Skill-gap baseline
A 40-minute diagnostic across data structures, system design and your stack. You get a ranked list of what is actually holding your next role back.
CampusRung, for professionals
Your next role is a few rungs up. Climb deliberately.
StackRung finds the gaps between where you are and the level you are aiming for, then closes them in short sessions that fit around work - ending in mock interview loops that feel like the real thing.
Built for people with a job already
Same adaptive engine as CampusRung, retuned for senior scope and limited time.
Interview loops, rehearsed
Full-length mock loops with an AI interviewer: coding, system design and behavioural rounds, scored against a rubric and debriefed in writing.
Learning paths that fit a workweek
Plans sized in 30-minute blocks. Skip what you already know, go deep where the baseline says you are thin.
System design studio
Work through real designs - ledgers, queues, feeds - then compare your trade-offs with a model answer instead of a wall of theory.
Level-aware targets
Prep for SDE-2, senior or staff. Expectations change by level, so your readiness score does too.
Brag document & mistakes log
Capture wins for your next review and keep a spaced-revision log of every question you got wrong.
How it works
- 01
Set your target
Pick the role, level and companies you are aiming at.
- 02
Run the baseline
Find your real starting point in one sitting.
- 03
Climb the rungs
Short daily practice, weekly timed sets, a monthly mock loop.
- 04
Walk in ready
Track readiness per company until the loop feels familiar.
Pick your track
- Backend engineering
- Frontend engineering
- Full-stack
- Data engineering
- Machine learning
- DevOps & SRE
- Mobile
- Engineering management
Pricing
Final plans and prices will be announced at launch.
Starter
Free
Try it out
- Skill-gap baseline
- Weekly practice set
- Mistakes log
Pro
Coming soon
For an active job search
- Unlimited AI mock loops
- System design studio
- Level-aware readiness
- Written debriefs
Teams
Talk to us
Upskilling for engineering orgs
- Cohort dashboards
- Custom skill frameworks
- SSO
Questions
How is StackRung different from CampusRung?
CampusRung is built for students preparing for campus placements. StackRung takes the same engine - baseline, learning paths, adaptive practice, mock interviews - and retunes it for working engineers: senior-level scope, system design, and plans that fit around a job.
I only have a few hours a week. Will this work?
Plans are built from 30-minute blocks and sized to the hours you tell us you have. The baseline lets you skip material you already know.
Can I use my CampusRung account?
StackRung runs on the same platform, so existing accounts are meant to carry over. Sign-in is wired up in the app at launch.
Is my data shared with my employer?
No. Individual accounts are private. Only a Teams plan shares cohort-level progress, and only with the admins your organisation designates.
Find your first gap in 40 minutes
The baseline is free and tells you where to spend your next ten hours.
Take the free baseline