Kostiantyn Kryvoshapka

- Identified and resolved critical memory leaks, leading to increased application stability and reduced resource consumption. - Implemented key code optimizations, resulting in a 20% boost in overall project performance and improved user experience. - Developed comprehensive testing templates, enabling junior developers to efficiently write and maintain high-quality test cases, thereby standardizing the testing process and reducing onboarding time for new team members

- Optimized validation logic, resulting in a 20% reduction in response time. - Increased unit test coverage from 55% to 85%, significantly enhancing code reliability and reducing overall development and debugging time. - Led the implementation of a CI job for product security and improve testing accuracy. - Led the client's transition to Ansible for deployment automation by designing documentation, configuring the initial setup, and creating reusable roles to streamline and enhance the deployment process.

- Boosted backend service performance by optimizing SQL-based queries and data conversion, resulting in a 20% increase in efficiency. - Revamped client's order listing page, significantly enhancing user experience and aesthetic appeal. - Eliminated over 40 security vulnerabilities, ensuring complete system integrity.

- Participated in the development of a supplier evaluation system, which improved the selection process based on specific criteria - Implemented integration with third-party services for monitoring and collecting additional information about suppliers using REST APIs - Optimized SQL queries and data processing logic, reducing the response time of the application's backend by 25%