Hi there!
I am a .NET developer with 10 years of experience, mostly in Windows technologies (Winforms, DevExpress, WCF, Windows Services, MS SQL Server).
I worked on several projects, e.g. metadata management tool(WinForms), which was created from scratch as a side project, and I helped it to grow to 50+ employees company as a lead developer and head of development. In this project I needd to connect with over 30 database systems, from the most popular (SQL Server, Oracle, MySQL, PostgreSQL) to less known (Cassandra, neo4j, percona, etc.). I was responsible for almost every aspect in this project (UI, connectors, data validations, SQL). so, I think that I meet all requirements needed for your project and I will be happy to help you with it!
Regards,
Łukasz