Candidate App

A high-performance mobile hub for career advancement, resume optimization, and specialized technical mentorship, bridging the gap between candidates and industry experts.

CAREER ADVANCEMENT PLATFORMCase Study
MOBILE APPSYSTEM DESIGNREAL-TIME SYNC

Technologies Used

React NativeExpoTamaguiNode.jsSocket.ioClerkStripeZustand

Technical Architecture & Design Document

1. User Journey Flowchart

The platform is designed to guide candidates through a structured career advancement path, from initial onboarding to active task completion and specialist communication.

Interactive Technical Blueprint

2. Overall Project Details

The Candidate App is a high-performance mobile application developed for The North Tech Labs. It serves as a central hub for candidates seeking career advancement, resume optimization, and specialized technical mentorship. The app bridges the gap between candidates and industry experts by providing a structured task-driven workflow, real-time communication, and secure payment processing for professional services.

3. Target Audience

The primary users of the Candidate App include:

  • Job Seekers & Candidates: Individuals looking to improve their job prospects through resume optimization, technical training, and mock interviews.
  • Technical Mentors & Specialists: Experts who provide guidance, review tasks, and communicate with candidates to ensure their career success.
  • Career Switchers: Users transitioning into new industries who require structured paths and verified service delivery.

4. Technical Architecture Flow

The app follows a modern mobile architecture using Expo and React Native, interacting with a robust Node.js backend through a combination of RESTful APIs and real-time WebSockets.

System Architecture

Interactive Technical Blueprint

5. Developer Role & Implementation Focus

The development of the Candidate App focuses on delivering a seamless, "app-native" feel with robust data synchronization. Key implementation areas include:

  • Scalable Mobile UI: Implementing a high-performance UI using Tamagui, ensuring consistent design tokens and smooth transitions.
  • Real-time Communication: Orchestrating Socket.io for instant messaging, typing indicators, and live notification delivery.
  • State Management: Leveraging Zustand for lightweight, performant state management across complex navigation flows.
  • Secure Payments: Integrating the Stripe React Native SDK to handle multi-currency service purchases securely.
  • File Handling: Implementing robust document upload and preview systems for resumes and task submissions.

6. Technology Stack & Tools Used

Mobile Environment:

  • Core: React Native, Expo (SDK 54), TypeScript
  • Navigation: React Navigation v7
  • UI Framework: Tamagui, HugeIcons
  • State: Zustand
  • Animations: Lottie, React Native Reanimated

Backend & Infrastructure:

  • Runtime: Node.js, Express
  • Real-time: Socket.io (WebSockets)
  • Authentication: Clerk Expo, Google Sign-In
  • Payments: Stripe SDK

Development Tools:

  • Build System: EAS (Expo Application Services)
  • Code Quality: ESLint, Prettier
  • Networking: Axios

7. Communication Structure (REST & WebSockets)

The app maintains a highly responsive state by utilizing REST for persistent data and WebSockets for interactive features.

Communication & Task Execution Flow

Interactive Technical Blueprint