- Developed and maintained core modules for a high-load betting platform using Yii2 and custom framework on PHP, JS and PostgreSQL

- Designed and integrated REST APIs

- Implemented real-time data processing and live updates using WebSockets

- Worked with Redis and RabbitMQ for asynchronous processing

- Modernized legacy modules and improved performance

- Ensured system reliability through bug fixing and performance improvements

- Participated in code reviews and architecture decisions

- Containerized the development environment using Docker Compose for consistent deployment

- Engineered and modernized web applications using Laravel and Symfony

- Developed interactive UI components with Vue and JS, enhancing user engagement

- Built and integrated complex API solutions for internal business logic and external services

- Managed data persistence and caching strategies using MySQL and Redis

- Improved system stability and reduced downtime through proactive bug fixing

- Developed high-load services for Ukraine's largest e-commerce platform using Yii2, Laravel and Angular

- Worked with ElasticSearch for high-performance product searching and filtering

- Architected complex data loaders and synchronized inventory across multiple systems via RabbitMQ

- Integrated various 3rd party APIs and built internal RESTful services for ecosystem-wide use

- Automated deployment processes and set up Unit/Functional tests (PHPUnit) within Docker environments

- Conducted code reviews and participated in architectural decision-making to ensure code quality and system stability