Looking for a job

Abu Hasan Rumi

@abuhasanrumi

Shopify Developer at DevsNest LLC, building Dynamatic Cart & Upsell for 300+ stores and cutting its main script size by 75%.

Bangladesh

Message

At DevsNest LLC, I build Liquid theme app extensions and storefront features for Dynamatic Cart & Upsell, a Shopify app running on 300+ live stores with different themes. I also fix theme conflicts for merchants and QA the storefront runtime across desktop and mobile.

I cut the cart’s main script from 1200 KB to 300 KB through code splitting, and fixed Shopify AJAX API rate limiting with request batching and caching. I also rebuilt the recommendation feed with a fallback path while merchants stayed live.

In freelance and independent projects, I built products including Edulance LMS, FlexiForm, Pakhir Basa, and WebPeekr. I also redesigned the FitmentCraft Shopify theme and translated a Hey Luxana product page from English to Bangla.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer, Front-end / Product Lead

Current

DevsNest LLC

May 2023 - Present (3 years 5 months)

Lead front-end architecture for a Shopify cart and upsell app used by 300+ stores. Built theme app extensions, fixed theme issues, and shipped conversion features including bundles, A/B testing, and post-purchase upsell flows.

Freelance & Independent Projects

Self Employed

Jan 2021 - Dec 2023 (2 years 11 months)

Built web products end to end, including freelance work and personal projects, covering UI, state, data model, auth, and CI. Translated a Shopify product page and developed several applications such as an LMS, a form builder, a PWA for meal tracking, and a Chrome extension.