Presence App - Attendance System

Enterprise System & Leadership

Year

2024

Context

Professional Internship [Group Project]

Role

System Analyst & Fullstack Developer

React NativeReact Native
Java Spring BootJava Spring Boot
PostgreSQLPostgreSQL
ReduxRedux

Project Overview

A real-time, multi-tenant attendance management system utilizing precise geofencing to automate check-ins and reduce HR administrative burdens.

The Problem

Multiple client companies struggled with employee discipline due to inaccurate, decentralized attendance tracking, creating a massive administrative bottleneck for HR departments calculating payroll.

The Solution

I led a 10+ developer team from requirements analysis to implementation. I engineered a backend scheduler to automate late arrivals and check-outs, and bypassed React Native native module limitations by customizing an alternative GPS library for strict geofencing accuracy.

The Impact & Learning

Successfully transitioned an internal tool into an adopted commercial product. I learned how to navigate critical framework limitations and manage cross-functional communication to deliver enterprise-grade accuracy.

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