DevMentor

Situation

Fresh graduates fail interviews they could pass, because the only place to practise is a real one. There is nowhere low-stakes to be bad first, and the feedback from a rejection is silence.

Task

• Give a graduate a realistic technical interview they can fail privately.
• Send them away knowing what to fix, not just how it felt.

Result

Reached 500+ active users within 14 days. A voice interview with a live transcript, then a scored report — strengths, gaps, and a breakdown by skill.

My Contribution

• Made users bring their own API key. That one decision is why 500 people could arrive in a fortnight without an inference bill — the product scales at zero marginal cost, and I never hold anyone's credentials.
• Insisted the output be a verdict, not a transcript. A chat log tells a graduate nothing; a 0-100 score with strengths, gaps and per-skill feedback tells them what to practise on Monday.
• Chose voice over text, because what graduates actually fail is speaking under pressure — not writing answers with time to think.
• Watched onboarding and iterated on the feature set against real drop-off rather than opinion.