Congratulations.  Do you have any goals? Is there a reason why you are avoiding schools with international accreditation? 

Hello Duncan, I am already working in Germany and want to do an MBA as I do not have any managerial experience. I am working as software developer and I have already done my master's in computer science. In order to climb the corporate ladder and explore managerial roles, I am planning to do an MBA. 
For International accredited colleges I have to prepare for GMAT and a lot of other preparations are required. Preparing for GMAT will be difficult at this stage and also I dont want to end up spending a lot for my MBA. Considering the global market now, I am not sure if I can recover my investment in near future. So I want an MBA in a reasonable cost and I would like to work (full time or part time) along with my MBA. That is the plan so far. I am mainly focusing on International Management or an MBA with finance as its focus area. The degree should be globally recognized as I am open to other opportunities outside Germany. 

How good is your German? I don't think a MBA from a Fachhochschule would be as good as in the DACH region as something like the Diplom Betreibswirt from WU, or as good internationally as an AACSB MBA like Deakin's global MBA with Upgrad. 

Diplom Betreibswirt from WU is too expensive around 40000 Euro. Deakin's global MBA with upgrad would feature online on the certificate and it is also not recognized in US/Canada as per WES.

WU is €12,000 https://executiveacademy.at/de/programme/diplom-betriebswirt

Why do you think WES does not recognise Deakin? Upgrad states explicitly that it does. 

The link that you have posted is a course in German language. I am looking for a course in English. For the Upgrad courses there are always mixed reviews so I won't prefer them. I am not sure how well do the employers consider Upgrad degrees. 

The Diplom is taught in German in the German speaking countries. I think its a more respected, better understood qualification in the SMB and Mittelstand sectors. If your German is not good enough to study, a higher language qualification may help you more than an MBA.