Pedro is available for hire
Hire PedroPedro Germani Ghiorzi
Verified Expert in Engineering
Senior WordPress Developer
Campinas - State of São Paulo, Brazil
Toptal member since September 11, 2017
Bio
Pedro is an experienced web developer, software designer, and entrepreneur specializing in WordPress. Having managed and developed more than 70 projects worldwide, from small personal sites to high-traffic portals, he has consistently showcased his versatility and expertise. Pedro is eagerly anticipating his next challenge.
Portfolio
Nomos Glashüette GmbH
REST APIs, Vue, PHP, Git, Linux Servers, WordPress, Technical Architecture...
Welance GmbH Clients
WordPress, Docker, Continuous Integration (CI), JavaScript, PHP...
Toptal Clients
JavaScript, CSS, HTML, PHP, WordPress, Technical Architecture...
Experience
- Linux - 20 years
- PHP - 17 years
- WordPress - 17 years
- JavaScript - 16 years
- WordPress REST API - 6 years
- WooCommerce - 6 years
- Vue - 6 years
- WP-CLI - 6 years
Preferred Environment
Command Prompt (CMD), Git, Xdebug, Visual Studio Code (VS Code), Web Development, WordPress Plugins, Linux, Docker, GitLab, CI/CD Pipelines
The most amazing...
...WordPress project I've developed became the most visited independent WordPress site in Brazil, with more than 50 million visitors per month.
Work Experience
Lead Web Developer
2018 - PRESENT
Nomos Glashüette GmbH
- Developed a WordPress B2B website, Nomos-corner.com.
- Adapted and improved their watch engraving tool software made in Vue.
- Integrated an internal API with auxiliary tools for retailers, using PHP, Vue, and WordPress REST API.
- Implemented and suggested new improvements for the B2B websites.
Technologies: REST APIs, Vue, PHP, Git, Linux Servers, WordPress, Technical Architecture, User Experience (UX), User Interface (UI), Web Development, APIs, WordPress Plugins, GitHub, WordPress Themes, Gravity Forms, SCSS, API Integration, Back-end, Advanced Custom Fields (ACF), Websites, Blog Design, WordPress Design, WP-CLI, CI/CD Pipelines, Full-stack, Object-oriented Programming (OOP), WP All Import, WordPress SEO, Performance Optimization, Team Leadership, WordPress Migration, WooCommerce, Document Parsing, ACF PRO, Custom WordPress, UI Design, Front-end, LAMP, Zoom, Integration, Minimum Viable Product (MVP), Stripe, WordPress Page Builder, Themes, Plugin Customization, OpenAI API, Forms, Headless CMS, Responsive Web Design (RWD), CMS, Core Web Vitals, Data Migration, Payment Gateways, SQL Server, Website Migration, eCommerce, Back-end Development, Search Engine Optimization (SEO)
Senior Software Developer
2017 - PRESENT
Welance GmbH Clients
- Developed websites for big NGOs based in Germany and Switzerland: Salvation Army, Vier Pfoten, Amnesty International, Save the Children, and more.
- Tracked bugs and performed maintenance of 30+ running projects.
- Developed the CI structure to deploy the site automatically to development, staging, and production environments.
- Organized the requirements and implemented the tech stack for those companies' websites.
Technologies: WordPress, Docker, Continuous Integration (CI), JavaScript, PHP, Web Development, APIs, WordPress Plugins, Gatsby, Netlify, GitHub, WordPress Themes, WP Engine, Gravity Forms, SCSS, API Integration, Back-end, Advanced Custom Fields (ACF), Google Maps API, Websites, Divi Theme Builder, Blog Design, WordPress Design, WP-CLI, Docker Hub, GitLab CI/CD, CI/CD Pipelines, Full-stack, Object-oriented Programming (OOP), React, Video & Audio Processing, WP All Import, Kubernetes, WordPress VIP, WordPress SEO, Performance Optimization, GoDaddy, Team Leadership, WordPress Migration, WooCommerce, Document Parsing, ACF PRO, Custom WordPress, FacetWP, iOS, Airtable, Figma, UI Design, Front-end, Figma to WordPress, LAMP, Zoom, Integration, QuickBooks API, Minimum Viable Product (MVP), Payment APIs, Stripe, Auth0, ThemeForest, Local Listings, WordPress Page Builder, HubSpot, WP Rocket, Themes, Plugin Customization, OpenAI API, UI Animation, Forms, LearnPress, Headless CMS, REST APIs, Responsive Web Design (RWD), CMS, WordPress Security, Data Migration, Payment Gateways, SQL Server, Website Migration, eCommerce, Back-end Development, Search Engine Optimization (SEO)
Software Engineer
2016 - PRESENT
Toptal Clients
- Developed custom websites using WordPress for various clients around the world.
- Managed WordPress project teams, mixing developers, designers, and DevOps.
- Created and maintained custom WordPress plugins and themes.
- Improved the site performance and security of WordPress sites.
- Specialized in legacy WordPress websites, migrations, and refactors.
Technologies: JavaScript, CSS, HTML, PHP, WordPress, Technical Architecture, User Experience (UX), User Interface (UI), Web Development, APIs, WordPress Plugins, Learning Management Systems (LMS), Gatsby, Netlify, GitHub, WordPress Themes, Gravity Forms, SCSS, API Integration, Back-end, Advanced Custom Fields (ACF), Google Maps API, Websites, LearnDash, Divi Theme Builder, Blog Design, WordPress Design, CI/CD Pipelines, Full-stack, Object-oriented Programming (OOP), React, WP All Import, WordPress SEO, Performance Optimization, Team Leadership, WordPress Migration, Document Parsing, ACF PRO, Custom WordPress, iOS, Figma, UI Design, Front-end, Figma to WordPress, LAMP, Zoom, Integration, Minimum Viable Product (MVP), Payment APIs, Auth0, ThemeForest, Local Listings, WordPress Page Builder, WP Rocket, Themes, Plugin Customization, OpenAI API, UI Animation, Forms, Headless CMS, REST APIs, Responsive Web Design (RWD), CMS, WordPress Security, Data Migration, Payment Gateways, SQL Server, eCommerce, Back-end Development, Search Engine Optimization (SEO)
WordPress Developer
2015 - PRESENT
Freelancer
- Created WordPress plugins and websites for personal and corporate clients in Berlin, Germany.
- Consulted with clients on WordPress-related technical issues and architectural needs.
- Created and maintained a continuous integration using Docker and GitLab.
Technologies: Angular, NPM, Sass, Grunt, Timber, Mandrill, MySQL, Apache, Composer, Git, JavaScript, CSS3, HTML5, PHP, WordPress, Technical Architecture, User Experience (UX), User Interface (UI), Web Development, APIs, WordPress Plugins, GitHub, WordPress Themes, WP Engine, Gravity Forms, SCSS, API Integration, Back-end, Advanced Custom Fields (ACF), Websites, Divi Theme Builder, Blog Design, WordPress Design, Full-stack, Object-oriented Programming (OOP), WP All Import, Kubernetes, Performance Optimization, GoDaddy, WordPress Migration, Document Parsing, ACF PRO, Custom WordPress, Figma, UI Design, Front-end, LAMP, Zoom, Integration, QuickBooks API, Minimum Viable Product (MVP), Payment APIs, Stripe, Auth0, ThemeForest, WordPress Page Builder, Themes, Plugin Customization, OpenAI API, UI Animation, Forms, Headless CMS, REST APIs, Responsive Web Design (RWD), CMS, Data Migration, Payment Gateways, SQL Server, eCommerce, Back-end Development, Search Engine Optimization (SEO)
Senior Back-end Engineer
2024 - 2025
Fueled - 10up Division
- Engineered back-end solutions for a large-scale WordPress multisite platform serving 300+ websites for a major media group.
- Customized the WordPress Gutenberg editor to meet advanced editorial requirements.
- Developed a custom WP_Query integration with OpenSearch for optimized content search and retrieval.
- Implemented scalable, high-level solutions to support complex publishing workflows.
- Designed and maintained comprehensive unit tests for all major back-end features and integrations, ensuring code reliability and facilitating continuous integration.
- Collaborated with cross-functional teams to deliver robust REST API endpoints and integrations.
- Utilized Docker and Gitlab CI/CD for efficient development, automated testing, and deployment processes.
- Ensured platform performance, reliability, and security for a major media group's multisite installation.
Technologies: PHP, WordPress, Git, Amazon OpenSearch, Redis Cache, React, JavaScript, PHPUnit, Custom WordPress, Figma, UI Design, LAMP, Elasticsearch, Zoom, Integration, Minimum Viable Product (MVP), Full-stack, Auth0, Okta, WordPress Page Builder, Themes, Plugin Customization, OpenAI API, Forms, Headless CMS, REST APIs, Responsive Web Design (RWD), CMS, Core Web Vitals, WordPress Security, Data Migration, Payment Gateways, SQL Server, eCommerce, Back-end Development, Search Engine Optimization (SEO)
Head of Software Development
2016 - 2017
Instaff & Jobs GmbH
- Implemented coding standards and workflows for the company's development team.
- Hired PHP, Android, and iOS developers and created the interview process for selecting candidates.
- Created online systems to track the physical documents and certificates of the platform users and clients.
Technologies: REST APIs, CSS, HTML, JavaScript, MySQL, Propel, Kohana, PHP, Technical Architecture, User Interface (UI), Web Development, APIs, WordPress Plugins, GitHub, SCSS, API Integration, Back-end, Websites, Blog Design, Full-stack, Object-oriented Programming (OOP), Performance Optimization, Team Leadership, UI Design, Front-end, LAMP, Integration, Minimum Viable Product (MVP), Themes, Plugin Customization, OpenAI API, Forms, Data Migration, Payment Gateways, SQL Server, Website Migration, eCommerce, Back-end Development, Search Engine Optimization (SEO)
Happiness Engineer Trial
2015 - 2015
Automattic, Inc.
- Participated in the Brazilian Portuguese Happiness Engineer team creation trial period.
- Contributed to processes related to support globalization.
- Reported bugs on WordPress.com and Jetpack plugin.
- Contributed to WordPress.com Forums with user support.
Technologies: Customer Support, PHP, i18n, WordPress, GitHub, Websites, Blog Design, WordPress Design, WordPress Migration, ACF PRO, Custom WordPress, UI Design, LAMP, Themes
Partner | Operations
2012 - 2015
MOD Devices, LLC.
- Organized a successful Kickstarter campaign.
- Established communication with American, Chinese, and German companies and lawyers for hardware production.
Technologies: ARM, HTML5, Python, C++, LV2, Hardware, Audio, Linux, GitHub, Websites, Blog Design, WordPress Design, Minimum Viable Product (MVP), Forms, Back-end Development, Search Engine Optimization (SEO)
Owner | Director
2008 - 2015
HackLab/ Ldta.
- Founded Hacklab/ in Brazil as a web developer, building WordPress websites and other custom software, then directed a team of 9 developers and 3 designers, both on technical and RH areas and became chair of Finances and Projects of the company.
- Implemented several standards mainly ones related to Agile Development, improving the work environment and organizing software projects.
- Collaborated on and developed more than 70 WordPress websites and over 20 custom software projects.
- Managed and developed one of the largest independent WordPress websites in Brazil, with over 50 million visitors per month at 2015.
- Created and published many open source software including several WordPress plugins and developer tools.
Technologies: Linux Server Administration, MySQL, Python, Git, JavaScript, CSS3, HTML5, WordPress, PHP, Unix, Technical Architecture, WordPress Plugins, Learning Management Systems (LMS), GitHub, WordPress Themes, API Integration, Back-end, Websites, Blog Design, WordPress Design, Full-stack, Performance Optimization, GoDaddy, WordPress Migration, WooCommerce, ACF PRO, Custom WordPress, UI Design, LAMP, Minimum Viable Product (MVP), Payment APIs, WordPress Page Builder, Themes, Plugin Customization, OpenAI API, UI Animation, Forms, REST APIs, CMS, SQL Server, Website Migration, Moodle, Back-end Development, Search Engine Optimization (SEO)
Owner | Web Developer
2007 - 2008
Fazsite
- Collaborated with clients to successfully manage projects.
- Created websites for different clients focusing on culture and fashion over the course of one year.
Technologies: WordPress, HTML, CSS, JavaScript, PHP, GitHub, WordPress Themes, Websites, Blog Design, WordPress Design, WordPress Migration, UI Design, LAMP, Minimum Viable Product (MVP), Themes, Plugin Customization, Forms, Back-end Development
Video Editor | Art Photographer
2001 - 2005
Videomaker Freelancer
- Edited videos and images.
- Communicated with clients.
Technologies: Adobe After Effects, Adobe Premiere Pro, Video Capture, Audio Capture
Electronic Technician
1999 - 2000
Floripa Tecnologia
- Assembled computers and installed all required software.
- Developed television/broadcasting related software in C++.
Technologies: Hardware, PC, C++
Experience
Bannoura Sinks Corp DBA Strictly Kitchen and Bath
http://strictlykb.comTuned the WP Engine caching system to improve load times for logged-out users. I also analyzed the plugin setup to ensure optimization and avoid feature overlapping. I improved the site for page speed metrics and testing.
World Vision Austria
https://worldvision.atA WordPress-based website to handle the donations made by people to the Word Vision AT. I defined and built the WordPress installation, created a page custom builder, and coded all the back end. I also implemented the Gitlab CI/CD structure, using Docker.
Salvation Army Switzerland Website
https://heilsarmee.chA customized WordPress multisite/multilanguage/multidomain project. Heilsarmee is the Swiss affiliate of the Salvation Army NGO. The project aimed to relaunch its main website, turning it into a multisite installation that can be used to spawn new websites for the other branches.
Amnesty International Switzerland
https://action.amnesty.ch/A WordPress-based website to handle the donations made by people to the Amnesty DE and CH projects. I defined and built the WordPress installation, created a page custom builder, and coded all the back end. I also implemented the Gitlab CI/CD structure using Docker.
Amnesty International Germany
https://helfen.amnesty.de/A WordPress-based website to handle the donations made by people to the Amnesty DE and CH projects. I defined and built the WordPress installation, created a page custom builder, and coded all the back end. I also implemented the Gitlab CI/CD structure using Docker.
CARE Austria
https://care.atA WordPress-based website to handle the donations made by people to the CARE Austria projects. I defined and built the WordPress installation, created a page custom builder, and coded all the back end. I also implemented the Gitlab CI/CD structure, using Docker.
Tenjin
https://www.growthfullstack.com/This website was done in WordPress headless, with Gatsby as the front end. I was responsible for the back end, building it from scratch and implementing GraphQL queries on the front end. My responsibilities included the deploys made in Gatsby cloud.
Mailchimp for WooCommerce
https://wordpress.org/plugins/mailchimp-for-woocommerce/The Mailchimp for WooCommerce plugin is Mailchimp's official WordPress plugin to synchronize WooCommerce stores with Mailchimp audiences.
This is an ongoing project via Toptal that I joined in 2019. As a PHP/WordPress specialist and consultant, my work includes planning the technical aspects, developing new features, and solving bugs.
This is an ongoing project via Toptal that I joined in 2019. As a PHP/WordPress specialist and consultant, my work includes planning the technical aspects, developing new features, and solving bugs.
Redmako Learning
This is a project I joined in 2018 via Toptal. Redmako is an Australian online learning center focused on innovation that led it to develop a virtual classroom and is a pioneer of virtual reality learning across Australia. I created customizations to the WordPress website, including LearnDash (learning management system), WooCommerce (eCommerce), and a REST API to communicate with the VReddo virtual reality system.
Naseba
I joined this project from 2017 to 2019 via Toptal. Naseba creates growth opportunities, connecting people, partners, and ideas by bringing global opportunities to their clients, focusing on liquid growth markets. I developed a custom WordPress theme from a PSD layout and customized the WP Bakery Page Builder to achieve the client's needs for a flexible and concise layout while bringing edit power to the site's pages.
Reviver Auto
2017 - via Toptal
Reviver is the creator of the first digital license plate for cars. They are on a mission to establish a universal connected vehicle innovation platform by reviving legacy automotive solutions and making them fully interactive, robust, and connected.
I developed their website using WordPress.
Reviver is the creator of the first digital license plate for cars. They are on a mission to establish a universal connected vehicle innovation platform by reviving legacy automotive solutions and making them fully interactive, robust, and connected.
I developed their website using WordPress.
Lena McLaughlin Website
2017 - Via Toptal.
Developed a custom website to Lena McLaughlin, a high school soccer player from the US. Built from scratch, using the DIVI theme and a few plugins, the website is a welcome profile for college football coaches to get to know the player.
- Assembled a WordPress website using the DIVI theme.
- Configured domain and final server.
- Built custom DIVI modules for football games and tournaments agenda.
Developed a custom website to Lena McLaughlin, a high school soccer player from the US. Built from scratch, using the DIVI theme and a few plugins, the website is a welcome profile for college football coaches to get to know the player.
- Assembled a WordPress website using the DIVI theme.
- Configured domain and final server.
- Built custom DIVI modules for football games and tournaments agenda.
German Green Party
https://www.gruene-bw.de/2017-2019. Maintained WordPress website of Baden-Württemberg Grüne Partei, through Welance.com.
Schmutz Berlin
2016 - present. Schmutz is a comprehensive guide for concerts, music news, and all things live music in Berlin. Pedro joined the project in 2016 as its only developer. Built in WordPress, it has interesting features such as email subscriptions using Mandrill, Google Maps integration, and multi-language.
InStaff & Jobs GmbH
http://instaff.jobs2016 -2017. InStaff is a software-as-a-service enhanced online marketplace that offers a full-service solution for short term staffing. In other words, a platform where businesses can book temporary staff. Pedro served as the lead developer coding mainly in PHP using the framework Kohana and Propel ORM. He also improved the company software workflow implementing efficient software development standards and agile philosophies.
Vitali Gelwich Website
http://vitaligelwich.com/2016. Partnering with Enrico Icardi, Pedro developed this website with an unusual layout. The main challenges were the customized grid and image gallery. Built with the static file-based Kirby CMS.
Lizzy Courage Website
http://lizzycourage.de2016. Lizzy is an art director and designer based in Berlin. Her projects include conceptual development for print and digital design. She also accompanies photoshoots and manages creative supervision. Pedro developed her website using WordPress, coding it all, and providing knowledge about content structure creation.
Flexperto Website
http://flexperto.com2015. Flexperto is a platform to incorporate video-enabled communication in your day-to-day interaction with your customers. Pedro developed the website's theme using WordPress from a provided custom layout, building all functionalities as plugins, HTML, CSS, and Visual Studio components.
Catraca Livre
http://www.catracalivre.com.br2008 - 2015. Catraca Livre is one of the most visited independent WordPress websites in Brazil. At the beginning of 2015, it reached the mark of 50 million visitors per month. Pedro began contributing as a freelancer and later on transitioned the project to Hacklab/. The project initiated the development of many plugins published in the public WordPress repository. Since it was such a large project, many technologies were used including Nginx, Varnish, Vagrant, Composer, PHPUnit, Selenium, and more.
MOC Brazil
http://mocbrasil.com2009-2011. MOC Brazil (Oncology Online Manual) site is an online version of a book. Pedro managed the project and developed a system that parses XML files generated by Adobe InDesign, and updates the whole site every year with the same files used to print the paper version.
Hacklab/
2008 - 2015. Pedro co-founded Hacklab/, a Brazilian company with high ethical values and an enriching open form of partnership, that employed up to 23 developers and designers. It is one of the most respected WordPress development companies in the country, and have worked on more than 70 WordPress projects, ranging from small personal sites to huge multi-sites with caching, geo-referenced posts, mobile apps, events agendas, and more. Also during that time, he helped organize WordCamps and WP Hacker Days in Brazil. Contributed as developer and director of the company for eight years until relocation to Germany.
Benner Nawman Website Consolidation and Unification
http://bnproducts.comA consolidation of two websites (bnproducts.com and benner-nawman.com) of two different platforms into a couplet of websites that share the same WordPress theme.
The work was to modernize and optimize the theme so that it is fully customizable and can be used by the two websites. The data structure, layouts, and custom fields were organized and added to the theme settings.
The work was to modernize and optimize the theme so that it is fully customizable and can be used by the two websites. The data structure, layouts, and custom fields were organized and added to the theme settings.
Education
1999 - 2007
Bachelor's Degree in Computer Sciences
Universidade Federal de Santa Catarina - Florianópolis, Brazil
1995 - 1997
Technical High School Diploma in Industrial Electronics
Escola Salesiana São José - Campinas, Brazil
Skills
Libraries/APIs
REST APIs, WordPress REST API, Google Maps API, jQuery, WooCommerce API, Mailchimp API, WordPress API, React, YouTube API, Vimeo API, Propel, Facebook API, Vue, QuickBooks API, Stripe, OpenAI API, Socket.IO, Web Audio API, Node.js, Google Places API
Tools
Git, Vim Text Editor, Subversion (SVN), WP-CLI, Advanced Custom Fields (ACF), WP All Import, ACF PRO, Auth0, NPM, Composer, Xdebug, PhpStorm, Mailchimp, GitHub, LearnDash, Zapier, Figma, Zoom, LearnPress, Apache, Grunt, Adobe Premiere Pro, Adobe After Effects, Bower, GitLab, GitLab CI/CD, Docker Hub, Amazon OpenSearch, Moodle
Languages
HTML, JavaScript, PHP, HTML5, CSS, Flash ActionScript, Bash Script, C++, Python, Timber, CSS3, Sass, SCSS, GraphQL
Frameworks
Bootstrap, Ember.js, Kohana, Angular, AngularJS, CakePHP, Laravel, Redux, PHPUnit
Paradigms
Object-oriented Programming (OOP), UI Design, Responsive Web Design (RWD), Agile Software Development, Search Engine Optimization (SEO), REST, Test-driven Development (TDD), Continuous Integration (CI), Management, Web Performance Optimization (WPO)
Platforms
WooCommerce, Ubuntu, Visual Studio Code (VS Code), WordPress, Linux, Web, LAMP, Apache2, MacOS, Netlify, Kubernetes, iOS, HubSpot, PC, Unix, Mandrill, Amazon Web Services (AWS), Craft CMS, Docker, WordPress VIP
Storage
WP Engine, JSON, MySQL, Propel ORM, Elasticsearch, Redis Cache
Other
Web Development, Command-line Interface (CLI), Client Management, WordPress Multisite, Full-stack, APIs, WordPress Plugins, Gravity Forms, API Integration, Back-end, Websites, Blog Design, WordPress Design, Performance Optimization, GoDaddy, Team Leadership, WordPress Migration, DOM, Document Parsing, Custom WordPress, FacetWP, Front-end, Integration, Minimum Viable Product (MVP), ThemeForest, WordPress Page Builder, Themes, Plugin Customization, Forms, Headless CMS, CMS, Data Migration, SQL Server, Website Migration, eCommerce, Back-end Development, Image Manipulation, Linux Server Administration, Customer Support, Video Editing, Cloudflare, Action Scheduler, Technical Architecture, User Experience (UX), User Interface (UI), Learning Management Systems (LMS), Gatsby, WordPress Themes, Elementor, Divi Theme Builder, WordPress SEO, Airtable, Figma to WordPress, Payment APIs, Local Listings, Okta, WP Rocket, UI Animation, Core Web Vitals, WordPress Security, Payment Gateways, Command Prompt (CMD), Hardware, Audio Capture, Video Capture, Audio, LV2, ARM, i18n, Linux Servers, Computer Science, Industrial Electronics, Kirby, Electronics, CI/CD Pipelines, Video & Audio Processing, Load Time, Performance, Website Performance, Caching, Page Speed Optimization
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