Case Study

CapstoneCoach

AI-powered career coaching platform helping students transform capstone projects into career-ready skills.

1000+
Concurrent users supported
<5s
AI response time
<30s
Video processing time

Challenge

Students transitioning from academic capstone projects to professional careers needed structured guidance.

  • No personalized coaching for interview preparation
  • Limited practice opportunities for presentations
  • Difficulty translating academic achievements to professional competencies
  • No centralized platform for goal setting and progress tracking

Solution

We built a cross-platform mobile app with advanced AI coaching, video analysis, and progress tracking.

AI Goal Setting

GPT-4 powered coach helps students define clear, actionable career goals through intelligent conversations.

Video Analysis

GPT-4 Vision evaluates body language, facial expressions, speaking pace, and content structure in practice sessions.

Real-time Coaching

Contextual AI coaching with conversation memory provides personalized guidance based on individual progress.

Progress Tracking

Real-time dashboard with visual progress indicators and performance analytics.

Technical Approach

Mobile

  • React Native 0.79.2
  • TypeScript
  • React Navigation
  • React Query

Backend

  • Node.js + Express
  • MongoDB + Mongoose
  • JWT Authentication
  • AWS S3 Storage

AI Integration

• GPT-4 for goal setting and video analysis

• GPT-4o-mini for fast real-time chat responses

• OpenAI Whisper for audio transcription

• AWS Polly for text-to-speech feedback

Impact

<200ms

API response time for standard endpoints

Multi-modal

Video, audio, and text practice capabilities

Cross-platform

iOS and Android with native performance

Freemium

Scalable subscription model with Stripe

Technologies

React NativeTypeScriptNode.jsMongoDBGPT-4GPT-4 VisionAWS S3AWS PollyStripeOpenAI WhisperJWTExpress.js