Get Hired as a Frontend Engineer
Practice real-world challenges, track your momentum score, ace technical interviews, and land your next frontend role, all in one place.
7-day streak
Keep it up!
Ghazi Khan
React · Next.js · Tailwind
Momentum Score
Top 8%this month
50+
UI Challenges
500+
Questions
87%
Hired Rate
5,100+
Developers
Recent Activity
Completed "Navbar Dropdown" UI challenge
2h ago
Answered 4 React interview questions
1d ago
Maintained 7-day streak
1d ago
How IOCombats Works
A four-step loop that takes you from learning to landing the job.
Practice
Solve real-world UI challenges, debug broken code, and build components that mirror actual product work.
Prepare
Ace technical interviews with curated questions, system design topics, and AI prompt mastery.
Proof
Build a verified public portfolio with your momentum score, badges, and completed challenges.
Hired
Browse frontend-only job listings from LinkedIn, YC, and top ATS sources — and apply with confidence.
Interactive Learning
Understand difficult concepts visually.
DSA Patterns
Most people memorize DSA patterns instead of understanding them, then freeze the moment an interview question looks slightly different. Our visualizer walks you through every pattern step by step so you see exactly how the algorithm moves through the data, which makes the pattern stick.
- Real interactive visualizers for arrays, linked lists, trees, graphs, heaps, and intervals, not static diagrams
- Step-by-step animations that make abstract algorithm behavior concrete
- Curated practice problems paired with every pattern
Learn the architecture, then apply it
The architecture behind real frontends, then the interview problems that apply it. Foundations first, practice problems second.
How a page becomes interactive, where state lives, what makes it fast, and the concerns that are expensive to retrofit. Read these in order.
Frontend Survival
A gameplay simulator where you maintain a live application while simulated visitor waves hit your system. Optimize code on the fly to prevent the app from crashing.
- Prevent UI thread blocking under heavy DOM updates
- Manage 10,000+ concurrent state updates
- Balance bundle size vs feature delivery in real time
FPS
14
DOM Nodes
42,801
INCOMING VISITOR WAVES
40,981
Total plays
10,231
Completed rounds
Practice Real Frontend Engineering
Four types of challenges that mirror what you'll face in actual frontend roles.
UI Challenges
50+ challenges
Rebuild real product interfaces from design specs. Framework-agnostic — React, Vue, Angular.
Debugging Challenges
Hunt down and fix real bugs in broken codebases. Sharpen your debugging instincts.
Refactoring Challenges
Improve messy legacy code — reduce complexity, improve readability, maintain tests.
Build Blocks
30+ challenges
Build isolated components from scratch: carousels, modals, infinite scroll, and more.
Momentum Score
30-day window
Top 8%
7
Day Streak
23
Challenges Done
5
Badges Earned
+12%
Score Growth
Track Progress Without Stress
Your Momentum Score is a rolling 30-day metric that rewards consistency over cramming. Show up regularly — the score takes care of itself.
- Rolling 30-day momentum score updated daily
- Visual activity chart to spot your peak days
- Badge system for every milestone you hit
- Public profile proves your consistency to employers
Your Portfolio of Proof
Stop listing skills on a resume. Show verified, real work. Your IOCombats profile is a living record of challenges you've solved, questions you've answered, and consistency you've maintained.
- Shareable public URL — send it to any recruiter
- Verified challenge completions, not just claims
- Momentum score as a proxy for your work ethic
- Badge timeline that shows your growth over time
Ace Your Interviews
100+ curated questions across React, JavaScript, TypeScript, CSS, and more — from beginner to advanced.
Hiring? Reach engineers who are already proving it.
Post your frontend role in front of engineers actively practicing on IOCombats. Free for your first 3 months, no payment required to get started.
Avg. 850+ views
in the first 7 days
Avg. 120 apply clicks
per listing
Live within 24 hrs
after review
