Іван

IVAN OMELIANENKO
Full-Stack Web Developer
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ABOUT ME
Results-driven Full-Stack Developer (7+ years) with deep expertise in PHP, WordPress, and
backend architecture. I focus on optimizing legacy code, building seamless REST API
integrations, and creating AI-powered products, including a custom content generation
plugin for WooCommerce. As a PhD student in Systems Analysis, I apply a highly analytical
approach to problem-solving while actively expanding my tech stack with Python.

EDUCATION
PhD Student in Systems Analysis
Zaporizhzhia National Technical University
2023 - Present

Master’s in Systems Analysis 2021 - 2023
Zaporizhzhia National Technical University

Bachelor’s in Software Engineering 2012 - 2017
Zaporizhzhia National Technical University

WORK EXPERIENCE
OrtusIT | 2021 - 2025
Full Stack Php Developer
Spearheaded the development, support, and optimization of multiple high-traffic
WordPress websites.
Engineered custom REST APIs to enable seamless external integrations.
Maintained, scaled, and reverse-engineered a custom PHP CMS lacking
documentation.
Refactored and stabilized critical legacy financial modules (under NDA), improving
overall system reliability.

Efes ( W&B ) | 2019 - 2020
Full Stack Php Developer
Developed and deployed full-stack features for dynamic marketing websites.
Actively contributed to internal company tools and pet projects leveraging Laravel and
CodeIgniter.

Webbee.pro | 2016 - 2019
Full Stack Php Developer
Built and maintained internal CRM systems utilizing the Yii2 framework.
Deployed, customized, and optimized WordPress websites for various small to mid-sized
B2B/B2C clients.
SKILLS
Backend & Frameworks: PHP (OOP), Yii2, CodeIgniter, Python & FastAPI (Learning), Bash
CMS & E-commerce: WordPress, WooCommerce, PodsIO, ACF
Frontend: JavaScript, React.js (Learning), HTML5, CSS3, SASS/SCSS
Databases: MySQL, PostgreSQL, Neo4j (Learning)
DevOps & Tools: Git, Docker, Postman
Core Expertise: Custom REST APIs, WordPress Plugin Development, AI Integration (Gemini
API), Legacy System Stabilization, System Analysis

KEY ACHIEVEMENTS
Optimized Backend Performance: Improved system processing speed by 30% by
identifying bottlenecks and rewriting inefficient PHP scripts within the WordPress core
ecosystem.
Refactored Legacy Financial Modules: Took ownership of complex, undocumented legacy
code. Conducted systematic refactoring that reduced bug rates by 50% in 6 months,
significantly improving code maintainability.
Built Scalable API Solutions: Designed and implemented custom REST APIs to connect
internal financial platforms with external enterprise services (e.g., Huawei), ensuring
secure and fast data synchronization.
Developed AI Integration Plugin: Created IntelliDesc for WooCommerce from scratch—a
plugin that integrates Gemini AI to automatically generate optimized product
descriptions, directly solving content creation bottlenecks for e-commerce.

LANGUAGE
Ukrainian ( Native ) English (Intermediate B1 )