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Messy sales CSV in, decision-ready report out: cleaning with a data-quality log, KPIs with month-over-month analysis, and an automated report with charts. Anomaly detection is baked into the report - outliers, revenue mismatches and MoM spikes are flagged where they happen, so it is not a pretty-but-blind dashboard. Every cleaning step is logged, so you can see exactly what was fixed, dropped, or flagged before any number reached a chart. Public code: github.com/jigonyoo/analytics-pipeline
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Creatives on Contra have earned over $150M and we are just getting started
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Healthcare Management System
About the Work
I designed and developed a modern Healthcare Management System that streamlines hospital operations, patient management, appointment scheduling, and medical record administration. The platform was built to reduce manual processes, improve communication between healthcare professionals and patients, and provide a secure, user-friendly experience across desktop and mobile devices.
The system combines an intuitive interface with a scalable architecture, enabling healthcare providers to manage day to day operations efficiently while maintaining accurate patient records and improving the overall quality of care.
The Challenge
Many healthcare facilities still rely on disconnected systems, paper based records, and manual administrative processes. These challenges often result in:
Difficulty accessing patient information.
Long appointment scheduling times.
Inefficient communication between departments.
Increased risk of data errors.
Limited reporting and operational insights.
Poor user experience for both patients and healthcare staff.
The goal was to build a centralized digital platform that simplifies healthcare management while ensuring security, scalability, and ease of use.
The Solution
I designed and developed a comprehensive Healthcare Management System that centralizes patient records, appointment scheduling, billing, staff management, and reporting into a single platform.
The solution focuses on usability, performance, and security, allowing healthcare providers to access critical information quickly while reducing administrative workload.
Key features include:
Patient Registration & Profiles
Appointment Scheduling
Electronic Medical Records (EMR)
Doctor & Staff Management
Secure Authentication
Prescription Management
Billing & Payment Tracking
Analytics Dashboard
Responsive Web Interface
Role Based Access Control
How I Solved It
1. Discovery & Research
I analyzed common operational challenges faced by healthcare providers and identified opportunities to improve workflow efficiency, accessibility, and patient management.
2. Product Strategy
I structured the platform around the daily workflow of hospitals and clinics, ensuring that each feature solved a specific operational challenge while remaining simple to use.
3. UI/UX Design
Designed a clean, intuitive interface with a strong emphasis on accessibility, clear navigation, and responsive layouts to support healthcare professionals working across different devices.
4. Full Stack Development
Developed a scalable architecture with secure authentication, optimized database structures, API integrations, and responsive frontend components to ensure reliability and future scalability.
5. Performance Optimization
Optimized loading times, improved database efficiency, enhanced application responsiveness, and implemented best practices for secure healthcare data management.
6. Deployment & Testing
Conducted extensive testing across different devices and user scenarios to ensure stability, security, and a seamless experience before deployment.
Results
The completed Healthcare Management System provides healthcare organizations with a secure, centralized platform that simplifies patient management, improves operational efficiency, reduces administrative workload, and enhances the overall patient experience. The scalable architecture also allows the system to grow alongside the needs of healthcare providers.
My Role
Product Strategy
UI/UX Design
Full Stack Development
Frontend Development
Backend Development
Database Design
API Development
Authentication
Performance Optimization
Deployment
Technologies
React
Next.js
TypeScript
Node.js
Supabase
PostgreSQL
Tailwind CSS
Key Features
Patient Management
Electronic Medical Records (EMR)
Appointment Scheduling
Doctor Dashboard
Billing & Payments
Analytics Dashboard
Role-Based Access
Secure Authentication
Responsive Design
Performance Optimization
Your app works locally… but crashes after deployment? 😩
One of the most common mistakes I see is forgetting that local and production environments are different.
Before deploying, always check:
✅ Environment variables are correctly configured
✅ Production database credentials are set
✅ API URLs point to the right environment
✅ CORS settings allow your frontend
✅ Build errors are resolved
✅ Authentication works in production
My rule: Never assume that because it works on localhost, it's ready for production.
What’s the most frustrating deployment error you've faced? 👇
devtipsDesktop Apps DevelopmentWeb DesignWeb DevelopmentCursorNode.jsPythonnextjsfullstackwebdevelopment
I created an organized inventory tracking spreadsheet to record item IDs, product names, categories, storage locations, quantities, reorder levels, stock status, and update dates. I used clear formatting and status labels to make low-stock items easy to identify and the file simple to maintain.
