Modification of existing Android mobile application

I am looking for an experienced Android programmer, specializing in Kotlin, for programming work on an existing mobile application - a complex alarm clock with numerous settings and functionalities.

The assignment includes adding new and changes to existing functionality. The work is mostly based on existing solutions in other parts of the application, which need to be adapted according to the requirements. Due to the size and complexity of the project, at the beginning of the cooperation I provide a general description of the parts of the code to be modified.

At the same time, I am keen on establishing a long-term cooperation (several orders within a year) and I treat this order as a trial, in order for the programmer to get acquainted with the project and see how the cooperation shapes up. Ultimately, the scope of work would range from simple "copy-paste-adapt" style changes as above, through independent creation of complex functionality from scratch, to often time-consuming finding and fixing the causes of application malfunctions in certain situations.

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