I built Vektify after realizing I was terrible at explaining things I actually knew

Last year I was applying to engineering roles while running a marketplace with 100k+ monthly users solo.

I knew the tech. I'd built RAG pipelines, designed systems under real load, debugged production issues at 2am. But in interviews? I'd freeze. Or worse -I'd give a technically correct answer that sounded completely unconvincing.

The problem wasn't knowledge. It was articulation under pressure.

I tried every prep tool out there. They all gave me question banks and model answers. But reading a great answer and being able to deliver one are completely different skills.

So I built Vektify.

The idea is simple: you practice out loud (or in writing), and an AI gives you structured feedback -not just "good job" but why your answer landed or didn't. Clarity, structure, confidence signals, what you skipped.

It's powered by Claude, built on FastAPI + PostgreSQL, and deployed on Railway. Solo project, a few months in the making.

I'm launching tomorrow and honestly a little nervous.

One question for you: What's the hardest part of technical interviews for you -the knowledge gap, or the performance gap?

Would love to hear before launch day.