Ratko Solaja, Developer in Novi Sad, Vojvodina, Serbia
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Ratko Solaja

Verified Expert  in Engineering

WordPress Developer

Novi Sad, Vojvodina, Serbia

Toptal member since September 7, 2016

Bio

With over 10 years of WordPress expertise, Ratko specializes in crafting bespoke websites that are tailored to each client’s unique needs. His experience spans custom plugin and theme development (classic, hybrid, and block-based), API integrations, and eCommerce solutions. From creating custom APIs to managing complex migrations, Ratko’s focus is on delivering high-quality, fully customized solutions that engage and inspire, going beyond generic approaches to meet specific business goals.

Portfolio

Simplicity, LLC
WordPress, PHP, jQuery, JavaScript, CSS3, HTML5, Bedrock, Sage, WooCommerce...
CRIO, Inc
WordPress, PHP, JavaScript, LearnDash, Sage 10, Bedrock, UI Design, CSS, HTML...
Speck
WordPress, Bedrock, Sage 9, Elementor Pro, Elementor, UI Design, JavaScript...

Experience

  • WordPress Plugins - 10 years
  • WordPress - 10 years
  • PHP - 10 years
  • HTML5 - 9 years
  • WooCommerce - 9 years
  • Object-oriented Programming (OOP) - 7 years
  • WordPress Theme Design - 7 years
  • Advanced Custom Fields (ACF) - 4 years

Availability

Full-time

Preferred Environment

WordPress, MacOS, WordPress Plugins, WordPress Themes, WP-CLI

The most amazing...

...project I’ve worked on was a fully bespoke help center for a clinical research company featuring BigQuery integration, a custom forum, a marketplace, and LMS.

Work Experience

Senior WordPress Developer

2016 - PRESENT
Simplicity, LLC
  • Developed websites for the country's largest media and news organizations, including prominent names like Dnevni List Danas, Radar, CityMagazine, and Nasa Mreza.
  • Engineered a versatile booking plugin featuring a dynamic calendar that handles single or multiple-day bookings, even when split across weeks or months.
  • Built WooCommerce stores with advanced features, such as custom payment methods, memberships, and subscription services, tailored to meet unique client needs.
Technologies: WordPress, PHP, jQuery, JavaScript, CSS3, HTML5, Bedrock, Sage, WooCommerce, UI Design, CSS, HTML, WordPress Themes, WordPress Design, User Experience (UX), User Interface (UI), Responsive Design, Gutenberg Editor, SQL, Web Design, Web Development, WordPress SEO, WordPress Security, SEO Tools, API Integration, APIs, WordPress Customization, Google Analytics 4, OneTrust, Third-party Integration, Search Engine Optimization (SEO), Figma, Figma to WordPress, Communication, Payment APIs, UX Design, Websites, Amazon Web Services (AWS), Mailchimp, MySQL, Stripe, Mobile UI, Servers, PHP 8, Yoast SEO, Payment Gateways, Full-stack Development, Marketplaces, Subscriptions, eCommerce, MemberPress, WordPress API

Senior WordPress Developer

2021 - 2024
CRIO, Inc
  • Developed a fully tailored marketplace for purchasing study designs, including features like product tracking and a CSV import script that seamlessly adds, updates, or removes products.
  • Designed a comprehensive partner directory from scratch, enabling partners to showcase their profiles and services and connect directly with clients through the help center.
  • Crafted a new marketing website from the ground up, utilizing Bedrock and Sage 10 for a modern, efficient, and scalable solution.
  • Implemented robust user authentication flows—including login, registration, and password recovery—while managing site options across various user roles.
Technologies: WordPress, PHP, JavaScript, LearnDash, Sage 10, Bedrock, UI Design, CSS, HTML, WordPress Themes, WordPress Design, User Experience (UX), User Interface (UI), Responsive Design, Gutenberg Editor, SQL, Web Design, Web Development, WordPress SEO, WordPress Security, SEO Tools, API Integration, APIs, WordPress Customization, Third-party Integration, Search Engine Optimization (SEO), Figma, Figma to WordPress, Communication, UX Design, Websites, Mailchimp, MySQL, Mobile UI, Servers, PHP 8, Yoast SEO, Full-stack Development, Marketplaces, eCommerce, WordPress API

Senior WordPress Developer

2022 - 2023
Speck
  • Spearheaded the development of an LMS tailored for medical professionals, enhancing their training, education, and certification.
  • Innovated a chat system that connects WordPress users in real-time during webinars, boosting engagement and collaboration.
  • Designed and launched a dynamic website using Elementor for a client, supporting the creators of Epic Sum Up for Jira.
  • Provided expert guidance in setting up a robust server infrastructure for the project, ensuring seamless performance.
Technologies: WordPress, Bedrock, Sage 9, Elementor Pro, Elementor, UI Design, JavaScript, PHP, CSS, HTML, WordPress Themes, WordPress Design, User Experience (UX), User Interface (UI), Responsive Design, Gutenberg Editor, SQL, Web Design, Web Development, Gravity Forms, WordPress SEO, WordPress Security, SEO Tools, API Integration, APIs, WordPress Customization, Google Analytics 4, Third-party Integration, Search Engine Optimization (SEO), Figma, Figma to WordPress, Communication, UX Design, Websites, Mailchimp, MySQL, Mobile UI, Servers, PHP 8, Yoast SEO, Payment Gateways, Full-stack Development, Marketplaces, eCommerce, WordPress API, Confluence

Junior/Medium WordPress Developer

2014 - 2016
MediaNovak
  • Developed WordPress websites for clients globally, with a focus on photographers and videographers. Given the media-rich content, optimizing performance was a top priority, ensuring fast load times and a seamless user experience.
  • Developed and sold custom WordPress themes and HTML templates on Envato’s ThemeForest marketplace, adhering to industry standards and best practices for design, functionality, and performance.
  • Provided support for premium themes, assisting clients with functionality set up and troubleshooting. Ensured timely resolution of technical issues, delivering high-quality customer service to enhance user satisfaction.
Technologies: WordPress, WordPress Themes, WordPress Plugins, HTML5, CSS, Bootstrap, jQuery, JavaScript, WordPress Multisite, cPanel, FTP/S, IT Support, MySQL, Mobile UI, User Experience (UX)

Experience

CRIO Marketing Website

https://clinicalresearch.io/
I built a WordPress-based website from the ground up using Bedrock, Sage 10, and ACF, seamlessly integrating both back-end and front-end development. Every detail was crafted singlehandedly, ensuring a polished, high-performing site that delivers a top-notch user experience.

Website for A1 Group

https://nasamreza.rs/
I created a WordPress website using TailwindCSS and Alpine.js, featuring fluid typography and responsive spacing for a visually stunning and user-friendly experience. I also implemented a dynamic subscription system, allowing users to easily subscribe to personalized newsletter lists based on their preferred categories or favorite authors, ensuring they always receive content that matters most to them.

Marketing Website for Epic Sum Up Jira

https://epicsumup.com/
I developed a marketing website for Epic Sum Up on WordPress, utilizing Elementor as per the client’s request. Collaborating closely with the designer, I ensured the design was fully realized with pixel-perfect execution. A key aspect of the project involved building a dynamic pricing calculator that mirrored the functionality of the Jira marketplace. The calculator accounted for variables such as type (cloud or data center), billing period (monthly or yearly), and team size, delivering a seamless user experience tailored to customer needs.

Education

2012 - 2016

Bachelor's Degree in Computer Science

Univerzitet PIM - Banja Luka, Bosnia and Herzegovina

Skills

Libraries/APIs

REST APIs, Animate.css, jQuery UI, jQuery, Sage, WordPress API, BuddyPress, Stripe

Tools

Terminal, Sublime Text 3, Git, Advanced Custom Fields (ACF), Oh My Zsh, LearnDash, WP-CLI, Gutenberg Editor, Figma, Mailchimp, GitHub, NGINX, Litmus, Confluence

Languages

SCSS, PHP, CSS3, HTML5, CSS, HTML, PHP 8, JavaScript, SQL

Frameworks

ZURB Foundation, Redux, Bootstrap 3+, Bedrock, Tailwind CSS, Alpine.js, Bootstrap

Paradigms

Functional Programming, Responsive Web Design (RWD), Object-oriented Programming (OOP), UI Design, Search Engine Optimization (SEO), UX Design

Platforms

MacOS, WordPress, WordPress Theme Design, WooCommerce, Amazon Web Services (AWS), Shopify, cPanel

Industry Expertise

Web Design

Storage

MySQL, MySQL/MariaDB, JSON, Redis Cache

Other

Command-line Interface (CLI), WordPress Multisite, Ajax, WordPress Plugins, CSS3 Animation, Machine Learning, WordPress Themes, Computer Science, Sage 9, Elementor Pro, Elementor, Sage 10, WordPress Design, User Experience (UX), User Interface (UI), Responsive Design, Web Development, WordPress SEO, WordPress Security, SEO Tools, API Integration, APIs, WordPress Customization, Third-party Integration, Figma to WordPress, Communication, Payment APIs, Websites, Mobile UI, Yoast SEO, Payment Gateways, Full-stack Development, Marketplaces, Subscriptions, eCommerce, Email, Foundation Inky, Gravity Forms, Servers, DNS, Ubuntu Server, Google Analytics 4, OneTrust, FTP/S, IT Support, MemberPress

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