Іван

CONTACT INFO
Location: Lviv, Ukraine
Email: [відкрити контакти](див. вище в блоці «контактна інформація»)
IVAN ZAHORUIKO
Phone: [відкрити контакти](див. вище в блоці «контактна інформація»)
FULL-STACK ENGINEER Telegram: @AntifragileNone

PHP · JAVASCRIPT · TYPESCRIPT · NODE.JS / NESTJS
TECHNICAL SKILLS
PHP 7/8, MVC, Design Patterns HTML5 · CSS3 · LESS · SCSS
JavaScript (ES6+) · Node.Js · NestJs · Jest Headless · API-driven architectures · Microservices
TypeScript Performance optimization (caching, indexing)
Magento 2 · Adobe Commerce · Cloud PWA (ScandiPWA) · SPWA
Prisma · TypeORM · Knex.js Redis (performance optimization) · Varnish
REST API · GraphQL APIs · SOAP API Docker · Containerized environments
PostgreSQL · MySQL · MariaDB · Indexing · Query optimization CI/CD & Agile · Scrum · Kanban
Prompt engineering - Cursor · Copilot · Codex · Cloude Code System integrations (ERP, CRM, payments)
Kafka · RabbitMQ Datadog · New Relic · Profiling
jQuery · Knockout.js · React fundamentals · SSR concepts · PWA · responsive UI
OOP· SOLID · MVC · Design Patterns · System Design
Linux CLI · Nginx · Apache
OpenSearch · Elasticsearch

Senior full-stack engineer with 8 years delivering high-load, mission-critical e-commerce projects in PHP and modern JavaScript /
TypeScript. Experienced in designing scalable and maintainable backend systems using OOP, SOLID principles, DDD, design patterns,
and clean architecture approaches. Advanced SQL query optimization. Proven record of shipping performance-critical features and
driving architecture decisions across distributed, cross-functional teams.

PROFESSIONAL EXPERIENCE
Senior Software Engineer, ODDITY (SpoildChild & IL Makiage) | Remote (US/IL) Jul 2023 - Apr 2026
Developed and maintained scalable backend solutions across multiple international brands, including a NestJS/TypeScript service
that analyzed customer quiz responses and preferences to deliver personalized product recommendations to Magento 2 via REST
APIs.
Designed and implemented an AI-driven Upsell system with dynamic product personalization
Built custom checkout flows with a one-click ordering experience, improving UX and marketing efficiency
Led performance optimization initiatives
→ Reduced checkout load time by 35%
Collaborated with cross-functional teams (frontend, product, marketing) to deliver business-critical features
Contributed to architecture decisions and ensured high code quality and maintainability
Full-Stack Developer, ITRex Group | Remote (EU) Jan 2023 - Jul 2023
Full-stack development for a service marketplace platform
Implemented and maintained features across multiple layers of Magento architecture
Built modules for data automation, payments, catalog, and product management; integrated external services and optimized queries,
caching, and application performance.
Magento 2 Backend Developer, Decima Digital Inc. | Kyiv, Ukraine Aug 2020 - Jan 2023
Developed scalable Magento 2 backend services with GraphQL integration
Built custom modules for data automation, payment integrations, and product management
Integrated third-party systems and improved system performance, Adobe VIP
Played key role in building high-load B2B e-commerce platform
Magento 2 Backend Developer, Private (NDA) | Remote (EU) Mar 2020 - Aug 2020
Developed an asynchronous SPWA system using Kafka and RabbitMQ
Built a CRM system for order management automation
Magento 2 Backend Developer, Konsol Studio | Kyiv, Ukraine Nov 2018 - Mar 2020
Developed Magento extensions and REST APIs
Migrated large Magento 1 store to Magento 2
Integrated external services and improved system architecture
ADDITIONAL INFORMATION EDUCATION
Languages: English C1 (fluent, 8+ years in professional Master's in ComputerScience
environment) Poltava Polytechnic, 2024
Adobe Certified Expert - Adobe Commerce Developer Bachelor's Degree: Aviation Engineer
Adobe Certified Professional - Adobe Commerce Developer National University Kyiv Aviation Institute, 2020
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