Curriculum Vitae

Slavko Tepavcevic

WordPress Gutenberg Developer

+381 63 7796918

slavko@tepavcevic.com

Belgrade, Republic of Serbia

Remote Type: B2B / Contractor


Professional Summary

Senior WordPress Developer with 22+ years of experience building custom themes, plugins, and scalable web solutions. Proven expertise in Back/Front-end technologies, with a strong focus on performance optimization and SEO best practices.

Comfortable leading projects from discovery to deployment, collaborating in remote teams, and integrating complex APIs. Passionate about clean, maintainable code, and continuous learning.


Work Experience

WordPress Gutenberg & WooCommerce Senior Developer

2010 – Current

WebServis Slavko Tepavcevic PR / IT SYNDICATE DOO Web Development Agency

webservis.rs
  • Developing and Maintaining high level WordPress based websites, Web components, responsibilities Newsletters, E-mail and Templates for more than 20 local and global clients
  • Understand of WordPress ecosystem: Template Hierarchy, Hooks – Actions / Filters
  • Creating custom WordPress themes (Block / Classic) and plugins, Full Site Editing
  • Coding using front-end (HTML, CSS, JS) and server-side (PHP, MySQL) technologies
  • Testing site functionality, identifying problems or bugs and fixing errors
  • Ensure website usability, SEO, web standards (W3C) and browser compatibility
  • Active communication with clients in order to solve any possible problems

WordPress & WooCommerce Lead Developer

2021 – 2023

Wonderment Apps Named One Of Inc 5000’s Fastest Growing Companies In US

wondermentapps.com
  • Led the development of high-traffic WordPress sites including:
    stamps.com and rtacabinetstore.com, serving millions of users monthly
  • Spearheaded new feature development and site optimization to meet SEO and speed targets (Core Web Vitals: >90 FCP, LCP, CLS, INP, TTFB)
  • Collaborated with cross-functional teams and directly with clients to define technical requirements and solutions
  • Mentored junior and mid developers and coordinated code reviews, ensuring best practices across the team
  • Tech stack: WordPress, PHP, MySQL, CSS, JS, Git, CI/CD pipelines

WordPress & WooCommerce Developer

2004 – 2009

Grafix doo • ACTA Advanced Consulting & Training Agency

  • Following areas: sales, trade marketing, merchandising and logistics

Skills

  • WordPress Custom theme, hooks/actions/filters, Gutenberg Blocks, FSE themes
  • SEO Yoast, RankMath Technical SEO audits, 301 redirect mapping
  • Languages HTML5, CSS3, JavaScript, PHP, MySQL, XML, JSON
  • API integrations REST APIs, webhooks, third-party plugin development
  • Frameworks & Tools React build interactive components and integrate headless setups
  • Multisite WordPress setup and management
  • Performance CWV, GTM/GA4, GSC, PageSpeed insights, W3C Markup Validation
  • Linux server Administration level, Debian preferred
  • Web Administration cPanel, Plesk, WHM, PHPMyAdmin, Apache, NGINX, Google Cloud
  • Infrastructure & Hosting SSH, FTP, DNS, shared and VPS servers, Cloudflare
  • Server Security & Enc SSL Certificate installation and renewal
  • Hosting platforms Kinsta, WP Engine, Cloudways, SiteGround, DigitalOcean, Hostinger
  • Version Control Git-based version control, CI/CD, staging/production workflows

Seminars and Trainings

  • 2012 – 2025 WordPress WordCamp and WordPress MeetUp active member
  • Apr 2012 Vinča Institute of Nuclear Sciences – Advanced PHP (OOP) concepts
  • Jun 2010 iFront – Internet Conference. Topic: Web – A Powerful Internet and PR Tool
  • Dec 2008 Microsoft Dynamics Academy (NAV i CRM)
  • Jun 2005 Soft Skills – Communication – Internal & External
  • Sep 2005 Time Management, Communication Styles and Body Language
  • Oct 2005 Conflict Management – Overcoming Objections, Resolving Conflict
  • Nov 2005 Effective Sale – Persuasive Selling, Closing Techniques
  • Jan 2006 Employee Training:reactions to training, learning styles, training cycle, Feedback

Education

Master of Science

1997 – 2003

University of Pristina Faculty of Economics

ekonomski.pr.ac.rs
  • Major / Thesis: Information Systems / Information Security Management System
Metrics after migrating the builder to Gutenber Blocks
First Contentful Paint
1.1 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric.
Largest Contentful Paint
1.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Total Blocking Time
0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric.
Cumulative Layout Shift
0.002
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more about the Cumulative Layout Shift metric.
Speed Index
1.1 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric.
  • Captured at September 23, 2026
  • Emulated Moto G Power
    Unthrottled CPU/Memory Power: 938 CPU throttling: 1.2x slowdown (Simulated) Screen emulation: 412×823, DPR 1.75 Axe version: 4.11.4
  • Single page session
    This data is taken from a single page session, as opposed to field data summarizing many sessions.
  • Initial page load
  • Slow 4G throttling
    Network throttling: 150 ms TCP RTT, 1,638.4 kb/s throughput (Simulated) Browser location: Europe
  • Using Headless
    User agent (network): “Mozilla/5.0 (Linux; Android 11; moto g power (2022)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Mobile Safari/537.36”