Practical Portfolio Projects
Skip the artificial practice tasks. Build real-world algorithms, engines, and services across various complexity levels to craft a solid portfolio as you learn.
JS Chess Engine
Interactive board, move validation, castling, and position evaluation algorithm.
Excel Engine from Scratch
Reactive spreadsheet processor with math formula interpreter.
Pixel-Perfect Figma Layout
Premium interface with responsive Flexbox/Grid and complex CSS animations.
3D Spatial Snake
Three-dimensional gameplay with lighting, materials, and WebGL.
2D Pixel Platformer Engine
Tilemap loader, physics collision detection, sprite animations & jump mechanics.
Rigid Body Physics Engine
Verlet integration, SAT collision solver, impulse resolution & friction.
High-Performance KV Store
In-memory key-value database engine with LRU eviction policy & WAL logging.
REST API Gateway & Auth Guard
Rate limiter, JWT token rotator, proxy router & middleware chain.
Real-Time Pub/Sub Message Hub
Scalable WebSocket server handling room channels, heartbeats & reconnection.
Real-Time Whiteboard & Docs
Multi-user cursor tracking, CRDT conflict resolution & canvas rendering.
Headless Portfolio & Blog CMS
Markdown editor, dynamic page generator, draft previews & database persistence.
SaaS Webhooks & Billing Engine
Stripe webhook receiver, subscription tier state machine & invoice generator.
AI RAG Knowledge Agent
Vector DB embeddings, document semantic search & contextual LLM synthesis.
LLM Code Assistant
AST parser, prompt engineering pipeline & local LLM function calling.
Autonomous AI Agent
Tool use, multi-step execution planner & autonomous decision loop.