Summary
Overview
Work History
Education
Skills
Languages
Timeline
Ivan Krstić

Ivan Krstić

Summary

Experienced WordPress Developer with a strong focus on building custom solutions tailored to specific business needs. Skilled in front-end and back-end development using PHP, JavaScript, HTML, and CSS . Proficient in leveraging AI tools such to streamline development, optimize workflows, and accelerate problem-solving. Contributes effectively within cross-functional teams and delivers scalable, user-focused results.

Overview

25
25
years of professional experience

Work History

Web Developer

Growth Leads
12.2024 - 05.2025

Growth Leads is a iGaming affiliate‑marketing company focused on performance marketing and lead generation across multiple verticals and markets.


Key Responsibilities:

  • Developed and enhanced WordPress shortcodes and plugins, implementing new features and creating custom modules tailored to affiliate marketing needs.
  • Engineered React‑based WordPress plugins to power real‑time odds calculators, integrating seamlessly with existing shortcode ecosystems.
  • Worked with existing data pipelines to fetch, cache, and render affiliate data from centralized platforms, enabling dynamic post‑loop population and enhanced content rendering.
  • Refactored legacy JS code across plugins, removing jQuery dependencies and transitioning to modern ES6+ standards for cleaner and more maintainable codebase.
  • Maintained and debugged existing production systems, ensuring continuous functionality while shipping new features without disruption.
  • Followed best practices in clean architecture, modular design, and maintainability—delivering robust, scalable code.
  • Leveraged AI tools such as GitHub Copilot and ChatGPT to analyze complex tasks and implementation challenges, break them down into actionable development steps, and accelerate delivery by generating code snippets and logic scaffolds—substantially improving productivity and problem-solving efficiency.

Web Developer (Mid-Senior Level)

Better Collective
04.2019 - 10.2024

Company Overview: www.bettercollective.com

  • Developed, maintained, and optimized WordPress websites, leveraging PHP, JavaScript, and React to enhance performance and user engagement.
  • Designed and implemented custom WordPress plugins to extend website functionality and support marketing initiatives.
  • Led revamp projects to migrate websites from legacy technologies to WordPress, improving user experience and operational efficiency.
  • Translated and implemented designs from Figma into fully responsive and interactive web pages, ensuring optimal user experience.
  • Conducted A/B testing through VWO to assess site improvements, enhance user experience, and maximize conversion rates.
  • Leveraged AI tools to optimize content, enhance SEO performance, and reducing development turnaround times.
  • Diagnosed and resolved technical issues, debugging complex code to maintain high site reliability.
  • Actively contributed to Agile workflows, collaborating in cross-functional teams via Git, Jira, and communication channels such as Slack, Google Meet, and email.

Web Developer

Patrol PM / IPP centar
01.2017 - 01.2018
  • Development of the web applications, both front and backend with emphasis on API development.
  • Development and maintenance of the websites.
  • Technologies used: PHP, Laravel, MySQL, AngularJS, Bootstrap, Sass, CSS, Html.

Frontend Developer

MTC doo
06.2016 - 12.2016
  • Work on frontend part of a web application for tracking and resource management ('Biz processor') - Html, CSS, bootstrap, AngularJS, JS.

Internship

ING Software
08.2015 - 11.2015
  • Development of a web application for managing employees for HR department. (ASP.NET MVC 5, C#, & MS SQL server).

Program Administrator

NGO ENECA
01.2009 - 01.2014
  • Evaluation and selection of beneficiaries.
  • Grants approval.
  • Logistics.
  • Monitoring and reporting regarding program goals.

Network Administrator

CHF International
01.2006 - 01.2007
  • Administration of computer network.
  • Field data collection and preparation of reports for the senior management.
  • Administrative work.

Technical Officer

DAI - Development Alternatives Inc.
01.2003 - 01.2005
  • Technical and logistical organization of educational workshops for the local government officials.
  • Administration of office network.

Program Officer

IRD - International Relief and Development
01.2000 - 01.2002
  • Organization of humanitarian aid distribution to the people in need.
  • I organized and supervised distribution of more than 50.000 aid parcels and 1.000 tons of other aid.

Education

Advanced PHP web programming - PHP and Laravel framework

IT Center
01.2018

PHP & MySQL training - 150 hours training on web development using MySQL and PHP

NSZ Course
03.2017

Engineer of Electrical Engineering and Computer Science - Computer Science - RTI

University of Niš, Faculty of Electronic Engineering, Niš, Serbia
01.2002

Skills

  • PHP
  • WordPress development
  • HTML, CSS3, SASS
  • Laravel MVC and API development
  • MySQL data manipulation and database design
  • JavaScript and React proficiency
  • Proficient in Git
  • Translating Figma designs into code
  • Jira, Trello, Agile development

Languages

English
Upper intermediate (B2)
French
Beginner (A1)

Timeline

Web Developer - Growth Leads
12.2024 - 05.2025
Web Developer (Mid-Senior Level) - Better Collective
04.2019 - 10.2024
Web Developer - Patrol PM / IPP centar
01.2017 - 01.2018
Frontend Developer - MTC doo
06.2016 - 12.2016
Internship - ING Software
08.2015 - 11.2015
Program Administrator - NGO ENECA
01.2009 - 01.2014
Network Administrator - CHF International
01.2006 - 01.2007
Technical Officer - DAI - Development Alternatives Inc.
01.2003 - 01.2005
Program Officer - IRD - International Relief and Development
01.2000 - 01.2002
IT Center - Advanced PHP web programming, PHP and Laravel framework
NSZ Course - PHP & MySQL training, 150 hours training on web development using MySQL and PHP
University of Niš, Faculty of Electronic Engineering - Engineer of Electrical Engineering and Computer Science, Computer Science - RTI
Ivan Krstić