• Frontend: JavaScript (ES6+), React, Angular, Vue. js, TypeScript, HTML5, CSS3 (Sass, Less), Webpack, Responsive Design.
• Backend: Node. js (Express, NestJS), Python (Django, Flask), PHP (Laravel, Symfony), Databases (PostgreSQL, MySQL, MongoDB, Redis).
• DevOps: Docker, Kubernetes, CI/CD (GitLab CI, Jenkins).
• Testing: Unit Tests, Integration Tests, End-to-End Tests (Jest, Mocha, Cypress).