Building in public · Week 1

The career growth system
that actually holds you accountable.

One task per day. You build the solution in an AI-native practice room: prompting, iterating, making judgment calls.
When you're done, a verifier reads your entire session and asks about the decisions you made. Not your memory. Your judgment.

Day 6 In public build
$9/mo Founding rate
Locked forever

Career growth, gamified.

Think Duolingo, but instead of learning Spanish, you're closing the gap between where you are and where you want to be professionally. You build real solutions in an AI-native practice workspace, prompting, iterating, and making judgment calls. Then a verifier reads your entire session and asks about the specific decisions you made. Not a quiz. A technical conversation anchored to what you actually did.

01
STEP 01

Onboard in 60 seconds

Set your career goal in one sentence. Pick one task from three options. Your choice signals your starting level. No CV, no lengthy assessment.

"I want to get promoted to senior engineer"
Pick the one that interests you:
Write a design doc for a feature you'd propose at work
Build a REST API with auth, rate limiting, and testsSelected
Review this pull request and leave senior-level feedback
02
STEP 02

Build with AI. Get tested on your judgment.

Open the practice room on desktop. Prompt an in-room AI to build the solution, iterate until you're satisfied. A passive concerns panel tracks which sub-skills you've addressed. When you're done, a verifier reads your entire prompt history and asks about the specific decisions you made. Not "what is a sliding window?" but "on your third prompt you added 'thread-safe'. What in the first response made you notice that was missing?"

Brief
Build a sliding window rate limiter. Handle 10k req/min across 6 servers.
Concerns
✓ distributed counter
✓ window reset
○ race condition
○ clock skew
Prompts
► implement with Redis INCR
► add expiry per window
► make it thread-safe
Verification
Your third prompt added "thread-safe". What in the first response made you notice that was missing?
Gap detected Clock skew across servers not addressed. Plan updated: distributed time sync tomorrow.
03
STEP 03

By day 3, it knows you

After 2-3 sessions, Climbr has real signal on your level. It surfaces a personalized plan: your strengths, your gaps, and what to focus on next. Then it keeps refining that read every day.

After 1 week, Climbr knows you:
✓ Strong: API design, writing clean and testable code
↑ Gap: system design. You avoid questions about scaling and tradeoffs
↑ Gap: technical communication. Design docs are underspecified
04
STEP 04

You know exactly where you stand.

No vague progress bars. Climbr tells you which roles you're ready for right now and exactly which gaps remain. Based on real conversations, not checkboxes.

Mid-level Engineer Ready
Senior Engineer Almost (2 gaps)
Staff Engineer Not yet (5 gaps)
System Design
4/10
Behavioral Leadership
5/10
API Design
8/10
Close 2 gaps to unlock Senior Engineer: Ready
View gaps →
Live demo

See how Climbr
knows you.

Tell it your goal and stack. It hands you a real task and opens the practice room. Build with AI, then get verified on your judgment. No signup, no mockup.

See it work →

What career goal are you working toward?

Get promoted to senior
Land a better job
Build new skills

Your task for today:

Implement transaction rollback on constraint violation 45 min · Backend

ChatGPT gives you a plan.
Climbr makes you execute it.

Deadlines you agree on

You and Climbr set the task and the due time together. It checks in exactly when you said you'd be done, not on a generic schedule.

Verification, not vibes

The verifier holds your full prompt history. Questions are anchored to specific decisions: "you accepted this version without asking about race conditions. Walk me through why." Using AI to build is expected. Prompting without understanding is exposed immediately.

Adapts every single day

Struggled? It breaks the task down. Crushed it? It pushes harder. Avoided something? It notices the pattern. The plan reshapes after every interaction.

Months of context

After weeks of daily check-ins, Climbr knows your strengths, blind spots, and avoidance patterns better than any manager. That context compounds. It never resets.

Limited founding offer

Lock in your rate. Forever.

20 founding member spots. After that, the price goes up and this offer disappears.

Full access: unlimited daily tasks, AI coaching, mock interviews
Rate locked forever. It never goes up
$9/mo
Regular price
$19/mo
- of 20 founding spots claimed

The honest answers.

Building in public with a 5-week MVP timeline. Follow the public roadmap to see exactly what's being built and when.
Your card is charged today to lock in your founding rate. Recurring billing starts when the app launches, not before.
You get a full refund, no questions asked. The 4-week timeline is public and tracked. If I miss it, you're not on the hook for it.
For now, yes. Phase 2 expands to data scientists, ML engineers, and DevOps/SRE. Phase 3 opens up more roles. We're rolling out deliberately so the coaching quality stays high.
ChatGPT can generate a plan. It can't agree on a deadline with you, show up exactly when you said you'd be done, give you a structured practice room to build with AI, read your entire prompt history, ask about the specific decisions you made mid-session, spot that you've been avoiding distributed systems for two weeks, and reshape the plan based on all of that. Climbr is an accountability system that uses AI, not an AI that hopes you'll hold yourself accountable.
Full access: unlimited daily tasks, AI verification, adaptive replanning, weekly debriefs, voice mock interviews, and progress dashboard. Rate is locked forever at $9/mo. Regular price will be $19/mo.
Yes. No lock-in, no tricks.