Low cost airlines search engine (with connection flights)

Hello developers, We are looking for a developer who could build low cost airlines searching engine. This search engine must be not like other search engines who is searching flight between two point. It should search connection flights, who do not do low cost airlines. For example: i want to fly from Paris to London, I ticke flight possibility with one connection, so search engines finds cheapest route: Paris - Oslo (ryanair) / Oslo - London (wizzair). There's some kind of similar paid software: [login to view URL] In the start of the project will be only 5 top low cost European airlines, then will need to add more airlines step by step. All the design will be given, also technical documentacion will be given before starting a project.