I built VoicePrep solo with no engineering background — here's why

I'm Mark. I built VoicePrep from Las Vegas working maybe 5-7 hours a week.

No engineering degree. No funding. No team.

Just a problem I kept watching happen over and over — smart, qualified people losing jobs they deserved. Not because of their experience. Not because of their skills.

Because they froze under pressure. Because they said "um" eleven times in their first answer. Because they said "I'm a perfectionist" when asked about their weakness and had no idea it was costing them the offer.

Interviewing is a skill. Like any skill it gets better with deliberate practice. The problem is that deliberate practice has always required a $250/hour coach or a friend willing to roleplay at 11pm.

I built VoicePrep.ai to change that.

32 AI tools. Voice recording. Filler word detection. Salary negotiation practice. Stress interviews that push back on every answer.

Free to start. No credit card. No email required.

I built the whole thing using Claude AI. Launched it this week. Already have real users getting real results.

If you're job hunting, switching careers, or just want to get better at interviews — try it at voiceprep.ai. Would love your feedback.

What's the hardest interview question you've ever faced?