Progression through mobile engineering, full-stack enterprise delivery, ERP-connected workflows, and production AI systems.
Apr 2023 - Present
Fusion Infotech Limited
Owns UI/UX, mobile, backend, ERP integration, and AI delivery across concurrent enterprise client engagements.
Built production systems with React/Next.js, Android, Flutter, Node.js/Express, Prisma, PostgreSQL, SAP, Oracle, and LangChain/LangGraph.
Flagship Client
Western Engineering Group
Delivered Android and web ESS for 2,000+ employees, moving HR workflows fully paperless with a 4.8 star Play Store app.
Automated geo-fenced attendance, leave, loan, move order, complaint, reporting, and hierarchical approval workflows.
Built real-time bi-directional SAP HR sync and reduced executive approval turnaround by ~75%.
Flagship Client
Seven Rings Cement
Led design-to-production of a multi-million-dollar P2P platform covering supplier registration through invoice processing.
Replaced ~75% of Oracle Procurement native usage and shortened procurement cycle time by ~35%.
Authored a reusable component library/design system that accelerated team delivery velocity by ~50%.
Flagship Client
BRB Cable Industries Ltd.
Architected web and Android workflows for warranty validation, B2B onboarding, retailer verification, and incentive payouts.
Built QR generation/validation for fraud-resistant product authentication across dealer and retailer networks.
Reduced manual retail-audit workload by ~50% with role-based approval dashboards and admin tooling.
Cross-Project
Core Engineering & Applied AI
Built a multi-tenant AI receptionist/booking backend using TypeScript, Express 5, Prisma, PostgreSQL, and LangChain/LangGraph.
Implemented a 9-tool ReAct agent with bilingual English/Bangla support and real-time slot computation across 7+ service industries.
Delivered NLP-to-SQL BI, RAG chatbot, and OpenAI-powered invoice extraction pipelines to reduce manual work.
Dec 2022 - Mar 2023
Self-Employed
Delivered Flutter and React applications for startups and SMEs from UI/UX through deployment.
Built maintainable codebases with reusable components, API integration, and state management patterns.
Jul 2022 - Nov 2022
Automation Services Ltd.
Developed a cross-platform eCommerce app and reduced client development cost through Flutter delivery.
Redesigned the BPDB issue-tracking app and helped secure the contract through a management presentation.
Apr 2022 - Jun 2022
Large IT Solution
Optimized an existing eCommerce app, redesigned core UI, and added partial payment support.
Worked across Flutter, Dart, REST APIs, and performance-sensitive shopping flows.
Dec 2021 - Mar 2022
Enlight Solutions
Built WooCommerce REST API powered eCommerce flows for users and admins.
Contributed LMS homepage, MCQ, and assignment features for Amader Academy.
May 2019 - Oct 2019
Debug BD Ltd.
Learned Flutter and foundational mobile development practices from the ground up.
Contributed production features to the Hedy application.
Built by Shamim Hasnain for hiring teams, product leaders, and organizations that value full-stack ownership and measurable product impact.