Good Evening Sir,
Here is Michele Cimmino from Italy and i'm a graduated software architect and full stack web/mobile developer, consultant, project manager, owner of an individual firm.
According to the principles of the software engineering I can provide you an object oriented, modular, cross-browser/platform, cutting-edge, modern approach in the software architecture and in the development.
I'm available 16/24 hours and 6/7 days, i can speak english and I understand a little of german.
Basically i'll read your app codes on the front-end and also on the back-end and i'll analyze the entire structure in order to perform some loading speed improvements: this can be accomplished following all the "good practice" suggestions related to files inclusions and DOM manipulation on the front end, but more specifically on the back end, splitting queries into indented atomical types instead of heavy table joins.
A further improvement of the computational complexity can be performed evaluating the asymptotic behavior of algorithms in your software; this analytical study with proper maintenance involves countless benefits.
You can check all my prev works on my portfolio https://www.freelancer.com/u/Neferius.html
Let's schedule a chat to discuss further.
Best Regards
Michel