Ralph Saridar

I'm a backend and full-stack software developer with 4+ years of experience building scalable web platforms. I currently lead backend development for B2B marketplace systems, and I previously built large-scale React and React Native front ends.
What I can help you with:
• Custom backend development and REST APIs with Node.js, Express, NestJS and TypeScript
• Database design and PostgreSQL/MySQL/MongoDB query and performance optimization
• Web and mobile front ends with React, React Native and Tailwind
• Third-party integrations (email services, cloud hosting, websockets, cron jobs)
• Clear API documentation and smooth collaboration with front-end teams
• Web scraping and data collection automation with Python
• Role-based access control and secure user management
• Automated testing with Jest and Cypress