ContactIQ

Intelligent Contact Management Platform

Project Overview

A full-stack contact management system developed independently to demonstrate technical proficiency in Spring Boot, security implementation, and modern web development practices.

Secure Authentication (OAuth2 + OTP)
Complex Data Relationships
Responsive UI Design
Data Export Functionality

Technical Challenges Overcome

Multi-Provider Auth Management

Implemented secure session handling for Gmail, GitHub, and OTP logins with Spring Security

Cross-Field Search Optimization

Developed efficient search algorithm covering name, email, phone, and social fields

Bulk Data Export

Implemented CSV/JSON export with formatting and large dataset handling

Custom UI Components

Built responsive interfaces with vanilla Tailwind CSS without component libraries

Key Learning Outcomes

Spring Security Mastery

Configured OAuth2 providers, session management, and role-based access

Error Handling Strategies

Implemented global exception handling with proper logging and user feedback

Performance Optimization

Achieved sub-200ms response times through query optimization and caching

Cross-Browser Compatibility

Resolved layout issues and implemented progressive enhancement strategies

Technical Highlights

Core Architecture

Spring Boot Backend

RESTful API design with proper validation
Spring Security configuration
Database migration management

Database Design

Optimized relational schema
Efficient query performance
Secure data access patterns

Key Features Implemented

Advanced Search

Cross-field search functionality
Fuzzy matching implementation
Instant search results

User Management

Multi-provider authentication
Secure session handling
Role-based access control

Want to Explore the Technical Details?

I'd be happy to discuss the implementation specifics, share code samples, or walk through the system architecture. Feel free to reach out for technical discussions or potential opportunities.

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