decreased the website load speed.
- Crafted custom modules that manage doctors, pharmacies, and fidelity programs.
Technologies: MySQL, Magento 2, HTML5, PHP, Magento, Magento 1, Magento API, Magento Modules, CSS3, JavaScript, Object-oriented Programming (OOP), CSS, eCommerce, Plugins, Performance Tuning, Magento Extension Development
Software Developer (Intern)
2012 - 2012
Fraunhofer IPA
- Implemented new gestures for technical multi-touch applications.
- Developed software to test gestures using the multitouch API of Windows 7.
- Developed software to implement new gestures for the multitouch API of Windows 7.
Technologies: C++, Object-oriented Programming (OOP), Windows
Experience
Instagram Pro Extension for Magento
An Instagram pro extension for Magento that allows people to link Instagram pictures to Magento products and display them on the product page. The extension was published in the Magento marketplace.
360home | Real Estate Marketplace with Virtual Tours
This is a marketplace for real estate with virtual tours of the properties. I built the back end in PHP using WordPress as CMS and developed a custom front-end framework in JavaScript for the virtual tours. The virtual tours were made of 360-degree images.
Virtual Try-on for Glasses
I built a virtual try-on module in JavaScript, allowing users to try their glasses online before purchasing. The module calculated the pupillary distance and included both photo and video options using a webcam and 3D models of the glasses with face-tracking technology.
Education
2012 - 2014
Master's Degree in Computer Science (Web and Information Systems)
Vrije Universiteit Brussel - Brussels, Belgium
2008 - 2012
Bachelor of Applied Science Degree in Systems Engineering, Automation, and Applied Informatics
Politehnica University of Timișoara - Timisoara, Romania
2004 - 2008
Baccalaureate Degree in Mathematics and Computer Science
Decebal National College - Deva, Romania
Skills
Libraries/APIs
Zoho API
Tools
Magento Modules, PhpStorm, Git, Adobe Photoshop, Illustrator CC
Languages
CSS3, JavaScript, PHP, HTML5, CSS, C++, HTML
Paradigms
Object-oriented Programming (OOP), Model View Controller (MVC), Object-relational Mapping (ORM)
Platforms
Magento API, Magento 2, Magento 1, Magento, Magento Extension Development, MacOS, Windows, Linux, Zoho CRM
Storage
MySQL
Frameworks
Laravel, Zend Framework, PHP MVC
Other
Freelancing, eCommerce, Plugins, Performance Tuning, Shell Commands, APIs, CSS5, Zoho
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