Machine Coding
90 min · build + extend
Build, defend, extend under a curveball.
Practice interviews. Until the real one feels easy.
Stop grinding random playlists and sheets. Solve a list curated for you — one that knows your gaps and bridges them.
First mock freeReal code executionReport in minutes
app.techclinic.io/interviews/room
Warm-up44:59 left
AI Interviewer · machine coding
Speaking
Let's begin — how would you model this order-pricing system?
PricingEngine.jstests run on submit
Build → Probe → Curveball
What we do
Interview. Report. Improve. Repeat.
STEP 01
Take the interview
A voice AI runs a real round, live.
STEP 02
See gaps & the bar
Every skill scored against the hiring bar.
STEP 03
Get the fix
Each gap links to a lesson or drill.
STEP 04
Prove it next round
Readiness climbs, round after round.
Correctness comes from hidden-test execution— never the AI's opinion.
The report
See your gaps. See the bar. Know the distance.
Machine coding · report card
Aarav Sharma
Order-pricing engine · 90-min round · Jun 28, 2026
HireClears the target bar (78) — L5 range.
0/100
Readiness · above the bar · +8 vs last round
78th percentile · SDE-2 cohort
Functionality & Correctness35% · from test execution88
Design & Extensibility30%80
Code Craft20%73
Reasoning & Communication15%81
What's working
Clean strategy split in PricingEngine.apply() — new rules drop in without touching the core.
All 9 hidden tests pass, including the concurrency curveball.
Where you lost points
processOrder() does three things — split it for testability.
Sparse tests: only the happy path is covered.
Real execution · AI-drafted, engineer-reviewedSee your climb →
Track your improvement
Every round moves the line.
Your readiness, round by round Hire bands▲ +40 start to finish
The HLD round
Talk. Your architecture builds itself.
app.techclinic.io/interviews/ai-hld
AI Interviewer · system design
Listening
Design a URL shortener — 100M redirects a day.
Learn with TechClinic
Between rounds, you don't get a course. You get a brain.
Traditional EdTech
“Do this course. Then that one.”
TechClinic
One brain that works with you, daily.
Your TC Brain
It remembers every round.
Your gaps, wins and goal carry into every quiz, drill and interview.
AI Coach Ira
15 minutes. Any topic. Out loud.
A focused voice session on exactly what your last report flagged.
Your first Ira session is freeAI that learns the way you learn — so you reach your goal faster.
The rounds
Every round you'll actually face.
DSA Round
60 min · live coding
Solve out loud — execution scores it.
Low-Level Design
60 min · design + code
Model a real feature, defend the trade-offs.
System Design
60 min · architecture
Architecture at scale, probed live.
Not sure? A free intro call picks your first round.
The library behind it
Everything the interviews test, taught.
4 + 1AI rounds, plus a free intro call
90 minflagship machine-coding round
100%correctness from real code execution
Minutesfrom round end to full report