Hi, how are you?.
I just read your description and very interested in your job.
As a senior developer, I have rich experience in web and software development for over 7 years.
Especially, I have handsome experience in leafletJS, Openlayer, Geoserver and I have developed several maps using these.
Due to experience in these fields, I can fix your issue within short time.
Can we discuss in details?
Looking forward to hearing from you soon.
Best Regards!