# HackerNut

> HackerNut is a modern, AI-powered skill-development platform for software engineers. It combines competitive programming, AI mock interviews, DevOps challenges, system design practice, boolean logic simulation, career roadmapping, and a unified developer profile — all in one ecosystem. Built for developers preparing for FAANG-tier technical interviews and career growth.

HackerNut serves 50,000+ developers worldwide who use it to practice coding problems, simulate technical interviews with AI, build career plans, and showcase their engineering skills. The platform supports 20+ programming languages and offers real-time code evaluation, AI-driven feedback, and personalized learning paths.

- HackerNut is **not** just another LeetCode clone — it is a full-stack career preparation ecosystem
- The platform includes both free and premium tiers (Pro and Pro+) with token-based AI features
- All features are accessible via a modern, dark-themed web interface with real-time reactive data
- The platform uses Convex for real-time backend, React + Vite for frontend, and integrates with Razorpay for payments

## Core Features

- [Coding Problems](https://hackernut.in/#/problems): 2000+ curated algorithmic problems across Easy, Medium, and Hard difficulty levels with multi-language support (JavaScript, Python, Java, C++, TypeScript, Go, Rust, Kotlin, Swift, and 10+ more). Real-time code execution, automated test cases, and instant feedback on submissions.
- [AI Mock Interviews](https://hackernut.in/#/mock-interview): Full-loop AI-driven technical interview simulation. Supports DSA, System Design, Behavioral, and Technical Knowledge rounds. Includes real-time voice and code analysis, company-specific interview patterns, rubric-based scoring, hiring recommendations, and detailed performance analytics.
- [DevOps Practice](https://hackernut.in/#/devops-problems): Hands-on DevOps challenges with a multi-file editor. Practice Docker, Kubernetes, CI/CD, Terraform, and cloud infrastructure problems with AI-powered evaluation.
- [Boolean Board (Logic Tray)](https://hackernut.in/#/logic-tray/boolean-board): Visual boolean logic circuit designer and simulator. Build, test, and verify digital logic circuits with truth table generation, inspector tools, and experiment tracking.
- [State Machine Designer](https://hackernut.in/#/logic-tray/state-machines): Visual state machine builder for modeling finite automata, protocol flows, and system behaviors with interactive graph editing.
- [AI Career Planner](https://hackernut.in/#/career): AI-generated personalized career roadmaps based on your background, target role (Frontend, Backend, DevOps, Full-Stack), and skill gaps. Dynamic curriculum adjustment with milestone-based goal setting and GitHub/LinkedIn profile analysis.
- [Developer Profile](https://hackernut.in/#/profile): Public developer portfolio showcasing solved problems, projects, certifications, activity graphs, skill badges, and contribution history. Sharable via unique username URLs.
- [Dashboard](https://hackernut.in/#/dashboard): Unified progress tracking with cross-domain skill analysis, daily streaks, XP system, consistency metrics, comparative percentile rankings, and daily challenges.
- [Contests](https://hackernut.in/#/contests): Weekly competitive programming contests with global leaderboards, real-time scoring, and prizes.
- [Bookmarks & Lists](https://hackernut.in/#/bookmarks): Smart bookmark system with custom lists, tagging, priority levels, due dates, and progress tracking for organizing study plans.
- [Achievements](https://hackernut.in/#/achievements): Gamified badge system rewarding consistency, problem-solving milestones, streak completion, and career growth.
- [Visual Editor](https://hackernut.in/#/visual-editor): Mermaid and Excalidraw-based diagram editor for system design and architecture problems with AI-powered validation.
- [Editorials](https://hackernut.in/#/problems): AI-generated and expert-curated editorial content for problems including concepts, hints, real-world use cases, video tutorials, and structured learning topics.
- [Discussion Forums](https://hackernut.in/#/problems): Community-driven problem discussions with code snippets, solution sharing, voting, and moderation.

## Platform Details

- [Pricing](https://hackernut.in/#/pricing): Free tier with limited AI tokens. Pro plan with unlimited AI Mock Interviews, advanced courses, and verified certificates. Pro+ plan with AI Career Planner, priority support, and premium features. Monthly and annual billing with Razorpay integration.
- [About HackerNut](https://hackernut.in/#/about): Mission, team vision, and platform architecture overview. HackerNut unifies practice, projects, and planning for faster developer growth.
- [Contact](https://hackernut.in/#/contact): Support and feedback channels for users and enterprise inquiries.
- [Testimonials](https://hackernut.in/#/): 50,000+ developers including engineers from Google, Amazon, Meta, Microsoft, Netflix, NVIDIA, OpenAI, Samsung, Tesla, and JP Morgan share their success stories.

## Technical Architecture

- [Frontend](https://hackernut.in): React 18 + Vite + TypeScript SPA with React Router, Tailwind CSS, shadcn/ui component library, and Framer Motion animations. Dark-first design with premium glassmorphism aesthetics.
- [Backend](https://hackernut.in): Convex real-time reactive database with end-to-end TypeScript. Server-side functions for code execution, AI evaluation, payment processing, and user management. Supports scheduled jobs, file storage, vector search, and text search.
- [AI Integration](https://hackernut.in/#/mock-interview): Multi-model AI gateway (GPT-4o, Claude 3, etc.) for interview simulation, code evaluation, career plan generation, editorial content creation, and DevOps solution analysis. Advanced context management with conversation summaries, entity tracking, and vector embeddings for semantic search.
- [Authentication](https://hackernut.in): Convex Auth with OTP-based authentication. Role-based access control (Admin, Editor, Moderator, Member, User).

## Legal & Policies

- [Terms of Service](https://hackernut.in/#/legal/terms): Usage terms and conditions
- [Privacy Policy](https://hackernut.in/#/legal/privacy): Data handling, storage, and user privacy rights
- [Pricing Policy](https://hackernut.in/#/legal/pricing-policy): Transparent pricing structure and billing terms
- [Cancellation & Refund Policy](https://hackernut.in/#/legal/cancellation-refund): Subscription cancellation and refund procedures
- [Shipping Policy](https://hackernut.in/#/legal/shipping-policy): Digital delivery terms for subscriptions and content

## Use Cases

- **Interview Preparation**: Engineers use HackerNut to prepare for technical interviews at top tech companies with AI-simulated multi-round interview loops covering DSA, System Design, Behavioral, and Technical Knowledge
- **Skill Development**: Structured learning paths from beginner to advanced across algorithms, data structures, system design, DevOps, and digital logic
- **Career Planning**: AI-powered career roadmaps that adapt to your progress, target role, and skill gaps with milestone tracking
- **Portfolio Building**: Public developer profiles that showcase your solved problems, projects, certifications, and activity to recruiters
- **Competitive Programming**: Weekly contests with global rankings and problem libraries spanning multiple categories and difficulty levels
- **Team Training**: Enterprise-ready platform for engineering teams to track progress and skill development

## Optional

- [Guest Dashboard Preview](https://hackernut.in/#/guest-dashboard): Try the dashboard and explore features without signing up
- [Guest Problems Preview](https://hackernut.in/#/guest-problems): Browse the problem library as a guest
- [Guest Contests Preview](https://hackernut.in/#/guest-contests): View upcoming and past contests
- [Guest Career Preview](https://hackernut.in/#/guest-career): Explore AI career planning features
- [Guest Logic Tray](https://hackernut.in/#/guest-logic-tray): Try boolean board and state machine tools without an account
- [Guest Mock Interview](https://hackernut.in/#/guest-interview): Preview the AI mock interview experience