• Optimized the Backend team’s development processes by implementing structured workflows, including GitFlow, enforcing standardized coding styles, and code review process• Developed assessment tasks for potential Backend and QA Automation candidates, enhancing the hiring process by effectively screening and identifying the most suitable candidates• Upgraded legacy projects by migrating to the latest Node.js version, resulting in a 15% decrease in bounce rate and a 30% improvement in API load times, based on user analytics and performance monitoring data (AppDynamics)• Led the migration of all projects (30+) from manual uploading to server to CI/CD pipelines, and documented the process of adding CI/CD and YAML configuration into projects. This enabled the restriction of server permissions for safety purposes and reduced the time spent on uploading from 7 to 2 minutes• Refactored the whole Node.js codebase to match industry best standards (Robert Martin's)• Helped the team to reach and maintain 95% test coverage in the backendBilling subscription system, government integrations, ticketing systems, developing and maintaining promotion campaigns, maintaining application platform, integrating Telegram bots, event sourcing systems, avia systems

Development and support of projects (HTML, CSS, JS, Node js, Express, PostgreSQL, Vue.js).Wrote Node js code with the functionality of reading, writing and loading data from a mobile and web application into the database.