SaaS platforms most often utilize modern web technologies that enable rapid product development, scalable infrastructure, and secure data management.
React, Next.js, and Vue.js are popular for the frontend, while Python (Django, FastAPI) and Node.js are used for the backend. PostgreSQL is typically used as the database, and the infrastructure is hosted in the cloud.
The choice of stack depends on the project's objectives, expected workload, integrations, and scalability plans. Therefore, for each SaaS solution, technologies are selected individually to meet the product's business goals.