# Building a Real-Time Voice AI Interview Coach for Job Seekers: Lessons in Latency, LLMs, and Speech Analytics

> Source: <https://dev.to/avinash_chand_a476454f37b/building-a-real-time-voice-ai-interview-coach-for-job-seekers-lessons-in-latency-llms-and-speech-3062>
> Published: 2026-10-31 07:04:02+00:00

Every year during placement season, thousands of engineers face the same unspoken barrier: **they know the code, but freeze when asked to explain their logic out loud in English.**

Reading technical solutions on GeeksforGeeks or LeetCode builds theoretical knowledge. But live interviews test speaking fluency, structure under pressure, and concise communication.

For this Hacktoberfest Challenge, I set out to solve this exact problem by building **[MockVora](https://mockvora.com/)**—an end-to-end AI Voice Mock Interview coach that listens, adapts in real-time, and provides instant conversational feedback.

Most traditional AI tools use text-based chat. However, real interviews are fundamentally **verbal and auditory**:

To keep latency under 1.5 seconds without massive cloud GPU infrastructure, we designed a lightweight three-tier pipeline: