Learn frontend architecture through real workplace chaos
Stop building tutorials. Start building judgment. FrontendCheck simulates authentic workplace scenarios where requirements change, stakeholders conflict, and your architectural decisions actually matter.
Tutorials don't prepare you for the real job
You can build a to-do app in twelve different frameworks. But nothing prepares you for what actually happens at work.
Requirements change mid-sprint
You architected for X. Client just requested Y. Now your elegant solution is technical debt waiting to happen.
Technical debt compounds fast
That "temporary" fix from last week now blocks three features. Your shortcuts became shackles, and you're the one stuck maintaining them.
Stakeholders contradict each other
Design wants animations. PM wants speed. Tech lead has opinions about both. Learning to navigate this is a skill, but who teaches it?
Performance tanks in production
It worked perfectly with your test data. Now real users hit it with 10,000 rows and the CEO is watching the demo lag.
Experience workplace chaos.
Without the consequences.
FrontendCheck simulates real projects through an inbox-style interface. Navigate evolving requirements, make architectural trade-offs, then see how a senior developer handles the same situation.
Get your project brief
Start with a seemingly simple assignment from your PM. Requirements are clear. Deadline looks reasonable.
Navigate the chaos
Work through 10+ emails as requirements shift, stakeholders weigh in, and complications pile up. Just like the real job.
Build your solution
Code the feature while making real architectural trade-offs under real constraints. Document your reasoning.
Compare approaches
See the senior developer solution with full architectural reasoning. Learn from the delta between your choices and theirs.
5 scenarios that mirror real work
Each challenge presents a different architectural problem you'll face in your career. No contrived examples, just authentic workplace scenarios.
Testing Foundation
Build a user registration form that's architected for testing from Day 1. The way you structure your code will determine whether unit tests, integration tests, and E2E tests are straightforward or painful.
Feature Flag System
Build a pricing page that's architected for constant experimentation. Implement a feature flag system that allows A/B testing, gradual rollouts, and kill switches without deploying code.
Multi-Tenant Admin Panel
Build an internal admin panel for managing users across a multi-tenant SaaS platform. Handle complex permission logic that adapts gracefully as requirements evolve and new access levels are added.
Internationalisation
Build a checkout flow that's ready for international markets from Day 1. Support multiple languages, currencies, date formats, and right-to-left layouts without retrofitting later.
Design Evolution
Build a component library with design tokens from the start. When design requirements change - dark mode, rebrand, new spacing scales - your components adapt through centralized tokens, not file-by-file refactors.
Everything you need to level up
5 Complete Challenges
Each with 10+ emails, evolving requirements, and real architectural decisions to make.
Senior Developer Solutions
Detailed breakdowns of architectural reasoning, trade-offs, and decision-making processes.
Self-Assessment Rubrics
Evaluate your own solutions against professional standards. Know exactly where to improve.
Framework Agnostic
Principles apply to React, Vue, Angular, Svelte, or vanilla JS. Focus on thinking, not syntax.
Self-Paced Learning
Work through challenges on your schedule. Spend 3-5 hours per challenge, or spread over weeks.
API layer included
Each challenge comes with pre-built TypeScript functions. No backend setup needed, meaning you can focus on the frontend.
Invest in your architecture skills
One purchase. All challenges included.
- 1 complete challenge
- 10 emails delivered over 10 days (real email sequence)
- Experience the authentic pacing of real work
- All 5 additional challenges (instant access)
- Email-style scenarios (self-paced, no waiting)
- Detailed architectural solutions
- Comprehensive rubrics for each challenge
- Simulated APIs with realistic behavior (zero backend hassle)
Questions? Answers.
Built by Claudia
I'm a senior frontend developer with 7+ years building applications at scale. After watching talented developers struggle with the same problems I once faced — not the code itself, but the chaos around it — I created FrontendCheck.
These challenges are based on real situations I've navigated. The last-minute requirement changes, the performance emergencies, the stakeholder conflicts. The solutions reflect the architectural thinking I wish someone had taught me earlier.
Stop practicing in a vacuum.
Start building judgment.
The gap between tutorials and professional work doesn't close by doing more tutorials. It closes by practicing the messy, human parts of software development.