Things I've built.

Structured question-bank platform with a three-reviewer blind consensus workflow. Submitters contribute, three independent reviewers evaluate each item, approved questions become a searchable bank.

• Role-based auth (Contributor / Reviewer / Question Setter / Admin) via Laravel + Google OAuth.
• Submission module: text + image input, single-choice / multi-choice / paragraph types, accept-reject feedback to submitters.
• Three-reviewer consensus engine – each question needs evaluation by 3 independent reviewers before acceptance.
• Admin panel for role management, user oversight, question administration, ghost-reviewer detection.
• Automated email notifications for assignments, submissions and anomalies.
• PostgreSQL schema covering users, questions, reviews, tags, categories, audit trails.

DSi's internal event & attendance management platform – digitises the previously manual attendance flow for knowledge-sharing sessions, workshops and meetings.

• End-to-end event lifecycle – creation, scheduling, real-time status (Ongoing / Upcoming / Finished), attendee management.
• Google OAuth 2.0 via Laravel Socialite, restricted to DSi organisation accounts with auto user-creation on first login.
• Real-time attendance marking (virtual or physical) with duplicate-prevention logic.
• Role-based access control (Admin / General User) controlling event visibility, user management and export permissions.
• Admin user-management panel with modal-based role promotion / demotion and instant role application.
• Excel export – formatted .xlsx with event metadata and full attendance records.
• Personal attendance-history module with paginated reverse-chronological card view.
• Responsive UI – fixed sidebar on desktop, bottom nav on mobile (Bootstrap 5).

National-scale web & mobile education monitoring platform developed by DSi for DSHE, Bangladesh, with UNICEF support – digitises field-level school inspections across secondary & higher-secondary institutions.

• User issue resolution and bug fixing across the live production system serving education officers and institution heads nationwide.
• Combined periodic reports (yearly / quarterly / half-yearly) and analytical breakdowns – indicator-, subject- and title-wise – over classroom and general monitoring data.
• Advanced database-driven reports for client-specific requirements beyond the existing system scope – complex queries, formatted outputs.
• Direct database-level resolution on the live database for data inconsistencies and critical user-reported issues.
• Led R&D – documentation, proposals, architecture analysis – for both issue resolution and upcoming feature extensions.
• QA / software testing for existing features and new development cycles; documented system issues with analysis & proposed solutions.