Олексій

Olexii Mormul
Full Stack Developer
Cherkasy, Ukraine · Primarily remote
[відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | GitHub | Telegram
Summary
Full Stack Developer (PHP / JavaScript) with 8+ years of experience building scalable web solutions and maintaining
legacy systems. Proficient in PHP 7+/8+, Laravel, JavaScript (jQuery/ES6+), and SQL optimization, with practical
knowledge of Smarty, Redis, and Docker. Experienced in media processing with FFmpeg / ImageMagick and
adapting third-party platforms, focused on performance tuning for high-traffic environments.
Experience
REHAU | Senior Full Stack Developer (PHP / JavaScript) 07/2023 – 09/2026 Cherkasy, Ukraine
• Full-stack engineering & architecture: Developed and maintained robust server-side and client-side solutions for
high-traffic internal platforms using PHP 8+ (Laravel), JavaScript (ES6+, jQuery), and modern HTML5/CSS3.
• Legacy codebase & CMS maintenance: Analyzed, refactored, and extended third-party and proprietary codebases,
integrating custom modules for media-centric CMS platforms using Smarty and Blade templating engines —
reduced new feature rollout time by ~30%.
• High-load caching & SQL optimization: Designed multi-level caching strategies using Redis and optimized complex
SQL queries and database indexing, decreasing average page rendering and API response times by ~35%.
• Quality assurance: Wrote unit and integration tests for critical backend workflows and UI logic, reducing post-
release bug reports by ~20%.
ALIQUOT | Middle Full Stack Developer 07/2021 – 06/2023 Kyiv, Ukraine
• Backend & API development: Engineered scalable web application modules and RESTful endpoints from scratch
using PHP 7+/8+ and Laravel, ensuring reliable data exchange and fault tolerance under peak traffic loads.
• Database performance tuning: Authored complex SQL queries, stored procedures, and schema adjustments in
MySQL/PostgreSQL, reducing overall database server load by ~40%.
• Maintenance & debugging: Maintained existing client-facing websites, troubleshooting legacy codebases and
eliminating performance bottlenecks and security vulnerabilities.

Luxoft | Junior Full Stack Developer 07/2018 – 07/2021 Kyiv, Ukraine
• Architecture refactoring: Reduced code duplication by 30% and improved maintainability by introducing
MediatR, AutoMapper, and FluentValidation patterns.
• Full-stack API integration: Delivered responsive UI features using PrimeNG, integrating secure RESTful
endpoints across Angular and .NET layers — reduced reported UI bugs by ~15%.
• Data access optimization: Optimized Entity Framework Core queries and SQL indexing, reducing average query
response time by ~30%.
Skills & Technologies
• PHP 8, Laravel, JavaScript (ES6+), jQuery, TypeScript, HTML5, CSS3, SCSS, BEM, Tailwind CSS
• Vue 3, Angular 14+, AngularJS, React, Next.js, Redux Toolkit, RTK Query, GraphQL, PrimeNG, NG-ZORRO, MUI
• C#, .NET Core / ASP.NET Core, Entity Framework Core, MediatR, AutoMapper, FluentValidation, Serilog, Node.js
• SQL, PostgreSQL, SQL Server, RESTful Web APIs, Swagger, Git, CI/CD, Jira, Figma, Agile/Scrum
• AI-assisted development: Claude Code, GitHub Copilot, Google Antigravity
• Ukrainian (Native), English — B2
Education
Taras Shevchenko National University of Kyiv — BSc & MSc in Computer Engineering (2016–2022)
Master's thesis: "Forecasting the number of visitors to a shopping center using regression models"