Іван

IVAN OMELIANENKO
F U L L - S TA C K W E B D E V E L O P E R
[відкрити контакти](див. вище в блоці «контактна інформація») ◆ LinkedIn ◆ GitHub ◆ [відкрити контакти](див. вище в блоці «контактна інформація»)

◆ 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 and an ongoing ontology-management platform built on Neo4j and LLM pipelines. As a
PhD student in Systems Analysis, I apply a highly analytical approach to problem-solving while actively expanding my tech stack
with Python.

◆ WORK EXPERIENCE
TavernMind — Independent Developer In Development
Building an AI-powered interactive fiction platform where an LLM-driven Game Master narrates a persistent story and manages
full game state, with real-time WebSocket-based solo and cooperative multiplayer.
Architected multi-provider LLM orchestration (Google Gemini, OpenRouter, local models via Ollama/LM Studio) with a six-layer
memory system — recent messages, chapter summaries, story-arc compression, and pgvector-based RAG — to keep long-
running sessions coherent.
Built subscription billing, OAuth authentication, encrypted API-key storage, a referral/gift-code system, and an admin moderation
queue for a user-generated content marketplace.

Ontology Manager — PhD Research Project — Institute-Funded 2025 - Present
Leading the technical development of Ontology Manager as the core of my PhD dissertation, funded by the research institute — a
web app for integrating and intelligently merging RDF/OWL ontologies, with a Python/FastAPI backend, React + Vite + Tailwind
frontend, and Neo4j graph store.
Built a cascaded class-merging pipeline: lexical/graph pre-filtering, a local ReAct-style Graph Agent with Cypher, translation, and
web-search tools, cloud LLM fallback (OpenRouter, Gemini), and a human-in-the-loop review queue with evidence cards and ML-
assisted recommendations.
Diagnosed and resolved several undocumented bugs in the Neo4j RDF-import plugin (n10s), including a silent schema-
initialization failure and an import step that reported success despite failing.
Verified the full merge pipeline end-to-end on real ontology data, including automatic merges, correct routing of ambiguous cases
to manual review, and a working decision-history/ML-recommendation loop.

IntelliDesc AI — Independent Product — Founder & Developer Live — Maintenance & Enhancements
Founded and built IntelliDesc, a self-initiated WooCommerce plugin that generates AI product descriptions and technical specs,
evolved into a multi-provider architecture (Gemini, Claude, OpenAI, xAI Grok) with configurable extraction rules and category
templates, solving a recurring content-creation bottleneck for e-commerce clients.
Ported IntelliDesc to OpenCart 3, redesigning it around a multi-provider AI architecture (Gemini, Claude, OpenAI, Grok) and
shipping it as three tiered, self-contained product editions (Basic/Pro/Pro+) with independent license validation, bulk processing,
and product-filter/SEO/social-post generation.

OrtusIT — Full Stack PHP Developer 2021 - 2025
Spearheaded the development, support, and optimization of multiple high-traffic WordPress websites, improving system
processing speed by 30% through backend bottleneck fixes.
Engineered custom REST APIs to enable seamless external integrations, including secure data synchronization with enterprise
services such as Huawei.
Maintained, scaled, and reverse-engineered a custom PHP CMS lacking documentation.
Took ownership of undocumented legacy financial modules (under NDA); systematic refactoring reduced bug rates by 50% within
6 months.
Freelance — PHP Developer 2020 - 2021
Delivered smaller-scale PHP/WordPress projects for independent clients while completing a Master's degree in Systems Analysis.

Efes (W&B) — Full Stack PHP Developer 2019 - 2020
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 — Full Stack PHP Developer 2016 - 2019
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.

◆ E D U C AT I O N
PhD Student in Systems Analysis 2023 - Present
Zaporizhzhia National Technical University
Master's in Systems Analysis 2021 - 2023
Zaporizhzhia National Technical University

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

◆ SKILLS
Backend & Frameworks: PHP (OOP), Node.js & Express, Yii2, CodeIgniter, Python & FastAPI, Bash
CMS & E-commerce: WordPress, WooCommerce, OpenCart, PodsIO, ACF
Frontend: JavaScript, React.js, HTML5, CSS3, SASS/SCSS
Databases: MySQL, PostgreSQL, Neo4j (incl. Cypher, n10s, APOC)
DevOps & Tools: Git, Docker, Postman
Core Expertise: Custom REST APIs, WordPress Plugin Development, Multi-Provider AI/LLM Integration (Gemini, Claude,
OpenAI, Grok, OpenRouter), Prompt Engineering, Agentic Pipelines, Legacy System Stabilization, System Analysis
AI-Assisted Development: Claude Code, Antigravity, Roo Code (7+ months building with AI coding agents; Claude Code as
primary tool)

◆ LANGUAGE
Ukrainian — Native English — Intermediate B1