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Elizabeth Stein
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Case study

fullstack2026

HireReady

AI-powered interview prep SaaS with real-time voice interviews (OpenAI Realtime API), FSRS-5 spaced repetition scheduling, 1,300+ question bank, and company-specific prep tracks for Amazon, Google, Meta, Microsoft, Apple, Netflix, Stripe, and Uber. Gamification, performance analytics, and Stripe subscriptions (monthly, annual, and lifetime tiers).

End-to-end solutions from database to deployment

Field notes

Role

Creator

Read order

Evidence first, then constraint → build → proof. Use the chapter rail to jump sections; orbit to adjacent work from the bottom of the case study.

Full-Stack Nebula·✦I-Class Giant
●LIVE💰$$$
150 tests passing
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Evidence

Interface & evidence

A real surface area—not a mock. Scroll the story below for constraint, build, and outcome.

Signature viewimhireready.com
HireReady application interface
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imhireready.com

Story arc

How this shipped

End-to-end solutions from database to deploymentThree beats: what pressed against the work, how the stack answered, and what changed once it was live.

I · Constraint

The brief

Building a production SaaS with real-time AI voice interviews and scientifically-optimised spaced repetition while preventing financial losses from unlimited usage.

II · Build

The craft

OpenAI Realtime API for natural voice interviews with post-session analysis. FSRS-5 algorithm (same as Anki) drives review scheduling. 1,300+ questions across company-specific tracks. Usage limits per plan prevent cost overruns. Stripe handles monthly, annual, and lifetime billing.

III · Proof

What moved after launch

Live production SaaS. Voice interviews available 24/7 without scheduling. Company-specific prep covers FAANG + Stripe + Uber. FSRS-5 delivers science-backed review scheduling.

Engine room

At a glance

0
Tests

Inventory

Stack & signals

Next.js 15SupabaseOpenAI RealtimeStripeVoice AIFSRS-5
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Tell me what you're building

If you need someone who can own UI, systems, and AI integration without losing the plot—I'm listening. Contract, advisory, or full-time: we'll find the right shape.

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© 2026 Elizabeth Stein

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