Volodymyr Kotous

Built a Slack-like web app using React.js, Next.js, Tailwind, GraphQL, and Nest.js with complex data management and pixel-perfect design using MUI, deployed on AWS. Participated in sprint planning, grooming, PR reviews, and team communications to meet deadlines. Improved app performance with optimizations like memoization, code-splitting, infinite scrolling, and migration for SEO. Developed over 100 RESTful APIs with Node.js and TypeScript, and translated UX designs into functional frontend Vue3 code. Developed backend services and plugins using Laravel, integrated third-party analytics and feedback tools, used Agile and TDD principles, implemented CI/CD pipelines with Jenkins, Docker, and cloud services (AWS/GCP), and ensured high test coverage with Jest, Cypress, and Selenium.

Engineered a robust user account management system for an online eCommerce platform, leveraging PHP and MySQL, which boosted user retention rates by 25%. Designed and implemented responsive UI components using Bootstrap and jQuery, improving the overall user experience and reducing page load times by 30%. Integrated secure payment processing through the Stripe API, facilitating a seamless checkout experience and contributing to a 15% increase in transaction volume. Utilized Git for version control and collaborated with a team of developers, enhancing team productivity and reducing deployment errors by 40%.

Engineered a robust user account management system for an online eCommerce platform, leveraging PHP and MySQL, which boosted user retention rates by 25%. Designed and implemented responsive UI components using Bootstrap and jQuery, improving the overall user experience and reducing page load times by 30%. Integrated secure payment processing through the Stripe API, facilitating a seamless checkout experience and contributing to a 15% increase in transaction volume. Utilized Git for version control and collaborated with a team of developers, enhancing team productivity and reducing deployment errors by 40%.