I have done most of my work on Microsoft technologies like .NET MVC, DNN, SQL and others. I cannot move on with with Microsoft technologies because they are not open source. I want to know best combination of frontend and backend open-source technologies that can be used in startup for faster and efficient web application development.
Which javascript framework can be considered for front-end development?
Which database can be used?
Which backend technology should I go with?
Which technology is secure, fast and efficient?