Stefan Vasiljevic, Developer in Belgrade, Serbia
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Stefan Vasiljevic

Verified Expert  in Engineering

WordPress Developer

Belgrade, Serbia
Toptal Member Since
May 26, 2017

Stefan is focused on supporting entrepreneurs, small businesses, startups, agencies, and companies all around the world to make their ideas and projects (that involve web and mobile technology) closer to their customers. His work is a mixture of passion, expertise, creativity, and experience. Stefan excels at turning good ideas into great digital products that people love to use and interact with.


Info Kreator
Less, Sass, CSS3, HTML5, PHP, WordPress, APIs, WooCommerce, WooCommerce API...
CSS, WordPress, Pixel Perfect, Ajax, jQuery, JavaScript, Social Media Login...
Freelance Work
WordPress, PHP, jQuery, JavaScript, CSS, HTML, WordPress Plugins...




Preferred Environment

Jira, GitHub, Visual Studio Code (VS Code), MacOS, Figma

The most amazing...

...thing I've built was a business news portal that I built from scratch; the website is ranked in the top 100 websites in my country, currently at 63.

Work Experience

Lead WordPress Developer

2014 - 2018
Info Kreator
  • Developed projects for enterprise clients. Managed a team of developers. Worked on advanced projects and lots of API integrations. Developed native mobile apps.
  • Developed several web applications based on WordPress that interact with Google Street View, Facebook Open Graph, IoT Hub, and even hardware.
  • Made a time-lapse automation script for a major construction developer implemented in five countries.
  • Developed a news portal from scratch on my own that is currently the 63rd most visited website in the country.
Technologies: Less, Sass, CSS3, HTML5, PHP, WordPress, APIs, WooCommerce, WooCommerce API, WordPress Plugins, WordPress Themes, Mobile Apps, Angular, Cordova, React, React Native, Node.js, DevOps, Google APIs, Google SEO, Local SEO, WebApp, Email Markup, HTML Email, Email Marketing, Gulp, Booking, Software Development, Agile Software Development, Web Project Management, Agile, API Integration, Ajax, WordPress Multisite, API Development, Stripe API,, PayPal API, CSS3 Animation, Google Maps JavaScript API 3, Git, PSD to WordPress, HTML to WordPress, Bootstrap, Facebook Open Graph API, Photoshop CC, Responsive, SCSS, WordPress to PDF, English, Search Engine Optimization (SEO), Asana, Gravity Forms, Dashboards

WordPress Developer

2017 - 2017
  • Developed a website from scratch that allows visitors to add excursions and trips. Trips are categorized by country and region, budget, and interests.
  • Provided the designs in Sketch, a pixel-perfect implementation.
  • Launched the website without any assistance. Configured DNS and emails for the client.
Technologies: CSS, WordPress, Pixel Perfect, Ajax, jQuery, JavaScript, Social Media Login, WordPress Themes, CSS3 Animation, Google Maps JavaScript API 3, Git, PSD to WordPress, Bootstrap, Responsive, SCSS, English, Gravity Forms

Freelance Web Developer

2009 - 2015
Freelance Work
  • Worked directly with clients and gained communication and management skills.
  • Learned new technologies and best practices by working on many different projects.
  • Mastered development for the WordPress ecosystem, including custom themes and plugins.
  • Researched servers and infrastructures needed to host websites.
  • Gained new knowledge about cloud infrastructure and microservices.
Technologies: WordPress, PHP, jQuery, JavaScript, CSS, HTML, WordPress Plugins, WordPress Themes, WordPress API, Multilingual Websites, AngularJS, Responsive, Responsive Web Apps, CSS3 Animation, Sketch, API Integration, Front-end, Google Maps JavaScript API 3, WooCommerce API, WooCommerce, Git, PSD to WordPress, HTML to WordPress, Bootstrap, Photoshop CC, English, Search Engine Optimization (SEO), Gravity Forms

Front-end Developer

2012 - 2013
NetStar Media
  • Worked on many different projects and led a team of developers.
  • Developed eCommerce websites, payment gateways, and security. Worked with WooCommerce.
  • Built digital products and worked with augmented reality.
  • Created WordPress and WooCommerce plugins from scratch.
Technologies: CSS3, HTML, eCommerce, WordPress, PHP, Email Marketing, Email Markup, Artificial Intelligence (AI), Mobile Apps, HTML5, Responsive, Web Project Management, CodeIgniter, MySQL, Front-end, WordPress Themes, WordPress Plugins, CSS3 Animation, WooCommerce, PSD to WordPress, HTML to WordPress, Bootstrap, Illustrator CC, Adobe Dreamweaver, Photoshop CC, User Experience (UX), User Interface (UI), English, Asana

Web Designer

2007 - 2009
Agencija Web
  • Learned HTML, CSS, and JavaScript. Started learning PHP and focusing on WordPress CMS.
  • Mastered Photoshop and other design tools such as Illustrator.
  • Built small informational websites based on the provided design, or I designed and developed them on my own.
Technologies: Adobe Photoshop, JavaScript, CSS, HTML, Front-end, Illustrator CC, Adobe Dreamweaver, Photoshop CC, User Experience (UX), User Interface (UI), English


I developed this business news portal from scratch using WordPress, HTML5, CSS3, and jQuery. I also built an infinite scroll on the post pages, made a custom mega menu, and implemented Google DFP. The entire database was migrated from a custom CMS to WordPress via a custom-built importer.

I built this website for a new sports social network. I developed it with pixel-perfect implementation in mind and a lightning-fast, interactive mobile app demo. I also assisted in developing mobile and desktop apps for the social network.


This website enables members to add side trips and itineraries to existing places and describe their travel experience in detail. It features many functionalities, including front-end posting, members area, profiles, automated emails, and more.

This project was built from scratch based on the provided designs in Sketch.

Foto Mayer
This is an eCommerce website based on WordPress and WooCommerce. I built it by client specification along with an Innopay integration.

Delight Office Solution
This is a WordPress-based catalog website that has many sections. It features multiple templates for displaying catalog items and references and has a selection for architects where they can download everything needed for the project in full resolution. There are many internal links to boost SEO.

Noft Traders

This is a WordPress-based website which was developed based on a provided design; it also has a video slider.

Pravi Poklon

One of my early WooCommerce websites which has a powerfull back-end theme customizer and a customized dashboard with Google Analytics.

This site features a premium design and was built as a catalog website and is multilingual. It has a custom-built slider and an interesting permalink structure for WordPress. It has an interesting layout and a product inquiry popup form that sends a nicely formatted email to the website owner.
2010 - 2013

Bachelor's Degree in Web Development

University of Belgrade, Faculty of Information Technology - Belgrade, Serbia

2009 - 2010

Certificate in Web Development

IT Academy - Belgrade, Serbia

2004 - 2008

High School Diploma in Natural Sciences

Užice Gymnasium - Uzice, Serbia


WordPress API, jQuery, Google Maps JavaScript API 3, WooCommerce API, Google APIs, API Development, Facebook Open Graph API, React, Node.js, Stripe API,, PayPal API, WordPress REST API, Google Maps, Google Maps API


Git, Illustrator CC, Adobe Dreamweaver, Photoshop CC, Gulp, GitHub, Jira, Asana, Sketch, JSX, Figma, Adobe Photoshop, Adobe Experience Design (XD)


Bootstrap, WebApp, React Native, AngularJS, Angular Material, CodeIgniter, Angular


Sass, JavaScript, CSS3, HTML, CSS, PHP, HTML5, Less, SCSS


Responsive, Agile Software Development, Search Engine Optimization (SEO), Agile, DevOps, Web UI Design, Mobile Web Design


WooCommerce, WordPress, Visual Studio Code (VS Code), MacOS, CentOS, Zoho CRM


MySQL, MongoDB


CSS3 Animation, Ajax, Site Speed Optimization, Email Marketing, Email Markup, WordPress Plugins, PSD to WordPress, HTML to WordPress, WordPress Themes, Front-end, Web Development, English, Pixel Perfect, Multilingual Websites, Responsive Web Apps, API Integration, HTML Email, WordPress Multisite, Gravity Forms, Dashboards, Technical Architecture, eCommerce, WordPress to PDF, APIs, User Experience (UX), User Interface (UI), Cloud, Local SEO, Social Media Login, Mobile Apps, Google SEO, Booking, Software Development, Internet of Things (IoT), DoubleClick for Publishers, Mathematics, Design, Artificial Intelligence (AI), Web Project Management, Cordova, Microdata, Page Speed Optimization, Custom Solutions, Website Management, CRM APIs, Data Migration, Cloud Infrastructure, Autoscaling, PHP Performance

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