#1 Frontend Career Platform

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Practice real-world challenges, track your momentum score, ace technical interviews, and land your next frontend role — all in one place.

Trusted by 2,400+ developers
Top 8%

7-day streak

Keep it up!

GK

Ghazi Khan

React · Next.js · Tailwind

30-day

Momentum Score

742 +12%

Top 8%this month

Last 14 days↑ Trending up

50+

UI Challenges

500+

Questions

87%

Hired Rate

2,400+

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.

01

Practice

Solve real-world UI challenges, debug broken code, and build components that mirror actual product work.

02

Prepare

Ace technical interviews with curated questions, system design topics, and AI prompt mastery.

03

Proof

Build a verified public portfolio with your momentum score, badges, and completed challenges.

04

Hired

Browse frontend-only job listings from LinkedIn, YC, and top ATS sources — and apply with confidence.

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Experimental Mode

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
SYSTEM HEALTHCRITICAL

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.

Explore
Coming Soon

Debugging Challenges

Hunt down and fix real bugs in broken codebases. Sharpen your debugging instincts.

Coming Soon

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.

Explore

Momentum Score

742 +12%

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

Alex Frontend

React · Next.js · Tailwind CSS

18

UI Challenges

7

Build Blocks

54

Questions

742

Score

Earned Badges

Consistent CoderTop 10%7-Day StreakUI Specialist
Momentum Score742 / 1000

Ace Your Interviews

100+ curated questions across React, JavaScript, TypeScript, CSS, and more — from beginner to advanced.

How would you implement a calendar component with event scheduling in React?
Design a full-featured calendar with day/week/month views, event creation, drag-to-resize, recurring events, and conflict detection.
advanced
How would you implement a carousel/slider component in React?
Build a performant, swipe-friendly carousel with auto-play, infinite looping, touch/keyboard navigation, and animated transitions.
intermediate
How would you build a collaborative whiteboard in React?
Design a real-time collaborative whiteboard using canvas, WebSockets/WebRTC, CRDT syncing, undo/redo, and multi-user presence.
advanced
How would you design a modal manager system in React?
Create a global modal manager with stacking, portal rendering, focus trapping, ESC handling, and dynamic modal types.
advanced
How would you design a multi-tab form with data persistence in React?
Build a multi-tab (wizard-like) form that persists data across tabs, auto-saves to localStorage or backend, handles validation per tab, and recovers on reload.
intermediate
How would you implement a multi-select dropdown with search in React?
Design a performant multi-select with search, keyboard navigation, tag rendering, virtualization for large option sets, and async loading.
advanced

Find the Right Opportunities

Frontend-only jobs from LinkedIn, Upwork, Y Combinator, and verified ATS sources. No noise, no irrelevant listings.

Infosys

Infosys

4 days ago

Java full stack, React Developer

FULL TIME

Bengaluru, Karnataka, India

Infosys

Infosys

4 days ago

.Net angular developer

FULL TIME

Hyderabad, Telangana, India

Siemens Healthineers

Siemens Healthineers

4 days ago

Full Stack Developer (Angular, C#, .NET)

FULL TIME

Bengaluru, Karnataka, India

Netrolynx AI

Netrolynx AI

4 days ago

Frontend Developer

FULL TIME

India

Netrolynx AI

Netrolynx AI

4 days ago

Frontend Developer

FULL TIME

India

AgileGrid Solutions

AgileGrid Solutions

4 days ago

Frontend Engineer

FULL TIME

India

Stop Collecting Tutorials. Start Building Proof.

Join 2,400+ frontend developers who are practicing consistently, tracking their momentum, and landing the jobs they actually want.

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