Replicon is a world leader in the web-based time, project, billing, cost and expense management solutions, offering highly configurable products, combined with third party integrations and compliance.Replicon's large-scale multi-tenant SaaS application is used globally by thousands of customers and millions of users, and it is backed by the AWS cloud.I have worked across most development departments and teams, and I have been involved in the development of most of the products.I’ve been an integral part of the major technical transformations that happened over the years:• Moving from Replicon’s proprietary language, backed by C++ to ASP .NET using C#, hosted on the internally developed webserver that supports ASP .NET.• Transforming the architecture to use SOA via WCF written in C#;• Moving from on-premise to fully hosted SaaS solution on Replicon’s datacenter;• Adapting and moving the entire infrastructure from Replicon’s datacenter to the AWS cloud in multiple regions based on the tenant’s physical location.