Technical Interview Prep –
Coding, System Design & More
Technical interviews aren't just about the right answer, they're about how you think out loud. PrepPilot pairs you with an AI interviewer that probes your reasoning, just like a senior engineer would.
100% free · No credit card required
Practiced by 12,000+ candidates interviewing across
— How it works —
Three steps to interview confidence.
Step 01
Pick your interview
Behavioral, technical, case, system design — or paste a real job description and we'll build the mock around it.
Step 02
Talk it through
An AI interviewer asks real questions, probes your answers, and follows up just like a hiring manager would.
Step 03
Get coached
A warm, specific scorecard the moment you finish. Where you shone, where to tighten, what to say next time.
— Practice library —
Real Technical Interview Scenarios
From DSA whiteboards to system design loops, practice the formats top tech companies actually use.
Two Sum (Easy DSA)
Walk through your thought process on a classic array problem with the AI interviewer.
System Design: URL Shortener
Design a scalable URL shortener live, defending your trade-offs to a senior engineer.
Debugging a Production Outage
Talk through how you'd diagnose a memory leak in a live system.
Coding: Binary Tree Traversal
Explain recursion and trade-offs while writing clean, working code.
Behavioral for Engineers
Tell stories about technical leadership, on-call incidents, and code reviews.
Architecture: Chat App at Scale
Design a real-time messaging platform, handling 10M concurrent users.
— Your coach's notes —
Feedback that feels like a friend who gets it.
A note from your coach
- ·
Strong clarification questions before jumping to code.
- ·
Discuss time/space complexity earlier, before the interviewer asks.
- ·
Walk through one edge case test before declaring done.
You're closer than you think. Try one more round.
— What makes us different —
Stop studying interviews. Start having them.
Online courses
Lectures and worksheets. No live practice. You read about interviews instead of doing them.
Human coaches
Insightful but $200+/hr. Hard to schedule. One conversation a week if you're lucky.
PrepPilot
Live mocks any time of day, with feedback that actually tells you what to fix. For the price of a coffee.
— The results —
Calm in the room. Offers in the inbox.
12,000+
job seekers practicing this week
87%
report feeling more confident
3.2×
more offers received
12 hrs
average practice before an offer
"I'd bombed three onsite interviews before finding PrepPilot. The follow-up questions are brutal in the best way. Got my dream offer two weeks later.
"Walked into my big tech loop feeling like I'd already done it ten times. That calm changed everything.
"As a career switcher, I had no idea how to answer behavioral questions. The STAR coaching transformed my responses.
Don't let nerves cost you the offer
Practice technical interviews until walking through your reasoning feels effortless.
100% free · No credit card required