Case studies
Fintech platforms at Celloscope Ltd., client products on web and mobile, and personal apps. Each entry summarizes the problem, approach, and outcome; open a case study for architecture, stack, and impact detail.
Education · Client platform
A NestJS platform for Civil School Bangladesh covering academic and accounting operations, with bulk Excel/CSV import, Bengali PDF generation, a Next.js admin app, and a Flutter companion app for parents.
Fintech · Microfinance
An enterprise microfinance platform at Celloscope Ltd.: database schemas, complex PL/SQL financial logic, REST APIs, dynamic reports, dashboards, and PDF financial reports.
ERP · Web + Mobile
An ERP and inventory management platform with a mature Flutter mobile app (barcode/QR scanning, charts, PDF generation) and a web app being migrated from Express.js to Next.js.
Personal · Mobile app
A Flutter expense and income tracker that uses Google Sheets as its backend, works offline, and adds entries from an Android home-screen widget.
Fintech · Loan systems
Automated repayment scheduling, disbursement scenarios, approval flows, and audit-friendly financial logic for enterprise loan operations.
Enterprise · Internal tools
Role-aware admin workflows for managing complex operational modules with consistent states, permissions, and data-heavy interfaces.
Fintech · Accounting
An accounting application at Celloscope Ltd.: system architecture and database schema, authentication, authorization and backend APIs, and an automated CI/CD pipeline with Docker and GitLab Runner.
Fintech · Operations
An office management system at Celloscope Ltd.: loan modules and financial calculation logic, reporting, and legacy data migration with Python.
Client work · Web
A Next.js website for Anmon's Makeover Studio with an admin-curated Instagram gallery, plus two related builds: MATEA Beauty Salon (mateasalon.com) and a portfolio for Kaniz Fatema Anmon.
Client work · E-commerce
An online store built with Next.js 16, PayloadCMS and PostgreSQL, with secret scanning in CI, security linting, HTML sanitization, and a dedicated security test suite.
Client work · Web
The public website for Civil School Bangladesh, built with Vite, React and TypeScript, with a documented quality audit.