Moinul Hasan

Senior Software Specialist

SSL Wireless • Full-time

Sep 2022 - Present • 4 yrs 1 mo

- Built a full-stack multi-vendor e-commerce platform using Laravel and Vue/React, supporting 700+ products across product, inventory, order, payment and delivery workflows. - Designed product and delivery management features, including a delivery-tracking dashboard that gave internal teams real-time order status and helped reduce support tickets by 22%. - Established and maintained a Jenkins + Docker CI/CD pipeline, reducing deployment errors by 30%. - Built ERP and accounting systems in Laravel supporting high-volume financial reporting, billing and transaction processing with 10M+ transactions. - Designed Laravel + Docker microservices for Easy.com.bd, supporting top-ups, subscriptions, bill payments and integrations with multiple telecom and utility APIs. - Implemented SQL-based deduplication using ROW_NUMBER() window functions to identify and eliminate duplicate payment records at scale. - Integrated SSLCOMMERZ IPN handling and BSA recharge APIs, with a focus on secure transaction processing and PCI-DSS considerations. - Managed large-scale background jobs using SupervisorD, improving job reliability and reducing task failures.

Software Engineer

IOTA INFOTECH LIMITED • Freelance

Dec 2019 - Sep 2022 • 2 yrs 9 mos

- Promoted to Software Engineer after one year, working as a backend developer on client web applications and REST APIs with Laravel, MySQL and Redis. - Led development of Goubba, a multi-vendor e-commerce platform for the Algerian market, built with Laravel, React and MySQL and deployed on AWS (EC2, S3). - Built the backend for the Quilps podcast app using Laravel REST APIs and MySQL, deployed on AWS. - Took greater ownership of project delivery, from requirements through implementation and release.