I am nopcommerce certified senior developer having 5+ years of strong experience in nopcommerce, anything in the nopCommerce whether its customization, plugins, themes or performance improvement for me its like kid stuff as i know the nopCommerce from heart. From last 5 years i am working in nopcommerce almost every version from 3.70 and successfully published 20+ projects alogn with client satisfaction. Below customization have done for happly client Plugin • Canadian tax slab plugin • Shipping date & time slot plugin • Question/Answer plugin for products • Google Map API integration for finding store • Custom order listing admin side plugin • Twilio SMS API Integration Customization • Inventory management system • Warehouse wises stock management online/offline • Custom discount system • Bulk auction system • Version up gradation • Theme creation • Google map API Integration • Quantity unit change from unit to grm/ltr etc • Quantity increase/descries in product box Above all and many more customization have done in 20+ long term and short term projects and successfully deployed, after getting much experience now I move ahead and start my own freelancing services to direct deal with client and provide benefit of my string skills and experience to end client.