# CaseXcel

> AI-powered case interview and behavioral interview preparation for candidates targeting MBB, Big 4, and FAANG strategy roles. Practice with a multi-turn AI interviewer that scores your structure, quantitative reasoning, and communication, with a dynamic readiness score that tracks progress over time.

## What CaseXcel is

CaseXcel is a web application for case interview preparation. It simulates consulting and behavioral interviews using a state-machine-driven AI interviewer built on Claude Sonnet 4. Candidates practice against 6 interviewer personas (MBB Partner, Tier 2 Strategy, Big 4 Senior Manager, Analytics Interviewer, Amazon Bar Raiser, FAANG Hiring Manager), receive live assessment scores, and progress through a 4-phase learning path (Foundations → Skill Building → Interview Simulation → Final Prep).

## Product features

- [Case interviews](https://casexcel.app/cases): 60+ curated cases across beginner, intermediate, and advanced difficulty tiers covering profitability, market entry, pricing, operations, growth, and M&A
- [Behavioral interviews](https://casexcel.app/behavioral): 20+ STAR-framework questions anchored to Amazon's 16 Leadership Principles for Amazon Bar Raiser preparation
- [Coach marketplace](https://casexcel.app/coaches): Book verified former MBB consultants and Amazon Bar Raisers for 1:1 mock interviews
- [Candidate insights](https://casexcel.app/insights): Anonymized aggregate stats showing how preparation correlates with offer rates
- [Pricing](https://casexcel.app/pricing): Free tier, Pro $29/mo, Elite $49/mo (with voice mode), Coaching $99/mo

## Core concepts

- **Readiness score**: A 0-100 composite of structure, quantitative reasoning, and communication competency
- **Phase progression**: 4-stage guided learning path that auto-advances when skill thresholds are met
- **Monthly exam**: One-shot proctored case with MBB Partner persona, 45-minute time limit, locked difficulty; score goes on user's record
- **Voice mode**: Elite+ feature using Whisper STT + OpenAI TTS for spoken practice
- **Interviewer personas**: 6 distinct persona system prompts with differentiated scoring weights per firm archetype
- **Amazon LP tagging**: Behavioral questions are mapped to primary Leadership Principles for targeted practice
- **Readiness passport**: Opt-in public shareable profile with verified scores for LinkedIn sharing

## Resources

- [Monthly exam leaderboard](https://casexcel.app/leaderboard): Top scores from the current month's exam
- [Offer tracker](https://casexcel.app/outcomes): Users log interview outcomes; data feeds anonymized insights

## Audience

Students and professionals preparing for management consulting interviews (McKinsey, BCG, Bain, Oliver Wyman, Strategy&, AT Kearney, LEK, Accenture Strategy), Big 4 strategy interviews (Deloitte, PwC, EY, KPMG), Amazon behavioral interviews, and FAANG corporate strategy roles.