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InterviewWala by VayuTech

SDE Mock Interviews

Practice the loop before it's real.

Coding, system design, and behavioral — with honest feedback after every round.

Book a session See pricing

60 minsessions

1:1live

Honestfeedback

mock_interview_04.log

Interviewer Design a rate limiter for an API gateway handling 50k req/s across regions.

Candidate I'd use a token bucket per client, backed by Redis, with —

Feedback

Good instinct on the algorithm — but you jumped to Redis before naming the constraint that requires it. Say the "why" before the "what."

Interviewer Fair. Walk me through the constraint first, then.

Sessions

Pick a track, book a slot.

60 minutes, one-to-one, honest feedback after.

Single Mock Interview

£25 / session

Coding, system design, or behavioral — your choice
Honest feedback after
Book one slot, no commitment beyond it

Book a session

Full Loop Simulation

£60 / 3 rounds

Back-to-back coding, system design, and behavioral rounds
A different interviewer for each round — like a real onsite loop
Save £15 versus booking individually

Book the full loop

How it works

Simple, on purpose.

Book on Topmate

Pick a track and a slot.

Do the mock

A real 60-minute round.

Get feedback

What worked, what didn't.

Format1:1, live

Length60 minutes

TracksCoding · Systems · Behavioral

Who's running the sessions

Run by people doing the job, not just remembering it.

Run by engineers currently working across different companies — people who live the interviews they're now giving.

FAQ

Before you book

Do you teach DSA and system design from scratch?

No — this is a mock interview and feedback service, not a course.

Who runs the mock interviews?

Engineers currently working across different companies.

How is the Full Loop Simulation different from 3 single sessions?

Same three rounds, back-to-back with a different interviewer each time — closer to a real onsite loop.

Where do I book and pay?

Through Topmate — scheduling and payment together.

Questions

Booking happens on Topmate.

Got something that doesn't fit a standard booking? Send a note here.

Go to Topmate