
Ionuț Dinu
Verified Expert in Engineering
WordPress Developer
Iași, Iași County, Romania
Toptal member since June 17, 2021
Ionuț is a WordPress and PHP developer with 16 years of experience, specializing in inherited and long-running codebases. He audits legacy WordPress installations, isolates technical debt, fixes what is broken, and takes over maintenance from departing developers and agencies. His work covers custom plugin development, API and payment integrations, hosting migrations, and performance optimization, and he uses AI-assisted tooling to move quickly through unfamiliar code.
Portfolio
Experience
- Full-stack - 16 years
- PHP - 16 years
- Web Development - 16 years
- WordPress - 16 years
- Page Speed Optimization - 13 years
- JavaScript - 12 years
- REST APIs - 12 years
- Google Ads - 2 years
Work Experience
Founder, Full-stack Developer & Performance Marketer
CC-ONRC.ro
- Built and operated a WooCommerce-based service platform in a highly competitive Romanian ad market, owning the entire funnel from ad copy to checkout.
- Manage Google Ads search campaigns end-to-end, including a shared portfolio, Target CPA strategy to regulate hourly auction visibility, and custom scripts for automated bid management.
- Ran continuous A/B experiments on landing page copy, layout, and ad placement, most recently split-testing absolute top-of-page against standard top-of-page positioning for conversion impact.
- Diagnosed landing page experience as the binding quality score constraint and rebuilt page content around search intent, transparency, and trust signals, using Auction Insights and competitor analysis to guide priorities.
- Engineered the site for top PageSpeed scores and Core Web Vitals compliance across desktop, tablet, and mobile.
WordPress Expert | Full-stack Web Developer
WebExpert
- Handled client-facing tasks, from requirement gathering to delivery.
- Developed dozens of responsive websites, mainly based on WordPress and WooCommerce, from simple presentation websites to online stores and RSS news aggregators.
- Managed online marketing campaigns through Google and Facebook Ads.
Senior WordPress Developer
AG5 B.V.
- Worked closely with the head of marketing to improve website performance, design, and features, and fix various issues.
- Created a global block system based on ACF for easier content management across the pages.
- Streamlined deployments to the server with a custom Git setup.
WordPress Developer
TDQ Media LLC
- Transitioned from using the Elementor website builder to simplify the site's structure.
- Implemented best coding practices and optimized the website for improved performance and security.
- Implemented ads, conversion tracking, and on-site search engine optimization (SEO).
Lead Developer
WPJobster
- Built and managed a small local team to develop, maintain, and provide support for the company's WordPress theme and plugins.
- Defined best practices, coding standards, and processes, and slowly handed over the main development pipeline to the new team.
- Provided technical expertise while planning for new features and extensions.
- Built the WordPress REST API for the iOS and Android apps and worked closely with the external collaborator who was in charge of developing the apps.
- Took over development for the iOS and Android apps, improved and customized them, compiled the builds, and submitted several dozen releases to the App Store.
- Integrated 3rd-party APIs, such as Facebook, LinkedIn, Stripe, PayPal, Twilio, OpenExchangeRates, Google Places, TomTom, and more.
- Developed various in-house extensions and integrations for Easy Digital Downloads, HelpScout, and other software that we were using.
- Configured the company's servers, migrated services, and performed server maintenance.
Full-stack WordPress Developer
WPJobster
- Transitioned a custom built WordPress marketplace theme to an installable and customizable one.
- Fixed critical security issues of the theme and included Git to the development workflow.
- Handled update releases for the theme and various plugins, taking into account backwards compatibility with the previous versions.
- Handled interviewing and onboarding temporary remote developers to speed up development for specific new features.
Full-stack WordPress Developer
VeryCreative
- Developed several custom WordPress websites, handling the whole process after design handover.
- Handled client communication for most of the assigned projects.
- Oversaw deployment, maintenance, bug-fixing, and new feature requests for all assigned projects.
Web Developer
Self-employed
- Developed various entertainment websites reaching a peak of around 500,000 monthly visits combined.
- Conducted the on-site and off-site search engine optimization campaigns.
- Monitored the performance and optimized the AdSense ad placements.
- Built my own ad network based on OpenX, delivering over 6,000,000 monthly ad impressions.
Experience
CC-ONRC.ro - Document Retrieval Service
http://cc-onrc.roAG5 Skills Management Software
https://www.ag5.com/Artist Website for DJ John Junior
https://johnjunior.ro/Service Marketplace Solution for WordPress
Some of my responsibilities included the following:
• Built and managed the development team.
• Provided technical expertise for new features and extensions.
• Released monthly updates for the theme and plugins.
• Integrated dozens of external REST APIs.
• Built the REST API for the iOS and Android apps.
• Developed in-house extensions and integrations.
• Configured and performed maintenance on the company's servers.
Online Store for Valerio
Dental Clinic Website for Dr. Emilia Mosnegutu
The client’s challenge was that outdated online directory listings were showing incorrect phone numbers and addresses, causing patients to contact the wrong location. Because many directories wouldn’t update or respond, I registered a new domain and created a fresh website designed to outrank the old listings. After launching the site, adding the clinic to Google Maps, and updating the directories we could access, the correct information quickly rose to the top of search results—effectively solving the issue.
RSS News Feeds Aggregator
Education
Coursework Toward a Bachelor's Degree in Computer Science
Alexandru Ioan Cuza University - Iași, Romania
Certification in Mathematics and Computer Science
Unirea National College - Focșani, Romania
Skills
Libraries/APIs
REST APIs, WordPress REST API, WordPress API, Google AdSense, jQuery, Google Places API, Facebook API, Stripe API, PayPal API, Twilio API, Google Maps, WooCommerce API, Stripe, Stripe Connect, Playwright
Tools
Gutenberg Editor, Advanced Custom Fields (ACF), PageSpeed, Git, GitHub, Figma, Adobe Photoshop, NGINX, Brizy, TomTom, Slack, Basecamp, Google Analytics, Google Optimize, HelpScout, WPML, Hotjar, Zapier, PhpStorm, Zed
Languages
PHP, HTML, CSS, HTML5, CSS3, JavaScript, XML, SCSS, SQL
Paradigms
Responsive, Responsive Web Design (RWD), Responsive Development, Search Engine Optimization (SEO), Web App Design, Object-oriented Programming (OOP), Model View Controller (MVC), UI Design, UX Design, Conversion Rate Optimization (CRO), Pay-per-Click (PPC)
Platforms
WordPress, WooCommerce, Shopify, VWO, Google Ads, iOS, Android, DigitalOcean, Linux, Docker, MacOS, Amazon Web Services (AWS), Visual Studio Code (VS Code), HubSpot
Storage
WP Engine, Database Management, Databases, MySQL, Amazon S3 (AWS S3)
Frameworks
Ionic, Bootstrap
Industry Expertise
Marketing
Other
Web Technologies, Web Development, PSD to WordPress, Responsive UI, HTML to WordPress, WordPress Themes, WordPress Plugins, WordPress Design, Plugins, Performance, Elementor, Pixel Perfect, Monetization, Website Performance, Performance Optimization, Customer Portals, Custom Themes, Page Speed Optimization, GTmetrix, Semantic UI, Full-stack, Payment APIs, API Integration, Webhooks, Optimization, User Experience (UX), A/B Testing, Google Tag Manager, User Interface (UI), Back-end, SEO Tools, Integration, Landing Pages, Computer Science, Data Structures, Operating Systems, Networks, Algorithms, Programming Languages, Compilers, Facebook Ads, OpenExchangeRates API, HTTP Server, RSS Feeds, HTTP, Transactional Emails, Animation, APIs, Stripe Subscriptions, Affiliate Marketing, Gravity Forms, Customer Relationship Management (CRM), Google Analytics 4 (GA4), Avada, Security, Copywriting, Cloudflare, Core Web Vitals, Digital Marketing, Ad Campaigns
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