I have commercial experience in the development, support, and refactoring of various web applications using PHP and Laravel.

- Development of POS-terminal functionality, including the implementation of discount and promotional voucher management system mechanisms, which increased user loyalty to the service and contributed to attracting new loyal customers.

- Implementation of the web-application functionality for risk assessment management with the introduction of secure access to resources, ensuring data protection and clearly defining rights in multi-level user system.

- Reduction of API request execution time up to three times through database query optimization and the implementation of caching, which improved system performance and user experience.