Automated payment processes, report generation, and notifications with NestJS and Bull queues. Built online teaching systems with user, course, and payment management using NestJS and TypeORM. Optimized MySQL queries.

Developed backend systems for small and medium projects using Node.js and NestJS. Built robust REST APIs with NestJS and TypeScript, implementing JWT authentication and data validation.

Worked on financial and corporate projects with agile teams (Scrum). Used Node.js, TypeScript, Express, React, Next.js, Tailwind, HTML5, CSS3, JavaScript.

Developed features for transport, billing, and payroll modules. Designed and integrated REST APIs with external platforms. Automated payment processes and data validation.