I have +10 years of experience in programming.
I have worked for over 3 years on GIS related projects.
I hav worked with many related front end technologies in this field like MapBox, LeafLet, OpenLayers and Google Maps.
Not just front end, but backend technologies like PostGIS, Mongo geospatial, MapFish, ...
I am completely experienced in JS development too and have worked with tens of JS frameworks and modules.
Can you provide more details about your project?
Thanks, Helmot