employed.
ace the interview.
one puzzle at a time.
duolingo-style interview prep for SWE & quant trading. start with one free CODING daily challenge, then add focused practice, global challenges, and linked deep-think runs.
📱launching on ios. join the waitlist above.
two tracks.
train for the interview
you're actually facing.
SWE prep
leetcode-style intuition, no typing required
builds the fast mental models that get you through SWE screens
- big-o analysis
- debug the code
- predict output
- data structure matching
- pattern identification
- system design
- sql
- fill the blank
- order the steps
trading floor prep
mental math, probability & logic for buy-side interviews
drills the fast-twitch intuition that trading floor screens demand
- mental math
- probability
- expected value
- sequences
- logic puzzles
- brain teasers
- patterns
- speed approximation
how it works.
five minutes.
every day.
start with CODING for SWE prep. pro unlocks QUANT too, with trading-floor drills for probability, logic, and mental math.
current modes.
daily reps.
targeted practice.
daily challenge
one free CODING run each day
a compact difficulty ramp built for consistency, streaks, and daily progress.
regular practice
the daily shape without the daily limit
use the familiar ramp when you want more reps after today's challenge.
quickfire blitz
speed drill for fast pattern recognition
rapid-fire easy-to-mid questions. trust your gut and keep moving.
precision
accuracy-first practice with tighter selection
mid-to-hard questions aimed at careful reasoning. accuracy beats speed.
deep think
one harder puzzle or linked challenge flow
slow down for a larger reasoning problem, including incident-style linked challenges when available.
previously wrong
review missed questions until they stick
pull from your incorrect list and turn weak spots into clean wins.
your journey.
start as an intern.
earn a rank that fits your track.
coding ranks
quant ranks
streak flames
elo skill ratings
every puzzle type has its own elo starting at 1000. answer correctly to climb. tracked separately for coding and quant.
leaderboards.
prep is better
with rivals.
invite friends, compete on xp, compare your elo ratings skill by skill, and check the global table when a daily challenge goes live.
- ✓friends leaderboard for people you invite
- ✓global leaderboard for daily challenge comparison
- ✓head-to-head elo comparison per skill type
- ✓share your session score to instagram stories
- ✓invite via link: friends join your leaderboard directly
tap a friend to compare elo ratings
pricing.
free to start.
go pro when you're ready.
employed. is free for one CODING daily challenge, global challenges, progress, and leaderboards. upgrade to pro for both tracks, extra practice modes, unlimited sessions, unlimited lessons, pro-only puzzles, and missed-question review.
cancel anytime, billed through apple. no card needed to start.
- ✓1 CODING daily challenge per day
- ✓global daily challenge
- ✓7-day trial: one quickfire, precision, or deep think use per day
- ✓starter lesson access where available
- ✓streak tracking + xp + levels
- ✓friends + global leaderboards
- ✓progress syncs across devices
- ×QUANT + unlimited extra practice
no credit card needed
- ✓CODING + QUANT tracks
- ✓extra practice modes: regular, quickfire, precision, deep think
- ✓unlimited daily sessions
- ✓unlimited lessons to learn and get better
- ✓pro-only puzzles
- ✓review of previously wrong questions
save $75.89 vs monthly, $0.55/day
prices shown in usd (converted from gbp, approximate). subscriptions managed via apple. cancel anytime in ios settings.
employed.
your next interview
isn't far away.
five minutes a day is all it takes. start your streak today.
launching on ios. no web version.