Practice Real-World Frontend Challenges & Prepare for Developer Jobs
AI can generate code, but great Frontend Engineers understand it.
IOCombats helps you master real-world UI development with design-to-code challenges that sharpen your skills not just your shortcuts.
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 under load.
Interview Questions to Practice and Ace Your Next Dev Interview
Explore Jobs from Top Sources
Data from: LinkedIn, Upwork, Y Combinator, ATS & more
Bengaluru, Karnataka, India
Mogi I/O : OTT/Podcast/Short Video Apps for you
about 1 hour ago
Full Stack (React Native & MERN - Mandatory)
Saket, Madhya Pradesh, India
India
India
India
India
Latest Blogs & Articles
Stay updated with the latest insights and stories from our blog.
AI-First Web Apps: System Design Patterns for LLM-Native Products
AI-first applications are not just apps with AI features. They are fundamentally different systems designed around LLM input, context, and continuous feedback loops. This guide breaks down the architecture, patterns, and trade-offs you need to build them correctly.
Fine-Grained Reactivity: The Architecture Replacing the Virtual DOM
Modern frameworks are moving beyond the Virtual DOM toward fine-grained reactivity systems that update only what actually changes. Here is how the architecture works and why it is shaping the future of frontend engineering.
Biome v2 vs ESLint + tsc: Should You Replace Your Toolchain?
A senior-level analysis of Biome v2 versus the traditional ESLint + TypeScript compiler setup. We evaluate performance, type-aware linting, DX, ecosystem maturity, and migration strategy in 2026.
Backendless Architecture with Full-Stack TypeScript and Edge Functions
A senior-engineer breakdown of backendless architecture in 2026 using full-stack TypeScript, edge functions, and server actions. Learn how to eliminate bespoke REST APIs while preserving type safety, performance, and observability.
AI-First Frontend Architecture: From Prompt to Production
A senior-engineer breakdown of AI-first frontend architecture in 2026 — from prompt-driven UI generation to production-grade systems with tests, observability, and performance guarantees.
Micro-Frontends in 2026: Architecture Win or Enterprise Tax?
Micro-frontends promised independent teams and faster shipping. In 2026, the question is simpler: are they solving your problem, or creating a new one?
Developer Prompts to Boost Your Productivity
backend | database
Design Database Relationships Using AI
Use this AI prompt to automatically design one-to-many and many-to-many database relationships between entities, including relational mappings and foreign keys.
Claude 3 Opus or GPT-4o
backend | database
Optimize MongoDB Queries for Performance
Use this AI prompt to analyze MongoDB queries, detect performance issues, and suggest indexing or aggregation optimizations for faster execution.
Claude 3 Opus
backend | database
Generate Mongoose Schema for MongoDB Collections
Use this AI prompt to generate MongoDB Mongoose schemas with validation, indexes, timestamps, and references between collections for scalable data modeling.
GPT-4o or Claude 3.5 Sonnet
backend | nodejs
Implement JWT Authentication in Node.js and Express
Use this AI prompt to generate complete JWT authentication for Node.js with login, signup, and middleware-based token verification for protected routes.
GPT-4o or Claude 3.5 Sonnet
backend | nodejs
Add Centralized Error Handling Middleware in Express
Use this AI prompt to create a global error-handling middleware for Express that formats error responses, logs issues, and prevents crashes in production.
Claude 3.5 Sonnet or GPT-4o
backend | nodejs
Optimize Node.js and Express API Performance
Use this AI prompt to analyze your Express app and get AI-generated recommendations for performance improvements such as caching, async optimization, and route-level profiling.
Claude 3 Opus or GPT-4o
Master Frontend Skills by Rebuilding Real Interfaces
Skip the to-do apps and generic layouts — IOCombats gives you realistic, hand-crafted UI challenges inspired by actual product designs. Learn by doing, not by watching.
- Framework-agnostic challenges — use React, Vue, Angular and more
- Responsive layouts with Figma-style design references
- Component-based tasks that mirror real-world apps
- Track submissions and showcase your public profile
Find Frontend Jobs Without Wading Through Irrelevant Listings
We aggregate jobs from LinkedIn, Upwork, YC startups, and verified ATS sources — and show you only the ones that matter for frontend engineers.
- Remote, local, freelance, and full-time jobs
- Roles filtered by frontend and fullstack technologies
- Clean job cards with company info, salary, and direct apply links
- Stay within your tech niche and job preferences
Ready to Level Up?
Join the waitlist and get early access to IO Combats!