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Case Study

Timesheet System

Multi-Role Approvals & Reporting

Approval turnaround reduced from 3+ days to under 4 hours

Role

Full Stack Engineer

Stack

React.js, Tailwind CSS, Chart.js, Approval Flows

Timeline

5 months

Introduction

A multi-role platform for timesheet submission, approval workflows, and reporting dashboards — replacing spreadsheet-based processes.

Problem Statement

Timesheets and approvals ran on spreadsheets and email with no real-time visibility for managers.

Scope

Employee/Manager/Admin dashboards, approval workflow UI, reporting charts, exports, and optimistic UI updates.

Target Audience

Employees, managers, and administrators.

Functional Requirements

  • Multi-role dashboards
  • Approval workflow with edge cases
  • Reporting charts and export layouts
  • Optimistic UI updates
  • Validation rules
  • Real-time visibility into submissions

Challenges

  • Complex workflow states (revisions, rejections)
  • Optimistic UI consistency with failed APIs
  • Shared components across role dashboards
  • Reporting views for large datasets

Solution

Built status-driven approval flows, dashboards, and reporting with export-friendly UI. Used optimistic updates for fast interaction.

Technical Overview

React UI with Tailwind. Chart.js for reporting. Centralized state handling for workflow status.

Advantages

Approval turnaround reduced to hours
Real-time visibility for managers
Automated reporting replaced manual work
Faster interaction with optimistic UI
Role-specific dashboards improve usability
Export-ready reporting views

Limitations

  • Complex approval chains require configuration
  • Historical data migration requires manual work
  • Offline entry is out of scope

Outcome

The system replaced a manual process and reduced approval turnaround from days to hours while improving reporting visibility.

Key Learnings

  • Status-driven UI prevents invalid transitions
  • Optimistic updates need rollback handling
  • Shared components reduce build time significantly
  • Reporting features are always underestimated

Screenshots

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